298 Driving tips

X Replace buckled or damaged wheels. on public roads. Remove any trapped foreign
X Replace missing valve caps and valve bodies.
extensions. Dirt and mud on the tyres and on the road
X Check and adjust the tyre pressure surface reduce road grip, particularly if the
(Y page 401). road surface is wet. This could cause your
X Check whether parts of plants or branches vehicle to start to skid. Always clean your
have become trapped. vehicle carefully after every journey off-road
or on a construction site and before journeys
X Check the entire vehicle underside, brakes,
on public roads.
steering, chassis and exhaust system for
damage. Clean the following vehicle parts after a jour-
X Check the engine oil level (Y page 159).
ney off-road or on a construction site:
X Fold the folding underride guard to the road Rlighting system
position (Y page 293). Rside windows and windscreen
Driving mode

X Fold down the mud flaps. Rexterior mirrors

X Observe the notes on cleaning after driving Rsteps

off-road or on construction sites. Rdoor sills
Rgrab handles
Cleaning after driving off-road or on Rwheels and tyres
construction sites Rwheel housing and mudguard
! Only direct the compressed-air, steam or Rsteering
water jet towards the radiator surface in a Raxles
vertical direction. Ensure that the radiator Rbrakes
fins are not damaged. Remove any dirt from
Rspring elements
the radiator fins. Damaged or dirty radiator
Rchassis
fins can cause the engine to overheat. If
there is a loss of coolant or damage to the Rlicence plate
cooling and heating system, have it Rengine
checked at a qualified specialist workshop. Rengine radiator

! When using a high-pressure cleaner, keep Rtransmission

a minimum distance of approximately Roil cooler (transmission)
30 cm between the high pressure nozzle X Clean wheels, tyres and wheel housings
and the vehicle parts. Do not use a high- and remove foreign objects, e.g. stones.
pressure cleaner with a round jet nozzle.
Parts of the vehicle or engine can otherwise After operation in mud, sand, water or after
be damaged. exposure to similar dirty conditions:
Foreign bodies that have become trapped can X Clean the brake discs, brake linings, wheels
be expelled during the journey, e.g. stones in and axle joints and check them for damage.
the tyre tread or between the tyres (twin X Lubricate the axle joints. Observe the infor-
tyres). This could cause other road users to be mation in the Maintenance Booklet.
injured or vehicles — especially the wind- X Test the brakes while paying attention to
screens — to be damaged. the road and traffic conditions.
Check the tyres for foreign bodies that have
become trapped after every journey off-road
or on a construction site and before journeys
 Driving tips 299

Economical and environmentally stages in the vehicle's operating life as a

aware driving result of the teach-in process

General notes Maintenance

Fuel consumption depends on: The fuel consumption and assembly wear
Rthe vehicle version depend on regular maintenance. Regular
Rthe operating conditions maintenance of the vehicle increases road
Rmaintenance
safety and lowers fuel consumption. Keep to
the maintenance intervals. Always have main-
Rthe fuel type in use
tenance work carried out at a qualified spe-
Rdriving resistance cialist workshop.
Ryour driving style
Fuel type

Driving mode
Vehicle version
The fuel grade also affects fuel consumption.
The following components affect fuel con- Use of lower fuel grades and/or non-
sumption: approved fuel additives will increase fuel con-
Rtyres, e.g. tyre pressure, tyre condition, sumption. Make sure that you refuel with the
tyre size appropriate fuel grade (Y page 339).
Radd-on equipment and vehicle cab version,
Driving resistance
e.g. open platform, box-type body, platform
with tarpaulin General notes
Rdrive trains and the number of axles
The principle forms of driving resistance are
Rratio of the drive assemblies, e.g. transmis- incline, rolling and aerodynamic resistance.
sion and axle reduction ratio Driving resistance changes depending on, for
Radditional equipment, e.g. air-conditioning example, vehicle weight and vehicle speed.
system, auxiliary heating, power take-offs Remember that driving resistance increases
with vehicle speed.
Operating conditions
Rolling resistance
The following operating conditions affect fuel Rolling resistance and therefore fuel con-
consumption: sumption are affected by the following fac-
Rtopography, e.g. driving on level routes or in tors:
mountainous terrain Rtyre size and tyre type
Routside temperature and weather condi- Rtyre pressure, e.g. correctly set tyre pres-
tions sure reduces fuel consumption
Roperating conditions, e.g. operation on Check the tyre pressure at regular intervals
construction sites, long distance or short (Y page 401).
distance driving Rtyre type, e.g. summer or winter tyres, sin-
Rgross vehicle weight gle or twin tyres
Rregeneration of the diesel particle filter Rtyre tread and tyre width, e.g. coarse tyre
When the vehicle is in new condition, the treads such as those on winter tyres
regeneration of the diesel particle filter is increase fuel consumption
carried out more frequently than at later

Z
300 Driving tips

Rload distribution, e.g. even load distribution RDo not warm up the engine while station-
increases not only driving safety, but also ary.
tyre life RSwitch off the engine when waiting in sta-
Observe the notes on the permissible tionary traffic.
wheel and axle loads (Y page 261) and the RAvoid frequent and heavy acceleration.
data on the vehicle identification plate RAvoid adaptive braking by driving with fore-
(Y page 414). sight.
Rroad and weather conditions, e.g. wet or
RDrive in an even and considered manner.
soft road surfaces (snow or rain) increase Use cruise control (Y page 269) and the
fuel consumption distance control assistant driving systems
Aerodynamics (Y page 271).
RTake care to keep to an economical engine
Air turbulence increases aerodynamic resist-
ance and therefore fuel consumption. Air tur- speed (green area of the rev counter)
Driving mode

bulence occurs in particular at additionally (Y page 138).

installed equipment, e.g. auxiliary head- RAvoid speed peaks.
lamps. RAvoid frequent speed changes, in particular
RSet the wind deflector to the correct height at high speeds.
of the add-on equipment/semitrailer RWhenever possible, drive using the auto-
(Y page 317). matic drive program.
RWith open loads, arrange the load so that RShift gears according to requirements.
there are no gaps. Cover the load with a RAvoid frequent gear changes.
tarpaulin.
RLash down all tarpaulins on the tractor/
trailer combination securely. Diesel particle filter

Fuel-saving driving styles Important safety notes

H Environmental note G WARNING

Only switch on the air-conditioning system Flammable material such as leaves, grass or
when necessary. Fuel consumption increases twigs may ignite if they come into contact with
when the air-conditioning system is switched hot parts of the exhaust system or exhaust
on. gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
The FleetBoard EcoSupport menu window rial can come into contact with hot vehicle
in the à Driving mode menu shows informa- components. In particular, do not park on dry
tion on economical driving style (Y page 149). grassland or harvested grain fields.
The on-board computer supports you in opti-
mising your driving style and developing a ! During automatic and manual regenera-
fuel-saving driving style. tion, extremely hot exhaust gases escape
You can keep fuel consumption at low levels from the exhaust pipe. Maintain a distance
with your driving style: of at least 1 metre to other objects, e.g.
parked vehicles, in order to avoid damage
RLeave PPC switched on (Y page 276). to property.
RDo not depress the accelerator when start-
If you drive the vehicle predominantly over
ing the engine.
short distances or with low loads, automatic
RAvoid frequent cold starts.
regeneration may not be sufficient.
 Driving tips 301

If too many particles collect in the diesel par-

ticle filter, the  indicator lamp in the
instrument cluster lights up. The on-board
computer then instructs you with a yellow
event window to start manual regeneration
(Y page 170). Manual regeneration lasts
approximately 30 minutes up to a maximum
of 60 minutes (Y page 301).
If you do not observe the yellow event win-
dows and their instructions, you risk:
Ra reduction in engine performance X To activate/deactivate: press the lower
Rhaving to replace the diesel particle filter section of the Ê button.
(Y page 189) When the indicator lamp in the Ê button

Driving mode
lights up, regeneration is blocked.
Automatic regeneration
Only switch on the regeneration block for as
When the green É indicator lamp lights up long as the hazardous condition prevails. If
in the instrument cluster, automatic regener- you have switched on the regeneration block,
ation of the diesel particle filter is in progress. regeneration remains blocked even after
An automatic regeneration can begin either starting the engine again. This can result in a
while the vehicle is in motion or stationary. large number of particles quickly collecting in
Automatic regeneration only begins when all the diesel particle filter. In this case, the on-
operating conditions have been fulfilled, such board computer informs you that the regen-
as sufficiently high engine oil and exhaust eration block is still active by means of the
temperatures, for example. If an operating  Regeneration disabled message in a
condition is no longer fulfilled while regener- grey event window.
ation is in process, the É indicator lamp
goes out and the regeneration is interrupted. Starting manual regeneration
When all operating conditions are fulfilled
again, the regeneration starts again automat-
ically. Therefore, avoid interruptions in driving
as long as the É indicator lamp is lit.
i The engine noise and the engine idling
speed may change while regeneration is in
process.

Regeneration block
If you need to prevent the raised exhaust
temperatures which occur during regenera- Manual regeneration lasts approximately
tion, e.g. if you are driving into a hazardous 30 minutes up to a maximum of 60 minutes.
area, you can block regeneration. Automatic
You can only start the manual regeneration if:
and manual regeneration can then no longer
be started and any current regeneration will Rthe on-board computer has prompted you
be interrupted. to do so with corresponding event windows
Rthe regeneration block is not active

Z
302 Driving tips

X Stop the vehicle, paying attention to road If you park the vehicle without regenerat-
and traffic conditions, and keep the engine ing, you can only begin manual regenera-
running. tion after the engine warming-up phase.
While doing so, maintain a distance of at Start the manual regeneration after a thaw-
least 1 metre to other vehicles, other ing time of up to 60 minutes if:
objects and all flammable materials. RAdBlue® is frozen
X Apply the parking brake.
Ryou have parked up the vehicle without
X Shift the transmission to neutral position performing regeneration
N.
X Remove your foot from the accelerator. Replacing the filter
X Press the upper section of the É button
for approximately 3 seconds. G WARNING
Manual regeneration only begins if: Direct contact or inhalation of soot particles is
Driving mode

Rthe engine oil and exhaust temperatures hazardous to health. There is a risk of injury.
are sufficiently high Have the diesel particle filter replaced at a
RAdBlue® is not frozen qualified specialist workshop.
Rthe system is functioning trouble free
The É indicator lamp lights up in the Fuel consumption
instrument cluster and the engine speed is
increased. Fuel consumption depends on:
When regeneration is finished: Rthe vehicle version
Rthe É indicator lamp in the instru- Rthe operating conditions
ment cluster goes out Rthe fuel type in use
Rthe engine speed is reduced to idling Rmaintenance
speed Rdriving resistance
Regeneration is automatically interrupted if Ryour driving style
you: For these reasons, exact figures about any
Rmove the multifunction lever to position D individual vehicle's fuel consumption cannot
or R be provided.
Rrelease the parking brake Information and notes on how to keep fuel
Rswitch on the regeneration block
consumption to a minimum can be found in
the "Economical and environmentally-aware
Rengage power take-off
driving" section (Y page 299).
The interruption reduces the engine speed to
idling speed. i The on-board computer shows informa-
tion on the average fuel consumption in the
i The engine speed may rise and the engine trip data menu ß(Y page 148).
noise may change while regeneration is in
process. Observe the increased engine
speed when operating with power take-off. AdBlue® consumption
i If the on-board computer prompts you to AdBlue® consumption is approximately 5 % of
carry out manual regeneration when the fuel consumption when BlueTec®5 is used
outside temperature is low, start regener-
and 2 to 4 % when BlueTec®6 is used.
ation before parking the vehicle.
 Driving tips 303

Engine oil consumption

After running-in the engine, oil consumption
may reach 0.2 % of the vehicle's fuel con-
sumption.
Increased distance covered and more ardu-
ous operating conditions could result in vehi-
cles exceeding this value.

Limiting the speed

The reverse warning feature is a system
G WARNING
designed to assist you in ensuring the safety
If the vehicle combination swerves, you could of other road users. The reverse warning fea-

Driving mode
lose control of the vehicle combination. The ture cannot guarantee that there are no peo-
vehicle combination may even overturn. ple or objects behind your vehicle.
There is a risk of an accident.
The reverse warning feature is an acoustic
On no account should you attempt to warning system that is integrated into one of
straighten up the vehicle combination by the vehicle's tail lamps. If reverse gear is
increasing the speed. Reduce your speed and engaged, the reverse warning device is acti-
do not countersteer. Brake if necessary. vated and issues a warning tone.
On vehicles with a speed limiter, the maxi- When using the reverse warning device
mum speed of the vehicle is limited according described here, observe the legal require-
to national legal requirements, e.g. to approx- ments for the country you are currently in.
imately 90 km/h. When you switch on the ignition and shift into
The engine speed is automatically limited reverse gear, the reverse warning device is
when the restricted top speed is reached. activated and always set to loud.
Take this into account when overtaking. X To activate/deactivate the reverse
warning device: press and hold the *
button for longer than 2 seconds.
Reverse warning device The reverse warning device is deactivated
regardless of whether you have engaged
G WARNING reverse gear.
Other road users may ignore or fail to hear the
Vehicles with automatic activation of the
warning tone of the reverse warning feature.
hazard warning lamps (equipment depend-
There is a risk of injury if you fail to ensure that
ent): a tone sounds and the hazard warning
the area in which you are manoeuvring is
lamps are switched on when reverse gear is
clear.
engaged.
Make sure that there are no persons or X To set the reverse warning device to
objects in the area in which you are manoeu-
quiet/loud: briefly press the * button.
vring. It may be necessary to enlist the help of
If the reverse warning device is set to quiet,
a second person when manoeuvring.
the indicator lamp lights up in the *
button.
If reverse gear is not engaged, volume
reduction remains active for approximately

Z
304 Driving tips

2 minutes. The reverse warning device is Rthe vehicle is stationary for approximately
then loud again. 9 minutes with the engine running and a
gear selected
Ryou select the reverse gear
Reverse gear lock Ryou shift the ignition lock to the 0 position

Refuse-collection vehicles only: or remove the key when the frequent-stop

If the running boards in the rear area are loa- brake is activated and the parking brake is
ded, the vehicle speed is limited to a maxi- released
mum of approximately 30 km/h and the Ryou exceed the maximum permissible

reverse gear lock is activated. The reverse engine speed

gear lock prevents reverse gear selection. Rthe speed or engine speed is too high when

If the running boards in the rear area are loa- making a gear change
ded while reverse gear is engaged, a warning Rthe loading platform approach aid detects
Driving mode

tone sounds and the engine switches off. that an obstacle is too close
If the engine has been switched off by the Rthe hazard warning lamps are activated
reverse gear lock: automatically (e.g. full brake application)
X Switch the ignition lock to position 0. A warning tone sounds in addition to the
event window appearing in the display of the
X Apply the parking brake.
on-board computer, if:
X Shift into neutral.
Rthe distance control assistant warns you
X Restart the engine.
that there is a risk of collision with the vehi-
cle in front
RActive Brake Assist is activated and there is
Warning tone
a risk of collision
! If a warning tone sounds and the red event Rthe coolant level is too low or the permis-
window with the 5 symbol appears in sible coolant temperature (approximately
the on-board computer, the operating 112 †) is exceeded. The operating safety
safety of the engine is jeopardised. of the engine is jeopardised by this.
Do not pull away, or stop the vehicle as Rthere is a risk of overloading the clutch
soon as possible, paying attention to road Rcrawler mode has reached its operating
and traffic conditions. You could otherwise limits and is automatically cancelled
damage the engine.
Rthe sensor-monitored semitrailer coupling
A warning tone sounds if: is not engaged or the semitrailer is no lon-
Rthe driver's door is opened with the dipped- ger detected
beam headlamps on and the ignition lock in Rthe tyre pressure monitor displays a tyre
radio position pressure loss warning
Rthe driver's door is opened with the side Ryou are driving faster than approximately
lamps switched on and the ignition off 40 km/h with the shunting level activated.
Ryou have not fastened the seat belt on the Rthe instrument cluster and/or the on-board
driver's seat computer is malfunctioning. Important
Rthe immobiliser is activated operating information, maintenance infor-
Ryou do not depress the brake pedal when
mation or indicator and warning lamps can
the hill holder is activated and the vehicle is no longer be displayed
stationary
 Refuelling 305

Refuelling Avoid fire, naked flames, smoking and the

creation of sparks. Make sure that fuels do
Fuel/AdBlue® tank not come into contact with a hot exhaust sys-
tem. Before carrying out work on the fuel sys-
tem, switch off the ignition and the auxiliary
heater. Always wear protective gloves.

G WARNING
If you mix diesel fuel with petrol, the flash
point of this fuel mixture is lower than that of
pure diesel fuel. When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is a risk of fire.

Driving mode
Never refuel with petrol. Never add petrol to
Fuel/AdBlue® tank (example: platform truck) diesel fuel.
: AdBlue® tank
; Fuel tank ! BlueTec®6 vehicles: only refuel using
commercially available, sulphur-free diesel
fuel that conforms to the European stand-
Fuel ard EN 590 as of 2010, et seq. (max.
0.001% sulphur by weight).
Important safety notes
The following fuel types are not permitted:
G WARNING Rsulphurous fuel with a sulphur content
Fuels are poisonous and hazardous to health. greater than 0.001% by volume
There is a danger of injury. Rmarine diesel fuel
Do not swallow fuel or let it come into contact Raviation turbine fuel
with skin, eyes or clothing. Do not inhale fuel Rheating oils
vapours. Keep fuels out of the reach of chil-
Rfatty acid methyl ester FAME (bio-diesel
dren.
fuel)
If you or others come into contact with fuel,
These fuel types cause irreversible damage
observe the following:
to the engine and BlueTec®6 exhaust gas
RWash the fuel off any affected areas of skin aftertreatment, as well as also significantly
with water and soap immediately. reducing the expected service life.
RIf you get fuel in your eyes, rinse them thor-
BlueTec®5 vehicles: only standardised
oughly with clean water immediately. Seek fuels with a maximum sulphur content of
immediate medical attention. 0.05% by weight are permissible. However,
RIf fuel is swallowed, seek immediate medi- Mercedes-Benz only recommends fuel that
cal attention. Do not induce vomiting. complies with the European standard EN
RChange any clothing that has come into 590 as of 2010 (max. 0.001% sulphur by
contact with fuel immediately. weight). The use of fuels above 0.005% sul-
phur by weight significantly reduces the
G WARNING service intervals.
Fuel is highly flammable. When fuel is handled
improperly, there is a risk of fire and explo-
sion.

Z
306 Refuelling

The following fuel types are not permitted: case, twist or tip it before attempting to
Rsulphurous fuel with a sulphur content remove the fuel pump nozzle.
greater than 0.05% by volume You will find further information on fuel in the
Rmarine diesel fuel "Service products" section (Y page 339).
Raviation turbine fuel
Rheating oils
Before filling the tank
Rfatty acid methyl ester FAME (bio-diesel ! If you are using drums or canisters to
fuel) refuel the vehicle, you should filter the fuel
before adding it.
! Do not use petrol to refuel vehicles with a
diesel engine. Even small amounts of petrol This will prevent malfunctions in the fuel
result in damage to the fuel system and system due to contaminated fuel.
engine.
Driving mode

! Do not switch on the ignition if you acci-

dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines. Notify
a qualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Do not add any special fuel additives to
the diesel fuel.
Special fuel additives can lead to:
Fuel tank (example: single tank)
Rmalfunctions
X Switch off the engine.
Rdamage to the catalytic converter
X Apply the parking brake.
Rengine damage
X Switch off the auxiliary heating system
H Environmental note (Y page 133).
If fuels are handled improperly, they pose a X Remove the key from the key slot.
danger to persons and the environment. Do X Unlock cap : on fuel tank ; with the
not allow fuels to run into the sewage system, integrated key.
the surface waters, the ground water or into X Observe the fuel grade (Y page 339).
the ground.
i Regularly check the fuel prefilter with
! Use truck fuel pump nozzles to refuel. If heated water separator for condensation
you use a passenger vehicle fuel pump noz- (Y page 374).
zle, the flap in the filler neck could be dam-
aged.
If you have to use a passenger vehicle fuel AdBlue®
pump nozzle, insert it into the filler neck so
that only one of the pump nozzle lugs rest Important safety notes
on the edge of the filler neck. ! Do not allow diesel fuel to run into the
If a passenger vehicle fuel pump nozzle is AdBlue® tank. This could damage the Blue-
inserted too far, this may result in a lug Tec® exhaust gas aftertreatment.
getting caught on the flap in the filler neck.
To release the fuel pump nozzle in such a
 Refuelling 307

! Only use AdBlue®/DEF in accordance immediately. Consult a doctor without

with DIN 70070/ISO 22241. Do not use delay.
any additives. RIf you have swallowed AdBlue®, immedi-
If AdBlue®/DEF comes into contact with ately rinse your mouth with water and drink
painted or aluminium surfaces when filling plenty of water. Consult a doctor without
the tank, rinse the affected area immedi- delay.
ately with plenty of water. RChange clothing that is soiled with AdBlue®

! Do not mix additives with AdBlue®. Do not immediately.

dilute AdBlue® with tap water. This could AdBlue® is not refilled as part of the mainte-
destroy the BlueTec® exhaust gas after- nance work. Therefore, top up the tank regu-
treatment system. larly during vehicle operation or at the latest
when the first event message is displayed in
! Always close the AdBlue® tank properly. the on-board computer.

Driving mode
Otherwise, impurities could enter the Blue-
You will find further information on AdBlue® in
Tec® exhaust gas aftertreatment and dam- the "Service products" section (Y page 340).
age it.
! Make sure that you do not overfill the Before filling the tank
AdBlue® tank. Otherwise the AdBlue®
tank
could be damaged at very low tempera-
tures.
When opening the AdBlue® tank, small
amounts of ammonia vapours could escape.
Ammonia vapours have a pungent smell and
are particularly irritating to:
Rskin
Rmucous membranes
Reyes
The vapours may cause a burning sensation in AdBlue® tank (example: single tank)
the eyes, nose and throat as well as irritation You can recognise AdBlue® tank ; by blue
of the throat and watering eyes. cap :. If AdBlue® tank ; still contains suf-
Avoid inhaling ammonia vapours. Only fill the ficient AdBlue®, pressure compensation may
AdBlue® tank in well-ventilated areas. result when unscrewing cap :. AdBlue® may
AdBlue® should not come into contact with spill out. For this reason, take care when
skin, eyes or clothing, and should not be swal- unscrewing cap : from AdBlue® tank ;. If
lowed. Keep AdBlue® out of the reach of chil- AdBlue® spills out, immediately wash the
dren. affected area with plenty of water.
If you come into contact with AdBlue®, A special tank filler neck prevents AdBlue®
observe the following: tank ; from mistakenly being filled with die-
sel fuel.
RImmediately wash AdBlue® from your skin
with water and soap. X Switch off the engine.

RIf AdBlue® comes into contact with your X Apply the parking brake.

eyes, rinse your eyes with clean water

Z
308 Trailers/semitrailers

X Switch off the auxiliary heating system Driving tips for trailers/semitrailers
(Y page 133).
X Unlock cap : on AdBlue® tank ; with the
General notes
separate key. ! Always observe the following safety
i Depending on the vehicle's equipment instructions for driving with trailers and
cap : of AdBlue® tank ; can be locked semitrailers:
for security reasons. Ronly attach a trailer/semitrailer at an
Always refuel with at least 10% of the AdBlue® appropriate trailer/semitrailer coupling.
reservoir capacity, as topping up with smaller Rensure there is adequate clearance
amounts could result in malfunctions. between the trailer/semitrailer and the
tractor vehicle.
Rif the vehicle is being driven without a
Trailers/semitrailers load, only a trailer without a load may be
Driving mode

Notes about the trailer/semitrailer coupled up.

coupling Rdo not exceed the permissible axle loads.
Radhere to a minimum front axle load. This
The trailer or semitrailer coupling is one of the
ensures adequate steerability for the
vehicle components with particular impor-
tractor vehicle.
tance for road safety. Please comply precisely
with the manufacturer’s operating, care and Minimum front axle load — tractor vehi-
maintenance instructions. cle:
If you fit a trailer coupling, observe the body/ 25% = three-axle vehicle
equipment mounting directives. 30% = two-axle vehicle (trailer lighter or
If your semitrailer tractor vehicle is equipped as heavy as the tractor vehicle)
with a coupling ramp/coupling aid, the incli- 35% = two-axle vehicle (trailer heavier
nation angle specified in ISO 1726 cannot be than the tractor vehicle)
guaranteed for all semitrailer coupling dimen- i On vehicles with pneumatic suspension
sions. Note that the clearance between the and axle load indicators, the current axle
semitrailer tractor vehicle and the semitrailer loads can be called up on the on-board
may be restricted, and you should adapt your computer (Y page 154).
driving style accordingly. Always remove the
mudguard centre sections before coupling
Articulation angles
up.
If you retrofit a coupling ramp/coupling aid, ! If the articulation angle is exceeded, the
observe the body/equipment mounting tractor vehicle and the trailer/semitrailer
directives. can be damaged.
 Trailers/semitrailers 309

angle at the front ; or the rear :

changes.
i If the articulation angle between the trac-
tor/trailer combination is reduced, the
clearance between the tractor vehicle and
the trailer/semitrailer is reduced.
The articulation angles are dependent on the
particular tractor vehicle and trailer/semi-
trailer and are influenced by:
Rwheelbase
Rheight of add-on equipment
Roverhang

Driving mode
Rdistance from the tractor vehicle to the
trailer/semitrailer

Swivel angle
G WARNING
If the swivel angle is exceeded during extreme
cornering, the following can happen:
Example: tractor vehicle and centre-axle trailer
Rthe cable, compressed-air and hydraulic
lines may break away
Rthe trailer tow hitch and the trailer drawbar
may be damaged
This could cause you to lose control of the
vehicle or the trailer. The trailer may even
break away. There is a risk of an accident.
Always pay attention to the swivel angle of the
vehicle combination when cornering.

Example: tractor vehicle and semitrailer

X When driving over depressions or eleva-
tions, please be aware that the articulation

Z
310 Trailers/semitrailers

Information on semitrailer coupling

Important safety notes
G WARNING
If the semitrailer coupling is damaged or not
correctly engaged, you could lose the semi-
trailer. There is a risk of an accident.
Always check that the semitrailer coupling is
free of damage and properly engaged after
coupling-up.
Example: tractor vehicle and centre-axle trailer
This should also be checked if:
Ryour vehicle is equipped with a sensor-
Driving mode

monitored semitrailer coupling and

Rthe ¤ indicator lamp in the status area
of the on-board computer lights up green
Sensor-monitored semitrailer coupling
! If the red ¤Check semitrailer
coupling and open if required event
window is displayed by the on-board com-
puter when coupling up, you could damage
Example: tractor vehicle and semitrailer the sensor-monitored semitrailer coupling
X Pay attention to swivel angle = during and the semitrailer coupling pin. Check the
extreme cornering. locking mechanism on the sensor-moni-
tored semitrailer coupling.
The swivel angle is dependent on the coupling
system on the tractor vehicle and trailer/ ! Observe the wear limits specified in the
semitrailer. manufacturer's operating instructions for
the:
Rwear ring
Coupling up Rlocking hook
Note on tractor/trailer synchronisation Rsemitrailer coupling pin
(vehicles without EBS) Ensure that the parts do not fall below the
! Tractor/trailer synchronisation should be wear limits. Otherwise, the sensor on the
carried out when you couple up/attach a semitrailer coupling pin can be damaged.
trailer or semitrailer to the tractor vehicle If a red event window appears several times
for the first time. Not doing so could lead to in the on-board computer display when a
increased brake wear. Always have trac- semitrailer is coupled up and the ignition is
tor/trailer synchronisation carried out at a switched on, check the wear limits:
qualified specialist workshop. Ron the semitrailer
Ron the sensor-monitored semitrailer cou-
pling
 Trailers/semitrailers 311

The sensor-monitored semitrailer coupling

has sensors which, during the attaching/
detaching process or once the ignition has
been switched on, perform the following:
Rmonitor the semitrailer, the semitrailer
coupling pin and the clasp
Rdisplay the status of the locking mecha-
nism of the sensor-monitored semitrailer
coupling in the display of the on-board com-
puter
If malfunctions or faults occur during cou- Example: semitrailer coupling
pling/decoupling, the on-board computer For vehicles with a sensor-monitored semi-
displays a red event window (Y page 193). trailer coupling, observe the information on

Driving mode
Indicator lamps in the status area of the on- the attaching/detaching procedures in the
board computer and their meaning: manufacturer's operating instructions.
£ The semitrailer is not coupled up. The Before coupling up:
red sensor-monitored semitrailer cou- X Chock the semitrailer's wheels to prevent it
pling is not engaged.
from rolling away.
¤ The semitrailer is not correctly cou- X Open semitrailer coupling : with lever ;;
red pled up. The sensor-monitored sem-
see the manufacturer's operating instruc-
itrailer coupling is engaged, however
tions.
no semitrailer can be detected.
X Semitrailer tractor vehicles with air sus-
¤ The semitrailer is correctly coupled
pension: raise or lower the chassis frame
green up. Check that the sensor-monitored
(Y page 287) so that the semitrailer plate is
semitrailer coupling is in good condi-
50 mm lower than semitrailer coupling :.
tion and engaged correctly.
X Steel sprung vehicles: use the saddle sup-
î The sensor monitoring of the semi-
ports to set the height of the semitrailer so
red trailer coupling is malfunctioning.
that the semitrailer plate is 50 mm lower
Observe the additional information in
than semitrailer coupling :.
the red event window of the on-board
computer.

Semitrailers
G WARNING
If there is too much play on the tractor/semi-
trailer combination between the semitrailer
coupling pin and the coupling plate, the sem-
itrailer may break away from the coupling
plate. You could lose the semitrailer as a
result. There is a risk of an accident.
Follow the coupling manufacturer's instruc- Only remove mudguard centre parts ? if:
tions. Rthe semitrailer makes the use of mudguard
centre parts ? impossible and
Rthe semitrailer's body covers the wheels

Z
312 Trailers/semitrailers

When using mudguard centre parts ?, Tractor/trailer combination

observe the legal requirements for the
country you are currently in. G WARNING
X Release rubber retainers = of mudguard If the trailer coupling has too much longitudi-
centre parts ? on the left and the right- nal play, the trailer can tear away. You could
hand side of the vehicle. lose the semitrailer as a result. There is a risk
of an accident.
X Remove mudguard centre parts ?.
Check the trailer coupling daily for longitudi-
Coupling up with vehicles with a sensor-moni- nal play by moving the towbar body of the
tored semitrailer coupling: trailer coupling forwards and back firmly.
X Drive slowly under the semitrailer plate. Have any longitudinal play eliminated at a
X Raise the vehicle level or lower the semi- qualified specialist workshop as soon as pos-
trailer until the on-board computer displays sible.
Driving mode

the grey ï Coupling level reached

Longitudinal play cannot be checked at the
event window.
coupling jaw.
X Back up slowly until semitrailer coupling :
locks.
The ¤ indicator lamp in the status area
of the on-board computer lights up green.
X If the on-board computer displays the red
£Driving level below coupling
level event window when reversing, cor-
rect the coupling level again until the on-
board computer displays the grey ï
Coupling level reached event window.
Coupling up vehicles without a sensor-moni-
tored semitrailer coupling: Example: securing knob
X Back up slowly until semitrailer coupling : Before coupling up:
locks. X Apply the parking brake and release the
After coupling up: service brake of the trailer; see the manu-
facturer's operating instructions.
X Stop the vehicle and apply the parking X Chock the trailer's rear wheels to prevent it
brake.
from rolling away.
X Secure semitrailer coupling : against
The unbraked front axle of the trailer must
unauthorised operation and check the lock- remain pivotable.
ing mechanism; see the manufacturer's X Set the towbar supports to the height of the
operating instructions.
trailer coupling; see the manufacturer's
X Retract the saddle supports fully; see the
operating instructions.
manufacturer's operating instructions.
X Connect the cable and compressed-air
Coupling up:
lines (Y page 313). X Back up slowly until the trailer coupling
locks.
 Trailers/semitrailers 313

After coupling up: Cables and compressed-air lines

X Check that the coupling pin on securing Important safety notes
knob : is in the correct position or check
the control pin of the trailer coupling. G WARNING
X Connect the cable and compressed-air If you climb onto or down from the vehicle in
lines (Y page 313). order to connect/disconnect the cables and
compressed-air lines without appropriate
climbing aids, you could:
Uncoupling Rslip and/or fall
! Semitrailer tractor vehicles with air sus- Rdamage components, e.g. the battery
pension: before completely uncoupling, cover, and fall as a result
lower the chassis frame until there is a gap Rburn yourself on hot components
between the semitrailer plate and the sem-

Driving mode
There is a risk of injury.
itrailer coupling. Otherwise, the chassis
Always use secure climbing aids, e.g. a suita-
frame will spring up suddenly when uncou-
ble ladder.
pling. This can cause damage to the chassis
frame and the semitrailer.
G WARNING
X Park the vehicle on a firm and level surface. The cover of the silencer can get very hot
X Apply the parking brake. when driving. You could burn your foot if, for
X Chock the trailer/semitrailer's wheels to example, you step on this cover in order to
secure it against rolling away. connect/disconnect the cables and
X Extend the saddle supports of the semi- compressed-air lines. There is a risk of injury.
trailer; see the manufacturer's operating Never step on the cover of the silencer.
instructions.
X Set the trailer's towbar support to the General notes
height of the trailer coupling; see the man-
ufacturer's operating instructions. When operating additional consumers on
your trailer/semitrailer, make sure that no
X Remove the cable and compressed-air
overloading occurs. If you fit several reversing
lines (Y page 313).
lamps on the trailer/semitrailer for example,
X Open the trailer coupling/semitrailer cou- the reversing lamps may fail as a result of
pling; see the manufacturer's operating overloading.
instructions.
Vehicles with a trailer:
X Drive forwards slowly.
Vehicles with a semitrailer:
X Drive slightly forward until the semitrailer
coupling pin is free.
X Semitrailer tractor vehicle with air suspen-
sion: lower the chassis frame (Y page 287)
until there is a gap between the semitrailer
plate and the semitrailer coupling.
X Drive forwards completely.
X Fit the mudguard centre part.

Z
314 Trailers/semitrailers

Arrangement of connections Connecting cables and compressed-air

lines
! Arrange the cables and compressed-air
lines in such a way that they easily yield to
all movements without tension, kinking or
friction when cornering, etc. Before con-
necting the cable, make sure the voltage
rating of the consumer equipment on the
trailer is correct.
X With dual coupling head: push down and
hold the lever at dual coupling head B.
X With dual coupling head: connect the
compressed-air lines.
Driving mode

X With dual coupling head: swing upwards

and release the lever at dual coupling head
B.
Connections for semitrailer (example: semitrailer X Without dual coupling head: connect brake
tractor vehicle) line coupling head : (yellow).
X Without dual coupling head: connect sup-
ply line coupling head ; (red).
i The shutoff valves in the coupling heads
open automatically when the connection is
made.
X After connecting the compressed-air lines
to the trailer, adjust the brake pressure
regulator (if installed).
X Semitrailer tractor vehicle: connect 24 V
(15‑pin) power supply plug ? to the trailer.
Connections for trailer (example: platform truck)
X Platform truck: connect the power supply
of the trailer to 24 V (15‑pin) socket ?.
i On trailers with a 12 V power supply: use
12 V (13 pin) trailer power socket C.
i Turn signal monitoring is also active when
using LED tail lamps. A system failure is
indicated by the lamps flashing at double
the frequency or by a display message in
the driver information system.
X Semitrailer tractor vehicle: connect
ABS/BS (5‑/7‑pin) connecting cable plug
Example: duomatic coupling, front
= to the trailer.
X Platform truck: attach the connecting cable
from the trailer to ABS/BS (5-/7-pin)
socket =.
 Trailers/semitrailers 315

X Semitrailer tractor vehicles: if the semi- X With dual coupling head: push down and
trailer tractor vehicle is being driven with a hold the lever at dual coupling head B.
semitrailer without ABS, insert the plug of X With dual coupling head: remove the
the connection cable into empty socket A. compressed-air lines.
X Check lighting systems, turn signals and X With dual coupling head: swing upwards
brake lamps on the vehicle and on the and release the lever at dual coupling head
trailer/semitrailer for correct functioning B.
and cleanliness. X Without dual coupling head: disconnect
X Check the operation of the indicator lamps supply line coupling head ; (red).
for the towing vehicle and trailer/semi- The brakes of the trailer/semitrailer will be
trailer turn signals in the instrument clus- applied automatically.
ter. X Without dual coupling head: remove brake
X After pulling away, check that the brake line coupling head : (yellow).

Driving mode
circuit on the trailer/semitrailer is func-
X Semitrailer tractor vehicle: disconnect 24 V
tioning correctly, paying attention to the
road and traffic conditions. (15‑pin) power supply plug ? from the
trailer.
X Platform truck: disconnect the power sup-
Disconnecting cables and compressed-
air lines ply of the trailer at the towing vehicle from
24 V (15-pin) socket ?.
G WARNING i On trailers with a 12 V power supply: dis-
If you remove the coupling heads in the wrong connect the power supply of the trailer at
order, the trailer/semitrailer brake is the towing vehicle from 12 V (13 pin)
released and the trailer/semitrailer may roll socket C.
away. There is a risk of an accident. X Semitrailer tractor vehicle: disconnect
Always detach the coupling heads in the cor- ABS/BS (5‑/7‑pin) connecting cable plug
rect order. = from the trailer.
X Platform truck: disconnect the connecting
! After disconnecting the compressed-air cable from the trailer at the towing vehicle
lines, ensure that the covers of the coupling
from ABS/BS (5-/7-pin) socket =.
heads on the vehicle are closed. If the cov-
X Semitrailer tractor vehicle: when driving
ers are not closed, the coupling heads may
become contaminated, causing a malfunc- the semitrailer tractor vehicle without the
tion. semitrailer, insert the connecting cable into
empty socket A.
! After you have disconnected the cables, X Check the operation and cleanliness of the
make sure you insert the plugs in the sock- lighting system as well as that of the turn
ets. If you do not insert the plugs in the signals and brake lamps.
sockets, water may get into the cable har-
ness and damage the electrical system.
X Apply the parking brake of the tractor vehi- Loading platform approach aid
cle.
X Apply the parking brake of the trailer/semi-
G WARNING
trailer. Observe the manufacturer's oper- The loading platform approach aid cannot
ating instructions. detect persons or moving obstacles. There is
therefore a risk of accident even with the
loading platform approach aid activated.

Z
316 Wind deflector

Make sure that there are no persons or H Environmental note

objects behind the vehicle in the area in which When the wind deflector is adjusted correctly,
you are manoeuvring. the air resistance is lowered. This reduces fuel
consumption.
X To activate: reverse.
If the trailer/semitrailer is equipped with
the loading platform approach aid, the on-
board computer display shows the function
automatically when reversing.
Depending on the loading platform
approach aid, the distance from the trailer/
semitrailer to the detected obstacle is also
displayed, for example 2.30 m.
Driving mode

If the distance to the detected obstacle is

less than approximately 1.80 m, the on-
board computer displays the trailer/semi-
Example: wind deflector adjustment
trailer symbol in red.
If the distance to the detected obstacle is Mercedes-Benz recommends that you have
less than approximately 0.70 m, a warning the wind deflector adjusted at a qualified spe-
tone sounds. cialist workshop.
When adjusting the wind deflector, make sure
that you:
Wind deflector Rdo not exceed the permissible vehicle
height (4 m for international transport)
Setting
Robserve the headroom clearance of under-
G WARNING passes
There are no working surfaces fitted on the Rthe legal requirements for the country you
vehicle for adjusting the wind deflector. If you are currently in
adjust the wind deflector yourself, there is a X Determine which diagram corresponds to
danger of falling. There is a risk of injury. your vehicle.
For this reason, use firm, non-slip working X Measure clearance S between the rear wall
surfaces, e.g. a ladder. You must not stand on and body.
the roof. X Measure height difference H between the
drip rail and body.
G WARNING
X Identify adjustment detent A in the diagram
If you adjust the wind deflector, you could get
with height difference H.
trapped between parts of the wind deflector
or between the wind deflector and the cab. X Unscrew bolts : on the adjustment rails
There is a risk of injury. on both sides of the vehicle.
When adjusting the wind deflector make sure X Using determined adjustment detent A,
that there is adequate clearance. Do not place adjust the adjustment rails on holder ;.
parts of your body between the wind deflector X Screw in bolts :.
and the cab. Have a second person assist you.
 Wind deflector 317

Diagrams

Driving mode
Example: semitrailer tractor vehicle/platform truck, ClassicSpace cab
S = 100 - 700 mm: semitrailer tractor vehicle/platform truck with ClassicSpace cab and an
add-on height of 420, 600 or 765 mm

Example: semitrailer tractor vehicle/platform truck, CompactSpace cab

S = 50 - 700 mm: semitrailer tractor vehicle/platform truck with CompactSpace cab and an
add-on height of 420, 600 or 765 mm
S = 580 - 700 mm: semitrailer tractor vehicle with CompactSpace cab, side air deflector and
an add-on height of 420, 600 or 765 mm

Z
318
Driving mode Wind deflector

Example: semitrailer tractor vehicle/platform truck, StreamSpace cab

S = 50 - 700 mm: semitrailer tractor vehicle/platform truck with StreamSpace cab and an add-
on height of 420 or 600 mm
S = 580 - 700 mm: semitrailer tractor vehicle with StreamSpace cab, side air deflector and an
add-on height of 420 or 600 mm

Example: semitrailer tractor vehicle/platform truck, StreamSpace cab

S = 50 - 700 mm: semitrailer tractor vehicle/platform truck with Stream or BigSpace cab and
an add-on height of 765 mm, total vehicle height up to 4,060 mm
S = 580 - 700 mm: semitrailer tractor vehicle with Stream or BigSpace cab, side air deflector
and an add-on height of 765 mm, total vehicle height up to 4,060 mm
 Wind deflector 319

Driving mode
Example: semitrailer tractor vehicle, StreamSpace cab
S = 580 - 700 mm: semitrailer tractor vehicle with Stream or BigSpace cab, side air deflector
and an add-on height of 765 mm

Example: platform truck, StreamSpace cab

S = 50 - 700 mm: semitrailer tractor vehicle with Stream or BigSpace cab and an add-on height
of 765 mm

Z
320
Driving mode Winter operation

Example: semitrailer tractor vehicle/platform truck, GigaSpace cab

S = 50 - 700 mm: semitrailer tractor vehicle/platform truck with GigaSpace cab and an add-
on height of 765 mm
S = 580 - 700 mm: semitrailer tractor vehicle/platform truck with GigaSpace cab, side air
deflectors and an add-on height of 765 mm

Winter operation
Winter driving
Before the journey
! At very low outside temperatures, make
sure that the engine oil added is of an
appropriate SAE classification. Using
engine oils that are not suitable for very low
outside temperatures may result in engine
damage.
 Winter operation 321

Before the onset of winter, make sure that:

Rthe coolant contains sufficient antifreeze
(Y page 338)
Rthe fuel used is suitable for winter use
(Y page 339)
Rthe oil is changed in good time if single-
grade engine oil is being used
(Y page 336)
Rthe windscreen washer system/headlamp
cleaning system contains sufficient anti-
Side panelling with quick-release fastener (exam- freeze (Y page 351)
ple: Actros semitrailer tractor vehicle)
Rsuitable winter tyres are fitted
In wintry conditions, the law may require

Driving mode
that winter tyres be fitted on the wheels of
the drive axle. Find out which winter tyres
are suitable for your needs. Observe the
legal requirements for the country you are
currently in.
Rsnow chains are carried in the vehicle

Notes on driving
! Vehicles without acceleration skid con-
Side panelling with screws (example: Actros sem-
itrailer tractor vehicle)
trol (ASR): quick changes from slippery to
high grip surfaces whilst the drive wheels
Remove snow and accumulations of ice on are spinning can result in damage to the
both sides of the vehicle between the side differential gear system. For this reason,
panelling and the chassis frame. avoid wheelspin of the drive wheels.
X Completely depress front and rear lev-
Please observe the following instructions on
ers ; on the quick-release fasteners. driving in winter:
or
Rin snow, slush and on icy roads, fit snow
X Unscrew front and rear screws =.
chains to the drive wheels in good time
i Renew the lubricant on the quick-release Radapt your driving style to the wintry road
fasteners from time to time. This ensures conditions
the quick-release fasteners work smoothly.
Rif traction problems occur when driving
X Pull side panelling : out of the holders on with snow chains, deactivate ASR
the clasp and swing them outwards. (Y page 261) or the Stability Control Assist
X Remove snow and ice from between side (Y page 262)
panelling : and the chassis frame.
X Swing side panelling : back and press into
the holders on the clasp.
X Pull front and rear levers ; up completely.
or
X Tighten front and rear screws =.

Z
322 Winter operation

Snow chains ing with snow chains, deactivate ASR

(Y page 261) or Stability Control Assist
Notes on snow chains (Y page 262).
G WARNING
If you drive too fast with snow chains fitted,
Checking the wheel clearance
they may snap. As a result, you could injure ! If the clearance between the snow chain
others and damage the vehicle. There is a risk and steering linkage is less than 25 mm, the
of an accident. snow chain could damage the steering link-
Observe the maximum permissible speed for age. In this case, remove the snow chains
operation with snow chains. again. Have the steering geometry checked
at a qualified specialist workshop.
! Only use snow chains that have been
approved and recommended for Mercedes-
Driving mode

Benz. This will prevent you from causing

damage to the vehicle. If you have ques-
tions, consult a qualified specialist work-
shop.
! Mercedes-Benz recommends that you fit
snow chains to all drive wheels. If your vehi-
cle has permanent all-wheel drive and you
do not fit snow chains to all drive wheels,
activate the inter-axle lock. You could oth-
erwise damage the differential. Example: drag link
X Apply the parking brake.
The law may require that snow chains be
removed as soon as possible once the road is X Fit snow chains in accordance with the fit-
clear of snow. The vehicle's driving and brak- ting instructions of the chain manufacturer.
ing characteristics will be adversely affected X Start the engine.
if you drive on roads that are clear of snow X Turn the steering wheel towards the co-
with snow chains fitted to the vehicle. driver's side to the stop.
Observe the notes of the snow chain manu- With the steering on full lock, there must be
facturer on the maximum permissible speed a clearance of at least 30 mm between the
for operation with snow chains. snow chain and the drag link.
When using the snow chains described here,
observe the legal requirements for the coun-
try you are currently in. Cold climate package
Do not use twin chains on vehicles with roll
Cold-start limits
control. Only fit snow chains on the exterior
wheels. Without optional equipment your vehicle is
Vehicles with electric power steering: if capable of starting at temperatures as low as
you change the mechanical axle stops, e.g. −20 †. When fitted with the optional equip-
when using snow chains, have the electric ment and filled with cold-resistant service
power steering taught-in at a qualified spe- products, your vehicle can be started at tem-
cialist workshop. peratures as low as −30 †.
X Vehicles with ASR/stability control assis- i At temperatures lower than the stated
tant: if traction problems occur when driv- cold-start limits, engine starting may be
 Winter operation 323

impaired despite taking the appropriate Have the vehicle converted to cold-resistant
measures. service products at a qualified specialist
workshop.
Optional equipment Remember to fill the vehicle fuel tank with
The following optional equipment improves winter diesel fuel when it is time to do so.
the starting capability of your vehicle at low i If the vehicle is mainly operated at very
outside temperatures: low temperatures the maintenance inter-
RFuel preheating system vals are reduced.
RCoolant preheater
Coolant preheater
RHeated electronic compressed-air supply
unit The coolant preheater consists of an electri-
RAuxiliary heating cal heating element which is installed in the

Driving mode
engine crankcase. The coolant preheater is
Cold-resistant service products operated at 230 V independently of the vehi-
cle's electrical system.
Assembly Service product (Sheet i You can have the basic wiring for the cool-
No.)2 ant preheater retrofitted at a qualified spe-
Fuel system Winter diesel fuel down to cialist workshop.
−22 †
Note, before attempting a cold start
Engine Engine oil (228.51)
! The fluid in discharged batteries may
SAE 5W 30
freeze at extremely cold temperatures. Do
A000 989 69 01 not rapid-charge cold batteries. Otherwise,
Transmission, Transmission oil (235.11) you could damage the batteries.
transfer case SAE 75W 90 Special measures must be taken before a
A001 989 28 03 cold start if the vehicle has been exposed to
extremely low temperatures.
All-wheel- Hypoid gear oil (235.8) XCharge depleted batteries before starting.
drive front SAE 75W 90
axle, rear i The capacity of the batteries is adversely
A 001 989 27 03 or affected by increasingly cold temperatures.
axles, inter-
A001 989 53 03
axle X Thaw frozen batteries before charging
them.
Steering Hydraulic fluid (345.0)3
A001 989 24 03
Starting the engine
Engine cool- Coolant (325.5)
! If the ignition lock is switched to the drive
ing system Mixing ratio: 50% coolant/ position and you notice a low battery volt-
50% water age or an event window shows the #
symbol, do no start the engine. A starting
attempt could damage the batteries if they
are cold or not fully charged.

2 Mercedes-Benz Specifications for Service Products.

3 The use of the hydraulic fluid is not permitted in vehicles with a steered leading/trailing axle. A list of approved
service products can be found in the Mercedes-Benz Specifications for Service Products.
Z
324 Winter operation

! The lubricity of the engine oil and trans- If the engine does not start:
mission oil may be reduced at very low out- i The starting procedure is automatically
side temperatures. Driving a cold vehicle interrupted:
may result in damage to the drivetrain and
Rafter approximately 60 seconds on vehi-
assemblies.
cles with the OM 936 engine
! If a warning tone sounds and the red event Rafter approximately 40 seconds on vehi-
window with the 5 symbol appears in cles with the OM 470 471 or OM 473
the on-board computer, the operating engine.
safety of the engine is jeopardised.
X Switch the ignition lock to position 0.
Do not pull away, or stop the vehicle as
soon as possible, paying attention to road X Repeat the starting procedure after approx-
and traffic conditions. You could otherwise imately 1 minute.
damage the engine. X After three starting attempts, wait approx-
Driving mode

X Switch off all electrical consumers (e.g. imately 3 minutes before trying again.
radio, blower). X If the supply pressure in the brake system

X At outside temperatures below −20 † and (Y page 159) has fallen below 6 bar, charge
on vehicles with an auxiliary heater (auxili- the compressed-air system (Y page 389).
ary heater for cab and engine, 9 kW): pre- This ensures that the clutch opens when
heat the engine with the auxiliary heater starting the engine in vehicles with auto-
before starting the engine (Y page 133). mated transmission.
X At outside temperatures below −30 † on
vehicles with a coolant preheater: preheat Driving in extremely cold conditions
the engine using the coolant preheater for Observe the following at outside tempera-
at least 90 minutes. tures below −20 †:
X Switch the ignition lock to the drive posi-
RBefore pulling away, check the supply pres-
tion.
sure in the brake system (Y page 159).
X Observe the outside temperature shown in
Do not pull away until there is sufficient
the display (Y page 140) and watch out for
supply pressure.
signs of low on-board voltage, e.g. the vehi-
RBefore pulling away, check that the steer-
cle lights are weak.
ing is sufficiently warm. Only then is the
X Shift into neutral.
operating efficiency of the steering
X Disengage power take-off (Y page 330). ensured.
X Start the engine. Hydraulic steering operation may be
In vehicles with automated transmissions restricted at outside temperatures below
the coupling is opened automatically at −25 †.
temperatures of −5 † or below in order to RShift gear early and avoid high engine
make it easier to start the engine.
speeds.
X Release the Start/Stop button once the
RAvoid putting the engine under excessive
engine has started.
load when pulling away.
The idling speed is controlled automati-
RAvoid running the engine for brief periods.
cally.
RWarm the vehicle up for around 20 minutes
before increasing the load.
 Winter operation 325

RFor technical reasons the engine brake is

only available from an oil temperature of
15 † at level 1.
The full engine braking effect is only avail-
able across the entire engine speed range
from an oil temperature of 60 †.
RThe battery can only be charged at a certain
rate per hour, regardless of the power out-
put of the alternator. The rate of charge is
significantly reduced by low outside tem-
peratures. As a result, the battery may take
much longer to charge in winter.

Driving mode
Parking in extremely cold conditions
If the vehicle is parked at outside tempera-
tures of below −30 †, it cannot be guaran-
teed that the engine will start, even with the
cold climate package. Mercedes-Benz advi-
ses against parking the vehicle outdoors at
outside temperatures of below −30 †.
Observe the following if the vehicle has to be
parked outdoors at extremely low tempera-
tures:
X If necessary, ensure adequate vehicle light-
ing by using external lighting, e.g. warning
lamps.
X Check the fuel level on the fuel gauge
(Y page 139).
X If the fuel level is down to the reserve level,
fill up the fuel tank (Y page 305).
i You may have to bleed the fuel system if
the fuel level is too low for longer periods
(Y page 373).
X If the vehicle is not driven for long periods:
charge the batteries every 2 days.
or
X Remove batteries and store them at a tem-
perature above 0 †.
Observe the additional instructions and
information on batteries (Y page 359).

Z
326
 327

Useful information ............................ 328

Power take-offs ................................. 328
Tipper operation ............................... 333

Working mode
328 Power take-offs

Useful information The display of the on-board computer shows

the activation state of power take-off:
These Operating Instructions describe all the / Power take-off disengaged
models and standard and optional equipment 0 Power take-off engaged
of your vehicle that were available at the time
of going to print. Country-specific differences Vehicles with transmission-driven power
are possible. Bear in mind that your vehicle take-off: if power take-off is engaged, you
may not be equipped with all the functions can select any pulling-away gear or reverse
described. This also applies to safety-relevant gear when stationary. Changes of direction
systems and functions. are only permissible in the selected gear. You
Read the information on qualified specialist may not change gear while driving. On vehi-
workshops (Y page 30). cles with an automated manual transmission,
the transmission changes automatically to
manual drive program M when power take-off
Power take-offs is switched on.
Vehicles with engine-driven power take-
Working mode

Function and notes off, without clutch actuator (N4Y or N4Z):

pulling away is not possible when power take-
G WARNING
off is engaged. You cannot operate power
When using the engine run-on function, the take-off while the vehicle is in motion.
vehicle may start to roll if crawler mode is
Vehicles with engine-driven power take-
activated and the pulling-away gear is
off, with clutch actuator (N4X N4W): if
engaged. There is a risk of an accident.
power take-off is engaged, you can select any
When using the engine run-on function: pulling-away gear or reverse gear when sta-
Rshift the transmission into neutral. tionary. During the journey you can select any
Rapply the parking brake. gear.
If you have to leave the cab to operate power
! Vehicles with a clutch pedal: take-off, you can use the ignition lock's
After declutching, you must wait for 10 sec- engine run-on function (Y page 231). The
onds before engaging or disengaging the engine continues to run and the doors of the
power take-off. In this way you will avoid cab can be locked with the key.
consequential damage. When power take-off is engaged, manual
You can use the power take-off to drive aux- regeneration is interrupted. Manual regener-
iliary equipment, e.g. hydraulic pumps. The ation cannot be started if a power take-off is
engine and power take-off must be operated active.
at a certain engine speed (working speed), i The engine speed may rise and the engine
depending on the conditions of use. noise may change while regeneration is in
The working speed can be changed: process.
Rvia the on-board computer in the driving i If you have to leave the cab to operate
systems menu, window Engine speed power take-off, observe the important
(Y page 332) safety notes on the diesel particle filter
Rusing the F constant engine speed (Y page 300).
switch (Y page 332)
Power take-offs with speed limiter: when
power take-off is engaged, the set working
speed cannot be exceeded.
 Power take-offs 329

Preselecting the working speed Engaging power take-off

General notes General notes
On vehicles with transmission-driven power
take-off it is possible to preselect the working
speed.

Vehicles with Mercedes PowerShift

You can preselect the working speed using
the multifunction lever.
X Turn the direction switch to position i.
Depending on the previously selected split-
ter group, either N1 or N2 is shown in the
display. Power take-off switch (example: transmission-
driven power take-off 1)

Working mode
X To preselect a high working speed: pull
the multifunction lever up briefly. The engine-driven power take-off may only be
The high-speed splitter group is selected engaged 3 times per minute. The engine-
and N2 is shown in the display. driven power take-off must be load-free when
engaging/disengaging. On this, see also the
X To preselect a low working speed: push
body/equipment mounting directive.
the multifunction lever down briefly.
The low-speed splitter group is selected If you want to use a transmission-driven
and N1 is shown in the display. power take-off and an engine-driven power
take-off simultaneously, observe the correct
sequence when engaging/disengaging. First
Vehicles with manual transmission engage the transmission-driven power take-
You can preselect the working speed using off, then the engine-driven power take-off.
the splitter switch. When disengaging, first disengage the
engine-driven power take-off, then the trans-
X To preselect a high working speed: pull
mission-driven power take-off. Make sure the
the splitter switch up. required power take-off output does not
The high-speed splitter group is selected. exceed the maximum engine power for the
X To preselect a low working speed: push given operating point.
the splitter switch down.
The low-speed splitter group is selected. Engaging power take-off
X Stop the vehicle.
X Apply the parking brake.
X Shift into neutral.
X Leave the engine running at idling speed.
X Vehicles with manual transmission:
depress and hold down the clutch pedal.
X Press the upper section of the U switch.
If power take-off is engaged, the 0 acti-
vation status indicator is shown in the dis-

Z
330 Power take-offs

play of the on-board computer. The indica- from automatic regeneration also when
tor lamp in the U switch then lights up. operating the power take-off on the engine
X Vehicles with manual transmission: when or NMV.
the display shows the engaged power take-
off, release the clutch pedal. Disengaging power take-off
i The indicator lamp in the U switch X Leave the engine running at idling speed.
flashes for approximately 1.5 seconds after X Vehicles with manual transmission:
the switch is pressed. Only then is power depress and hold down the clutch pedal.
take-off engaged. If you press the lower
X Press the lower section of the U switch.
section of the U switch during this
When the power take-off is disen-
period, the power take-off will not be
gaged, / appears in the display of the
engaged.
on-board computer and the indicator lamp
You cannot engage power take-off when the goes out in the U switch.
parking brake is released. In this case, the
X Vehicles with manual transmission: when
yellow event window in the on-board com-
the display no longer shows power take-off,
Working mode

puter shows ! and Engage parking

release the clutch pedal.
brake. Apply the parking brake and engage
power take-off again.
Emergency mode (engine-driven power
If the / symbol flashes in the display of
take-off)
the on-board computer, the electronic man-
agement system does not recognise the vehi- G WARNING
cle's current operating state: With the engine running, the output shaft for
X Check the vehicle's operating state: the engine-bound power take-off may turn.
Rthe transmission is in neutral There is a risk of injury.
Rvehicles with manual transmission: the Only operate the emergency gearshift for the
clutch pedal is depressed engine-driven power take-off when the vehi-
Rthe vehicle is stationary cle is stationary, the parking brake applied
and the engine switched off.
Rthe parking brake is applied
X Engage power take-off again.
X If the / symbol flashes in the display of
the on-board computer again, visit a quali-
fied specialist workshop.
i Automatic regeneration causes high
engine speeds in the transmission-moun-
ted power take-off. Operating the power
take-off is not permitted during automatic
regeneration. Automatic regeneration
mode is designed for performance at high
engine speeds, except for power take-off
operation. As a result, the programmable
special module (PSM) does not permit a
gear to be engaged. Please wait for auto-
matic regeneration and activate the trans-
mission-mounted power take-off again.
Note the increased engine speed resulting
 Power take-offs 331

X To engage power take-off manually:

apply the parking brake.
X Shift into neutral.
X Switch off the ignition.
X Take the adapter, wrench, screwdriver and
hammer out of the vehicle tool kit.
X Remove covering cap : with a screwdriver
and a hammer.
X Place the adapter and wrench at position
2 on the shaft.
X Turn the wrench to position 4.
X Remove the wrench and adapter.
X Attach covering cap :.
X Start the engine.

Working mode
X Press the upper section of the S power
take-off switch.
If power take-off is engaged, the 0 acti-
vation status indicator is shown in the dis-
play of the on-board computer. The indica-
tor lamp in the S switch lights up.
X To disengage power take-off manually:
start the engine.
X Shift into neutral.
X Press the lower section of the S switch.
X Apply the parking brake.
X Switch off the ignition.
X Take the adapter, wrench, screwdriver and
hammer out of the vehicle tool kit.
X Remove covering cap : with a screwdriver
and a hammer.
Clutch actuator in vehicles with power take-off
X Place the adapter and wrench at position
N4W or N4X
2 on the shaft.
If the engine-driven power take-off fails, you
X Vehicles with power take-off N4Y or N4Z:
can establish or release a rigid connection of
the power transmission in power take-off. turn the wrench to position 3.
When disengaging manually, make sure or
power take-off is not under load. Shift gear, X If power take-off is automatically engaged
e.g. pump to zero delivery. in advance by the switch in vehicles with
You can recognise vehicles with power take- power take-off N4W or N4X: turn the
off N4W or N4X by the external clutch actua- wrench to position 4.
tor. If there is a cover plate in this position or
then the vehicle is equipped with power take- X If power take-off is manually engaged in
off N4Y or N4Z. advance in vehicles with power take-off

Z
332 Power take-offs

N4W or N4X: turn the wrench to position X Press the 9 button to exit the input win-
3. dow.
X Remove the wrench and adapter. or
X Attach covering cap :. X Wait for approximately 3 seconds.
X Start the engine. The setting is stored automatically.
If power take-off is disengaged, / Deactivating the engine-speed setting
appears in the display of the on-board com-
X Press the Ù button repeatedly until the on-
puter and the indicator lamp in the S
switch goes out. board computer shows the Engine speed
input window.
X Press the u button.

Engine speed setting The engine speed setting is automatically

reset if you drive faster than approximately
20 km/h.
Working mode

Constant engine speed

You can set the idling speed and the working

speed.
To operate auxiliary equipment, e.g. hydraulic
pumps, the engine must be running at a spe-
cific speed (working speed).
X Stop the vehicle.
When the constant engine speed function is
activated, the set working speed for the
X Apply the parking brake.
power take-off is controlled by the electronic
X Shift into neutral. management system, regardless of the load.
X Engage power take-off. X Stop the vehicle.
Activating the engine speed setting and X Apply the parking brake.
setting the engine speed X Shift into neutral.
X Press the Ù button on the multifunction X Engage power take-off.
steering wheel repeatedly until the X To activate: press the upper section of the
Engine speed input window is shown in F switch.
the on-board computer. The indicator lamp in the F switch
X Press the s or r button to increase comes on.
or decrease the engine speed in incre- X To deactivate: press the lower section of
ments of approximately 20 rpm. the F switch.
The indicator lamp in the F switch goes
out.
 Tipper operation 333

Tipper operation the selected gear. You may not change gear
while driving. On vehicles with an automated
Before tipping manual transmission, the transmission
changes automatically when the tipper pump
G WARNING
is switched to manual drive program M.
The rear exterior lighting is concealed when
X Park the vehicle on a firm and level surface.
the tailgate is opened. This could cause other
road users to fail to recognise the vehicle in X Apply the parking brake.
time. There is a risk of an accident. X Check and secure the pins on the tipper
Make sure that the vehicle is safeguarded at body; see the manufacturer's separate
the rear in accordance with national legal operating instructions.
requirements, e.g. with a warning triangle. The tipper body must always be secured
with pins on a side to which the load is to be
! When picking up or setting down a con- tipped. The pins have different shapes to
tainer, the wheels on the front axle must prevent confusion or diagonal insertion.
not be allowed to lift clear of the ground. X Start the engine.

Working mode
Otherwise, the chassis frame can be dam- X Switch on the tipper pump (power take-off)
aged. (Y page 328).
Run the engine when coupling to a semi- The chassis frame is lowered automatically.
trailer or picking up demountable bodies or The display shows the Û symbol for
containers. chassis frames below driving level.
! Observe the maximum gross axle weight X Open the dropside and ensure that the
when tipping, rolling away or setting down dropside unlocks and opens in the case of
demountable bodies or containers. Do not automatic release/locking mechanisms.
exceed the values given in the body/equip- See the tipper manufacturer's separate
ment mounting directive. operating instructions.
The following parts of the vehicle may oth-
erwise be damaged:
Tipping
Rtyres
Rchassis X Make sure that nobody is in the tipping
Raxles
area.
X Observe the operating instructions issued
You will need to complete the connection by the tipper manufacturer.
between the auxiliary subframe and the vehi-
cle chassis in the crane area. This can either
be done with a crane mounting or another
After tipping
adequate mounting. Observe the body/
equipment mounting directive. Tipper opera- X Close the dropside and ensure that the
tion is not permitted if you do not complete dropside closes and locks in the case of
the connection. automatic release/locking mechanisms.
Be sure to follow the safety regulations and
the tipper manufacturer's separate operating
instructions.
When the tipper pump (power take-off) is
engaged, you can select any pulling-away
gear or reverse gear when stationary.
Changes of direction are only permissible in
Z
334 Tipper operation

See the manufacturer's separate operating

instructions.
X Switch off the tipper pump (power take-off)
(Y page 328).
X Raise the chassis frame to driving level
(Y page 286).
The Û symbol for chassis frames below
driving level goes out in the display.
Working mode
 335

Useful information ............................ 336

Service products ............................... 336
Cleaning and care ............................. 342
Maintenance ...................................... 348

Maintenance and care

336 Service products

Useful information Rcoolant

RAdBlue® (BlueTec® exhaust gas aftertreat-
These Operating Instructions describe all the ment reduction agent)
models and standard and optional equipment Approved service products fulfil the highest
of your vehicle that were available at the time quality standards and are documented in the
of going to print. Country-specific differences Mercedes-Benz Specifications for Service
are possible. Bear in mind that your vehicle Products. For this reason, only use approved
may not be equipped with all the functions service products for your vehicle. Information
described. This also applies to safety-relevant about approved service products is available
systems and functions. from any Mercedes-Benz Service Centre.
Read the information on qualified specialist You can recognise service products approved
workshops (Y page 30). by Mercedes-Benz by the following inscrip-
tion on the container:
Maintenance and care

RMB-Freigabe (e.g. MB-Freigabe 228.51)

Service products
or
Important safety notes RMB Approval (e.g. MB Approval 228.51)

G WARNING Other labels and recommendations relating

Service product can be poisonous and haz- to the quality or indicating that the product
ardous to health. There is a risk of injury. meets a certain specification are not neces-
sarily approved by Mercedes-Benz. You can
Observe the instructions on the respective
obtain further information from any
original container when using, storing and dis-
Mercedes-Benz Service Centre.
posing off service products. Always store ser-
vice products in the sealed original container. i You can obtain information about service
Always keep service products out of the reach products that have been tested by
of children. Mercedes-Benz and approved for your vehi-
cle on the Internet at: http://
! Special additives (except approved fuel bevo.mercedes-benz.com/
additives) are neither required nor
approved for use with approved service The specification and availability of lubricants
products. Additives may cause damage to may vary. Some lubricants are no longer avail-
major assemblies. Therefore, do not mix able, especially for older vehicles. Informa-
any additives with service products. You tion is available from any Mercedes-Benz Ser-
are responsible for the results of using fuel vice Centre.
additives.
H Environmental note Engine oils
Dispose of service products in an environ-
Notes on engine oils
mentally-responsible manner.
! Engine oils other than those of the quality
Service products are: specified in this Operator's Manual are not
Rwindscreen washer concentrate permitted.
Rfuels (e.g. diesel) Only use engine oils which correspond to
Rlubricants (e.g. engine oil, transmission oil, Mercedes-Benz Specifications for Service
grease) Products, Sheet No. 228.51 or 228.31.
Rhydraulic fluids
 Service products 337

Engine oils according to Sheet No. 228.51 If the outside temperature is under -20 †,
have a higher quality standard and have a Mercedes-Benz strongly recommends
favourable effect on: using engine oils of SAE class 5W-30 or
Rlength of oil change interval 0W-30.
Rengine wear Use only all-season oils.
Rfuel consumption
Rexhaust emissions

i You can find information on the quality

grade, e.g. Sheet No. 228.51, and the vis-
cosity, e.g. SAE class 5W-30, on the oil
container.
Engine oil according to Sheet No. 228.51 and
SAE class 5W-30 will be filled before delivery.

Maintenance and care

Scope of use
Engine oil SAE classes (viscosity)
Multi-grade engine oils complying with Sheet Oil change intervals are dependent on the fol-
No. 228.51 or 228.31 can be used all year lowing:
round.
Rthe operating conditions of the vehicle
BlueTec®5 vehicles: depending on fuel quality
Rthe grade of the engine oil used
(fuel sulphur content), oil change intervals are
X Select the SAE class of engine oil in accord-
shortened.
ance with outside temperatures.
Oil change The maximum oil change interval can only be
achieved by using engine oils of particularly
! If you mix engine oils with differing oil high quality in accordance with Sheet No.
grades, the change interval for the engine 228.51 of the Mercedes-Benz Specifications
oil is reduced in comparison to mixtures of for Service Products. The on-board computer
engine oil of identical grade. automatically shows the date of the next oil
Therefore, only mix engine oils of differing change.
grade in exceptional circumstances. To
prevent damage to the engine, set the Adding/topping up the engine oil
sheet number of the engine oil with the
lower grade under Engine oil grade. ! There is a risk of damage to the catalytic
converter or to the engine if too much oil is
! If the SAE class (viscosity) of the engine added. Have excess oil drained off.
oil used is not suitable for continually low
outside temperatures below -20 †, this When topping up, Mercedes-Benz recom-
could cause engine damage. mends that you only use engine oil of the
same grade and SAE class as the oil filled at
The specified temperatures of the SAE
the last oil change.
class always refer to freshly added oil.
Engine oil ages during driving due to soot Check the oil level in the on-board computer
and fuel residue. This impairs the charac- (Y page 159) before you top up the oil
teristics of the engine oil, particularly at low (Y page 354).
outside temperatures.

Z
338 Service products

Miscibility of engine oils Transmission oil grade

The benefits of high-quality engine oils are The quality grade (Sheet No.) of the transmis-
diminished if you mix them. sion oil used can be checked and changed in
Engine oils are differentiated according to: the on-board computer (Y page 162).
Rengine oil brand
Rquality grade (Sheet No.) Coolant
RSAE viscosity class
If, in exceptional circumstances, the type of G WARNING
engine oil currently used is not available, If antifreeze comes into contact with hot com-
another engine oil approved for Mercedes- ponents in the engine compartment, it may
Benz may be used. ignite. There is a risk of fire and injury.
Let the engine cool down before you top up
Setting the oil quality the antifreeze. Make sure that antifreeze is
Maintenance and care

not spilled next to the filler neck. Thoroughly

! If the on-board computer shows the 4 clean the antifreeze from components before
symbol and you top up with the quantity of starting the engine.
oil displayed in the on-board computer,
note the following: A coolant that ensures anti-corrosion/anti-
RIf you top up with an engine oil of a lower freeze protection and other important pro-
quality, set the lower quality (Sheet no.) tective effects is filled at the factory.
in the on-board computer. The coolant is a mixture of water and corro-
RIf you top up with an engine oil of a higher sion inhibitor/antifreeze.
quality, do not set the higher quality The corrosion inhibitor/antifreeze in the cool-
(Sheet no.) in the on-board computer. ant has the following properties:
X Set the Sheet No. (quality grade) of the Rheat transfer
engine oil in the on-board computer Ranti-corrosion protection
(Y page 162). Rcavitation protection (protection against
pitting)
Rantifreeze protection
Transmission oils Rraising the boiling point
General notes Leave the coolant in the engine cooling sys-
tem all year round – even in countries with
! When changing the oil, if you replace the high outside temperatures.
synthetic oil with a mineral transmission
oil, you may damage the assembly. Before Check the corrosion inhibitor/antifreeze con-
the oil change, check whether the use of a centration in the coolant every six months.
mineral transmission oil is permitted. Infor- Renew the coolant every 3 years.
mation is available from any Mercedes- Only use approved corrosion inhibitor/anti-
Benz Service Centre. freeze in accordance with Sheet No. 325.5,
At the factory, drive axles, transmission and e.g. Glysantin® G40®. This prevents damage
the PTO shaft gear are filled with a high-qual- to the engine cooling system and engine.
ity synthetic oil. When renewing the coolant, ensure that it
The planetary axles are filled with mineral oil. contains 50% antifreeze/corrosion inhibitor
by volume. This corresponds to antifreeze
protection down to Ò37 †.
 Service products 339

Do not exceed 55% by volume (antifreeze fuel that conforms to the European stand-
down to approximately Ò45 †). The heat dis- ard EN 590 as of 2010, et seq. (max.
sipation and antifreeze may otherwise be 0.001% sulphur by weight).
negatively affected. The following fuel types are not permitted:
If there is a loss of coolant, do not top it up by Rsulphurous fuel with a sulphur content
using only water, also add an approved cor- greater than 0.001% by volume
rosion inhibitor/antifreeze agent.
Rmarine diesel fuel
The water in the coolant must meet certain
Raviation turbine fuel
requirements which are often met by drinking
Rheating oils
water. The water must be treated if its quality
does not meet the required standards. Rfatty acid methyl ester FAME (bio-diesel

Do not mix the water and the antifreeze/anti- fuel)

corrosion additive in the coolant circuit, first These fuel types cause irreversible damage
mix together then fill the coolant expansion to the engine and BlueTec®6 exhaust gas

Maintenance and care

tank with the mixture. aftertreatment, as well as also significantly
Avoid mixing different corrosion inhibitor/ reducing the expected service life.
antifreeze agents. BlueTec®5 vehicles: only standardised
Observe the Mercedes-Benz Specifications fuels with a maximum sulphur content of
for Service Products, Sheet No. 310.1. 0.05% by weight are permissible. However,
Further information about operational and Mercedes-Benz only recommends fuel that
road safety can be obtained from any complies with the European standard EN
Mercedes-Benz Service Centre. 590 as of 2010 (max. 0.001% sulphur by
weight). The use of fuels above 0.005% sul-
phur by weight significantly reduces the
Diesel fuels service intervals.
The following fuel types are not permitted:
Important safety notes
Rsulphurous fuel with a sulphur content
G WARNING greater than 0.05% by volume
Fuel is highly flammable. When fuel is handled Rmarine diesel fuel
improperly, there is a risk of fire and explo- Raviation turbine fuel
sion. Rheating oils
Avoid fire, naked flames, smoking and the Rfatty acid methyl ester FAME (bio-diesel
creation of sparks. Make sure that fuels do fuel)
not come into contact with a hot exhaust sys-
tem. Before carrying out work on the fuel sys- ! A higher fuel sulphur content accelerates
tem, switch off the ignition and the auxiliary the ageing process of the engine oil and can
heater. Always wear protective gloves. damage the engine and exhaust system.

! If you are using drums or canisters to Fuel grade

refuel the vehicle, you should filter the fuel
The fuel sulphur content is set to the following
before adding it.
values before the vehicle is delivered:
This will prevent malfunctions in the fuel
RBlueTec®5 vehicles <0.005% sulphur by
system due to contaminated fuel.
weight (50 ppm)
! BlueTec®6 vehicles: only refuel using RBlueTec®6 vehicles <0.001% sulphur by
commercially available, sulphur-free diesel
weight (10 ppm)

Z
340 Service products

On BlueTec®5 vehicles, set the fuel sulphur The vehicle may be equipped with a fuel pre-
content (Y page 161). heating system. The fuel preheating system
Certain countries have diesel fuel with varying can warm up the fuel by approximately 8 †.
sulphur content. Diesel fuel with low sulphur This improves the flow characteristics of the
content is sold in certain countries under the fuel.
name "Euro diesel".
Information regarding the current country-
specific sulphur content of fuel can be AdBlue®
obtained from any Mercedes-Benz Service AdBlue® notes
Centre or found on Sheet No. 136.2. of the
Mercedes-Benz Specification for Service ! Only use AdBlue®/DEF in accordance
Products. with DIN 70070/ISO 22241. Do not use
any additives.
Diesel fuels at low temperatures If AdBlue®/DEF comes into contact with
Maintenance and care

painted or aluminium surfaces when filling

G WARNING the tank, rinse the affected area immedi-
If you heat fuel system components, e.g. with ately with plenty of water.
a hot-air gun or naked flame, these compo-
nents could be damaged. This can cause fuel If the AdBlue® tank still contains enough
to escape and ignite. Depending on the type AdBlue®, pressure compensation may occur
of damage, fuel may also not escape until the when the tank lid is unscrewed. AdBlue® may
engine is running. There is a risk of fire and spill out. Therefore, open the AdBlue® tank lid
explosion. carefully. If AdBlue® spills out, immediately
Never heat fuel system components. Contact wash the affected area with plenty of water.
a qualified specialist workshop to rectify the AdBlue® is a non-flammable, non-toxic, col-
malfunction. ourless, odourless and water-soluble liquid.
At low outside temperatures, paraffin sepa- When opening the AdBlue® tank, small
ration may cause the flow properties of the amounts of ammonia vapours could escape.
diesel fuel to be insufficient. Ammonia vapours have a pungent smell and
To prevent operating problems, diesel fuel are particularly irritating to:
with improved flow properties is available in Rskin
the winter months. Rmucous membranes
Winter diesel fuels are reliable down to out- Reyes
side temperatures of Ò22 † in Germany and The vapours may cause a burning sensation in
other central European countries. You can the eyes, nose and throat as well as irritation
normally use winter diesel fuel without prob- of the throat and watering eyes.
lems at the outside temperatures expected in
Avoid inhaling ammonia vapours. Only fill the
the country where it is on sale.
AdBlue® tank in well-ventilated areas.
Fuel additives AdBlue® should not come into contact with
skin, eyes or clothing, and should not be swal-
! Do not add any petrol or kerosene to die- lowed. Keep AdBlue® out of the reach of chil-
sel fuel to improve its flow characteristics. dren.
Petrol or kerosene impairs the lubricity of
the diesel fuel. This can cause damage to
the injection system, for example.
 Service products 341

If you come into contact with AdBlue®, Runalloyed steel

observe the following: Rgalvanised steel
RImmediately wash AdBlue® from your skin If AdBlue® is stored in these types of con-
with water and soap. tainer, constituents of these metals may
RIf AdBlue® comes into contact with your dissolve and damage the BlueTec® exhaust
eyes, rinse your eyes with clean water gas aftertreatment beyond repair.
immediately. Consult a doctor without Only use containers made of the following
delay. materials to store AdBlue®:
RIf you have swallowed AdBlue®, immedi-
RCr‑Nisteel in accordance with
ately rinse your mouth with water and drink DIN EN 10 088-1/2/3
plenty of water. Consult a doctor without RMo-Cr‑Ni steel in accordance with
delay.
DIN EN 10 088-1/2/3
RChange clothing that is soiled with AdBlue®
RPolypropylene

Maintenance and care

immediately.
RPolyethylene

High outside temperatures

Disposal
The chemical composition of AdBlue® can
break down if it heats up to 50 † over a long H Environmental note
period of time (e.g. as a result of direct sun- Dispose of AdBlue® in an environmentally
light on the tank). This creates ammonia responsible manner.
vapour.
Observe the legal requirements for the coun-
Low outside temperatures try you are currently in when disposing of
AdBlue®.
AdBlue® freezes at a temperature of approx-
imately Ò11 †. The vehicle's AdBlue® supply Purity
system is fitted with a fully-automatic heating
system. Winter operation is therefore also ! Impurities in AdBlue®, e.g. due to other
ensured for temperatures below Ò11 †. service products, cleaning products or
dust, may lead to:
Additives, tap water Rincreased emission values
Rdamage to the catalytic converter
! Do not mix additives with AdBlue®. Do not
Rengine damage
dilute AdBlue® with tap water. This could
destroy the BlueTec® exhaust gas after- Rmalfunctions in the BlueTec® exhaust
treatment system. gas aftertreatment
Ensure that AdBlue® is always pure to avoid
Storage malfunctions in BlueTec® exhaust gas after-
! Containers made of the following materi- treatment.
als are not suitable for the storage of If AdBlue® is pumped from the AdBlue® tank,
AdBlue®/DEF: e.g. during repairs, do not use this fluid to
Raluminium
refill the tank. Otherwise, the purity of the
fluid would no longer be guaranteed.
Rcopper
Rcopper alloys

Z
342 Cleaning and care

Cleaning and care ! Clean:

Rartificial leather covers with a cloth mois-
Notes on care
tened with a solution containing 1%
H Environmental note detergent, e.g. washing-up liquid.
Only wash your vehicle at a wash bay Rcloth covers with a microfibre cloth mois-
designed for this purpose. Dispose of empty tened with a solution containing 1%
containers and used cleaning products in an detergent, e.g. washing-up liquid. Wipe
environmentally responsible manner. entire seat sections carefully to avoid
leaving visible lines. Leave the seat to dry
Regular care helps to maintain the value of afterwards. Cleaning results depend on
the vehicle. the type of dirt and how long it has been
Mercedes-Benz recommends that you only there.
use care products that have been approved Rgenuine leather covers carefully with a
for Mercedes-Benz. You can obtain these damp cloth, then wipe the covers down
Maintenance and care

care products from any Mercedes-Benz Ser- with a dry cloth. Make sure that the
vice Centre. leather does not become soaked. Other-
If you need to wash upper parts of the vehicle, wise, the leather could become rough or
always use a suitable ladder or another non- cracked. Only use leather care agents
slip climbing aid. that have been tested and approved by
Mercedes-Benz. You can obtain these
from a qualified specialist workshop.
Cleaning the interior Please note that:
Cleaning with a high-pressure cleaner Rleather covers are a natural product and are
therefore subject to a natural ageing proc-
! Observe the following points when wet
ess. Leather can respond differently to cer-
cleaning the vehicle interior:
tain environmental influences (e.g. high
RNever use a high-pressure cleaner. humidity or severe heat); for example, more
RMake sure that no liquids enter or are left strongly defined folds can develop.
in gaps or cavities. Rregular care is required if the look of the
REnsure that there is sufficient ventilation leather covers and their touch and feel are
when cleaning. to be preserved in the long term.
RMake sure that the vehicle interior dries
completely after cleaning. Cleaning the seat belts
! Observe the following notes on cleaning
Cleaning the seat covers the seat belts:
! Microfibre cloths should not be used to Rremove any stains or dirt immediately.
clean covers made from genuine or artifi- This will avoid residue or damage.
cial leather. The microfibre cloth can dam- Rdo not bleach or dye the seat belts. This
age the cover if used frequently. could impair the function of the seat
belts.
Rdo not dry the seat belts in direct sunlight
or at temperatures above 80 †.
Clean the seat belts with a mild washing sol-
ution.
 Cleaning and care 343

Cleaning the mattress cover ! In order to avoid consequential damage,

repair damage caused by loose chippings
The removable mattress cover of the 7-zone
and remove any dirt immediately, in partic-
cold foam mattress can be washed at max.
ular:
30 †.
Rinsect remains
Rbird droppings
Cleaning the vehicle exterior Rflash rust

Notes on cleaning the vehicle exterior Rtree resin

Roils and grease
G WARNING Rfuels
If the windscreen wipers are set in motion
Rtar stains
when cleaning the windscreen or wiper
Rsalt residue
blades, you could become trapped. There is a
Wash your vehicle more frequently if it gets

Maintenance and care

danger of injury.
Always switch off the windscreen wipers and dirty more often.
the ignition before cleaning the windscreen or ! If the vehicle has Mercedes-Benz protec-
wiper blades. tive chassis sealing:
Rdo not use high-pressure cleaners or pul-
G WARNING
sating circular-jet nozzles.
If you use openings in the bodywork or
Ronly clean with a water pressure up to a
detachable parts as steps, you could:
maximum of 3 bar.
Rslip and/or fall Rclean the vehicle with a water tempera-
Rdamage the vehicle and cause yourself to ture up to a maximum of 40 †.
fall. Rkeep a distance of at least 30 cm
There is a danger of injury. between the nozzle and the vehicle.
Always use secure climbing aids, e.g. a suita- Ronly use neutral cleaning agents in the
ble ladder. mixing ratio prescribed by the manufac-
turer and do not use alkaline or acidic
! Do not use parts of the vehicle or open- products.
ings in the bodywork, such as battery com- Rdo not use any petrol-based substances,
partment covers or fuel/AdBlue® tanks, as rape seed oil, diesel, petrol or other sol-
steps. Parts of the vehicle or openings in vents.
the bodywork can otherwise be damaged.
Rwhenever the vehicle is used, remove
! Only direct the compressed-air, steam or corrosive substances with water after-
water jet towards the radiator surface in a ward.
vertical direction. Ensure that the radiator Rbefore and after each use during winter,
fins are not damaged. Remove any dirt from check the anti-corrosion protection, and
the radiator fins. Damaged or dirty radiator touch it up if necessary.
fins can cause the engine to overheat. If
there is a loss of coolant or damage to the When cleaning the vehicle, always use the
cooling and heating system, have it vehicle's steps and grab handles or secure
checked at a qualified specialist workshop. climbing aids, such as a suitable ladder.
Scratches, corrosive deposits, corrosion and
damage caused by neglect or incorrect care
cannot always be completely rectified. In

Z
344 Cleaning and care

such cases, contact a qualified specialist X Tilt folding steps = forwards.

workshop. Use steps ?, = and grab handle : when
cleaning the vehicle. To have better and safer
Steps access to grab handles :, use recesses ;
when ascending.
Important safety notes
G WARNING Small folding step, front
When using folding access steps, ensure that ! If you drive the vehicle with the step fol-
the steps are properly locked in place when ded down, the step can come into contact
folded out. Otherwise, the access steps may with the road surface and be damaged, e.g.
give way when climbing or descending them. when driving off-road.
This may cause you to fall off the steps and Therefore, fold up the step before driving
injure yourself. If the lock on the folding off. Do not drive with the step folded down.
access steps is damaged, have it replaced at a
Maintenance and care

qualified specialist workshop.

Keep steps and grab handles free from dirt,

such as:
Rmud
Rclay
Rsnow
Rice
This increases the safety of your footing.
Steps, front Example: small folding step, front
X To fold down: swing step : down to the
! Ensure that you do not step too low when
using the lowest access steps. Otherwise, stop.
you could damage the protective grid or the X To fold up: swing step : upwards until it
air regulation system. engages.

Large folding step, front

! If you drive the vehicle with the step fol-
ded down, the step can come into contact
with the road surface and be damaged, e.g.
when driving off-road.
Therefore, fold up the step before driving
off. Do not drive with the step folded down.

Example: Actros L cab, steps and grab handles

 Cleaning and care 345

Steps for semitrailer tractor vehicles

Example: large folding step, front

X To fold down: push step ; up a little, pull Steps and grab handle (example: Actros tractor/
out retainer : and swing step ; down to semitrailer combination without side trim panel)

Maintenance and care

the stop.
X To fold up: pull retainer : and swing
step ; upwards until it engages.
X Make sure that retainer : has engaged on
both sides.

Side steps

Steps and grab handle (example: Actros tractor/

semitrailer combination with side trim panel)
X Vehicles with side air deflector: fold side air
deflector = inwards.
Use steps ; and grab handle : when clean-
ing the vehicle.

Example: steps and grab handles on the tipper

: Grab handle
; Steps

Z
346 Cleaning and care

Cleaning the distance sensor If the area of the windscreen used by rain/
light sensor ; and camera : is damaged:
Rthe function of the Lane Keeping Assist/
Attention Assist and of rain/light sensor ;
could be restricted
Rhave the windscreen replaced at a qualified
specialist workshop

High-pressure cleaning
G WARNING
The water jet of circular-jet nozzles (dirt grind-
ers) can cause damage not visible from the
Maintenance and care

outside to tyres or chassis components. Com-

ponents damaged in this way can unexpect-
edly fail. There is a risk of an accident.
Distance sensor (example: Actros) Do not use high-pressure cleaners with circu-
To avoid malfunctions, clean the cover of dis- lar-jet nozzles to clean the vehicle. Have dam-
tance sensor : regularly. aged tyres or chassis components replaced
immediately.
If the distance sensor is dirty, the on-board
computer shows the Ò Distance sen‐
! Never use a high-pressure cleaner in the
sor dirty message in the yellow event win-
vehicle interior. The pressurised water cre-
dow.
ated by the high-pressure cleaner and the
associated spray could cause considerable
Rain/light sensor and Lane Keeping damage to the vehicle.
Assist camera and Attention Assist
! The BlueTec® exhaust gas aftertreatment
system may only be cleaned when it is cool.
The sensors could otherwise be damaged.
When cleaning, make sure not to point the
water jet at the exhaust pipe. Otherwise,
the exhaust gas aftertreatment may be
damaged.
! When using a high-pressure cleaner, keep
a minimum distance of approximately
30 cm between the high pressure nozzle
and the vehicle parts. Do not use a high-
Regularly cleaning the area of the windscreen pressure cleaner with a round jet nozzle.
used by rain/light sensor ; and camera : Parts of the vehicle or engine can otherwise
can prevent malfunctions. be damaged.
! Keep the water jet moving constantly
while cleaning. In this way, you will avoid
causing damage.
 Cleaning and care 347

Do not point the water jet at: Cleaning the engine

Rdoor joints ! Observe the following notes when clean-
Rair bellows ing the engine. This avoids malfunctions
Rbrake hoses and damage to the engine.
Rwheel balance weights RWhen using high-pressure or steam
Relectrical components cleaners, do not point the spray directly
Relectrical connectors at electrical components and electric
Rseals
cables.
RMake sure that no water enters the air
! If your vehicle has Mercedes-Benz pro- intake and ventilation openings.
tective chassis sealing, do not use a high- RTreat the engine with preservative
pressure cleaner. You could otherwise
agents after it has been cleaned. When
damage the protective sealing.
doing so, protect the belt drive system

Maintenance and care

! Avoid deformation of the radiator core from the preservative agent.
fins. This ensures a constant cooling out- ROnly use wax-based protective agents
put. for engines that comply with
Sheet No. 385.4 of the Mercedes-Benz
H Environmental note
Specifications for Service Products.
Only wash your vehicle at a wash bay
designed for this purpose. Dispose of empty ! When using high-pressure or steam clean-
containers and used cleaning products in an ers, do not point the spray directly at radi-
environmentally responsible manner. ator core fins, electrical components or
electric cable ends.
In addition, observe the notes in the "High-
Automatic car wash pressure cleaning" section (Y page 346).
! Before washing the vehicle in an auto-
matic car wash, fold in the exterior mirrors
Cleaning light-alloy wheels
and switch off the windscreen wipers. Oth-
erwise, the exterior mirrors and windscreen ! When cleaning the light-alloy wheels, do
wipers could be damaged. not use any acidic or alkaline cleaning
Make sure that the exterior mirrors are fully agent. They may corrode the wheel nuts or
folded out again when you leave the auto- the locking springs of the wheel balance
matic car wash. weight.
If the vehicle is very dirty, pre-wash it before ! Do not point the water jet of high pressure
you put it through the automatic car wash. or steam cleaners directly at the balance
After the automatic car wash, remove the wax weights of the light-alloy wheel. They may
from the windscreen and the wiper blades. become detached and lead to imbalance
This prevents smearing and reduces wiper and increased tyre wear.
noise, which occur as a result of residue on Clean the light-alloy wheels regularly.
the windscreen. In addition, observe the notes in the "High-
pressure cleaning" section (Y page 346).

Z
348 Maintenance

Maintenance ing these Operating Instructions. Always have

this work and maintenance work carried out
Important safety notes by a qualified specialist workshop.
H Environmental note
If circumstances require you to do some main- MS (maintenance system)
tenance work yourself, you must observe the
environmental protection requirements. Introduction
When disposing of service products, e.g.
The maintenance system calculates mainte-
engine oil, you must comply with the legal
nance due dates for the vehicle and its
requirements. This also concerns all parts,
assemblies based on the vehicle's operating
e.g. filters, that have been in contact with ser-
conditions.
vice products.
You can call up the maintenance due dates
Dispose of empty containers, cleaning cloths
calculated for the vehicle and its assemblies
and care products in an environmentally
Maintenance and care

in the on-board computer (Y page 158).

responsible manner.
The on-board computer first displays the
Observe the instructions for care products.
maintenance due date in the event window
Do not let the engine run longer than neces- automatically 14 days before the respective
sary when stationary. maintenance date.
Like all technical equipment, the vehicle i A qualified specialist workshop can pro-
requires care and maintenance. The scope gram the first message to appear between
and frequency of maintenance work mainly 0 to 30 days before the due date.
depends on the operating conditions, which When the maintenance due date has been
can differ widely. reached or exceeded, the on-board computer
You must secure the vehicle on axle stands of shows additional event windows.
sufficient load-bearing capacity if work is Have work that is carried out by a qualified
being carried out underneath the vehicle. specialist workshop confirmed with entries in
Never use the jack instead of stands. The jack the on-board computer and Maintenance
could slip and the vehicle could drop. the jack Booklet.
is designed only to raise the vehicle for a short
time, e.g. while a wheel is being changed.
Automatic maintenance due date event
When working on the vehicle, comply with all window
safety regulations, such as operating instruc-
tions, regulations concerning hazardous G WARNING
materials, environmental protection meas- If you do not have the prescribed service/
ures, work safety and accident prevention maintenance work or necessary repairs car-
regulations. ried out, this could result in malfunctions or
The enclosed Maintenance Booklet contains system failures. There is a risk of an accident.
information on the scope and frequency of Always have the prescribed service/mainte-
maintenance work and notes on warranty, nance work as well as necessary repairs car-
service products and maintenance work. ried out at a qualified specialist workshop.
A qualified specialist workshop will confirm
the work that has been carried out in the ! Not observing a maintenance due date
Maintenance Booklet. event window and not having maintenance
Inspection and maintenance work requires work performed on time can lead to dam-
special skills that cannot be acquired by read- age to the vehicle or its assemblies. It could
 Maintenance 349

also result in increased wear. Always have X To open: press both release levers ; out-
maintenance work carried out on time and ward in the direction of the arrow.
at a qualified specialist workshop. X Swing maintenance flap : upwards.
If you set the ignition lock to the driving posi- X To close: swing maintenance flap : down
tion and a maintenance date is due or has until it audibly engages.
been exceeded, the on-board computer
shows the dates in the grey event window
(Y page 169). When the maintenance due Maintenance points under the main-
date has been exceeded, the on-board com- tenance flap
puter shows the overdue maintenance in the
yellow event window (Y page 174).
The maintenance system automatically noti-
fies you of maintenance due dates, for exam-
ple:

Maintenance and care

R¯ Air filter, 12.08.2014, 3000 km
Maintenance due dates are displayed
14 days before the respective inspection is
due.
R¯Air filter, Maintenance due
The maintenance is due. Example: maintenance points
R¯Air filter, Maintenance due : Coolant expansion tank with turquoise
immediately cap (Y page 349)
The maintenance due date has been excee- ; Hydraulic clutch actuation system with
ded. green cap (Y page 351)
X To confirm the event window: press the = Engine oil filler neck with black cap
9 button on the multifunction steering (Y page 354)
wheel. ? Washer fluid reservoir with black cap
(Y page 351)

Maintenance flap
Coolant level
G WARNING
The engine cooling system is under pressure,
particularly if the engine is warm. You could
be scalded by hot coolant spraying out when
opening the cap. There is a danger of injury.
Allow the engine to cool before opening the
cap. Wear gloves and protective eyewear
when opening. Slowly turn the cap half a turn
to allow pressure to escape.
Maintenance flap (example: Actros)
G WARNING
Service product can be poisonous and haz-
ardous to health. There is a risk of injury.

Z
350 Maintenance

Observe the instructions on the respective system checked at a qualified specialist work-
original container when using, storing and dis- shop.
posing off service products. Always store ser- If the coolant level in the coolant expansion
vice products in the sealed original container. tank is too low, the on-board computer dis-
Always keep service products out of the reach plays the yellow (Y page 175) or red
of children. (Y page 191) event window with the *
symbol.
! Do not operate the vehicle if the coolant Only open the coolant expansion tank when
level is too low. Otherwise, the engine may the coolant temperature is below 50 †.
be damaged.
The coolant level can only be accurately
determined when the coolant temperature is
between 0 † and 25 †. First check the cool-
ant temperature using the on-board com-
puter (Y page 160).
Maintenance and care

If you need to top up coolant, add corrosion

inhibitor/antifreeze additive as specified in
Sheet No 325.5 to the water, e.g. Glysantin®
G40®. Pay attention to the coolant mixture
ratio and the water quality (Y page 338). Do
not mix the water and the antifreeze/anti-
corrosion additive in the coolant circuit, first
mix together then fill the coolant expansion
tank with the mixture.
X Park the vehicle on a level surface.
X Apply the parking brake.
X Switch off the engine.
X Switch the ignition lock to position 0.
X Vehicles with coolant expansion tank under
the maintenance flap: open the mainte-
nance flap (Y page 349).
Example: coolant expansion tank X Vehicles with coolant expansion tank

The coolant expansion tank may be under the behind the cab: slide cover ? open.
maintenance flap or behind the cab. i For vehicles with the coolant expansion
Vehicles with retarders are equipped with a tank behind the cab, ensure a secure foot-
coolant pressure regulation system. The cool- ing when refilling the coolant.
ant pressure regulation system regulates and X Turn turquoise cap = slowly anti-clock-
monitors the pressure in the engine cooling wise and release the pressure.
system. X Unscrew and remove turquoise cap =.
If the on-board computer shows the yellow X Check coolant level.
Coolant pressure regulation faulty The coolant in the expansion tank must
event window, check the electrical plug con- reach up to the edge of the filler neck.
nectors of plugs : and hose fitting ; for X Top coolant up to the edge of the filler neck.
correct seating. Hose fitting ; and turquoise
X Replace turquoise cap = and tighten it as
cap = must be free from leakage. If you
detect any leakage, have the engine cooling far as it will go.
 Maintenance 351

X Vehicles with coolant expansion tank under Windscreen washer system/head-

the maintenance flap: close the mainte- lamp cleaning system
nance flap.
X Vehicles with coolant expansion tank
Topping up the washer fluid
behind the cab: slide cover ? closed. G WARNING
If windscreen washer concentrate comes into
contact with hot components of the engine or
Clutch actuation system the exhaust system, it can ignite. There is a
! Never top up with a brake fluid or hydrau- risk of fire and injury.
lic fluid of a different quality grade. You Make sure the windscreen washer concen-
could otherwise damage the hydraulic trate does not come into contact with the filler
clutch actuation system. neck.
! The hydraulic system may be leaking if the

Maintenance and care

fluid level in the expansion tank of the
hydraulic clutch actuation system is below
the minimum mark.
Have the hydraulic system checked at a
qualified specialist workshop.

Example: washer fluid reservoir

Depending on the vehicle version, the washer
fluid reservoir for the windscreen washer sys-
tem and the headlamp cleaning system has a
capacity of approximately 10 or 15 litres.
When the washer fluid level in the washer fluid
Example: clutch actuation system reservoir reservoir is too low, the on-board computer
The hydraulic fluid for the clutch actuation displays a grey event window with the ¦
system must meet the specifications in Sheet symbol (Y page 169).
No. 345.0 of the Mercedes-Benz Specifica- Add a washer fluid concentrate according to
tions for Service Products. Mercedes-Benz Specifications for Service
It is not necessary to renew the hydraulic fluid Products Sheet No. 371.0 throughout the
in the hydraulic clutch actuation system. entire year. Adjust the mixing ratio to suit the
X Open the maintenance flap (Y page 349). outside temperature.
X Check the fluid level in the expansion tank. At temperatures above freezing, use a washer
The fluid level must be between maximum concentrate for the summer to prevent
mark : and minimum mark ;. smearing. If there is a risk of frost, use a
washer fluid concentrate for winter to prevent
X Close the maintenance flap.
the water from freezing on the windscreen.
X Mix the washer fluid to the appropriate mix-
ing ratio in a container beforehand.
X Open the maintenance flap (Y page 349).

Z
352 Maintenance

X Twist open black cap : of the washer fluid Coarse filter for heating and climate
reservoir and remove it. control
X Refill the washer fluid reservoir.
! The combination filter and pollen filter
X Replace black cap : and tighten it.
may not be cleaned. They must be
X Close the maintenance flap. replaced.
The combination filter and pollen filter are
marked on the upper side with the letter "C"
Cyclone dust prefilter or "P".
! You may only knock the coarse filter clean
and/or blow it with compressed air.
The coarse filter is clearly marked on the
upper side with the letter "B".
Maintain a distance of at least 20 cm
Maintenance and care

between the air jet and the filter when

blowing with compressed air. Carefully
knock and/or blow the coarse filter clean in
the opposite direction to the airflow. The
direction of the airflow is indicated by
arrows on the upper side of the coarse fil-
ter.
Careless or incorrect cleaning may damage
the coarse filter.

The cyclone dust prefilter is integrated into

the inlet port and increases the operating life
of the air filter in dusty conditions.
Dust particles escape from the inlet port on
extraction valves : to reduce clogging of the
air filter. Dust particles can collect in extrac-
tion valves : and for this reason extraction
valves : must be emptied regularly. If you
regularly drive in dusty areas, empty the valve
at least once per week and in the case of air
with high concentrations of dust, once a day. X Open the maintenance flap.
Also check extraction valves : regularly for X Slide catch ; on air intake slot : in the
damage. Have damaged extraction valves : direction of %.
replaced immediately at a qualified specialist X Remove air intake slot :.
workshop. X Pull the coarse filter from the slot.
X Stop the vehicle. X Knock or blow the coarse filter clean.
X Apply the parking brake. X Slide the coarse filter into the slot. Take
X Switch off the engine. note of the airflow direction indicated by
X Hold the vessel under extraction valve :. arrows on the upper side. The arrows must
X Press extraction valves : together. point downwards.
 Maintenance 353

X Attach air intake slot :.

X Slide catch ; on air intake slot : in the
direction of &.

Replacing the wiper blades

G WARNING
If you use the steps and grab handles at the
front of the cab when replacing the wiper
blades, you could slip and/or fall. There is a
risk of injury. Do not remove the pipe jet from the wiper
When replacing the wiper blades, always use blade. Always replace the wiper blades
secure climbing aids, e.g. a suitable ladder. together with the pipe jets.

Maintenance and care

X Apply the parking brake.
G WARNING X Shift the transmission to neutral position
If the windscreen wipers begin to move while N.
you are changing the wiper blades, you can be X Switch off the engine.
trapped by the wiper arm. There is a risk of X Remove the key from the key slot.
injury.
X To remove the wiper blade: fold wiper
Always switch off the windscreen wipers and arm = away from the windscreen.
ignition before changing the wiper blades.
X Remove hose ; from the pipe jet.

! Only touch the wiper blade on the wiper X Set wiper blade : at a right angle to the
arm. Otherwise, you could damage the wiper arm.
wiper blade.
! Do not open the maintenance flap when a
wiper arm is folded away from the wind-
screen. Otherwise, you could damage the
maintenance flap.
Do not fold the wiper arms back onto the
windscreen without wiper blades fitted.
Otherwise, you could damage the wind-
screen.
Wiper blades are wear parts. Replace wiper
blades once a year. Otherwise, the wind- X Press locking springs A together and push
screen and rear window will not be wiped wiper blade : out of the curvature of wiper
properly. arm = in the direction of arrow ?.
X Remove wiper blade :.

Z
354 Maintenance

X To fit a wiper blade: slide the hinge piece Example: cap

of the wiper blade into the bend of wiper Do not add the topping-up quantity shown in
arm = in the direction of arrow B. the on-board computer until the menu win-
Maintenance and care

X Press the wiper blade into the curvature on dow shows the 4 symbol.
wiper arm = until the locking springs You will find information about engine oils in
engage audibly. the "Service products" section (Y page 336).
X Turn wiper blade : parallel to wiper arm X Park the vehicle on a level surface.
=. X Apply the parking brake.
X Slide hose ; onto the pipe jet. X Switch off the engine.
Ensure that hose ; is firmly fitted onto the X Open the maintenance flap (Y page 349).
pipe jet.
X Unscrew and remove black cap :.
X Fold wiper arm = onto the windscreen
X Top up the oil as shown in the on-board
again.
computer.
X Replace black cap : and screw it on.

Engine oil level X Close the maintenance flap.

Checking the engine oil level

Check the engine oil level before the start of Vehicle assemblies
every journey.
H Environmental note
X Check the oil level using the on-board com-
Improper handling of service products is haz-
puter (Y page 159). ardous to the environment.
X Top up the oil as shown in the on-board
Do not allow service products to enter the
computer. sewage system, surface waters, ground water
or soil.
Topping up the engine oil
Check the vehicle assemblies for leaks regu-
! Only use oils which have been approved larly. If fluid loss is identified, e.g. through oil
for the vehicle and with the prescribed SAE drops on the parking area, have the cause of
classification. the fluid loss rectified at a qualified specialist
Do not add too much oil. If you add too workshop.
much oil, the engine or the exhaust system
could be damaged. Have excess oil
siphoned off.
 Maintenance 355

Checking the anti-corrosion protec- If you come into contact with battery acid,
tion observe the following:
! Road salt has a corrosive effect. In winter, RRinse battery acid off the affected areas of
wash the vehicle more frequently in order skin immediately and seek medical atten-
to remove salt residue. Salt residues can tion without delay.
otherwise damage the anti-corrosion pro- RIf battery acid comes into contact with your
tection. eyes, rinse them out thoroughly with clean
The vehicle can be provided with Mercedes- water immediately. Seek medical attention
Benz protective chassis sealing. The without delay.
Mercedes-Benz protective chassis sealing is
a transparent anti-corrosion wax with out- H Environmental note
standing protective qualities. Batteries contain pollutants.
On vehicles without Mercedes-Benz protec- It is illegal to dispose of them

Maintenance and care

tive chassis sealing, the cab is provided with with the household rubbish.
body cavity protection and underbody pro- They must be collected sep-
tection. arately and disposed of in an
environmentally responsible
X Check the vehicle regularly for corrosion
recycling system.
damage, particularly the compressed-air
Dispose of batteries in an
and hydraulic lines.
environmentally responsible
X Have any damage to the factory-fitted anti-
manner. Take discharged
corrosion protection rectified at a qualified batteries to a qualified spe-
specialist workshop. cialist workshop or to a col-
X Vehicles without Mercedes-Benz protec- lection point for used batter-
tive chassis sealing: as a precautionary ies.
measure, spray the underside of the vehicle
with a wax-based underbody protective Observe the safety notes and protective
agent according to Sheet No. 385.1 of the measures when handling the battery.
Mercedes-Benz Specification for Service
Products. Risk of explosion. Explosive oxy-
hydrogen is produced when bat-
teries are being charged. Only
charge the batteries in a well-ven-
Batteries
tilated area.
Important safety notes Risk of explosion. Avoid creating
sparks. Avoid fire, naked flames
G WARNING and do not smoke when handling
Battery acid is caustic. There is a risk of injury. the battery.
Avoid contact with the skin, eyes or clothing. Battery acid is caustic. Wear acid-
Do not inhale battery vapours. When carrying resistant protective gloves.
out maintenance work on the battery, wear Splashes of acid on skin or cloth-
acid-resistant protective clothing, in particu- ing should be neutralised immedi-
lar eye protection, protective gloves and an ately using soapy water or acid
apron. Do not lean over the battery. Keep bat- neutraliser and then rinsed with
teries out of the reach of children. water.

Z
356 Maintenance

Wear eye protection. When mixing Arrangement of the batteries

water and acid, the liquid may The location of the batteries may vary
splash into your eyes. Rinse out depending on the vehicle version. The batter-
any acid that splashes into eyes ies may be fitted one beside the other or one
immediately using clean water on top of the other in the rear area between
and seek medical attention at the longitudinal members of the chassis
once. frame or on the side on the chassis frame.
Keep out of the reach of children.
Children are not able to evaluate
the risk involved in handling bat-
teries and acid.
Always observe the safety instruc-
tions, protective measures and
procedures specified in these
Maintenance and care

Operating Instructions when han-

dling the battery.
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have
Examples: batteries in the chassis frame
been tested and approved for your vehicle by
Mercedes-Benz.

Battery compartment
Cover

Example: batteries on the side on chassis frame,

one beside the other

Battery compartment cover (example: tractor/

semitrailer combination)
X To remove: open catch ; and remove
battery compartment cover : upward.
X To replace: replace battery compartment
cover :.
Attach catch ; and close.
Example: batteries on the side on chassis frame,
one above the other
 Maintenance 357

Disconnecting and connecting the bat- Connecting

teries X Connect the negative terminal clamp first,
G WARNING and then connect the positive terminal
clamp.
During the charging process, a battery produ-
Do not interchange the battery terminals.
ces hydrogen gas. If a short circuit occurs or
X Replace the battery compartment cover.
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion. Carry out the following tasks after an inter-
RMake sure that the positive terminal of a ruption of the power supply or after recon-
connected battery does not come into con- necting the batteries:
tact with vehicle parts. X Reset the side window (Y page 72) and the
RNever place metal objects or tools on a bat- sliding sunroof (Y page 74).
tery. X Deactivate anti-theft protection on the
RIt is important that you observe the descri- audio equipment (radio). See the separate

Maintenance and care

bed order of the battery terminals when operating instructions.
connecting and disconnecting a battery. X Set the local time on the tachograph.
RWhen jump-starting, make sure that the X Set the switch-on time for the auxiliary
battery poles with identical polarity are heating system (Y page 133).
connected.
RIt is particularly important to observe the
Removing/fitting batteries
described order when connecting and dis-
connecting the jump leads. Important safety notes
RNever connect or disconnect the battery ! Tighten the bolts of the battery support
terminals while the engine is running. frame to a tightening torque of 20 Nm. Do
not use an impact wrench. You could oth-
! The negative terminal clamp is integrated erwise damage the threads.
into the battery sensor. Secure the nega-
tive terminal clamp to a tightening torque of ! The negative terminal clamp is integrated
7 Nm. into the battery sensor. Secure the nega-
tive terminal clamp to a tightening torque of
Observe the safety notes on handling batter-
7 Nm.
ies.
Before disconnecting and connecting the bat- Observe the safety notes on handling batter-
teries: ies.
X Tractor/semitrailer combination with bat-
teries at the rear area: detach the semi-
trailer (Y page 313).
X Remove the key from the key slot.
X Switch off all electrical consumers.

Disconnecting
X Remove the battery compartment cover.
X Disconnect the negative terminal clamp
first, and then disconnect the positive ter-
minal clamp.

Z
358 Maintenance

Batteries fitted one above the other X Screw screws : into the lower battery
carrier.
X Insert the upper battery carrier.
X Place the battery on the upper battery car-
rier.
X Position upper securing frame = and
screw in screws ;.
X Insert the upper battery carrier.
X Screw in screws : to the upper battery
carrier.
X Connect the connecting cables between
Example (platform truck): batteries mounted on the batteries.
the side of the chassis, one above the other X Connect the negative terminal clamp first,
Maintenance and care

Removing and then connect the positive terminal

X Remove the battery compartment cover. clamp.
X Replace the battery compartment cover.
X Disconnect the negative terminal clamp
first, and then disconnect the positive ter- Batteries fitted one beside the other
minal clamp.
X Detach the connecting cables between the
batteries.
X Unfasten screws : from the upper battery
carrier.
X Pull out the upper battery carrier.
X Unfasten screw ; from upper securing
frame =.
X Remove securing frame =.
X Pull out the upper battery and the upper
battery carrier.
Example (tractor/semitrailer combination): batter-
X Unfasten screws : from the lower battery ies in chassis frame, one beside the other
carrier. Removing
X Pull out the lower battery carrier.
X Remove the battery compartment cover.
X Unfasten screw ; from lower securing
X Disconnect the negative terminal clamp
frame =.
first, and then disconnect the positive ter-
X Remove lower securing frame =.
minal clamp.
X Remove the lower battery and the lower
X Detach the connecting cables between the
battery carrier.
batteries.
Fitting X Unscrew screws : from brackets ;.
X Insert the lower battery carrier. X Remove both brackets ;.
X Set the battery on the lower battery carrier. X Remove the batteries.
X Position lower securing frame = and Fitting
screw in screws ;.
X Insert the batteries.
X Insert the lower battery carrier.
X Insert both brackets ;.
 Maintenance 359

X Screw screws : into brackets ;. weekend, there will be a total fuel con-
X Connect the connecting cables between sumption of approximately 60 Ah.
the batteries. RTo ensure the ability to start the vehicle,
X Connect the negative terminal clamp first, observe the notes and instructions in the
and then connect the positive terminal following event windows:
clamp. - Consumer shutoff active
X Replace the battery compartment cover. - Battery charge level low
- Battery charge level too low
Maintenance and care Start engine.

General notes Long idle times/parking up the vehicle

and storage
In this section you will find notes and infor-
mation about the batteries. This means you ! Disconnect the negative terminal of the
can ensure that the batteries are charged and battery when the vehicle is to be idle for

Maintenance and care

ready for use. longer than 1 week. This prevents the bat-
tery from being discharged or damaged.
Battery capacity and power
RBattery capacity is limited and operating
! For idle times of longer than 1 month,
remove the battery and store it in a dry
time depends on the number of electrical
place at temperatures between 0 † and
consumers that are switched on and the
30 †. Maintain a constant battery voltage
duration used.
of 12.6 V. If the battery voltage falls below
RThe applicable nominal capacity of the bat-
12.1 V, the battery is damaged and must be
tery may be lower than the actual battery replaced.
capacity. Battery capacity depends on:
Charge the battery when the no-load voltage
- the age of the battery
is under 12.6 V. This ensures that the vehicle
- the outside temperature
can always be started.
- the engine speed
If you park up your vehicle for longer than
RRegardless of the power of the alternator, 3 weeks, observe the notes on parking up
the battery can only be charged a certain your vehicle (Y page 361).
amount per hour. The level of charge is When storing the battery, comply with all
reduced significantly at low outside tem- safety regulations, such as operating instruc-
peratures. This means that charging the tions, regulations concerning hazardous
battery in winter may take significantly lon- materials, environmental protection meas-
ger. ures, work safety and accident prevention
RPlease note, the alternator cannot fully regulations.
charge the batteries.
RIf the battery is used a lot when the car is
Replacing the battery and operating life
stationary, e.g. living in the vehicle includ- ! Do not connect any electrical consumers
ing overnight stops, recharging the battery directly to the battery terminals. This leads
may be required after several days. to uncontrolled discharge of the battery
Example: and erroneous sensing of charge require-
ments by the battery sensor. Current drain
If the coolbox consumes approximately 1 A
in one battery results in damage being
in one hour and remains engaged over a
caused to both batteries.

Z
360 Maintenance

Avoid the battery becoming fully discharged. Allow the frozen battery to thaw out before
As this can significantly reduce the operating charging it or jump-starting.
life of the battery.
Long battery service life can be achieved by ! Use a commercially-available battery
keeping the batteries adequately charged. charger to charge the batteries. Make sure
Mercedes-Benz recommends the following that the charging voltage is correct. Do not
when replacing the batteries: charge new batteries with rapid charging.
The charge current of used batteries should
Ralways replace both batteries be maximum 75 % of the battery capacity
Ruse the same type of battery for rapid charging. Otherwise, you could
If you use another type of battery, have the damage the batteries.
battery type set with a diagnostic tester by
! The charge current should not exceed
a qualified specialist workshop.
10% of the battery capacity. A higher
Ruse batteries of the same age
charge current can damage the batteries.
Maintenance and care

Do not combine old and new batteries.

Charge the batteries when the outside tem-
Checking the battery charge level perature is over 0 †. The optimal outside
If the vehicle is used often or predominantly temperature is between 10 † and 25 †.
over short distances or is parked for a long X Remove the batteries.
period, check the battery charge level more X Unscrew the battery cell caps.
often. X Check the battery fluid level.
X Disconnect the batteries. X Charge the batteries separately.
X Wait for approximately 8 seconds. X Connect and switch on the battery charger.
X Measure the no-load voltage of the battery. See the battery charger's operating
X If the no-load voltage of the battery is over instructions.
12.6 V, reconnect the battery. X If the batteries are charged, deactivate the
X If the no-load voltage of the battery is under battery charger and screw the plug into the
12.6 V, charge the battery separately. batteries.
X Fit the batteries
Charging the batteries
i After charging/replacing the batteries,
G WARNING the battery charge level calculated may not
During charging and jump-starting, explosive be correct. It takes approximately 3 days
gases can escape from the battery. There is a while the vehicle is in operation for the
risk of an explosion. teach-in process to be completed.
Particularly avoid fire, naked flames, creating The following event window displays are
sparks and smoking. Ensure there is sufficient only correct once the teach-in process has
ventilation while charging and jump-starting. been completed:
Do not lean over a battery. RConsumer shutoff active
RBattery charge level low
G WARNING
RBattery charge level too low
A discharged battery can freeze at tempera-
Start engine.
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases
can escape from the battery. There is a risk of
an explosion.
 Maintenance 361

Checking the battery fluid level ! Do not use any cleaning agents contain-
! Tap water reduces the electrical power ing fuel. Cleaning agents containing fuel
output of the batteries. Add only distilled or corrode the battery housing.
de-ionised water. ! If dirt enters the battery cell, self-dis-
Do not use a metal funnel when adding dis- charging of the battery is increased and the
tilled water. The metal funnel may cause a battery may be damaged.
short circuit and the batteries may be dam-
Observe the following on battery care:
aged.
X Always keep the terminal clamps and bat-
tery surfaces clean and dry.
X Lightly grease the undersides of the battery
terminal clamps with acid-resistant grease.
X Only clean the batteries with the cell caps
screwed in.

Maintenance and care

Otherwise, dirt can enter the battery cells.
X Only clean the battery housing with com-
mercially available cleaning agents.

Example (tractor/semitrailer combination): batter-

ies in chassis frame, one beside the other
Parking up the vehicle
Observe the safety notes on handling batter- When parking up the vehicle, special meas-
ies. ures according to Mercedes-Benz Specifica-
tions for Service Products Sheet No. 382.0
X Check the battery fluid level as regularly as
need to be taken. More information can be
required by the vehicle operating condi-
obtained from any Mercedes-Benz Service
tions, and at least once a year.
Centre.
X Remove the battery compartment cover.
X Vehicles with batteries fitted one above the
other: remove the batteries.
X Unscrew cell caps ;.
X Check the battery fluid level.
The battery fluid must reach marker bar :
in each battery cell.
X Top up with distilled/de-ionised water.
X Refit cell caps ;.
X Vehicles with batteries fitted one above the
other: fit the batteries.
X Replace the battery compartment cover.

Battery care
! Dirty battery terminals and battery surfa-
ces cause creepage current. This can cause
the batteries to discharge.

Z
362
 363

Useful information ............................ 364

Telediagnosis .................................... 364
Where will I find...? ........................... 364
Cab ..................................................... 368
Engine ................................................ 372
Flat tyre ............................................. 377
Electrical fuses ................................. 383
Charging the compressed-air sys-
tem ..................................................... 389
Jump-starting, tow-starting and
towing away ...................................... 389

Breakdown assistance
364 Where will I find...?

Useful information Where will I find...?

These Operating Instructions describe all the Tool kit compartment

models and standard and optional equipment
of your vehicle that were available at the time
of going to print. Country-specific differences
are possible. Bear in mind that your vehicle
may not be equipped with all the functions
described. This also applies to safety-relevant
systems and functions.
Read the information on qualified specialist
workshops (Y page 30).

Telediagnosis Tool kit compartment (example: L cab)

The tool kit compartment is at the side of the
Breakdown assistance

With telediagnosis, you can provide cab above the wheel arch and only accessible
Mercedes-Benz Service 24h with detailed from the outside.
technical information on your vehicle in the Opening the tool kit compartment
event of a breakdown. This allows Mercedes-
X Press release catch : on the outside in the
Benz Service 24h to isolate the malfunction
and quickly provide you with assistance. recess.
Exterior flap ; opens until stopped by the
You can use telediagnosis if you have activa-
retaining hook.
ted FleetBoard® and have a completed frame-
X Press release catch : again on the outside
work agreement with the "Uptime" service.
in the recess.
The following data is transmitted to Exterior flap ; is fully unlocked. The tool
Mercedes-Benz Service 24h: kit compartment lighting comes on auto-
Rdata necessary for identification of the matically.
vehicle (e.g. vehicle identification number/ X Swing exterior flap ; up fully using the
VIN) recess on the right-hand side.
Rcontrol unit diagnosis data (e.g. malfunc- The prop rods engage.
tion message memory) Closing the tool kit compartment
Rcurrent data on the vehicle position
X Raise exterior flap ; a small amount by the
Rthe current total distance
recess.
No data related to the driver, the route or the X Push up the prop rod.
load are transmitted.
X Swing exterior flap ; down by the recess
If you press the FleetBoard® TiiRec Service on the right-hand side until you hear it
Call button for approximately 2 seconds, tel- engage in the lock.
ediagnosis is activated (Y page 205). The tool kit compartment lighting goes out
i If you activate telediagnosis and do not automatically.
notify Mercedes-Benz Service 24h, the
data is deleted after 72 hours.
 Where will I find...? 365

Vehicle tool kit and emergency equip-

ment
Important safety notes
When working on the vehicle, comply with all
safety regulations, such as the operating
instructions, regulations concerning hazard-
ous materials, environmental protection
measures, work safety and accident preven-
tion regulations.

Breakdown assistance
366 Where will I find...?

Overview

Stowage compartments and tool kit compartment (Example: tractor/semitrailer combination with L cab)
The vehicle tools and emergency equipment are divided into two packages:

d e
Breakdown assistance

RSpare bulbs RTowing eye

RFireextinguisher RSpare wheel spacer
RTyre pressure gauge RVehicle tool kit
RTyre inflater hose RHand crank
RSupport block RLamps with 10 m cable
RSecond warning triangle RAssembly lever
RPump lever
RJack

Allocation of vehicle tools and emergency equipment for L and M cabs:

: ; =
L cab with tool kit compartment e d
L cab with tool kit compartment and SoloStar Concept e d
L cab without tool kit compartment and with SoloStar d/e
Concept
L cab without tool kit compartment d/e
M cab d e

Vehicles with ADR classification: the fire extinguisher is located in stowage compartment ;
on the driver's side. Open the stowage compartment (Y page 117).
 Where will I find...? 367

On vehicles with 2 fire extinguishers, the second fire extinguisher may be in the following
storage locations, depending on the vehicle version:
Rin stowage compartment : on the co-driver's side
Rin tool kit compartment = (Y page 364)
Rin a protective box on the exterior of the cab rear wall on the driver's side
On L cab as car transporter: with lowered berth or seat/berth combination, the fire extin-
guisher and jack are behind the driver's seat. You are responsible for stowing the tools your-
self.
On the S cab, the jack is on the B-pillar behind the co-driver; the vehicle tool kit is behind the
driver. For all vehicles except those on the French market, the fire extinguisher is on the engine
tunnel on the rear wall. For vehicles on the French market, the fire extinguisher is on the A-pillar
on the co-driver's side. You are responsible for stowing the tools yourself.
The following emergency equipment is found in the stowage space in the driver's door:
Rfirst-aidkit
Rwarning triangle

Breakdown assistance
Rwarning beacon
Rreflective safety vest

Pump lever (2-part) Use the pump lever to operate:

Rthe jack
G WARNING
Rthe wheel wrench
If you do not assemble the pump lever as
described, the handle can slip out of the guide Rthe spare wheel winch
while pumping. There is a risk of injury. Rthe cab tilt pump
Make sure that the locking pin of the pump X To assemble the pump lever: align and
lever is engaged in the hole intended for the insert retaining pin = into hole A of both
purpose. pump lever parts.
X Press retaining pin = into hole A until it
engages.
X To disassemble the pump lever: press
locking pin = and pull apart the pump
lever.

: Recess (jack)
; Jacking point (wheel wrench/cab tilt
pump)
= Retaining pin
? Recess (for operating the winch and jack)
A Hole for retaining pin
B Retaining sleeve for inserting the hand
crank (spare wheel hoist)

Z
368 Cab

Wheel chock

Tilting area of the cab (example: Actros)

Example: tractor/semitrailer combination, wheel Before tilting the cab, carry out the following
chock steps:
Depending on the vehicle version and equip- X For safety reasons, keep the area in front of
ment, the storage location of the wheel the cab unobstructed.
Breakdown assistance

chocks may vary. X Apply the parking brake.

Removing the wheel chock X Shift into neutral.

X Pull the elastic strap over retainer ;. X For air-sprung cabs: allow the engine to

X Press and hold retainer ; in the direction continue running until the compressed-air
of the arrow. system is filled to the maximum and the
compressor switches off.
X Pull out wheel chock :.
X Switch off the engine.
X Release retainer ;.
X To start the engine after tilting the cab, turn
Inserting the wheel chock the key in the ignition to the drive position.
X Press and hold retainer ; in the direction X Switch off the auxiliary heating system
of the arrow. (Y page 133).
X Insert wheel chock : into the bracket. X Switch off the auxiliary air conditioning
X Release retainer ;. (Y page 131).
X Pull the elastic strap over and beyond X Switch off the coolbox (Y page 117).
retainer ; and onto wheel chock :. i Observe the separate operating instruc-
tions of the coolbox. You may switch the
coolbox on again 10 minutes after tilting
Cab back the cab.
X Remove all loose objects from the cab, for
Before tilting the cab
example:
G WARNING Rdrink cans
When the cab is being tilted, it could suddenly Rbottles
fall forwards to its end position or out-of-use Rtools
position. There is a risk of injury for persons in
Rbags
the tipping range of the cab.
X Close the stowage compartments on the
Only tilt the cab when there are no persons
inside (Y page 115) and the tool kit com-
within the tilting range. Do not approach the
partment on the outside (Y page 364).
area underneath the cab unless it has been
X Close the doors.
tilted fully forwards.
 Cab 369

i If you need to open a door when the cab is X If there is noticeable resistance when you
open, do so carefully and slowly until the operate the pump lever, check that tilting
door is fully open. position 2 has been set correctly on the
X Make sure the coupling pin of the front valve lever on the tilting pump.
coupling jaw is secure and that the coupling X If there is no noticeable resistance when

jaw is covered (Y page 393). you operate the pump lever, have the tilting
X Use chocks to safeguard the vehicle
hydraulics checked at a qualified specialist
against rolling away. workshop.

Tilting the cab back into the driving

Mechanical-hydraulic cab tilting unit position

Tilting the cab forwards G WARNING

If the cab is not locked, the following danger-
ous situations could arise when the vehicle
decelerates:

Breakdown assistance
Rit could tilt forwards
Ryou could lose control of the vehicle
Rpersons in the cab could be thrown for-
wards
Rpersons or objects in the swinging range
could be hit
There is a risk of an accident and injury.
Cab tilting pump, in doorway on the right-hand side Before every journey, make sure that:
(example: Actros) Rthe cab is locked
1 Drive position
Rthe cab is engaged in driving position and
2 Tilting position
the valve lever is in driving position
= Hexagon nut
Rthe indicator lamp goes out when the
Do not step on the engine when the cab is engine is started
tilted.
X Swing the valve lever on the tilting pump to
X Before tilting the cab, observe the notes
(Y page 368). driving position 1.
X Fit the pump lever with the wheel wrench to
X Open the maintenance flap (Y page 349).
hexagon nut = on the tilting pump.
X Swing up the flap on the right-hand side of
X Move the pump lever up and down on the
the doorway.
tilting pump until the cab is tipped into the
X Swing valve lever on the tilting pump to
rear end position.
position 2.
The catch engages audibly and the cab
X Fit the pump lever to hexagon nut = on the
automatically locks.
tilting pump using the wheel wrench (vehi-
Do not continue to operate the pump lever
cle tool kit).
on the tilting pump once the cab is locked in
X Move the pump lever up and down on the
position.
tilting pump until the cab tilts into the front X Close the maintenance flap.
end position.
The cab is unlocked automatically.

Z
370 Cab

X Swing the flap in the right-hand entry area X Remove remote control : from the
down until you hear it engage. bracket and step out of the swinging range
X Make sure that the º indicator lamp in of the cab.
the instrument cluster goes out after you X Press and hold the Ç button on remote
start the engine. control : until the cab has tilted into the
When the º indicator lamp goes out, the front end position.
cab is locked. If the º indicator lamp The cab has reached its end position when
does not go out, repeat the process and tip the pump sound becomes louder.
the cab back again.
Tilting the cab back into the driving
position
Electrohydraulic cab tilting unit
G WARNING
Tilting the cab forwards If the cab is not locked, the following danger-
ous situations could arise when the vehicle
decelerates:
Breakdown assistance

Rit could tilt forwards

Ryou could lose control of the vehicle
Rpersons in the cab could be thrown for-
wards
Rpersons or objects in the swinging range
could be hit
There is a risk of an accident and injury.
Before every journey, make sure that:
Do not step on the engine when the cab is Rthe cab is locked
tilted.
Rthe cab is engaged in driving position and
X Before tilting the cab, observe the notes
the valve lever is in driving position
(Y page 368).
Rthe indicator lamp goes out when the
X Press the upper section of the C button.
engine is started
The indicator lamp in the C button lights
up. The cab tilting pump is switched on. X Press and hold the Æ button on remote
X Open the maintenance flap (Y page 349). control : until the cab has tilted back into
the back end position.
The cab locks automatically.
X Insert remote control : into the bracket.
X Close the maintenance flap.

X In the cab, press the lower section of the

C button.
The indicator lamp in the C button goes
out.
X Make sure that the º indicator lamp in
the instrument cluster goes out after you
Remote control (example: Actros) start the engine.
When the º indicator lamp goes out, the
cab is locked. If the º indicator lamp
 Cab 371

does not go out, repeat the process and tip

the cab back again.

Breakdown assistance

Z
372 Engine

Problems when tilting the cab

Mechanical-hydraulic cab tilting unit

Problem Possible causes/consequences and M Solutions

The cab cannot be til- The valve lever of the mechanical-hydraulic cab tilting pump is in
ted. the "Tilt back in driving position".
X Turn the valve lever of the mechanical-hydraulic cab tilting pump
so that it points towards the "Tilt forward" position
(Y page 369).

The tilting hydraulics are leaking or have failed.

X Have the tilting hydraulics repaired at a qualified specialist
workshop.

Electrohydraulic cab tilting unit

Breakdown assistance

Problem Possible causes/consequences and M Solutions

The cab cannot be til- The cab tilting system is not switched on.
ted. X In the cab, press the upper section of the C button.
(Y page 370).
The indicator lamp in the C button lights up.

The fuse for the cab tilting pump has blown.

X Replace the fuse for the cab tilting pump in module A1 in the
main fuse carrier (Y page 384).

The tilting hydraulics are leaking or have failed.

X Have the tilting hydraulics repaired at a qualified specialist
workshop.

Engine If you have to carry out work in the engine

compartment:
Starting and stopping the engine with
the cab tilted Rswitch off the ignition
Rnever touch the dangerous areas surround-
G WARNING ing moving components, e.g. the rotation
There are moving components in the engine area of the fan
compartment. Certain components may con- Rremove jewellery and watches
tinue to move or suddenly move again even Rkeep items of clothing and hair, for exam-
after the ignition has been switched off, e.g.
ple, away from moving parts.
the radiator fan. There is a risk of injury.
 Engine 373

G WARNING Stopping the engine

Certain engine components can become very X Press external engine start/engine stop :
hot. There is a risk of injury when carrying out again.
work at the engine. X Tilt the cab back to the driving position.
Where possible, allow the engine to cool down
and only touch the components described
below. Bleeding the fuel system
Be aware of the road and traffic situation Bleeding the fuel system without fuel
when working on public roads and secure prefilter on chassis frame
your position accordingly. (OM 470/471/473 only)
! Do not bleed the fuel system with several
starting procedures. You could otherwise
damage the starter motor.
X Switch the ignition lock to the drive posi-

Breakdown assistance
tion.
X Shift into neutral.
X Tilt the cab forward (electrohydraulic
(Y page 370) or mechanical hydraulic
(Y page 369) cab tilt system).
X Unscrew the fuel tank filler cap.
Before starting and stopping the engine
X Switch the ignition lock to the drive posi-
tion.
X Shift into neutral.
X Tilt the cab forward (electrohydraulic
(Y page 370) or mechanical hydraulic
(Y page 369) cab tilt system).
Starting the engine
X Press external engine start/engine stop :
until the engine starts.
X Remove bolts ;.
Starting the engine and increasing the
engine speed X Remove cover :.
X Hold down external engine start/engine
stop : until the desired engine speed is
achieved.
After about 3 seconds, the engine speed
increases. After external engine start/
engine stop : has been released, the
engine continues to run at the speed cur-
rently set.
The engine speed can be increased up to
the limiting speed.

Z
374 Engine

If the fuel pressure was built up using hand

pump = on the main filter, you must start the
engine within 5 seconds. Otherwise, the fuel
pressure decreases and you will have to
repeat the procedure.
X Press the handle of hand pump = on the
main filter approximately 250 times in
approximately 3 minutes or until there is
noticeable resistance.
X Press the external engine start/engine
stop switch (Y page 372) within approx- Fuel prefilter on the chassis frame (example: plat-
imately 5 seconds and start the engine. form truck)
X If the engine starts: leave the engine run- : Fuel prefilter
ning at an increased engine speed. ; Drain plug
X If the engine does not start: repeat the pro- = Inspection window
cedure. ? Manual fuel pump
Breakdown assistance

X Tilt the cab back into the driving position. A Bleed screw
X Tighten the fuel tank filler cap.
Bleeding using the hand pump of the fuel
X Mount covering :. prefilter on the chassis frame
X Unscrew the fuel tank filler cap.
Bleeding the fuel system without fuel
X Place the collector underneath fuel prefil-
prefilter on chassis frame (OM 936
ter :.
only)
X Unscrew bleed screw A.
XPress the Start/Stop button as far as it will X Push hand pump ? repeatedly until the
go and hold it. Do not depress the acceler- fuel escaping at bleed screw A is free of
ator pedal whilst doing so. bubbles.
i The starting procedure is automatically X Tighten bleed screw A.
cancelled after approximately 60 seconds.
i If there was no fuel in the fuel tank, press
X Once the engine starts normally, release hand pump ? again until there is noticea-
the Start/Stop button and depress the ble resistance. Vehicles with
accelerator pedal several times. OM 470/471/473: bleed also using the
The fuel system is completely bled. hand pump on the main filter (Y page 373).
X If the engine does not start: hold the Start/
X Tighten the fuel tank filler cap.
Stop button pressed down to the stop
X Press the Start/Stop button as far as it will
again.
go and hold it. Do not depress the acceler-
ator pedal whilst doing so.
Bleeding the fuel system with fuel pre-
i The starting procedure is automatically
filter on the chassis frame
cancelled:
H Environmental note Rafter approximately 60 seconds on vehi-
Dispose of the water-fuel mixture in an envi- cles with the OM 936 engine
ronmentally responsible manner. Rafter approximately 40 seconds on vehi-
cles with the OM 470 471 or OM 473
engine.
 Engine 375

X Once the engine starts normally, release Upper air regulation system
the Start/Stop button and depress the
accelerator pedal several times.
The fuel system is completely bled.
X Vehicles with OM 936: if the engine does
not start, hold the Start/Stop button
pressed down to the stop again.

Air regulation system

Function
Upper air regulation system (example: Actros)
H Environmental note
: Step
If the air regulation system is malfunctioning,
fuel consumption may increase. 1 Released
2 Engaged

Breakdown assistance
The air regulation system controls the air sup- X To open and lock: stop the vehicle and
ply to the engine radiator. If the slats are apply the parking brake.
open, a high volume of air flows through the
X Switch off the engine.
engine radiator and the coolant is cooled with
X Switch the ignition lock to position 0.
maximum efficiency. If the slats are closed,
less air flows through the engine radiator and X Fold down access step : beside the left
the coolant heats up more quickly. headlamp.
If the air regulation system is malfunctioning X To open the slats of the upper air regulation
and foreign objects/dirt are not the cause of system, carefully fold down one of the mid-
the issue, you must manually open and lock dle slats.
the affected air regulation system. Open the X Turn the lock of the upper air regulation
upper and lower air regulation system and system clockwise to position 2.
lock them before you drive on. Have the air
regulation system repaired as soon as possi- Lower air regulation system
ble at a qualified specialist workshop.

Lower air regulation system (example: Actros)

Z
376 Engine

X To open and lock: to open slats ; of the

lower air regulation system, carefully fold
up one of the middle slats.
X Turn locking screw = with the Torx key
(vehicle tool kit) approximately Ö a turn.
The locking lever is unscrewed and locks
the lower air regulation system.
Breakdown assistance
 Flat tyre 377

Engine does not start

Problem Possible causes/consequences and M Solutions

Engine fails to start The flow properties of the diesel fuel are inadequate due to paraffin
when the outside tem- separation.
perature is low. X Malfunctions resulting from paraffin separation can be correc-
ted by warming the entire fuel system, e.g. by parking the vehicle
in a heated area.
X If the engine does not start after another attempt, have the
cause traced and rectified at a qualified specialist workshop.

The engine will not The loading tailgate is switched on. sEngine block active
start. appears in the grey event window in the on-board computer.
X Deactivate the loading tailgate; see the separate operating
instructions.

Breakdown assistance
The engine electronics are malfunctioning.
X Before attempting the next start, switch the ignition lock unit to
position 0.

The vehicle has been parked up with a gear engaged, e.g. when the
reservoir pressure in the transmission/clutch circuit is exhausted
as a result of operating the battery isolator switch. For safety rea-
sons, the engine cannot be started when a gear is engaged.
X Charge the compressed-air system with an external
compressed-air source.
The transmission control can disengage the clutch again and
engage neutral gear.
X Start the engine again.

Flat tyre G WARNING

If you do not position the jack correctly at the
Changing a wheel in the event of a flat
appropriate jacking point of the vehicle, the
tyre
jack could tip over with the vehicle raised.
Important safety notes There is a risk of injury.
Only position the jack at the appropriate jack-
G WARNING ing point of the vehicle. The base of the jack
On uphill and downhill slopes, the jack could must be positioned vertically, directly under
tip over with the vehicle raised. There is a the jacking point of the vehicle.
danger of injury.
Do not change wheels on uphill or downhill G WARNING
gradients. Contact a qualified specialist work- If you park a vehicle with pneumatic suspen-
shop. sion and leave the ignition switched on, the
pneumatic suspension remains active. If you

Z
378 Flat tyre

then raise the vehicle using the jack, the pneu- You must observe the correct wheel and
matic suspension attempts to compensate tyre dimensions as well as the wheel type.
the vehicle level. The jack could tip over.
There is a danger of injury. ! Do not raise vehicles equipped with a
Remove the key from the ignition lock before loading crane or loading tailgate by using
raising the vehicle. This prevents automatic the hydraulic supports. This would cause
readjustment of the vehicle level. damage to the chassis.
When changing a wheel:
G WARNING Ronly use wheel nuts that are approved for
Oiled, greased or damaged wheel nuts or your vehicle.
wheel bolt threads can cause the wheel nuts Rnote that the wheel nuts for steel and light-
to loosen or be damaged. As a result, you
alloy wheels differ.
could lose a wheel while driving. There is a risk
Rnote that the wheel nuts for light-alloy
of an accident.
wheels on the front and rear axles differ.
Never oil or grease the threads. In the event of
Rnote that wheels with a tyre pressure sen-
damage to the threads, contact a qualified
Breakdown assistance

specialist workshop immediately. Have the sor have a red ring on the tyre valve.
damaged wheel nuts or wheel bolts replaced. Rnote that on vehicles with a tyre pressure

Do not drive on. monitor, if the fitted wheel does not have a
tyre pressure sensor, an event window
G WARNING appears in the display.
If you remove a wheel that is resting on the Observe the following notes when using the
wheel bolts under load, it may fall off or tip. jack to raise the vehicle:
There is a risk of injury. Rthe jack is designed only to raise the vehi-
Remove the last three wheel nuts when it is cle for a short time, e.g. while a wheel is
clear that the wheel is being held tension-free being changed. It is not suitable for raising
on the wheel bolts. and holding the vehicle so that work can be
carried out underneath it.
G WARNING Ronly position the jack at the appropriate
Wheel and tyre dimensions as well as the type jacking point of the vehicle. Make sure that
of tyre can vary between the spare wheel and the jack is correctly positioned on the jack-
the wheel to be replaced. When the spare ing point before raising the vehicle.
wheel is fitted, driving characteristics may be The jacking point may differ on special bod-
severely affected. There is a risk of an acci- ies. Observe the operating instructions
dent. issued by the body manufacturer.
To prevent risks: Rsecure the vehicle before raising it to pre-
Ryou should therefore adapt your driving vent it from rolling away, e.g. by applying
style and drive carefully. the parking brake and/or using chocks. Do
Rnever fit more than one spare wheel that
not release the parking brake while the
differs from the wheel to be replaced. vehicle is raised.
Rthe surface on which the jack is standing
Ronly use a spare wheel that differs from the
wheel to be replaced for a short time. must be firm and level. Place the jack on an
underlay if the surface is not firm.
Rhave a spare wheel that differs from the
Rmake sure that the gap between the under-
wheel that has been changed replaced at
the nearest qualified specialist workshop. side of the raised tyre and the ground does
 Flat tyre 379

not exceed 30 mm. The vehicle could oth-

erwise slip off the jack or tip over.
Rdo not change a wheel on a slope. The vehi-
cle could otherwise slip off the jack.
Rdo not place your hands or feet under the
raised vehicle.
Rdo not lie under the raised vehicle.
Rmake sure that nobody is in the vehicle
when it is raised.
Rdo not start the engine and avoid jolting or
shaking the vehicle while it is raised. The Spacer
vehicle could otherwise slip off the jack.
X Park the vehicle on a firm and level surface.
X Apply the parking brake.
X Use chocks to safeguard the vehicle

Breakdown assistance
against rolling away.
For further information on tyre pressure, see
the "Wheels and tyres" section (Y page 401).

Spare wheel
! Always use spacers to secure wheels of Spare wheel (on the side of the chassis)
the following sizes to the spare wheel
bracket: Clean rust and dirt off nuts = and bolts reg-
R355/50 R 22.5
ularly. Spray nuts = and fastening bolts reg-
ularly with rust-penetrating oil.
R365/50 R 22.5
Removing the spare wheel
R375/50 R 22.5
X If necessary, remove the side panel or side
R385/55 R 22.5
underride guard.
R385/65 R 22.5
X Assemble the hand crank and the pump
You could otherwise damage the wheel or lever (vehicle tool kit) (Y page 367).
the spare wheel bracket.
X Fit the pump lever and the hand crank on
Before fitting the wheel to the spare wheel spare wheel hoist :. Make sure that the
bracket, guide the retaining plate with the retaining sleeve on spare wheel hoist :
fastening bolts though the centre of the engages in the recesses on the pump lever.
wheel rim. From the other side of the wheel,
X Turn spare wheel hoist : until cable ; is
screw the spacer (from the vehicle tool kit)
to the fastening bolts. taut.
X Unscrew nuts =.
X Lower the spare wheel using spare wheel
hoist :, completely unwinding cable ;.
X Pull the spare wheel out to the side or to the
rear.

Z
380 Flat tyre

X Unscrew the spare wheel from the spare X Flat tyre on the left-hand side of the vehicle:
wheel bracket. turn the multifunction steering wheel to the
X Remove the retaining plate through the left as far as it will go.
centre hole of the wheel rim. or
X Flat tyre on the right-hand side of the vehi-
Positioning the jack cle: turn the multifunction steering wheel
to the right as far as it will go.
Steel-sprung front axle X Position the jack under the jacking point of
the air spring carrier, just in front of the
front axle.

All-wheel-drive front axle

Breakdown assistance

X Flat tyre on the left-hand side of the vehicle:

turn the multifunction steering wheel to the
left as far as it will go.
or
X Flat tyre on the right-hand side of the vehi- X Flat tyre on the left-hand side of the vehicle:
cle: turn the multifunction steering wheel turn the multifunction steering wheel to the
to the right as far as it will go. left as far as it will go.
X Position the jack under the jack mounting or
point beneath the spring mounting directly X Flat tyre on the right-hand side of the vehi-
in front of the front axle. cle: turn the multifunction steering wheel
to the right as far as it will go.
Air-sprung front axle X Position the jack under the jacking point
beneath the front axle.

Steel-sprung rear axle

Example: steel-sprung rear axle

 Flat tyre 381

X Position the jack under the jack mounting X Position the jack under the jack mounting
point on the axle tube. point on the air spring carrier.

Air-sprung rear axle Steered trailing axle

X Position the jack under the jack mounting Example: steered trailing axle
point on the air spring carrier. X Position the jack so that the jack plunger is

Breakdown assistance
centrally located under the axle carrier.
Air-sprung leading axle
Removing a wheel

Example: air-sprung leading axle

X Position the jack under the axle tube, Wheel nut caps
between the fastening brackets.
1 To loosen
Air-sprung trailing axle 2 To tighten
X Using the wheel nut wrench, loosen 1 the
wheel nut caps and remove them.

Example: air-sprung trailing axle

Z
382 Flat tyre

Before fitting a wheel

X Remove any corrosion and dirt from the
contact areas of the wheel hub, rim and
wheel nuts.
X Lightly oil the friction contact surfaces
between the pressure plate and the wheel
nut.
Fitting a steel wheel
X Single tyres: fit the wheel in place and
screw on 2 to 3 wheel nuts.
X Unscrew the wheel nuts that secure wheel
X Single tyres: screw on the remaining wheel
nut cover :.
nuts together with the wheel nut cover.
X Remove wheel nut cover :.
X Twin tyres: fit both the wheels and screw on
X Unscrew the remaining wheel nuts.
all remaining wheel nuts.
X Remove the wheel.
X Tighten the wheel nuts in a crosswise pat-
Breakdown assistance

tern, observing the tightening torque while

Fitting a wheel doing so (Y page 416).
X Fit the wheel nut caps, observing the tight-
! After changing a wheel, check the tyre
pressure immediately. ening torque while doing so (Y page 416).
X Check the tyre pressure (Y page 401).
Observe the notes on operating and road
safety. X The wheel nuts must be retightened after
50 km (Y page 383).
! Do not tighten the wheel nuts with an
impact wrench. This could damage the
wheel nuts or wheel bolts.

Assembly sleeve for twin tyres (vehicles with light-

alloy wheels)

Wheel nuts Fitting a light-alloy wheel

: For single tyres with light-alloy wheels X Single tyres: fit the wheel in place and
; For twin tyres with light-alloy wheels screw on 2 to 3 wheel nuts.
= Wheel nut identification for light-alloy X Single tyres: screw on the remaining wheel
wheels nuts together with the wheel nut cover.
? With pressure plate for steel wheels X Twin tyres: place the assembly sleeve (vehi-
cle tool kit) on the wheel bolt before fitting
the inner wheel.
 Electrical fuses 383

X Twin tyres: fit both the wheels and screw on Electrical fuses
2 to 3 wheel nuts.
X Twin tyres: remove the assembly sleeve.
Important safety notes
X Twin tyres: screw on the remaining wheel G WARNING
nuts. If you manipulate, bridge or replace a faulty
X Tighten the wheel nuts in a crosswise pat- fuse with a fuse of a higher amperage, the
tern, observing the tightening torque while electric cables could be overloaded. This may
doing so (Y page 416). result in a fire. There is a risk of an accident
X Fit the wheel nut caps, observing the tight- and injury.
ening torque while doing so (Y page 416). Always replace faulty fuses with specified new
X Check the tyre pressure (Y page 401). fuses of the correct amperage.
X The wheel nuts must be retightened after
The individual electrical circuits are protected
50 km (Y page 383).
by safety fuses or automatic circuit-breakers.
Blown fuses or defective automatic circuit-
Retightening the wheel nuts breakers must be replaced by equivalent

Breakdown assistance
fuses with the fuse ratings recommended in
G WARNING the fuse allocation chart. Fuses with the same
The wheels could work loose if the wheel nuts fuse rating are the same colour. You can
and bolts are not tightened to the specified obtain further information from any
tightening torque. There is a risk of accident. Mercedes-Benz Service Centre.
Have the tightening torque immediately The fuse allocation chart is on the inside of
checked at a qualified specialist workshop the main fuse carrier cover.
after a wheel is changed. If the newly inserted fuse also blows, have the
cause traced and rectified at a qualified spe-
! Check wheel nuts regularly for tightness. cialist workshop.
Retighten if necessary. Replace damaged X If a circuit fails, switch off the consumer
wheel nut cover caps and wheel nut covers. equipment and switch the ignition lock to
Observe the wheel nut tightening torque. position 0.
Always observe the instructions and safety
notes on "Changing a wheel in the event of a
flat tyre" (Y page 377). Removing the main fuse carrier cover
Observe the wheel nut tightening torques
(Y page 416).
Retighten the wheel nuts after 50 km.
When using new or newly painted wheel rims,
check the tightening torque of the wheel nuts
again after travelling approximately 1,000 to
5,000 km.
X Retighten the wheel nuts in a crosswise
pattern.
On light-alloy wheels, the wheel nuts are not
flush with the wheel bolts when tightened. X Open fasteners ; and remove cover :.

Z
384 Electrical fuses

Layout of the fuses Fuses in base module (GM) for SCA:

Consumer
F1 Brake system 20 A
(terminal 30.1)
F2 Control unit on the driver's 20 A
door
F3 Control unit on the passeng- 20 A
er's door
F4 Drive control, speedometer 20 A
Main fuse carrier (terminal 30)
: Relays in module A32 F5 Programmable special mod- 15 A
; Fuses, relays and diodes in the base mod- ule, distribution terminal 30
ule (GM)
Breakdown assistance

F6 Blower, auxiliary air condi- 25 A

= Relays in module A31
tioning
? Fuses in modules A1 and A2
Relays in module A31: F7 Radio/navigation, voltage 25 A
transformer 24 V/12 V, 18 A
Consumer distribution terminal 30
K1 Working-area lamp, exchange F8 Voltage transformer 24 V/ 20 A
dropside body 12 V, 10 A, auxiliary heater,
adaptive route calculator
K2 Transfer case oil cooler control unit, coolbox
K3 Fuel prefilter heater with water sep- terminal 30
arator F9 Diagnostics connection 10 A
K4 Loading tailgate (terminal 30)

K5 Loading tailgate F10 Heater, driver assistance 10 A

system terminal 30
K6 Radio 12 V terminal 58
F11 Tyre pressure monitor, fleet 10 A
K7 Radio 12 V terminal 15R management system, tele-
phone, Toll Collect, rear wall
K8 Auxiliary headlamps (terminal 58)
stowage compartment lamp,
K9 Interior lighting for low roof reading lamp terminal 30
K10 Interior lighting for low roof F12 Sliding sunroof, steering 15 A
wheel angle sensor, ATA
(anti-theft alarm system),
LSVA (terminal 30)
F13 Level control, retarder, 25 A
hydrodynamic clutch (turbo
retarder clutch) terminal 30
 Electrical fuses 385

Consumer Consumer
F14 Body manufacturer 10 A F26 Drive control, programmable 10 A
(terminal 30) special module (terminal 15)
F15 Trailer (terminal 30) 20 A F27 Driver assistance system, 10 A
adaptive route calculator
F16 Trailer ABS (terminal 30) 20 A control unit, reversing cam-
F17 Ignition lock, central gateway 5A era terminal 15

F18 Instrument cluster, modular 5A F28 Retarder, electronic air pro- 10 A

switch field, remote output cessing unit, hydrodynamic
voltage transformer clutch (turbo retarder clutch)
terminal 30 terminal 15

F19 Cigarette lighter 5A F29 Transmission control 15 A

(terminal 15) or 15 A (terminal 30.1)
Socket (terminal 15)

Breakdown assistance
F30 Brake system 20 A
F20 Seat heating, loading tailgate 20 A (terminal 30.2)
distribution terminal 15 F31 Trailer brake lamp 15 A
F21 Distribution (terminal D+), 15 A F32 24 V sockets, 24 V additional 25 A
fuel prefilter heater with socket
water separator, fuel prefilter
heater with water separator F33 Roof stowage compartment 10 A
frame lamp, distribution
terminal 30
F22 Body manufacturer 10 A
terminal D+, fuel prefilter F34 24 V power socket 25 A
heater with water separator F34 Non-MB body electrical sys- 15 A
F23 BlueTec exhaust gas after- 5A tem
treatment, roller sunblind, F36 Electronic air processing unit 20 A
Toll Collect, trailer coupling (terminal 30)
(trailer coupling), MEILLER
basic wiring, hydraulic addi- F37 Transmission control 15 A
tional drive system (HAD) (terminal 30.2)
terminal 15
F24 Instrument cluster, tacho- 5A Fuses in base module (GM) for single SAM:
graph, brake system, airbag, Consumer
engine management, tele-
phone, transmission control, F1 Brake system 20 A
battery isolator switch, fleet (terminal 30.1)
management system, dis-
tance-related heavy vehicle F2 Diagnostics connection 10 A
fee distribution terminal 15
F25 Trailer ABS (terminal 15) 10 A

Z
386 Electrical fuses

Consumer Consumer
F3 Auxiliary heating, adaptive 15 A F17 Loading tailgate 15 A
route calculator control unit,
voltage transformer 24 V/ F18 Seat heating 15 A
12 V, 10 A terminal 30 F20 Non-MB body electrical sys- 15 A
F4 Tyre pressure monitor, rear 10 A tem
stowage compartment lamp, F20 24 V power socket 25 A
steering wheel angle sensor,
fleet management system, F21 Distribution (terminal D+), 15 A
telephone, Toll Collect fuel prefilter heater with
terminal 30 water separator, fuel prefilter
heater with water separator
F5 Sliding sunroof, EDW (anti- 15 A frame
theft alarm system), dis-
tance-related heavy vehicle F22 Body manufacturer 10 A
fee terminal 30 terminal D+, fuel prefilter
Breakdown assistance

heater with water separator

F6 Heating, driver assistance 10 A
system, reading lamp F25 Trailer ABS (terminal 30) 20 A
terminal 30 F26 Trailer (terminal 30) 20 A
F7 Electronic air processing unit 20 A F27 Control unit on the driver's 20 A
(terminal 30) door
F8 Level control, retarder 25 A F29 Control unit on the passeng- 20 A
F9 BlueTec exhaust gas after- 10 A er's door
treatment, roller sunblind, F32 Roof stowage compartment 10 A
Toll Collect, body manufac- lamp
turer terminal 15
F33 24 V sockets, 24 V additional 25 A
F10 Trailer brake lamp, body 20 A socket
manufacturer brake lamp
F35 Blower 25 A
F11 Programmable special mod- 20 A
ule terminal 30, coolbox F36 Hydraulic additional drive 5A
system (HAD), instrument
F12 Drive control, speedometer 20 A cluster, tachograph, brake
(terminal 30) system, airbag, engine man-
F13 Radio/navigation, voltage 25 A agement, telephone, trans-
transformer 24 V/12 V, mission control, battery iso-
18 A lator switch, fleet manage-
ment system, distance-rela-
F14 Body manufacturer 10 A ted heavy vehicle fee, adap-
(terminal 30) tive route calculator control
F15 Transmission control 15 A unit, MEILLER basic wiring,
(terminal 30.1) terminal 15

F16 Trailer ABS (terminal 15) 10 A

 Electrical fuses 387

Consumer Consumer
F37 Brake system 20 A K6 Trailer brake lamp
(terminal 30.2)
K7 Amplifier (terminal 15)
F38 Driver assistance system, 10 A
reversing camera, exchange K8 Bi-stable relay
dropside body terminal 15 K9 Bi-stable relay
F39 Transmission control 15 A
(terminal 30.2) Diodes in base module (GM):

F40 Drive control, programmable 10 A Consumer

special module (terminal 15)
D1 Loading tailgate
F41 Retarder, electronic air pro- 10 A
cessing unit terminal 15 D2 Unassigned

F42 Cigarette lighter or 5A D3 Unassigned

Breakdown assistance
Socket 15 A D4 Unassigned
D5 Unassigned
Relay in base module (GM) for SCA:
Consumer Relays in module A32:

K1 Amplifier (terminal 15) Consumer

K2 Amplifier (terminal D+) K1 Windscreen heating
K3 Amplifier (terminal 15) K2 Windscreen heating
K4 Transmission oil cooling K3 Auxiliary headlamps
(terminal 56a)
K5 Amplifier (terminal 15)
K4 Unassigned
K6 Trailer brake lamp
K5 Unassigned
K7 Bi-stable relay
K6 Unassigned
K8 Bi-stable relay
Fuses in A1 modules:
Relay in base module (GM) for single SAM:
Consumer
Consumer
F1 Cab tilting pump 25 A
K1 Unassigned
F2 Loading tailgate 10 A
K2 Amplifier (terminal D+)
F3 Rotating beacon 10 A
K3 Transmission oil cooling
F4 Working-area lamp, 10 A
K4 Amplifier (terminal 15) exchange dropside body
K5 Amplifier (terminal 15)

Z
388 Electrical fuses

Consumer Consumer
F5 Illuminated Mercedes star, 10 A F12 Unassigned
power socket for hand lamp
F13 Unassigned
F6 Non-MB body electrical sys- 15 A
tem F14 Unassigned

F7 Windscreen heating 25 A
Checking and replacing a safety fuse
F8 Windscreen heating 25 A
X Pull the fuse out of the module using the
F9 Oil cooling transfer case, 10 A
pliers and carry out a visual inspection.
hydraulic additional drive
X If the fuse wire has melted, replace the
system (HAD)
blown fuse with a spare fuse.
F10 Fuel prefilter heater with 15 A X Switch on consumers and check that they
water separator function correctly.
Breakdown assistance

F11 Auxiliary air conditioning 10 A If the safety fuse blows again, have the elec-
with single SAM trical system checked at a qualified specialist
workshop.
F12 Fan for hydraulic additional 15 A
drive system (HAD)
F13 Unassigned Checking and switching on an auto-
matic circuit-breaker
F14 Unassigned

Fuses in A2 modules:
Consumer
F1 MEILLER basic wiring 10 A
F2 Electrics for non-MB body 2 20 A
and 3, switch for additional
axle for body
F3 Steered additional axle 10 A
Automatic circuit-breaker
F4 Auxiliary headlamps 15 A If an automatic circuit-breaker is triggered,
F5 Air regulation system 10 A pin ? moves to OFF position 2.
X Pull the automatic circuit-breaker out of the
F6 Subwoofer 10 A
module.
F7 ADR for England 5A X Press pin ? into ON position 1.
X Press trigger =.
F8 Interior lighting for low roof 5A
If pin ? moves to OFF position 2, the
F9 Unassigned automatic circuit-breaker is functioning
correctly.
F10 Unassigned
If pin ? does not move to OFF position 2,
F11 Unassigned replace the automatic circuit-breaker.
 Jump-starting, tow-starting and towing away 389

X Press pin ? into ON position 1 and refit

the circuit-breaker.
X Switch on consumers and check that they
function correctly.
If the automatic circuit-breaker is triggered
again, have the electrical system checked at a
qualified specialist workshop.

Charging the compressed-air system

Connection 28 on the electronic air processing unit
! If the supply pressure of the external (example: semitrailer tractor vehicle)
compressed-air source is under 11 bar it If you fill the compressed-air system via con-
cannot be guaranteed that you will be able nection 28 ; on the electronic air process-
to fill all the pressure circuits. ing unit, the pressure circuit of the air sus-
Bear in mind that the compressed air does pension is also filled.

Breakdown assistance
not pass through the compressed-air drier
if you fill the compressed-air system via: i The electronic air processing unit con-
tains the following components in one unit:
Rconnection 28 on the electronic air pro-
Ra pressure regulator
cessing unit
Rcompressed-air dryer
Rthe connections on the brake power sen-
sor beneath the maintenance flap Ra multiple-circuit safety valve

For this reason, the air from the external Ra pressure limiting valve
compressed-air source must be clean and Rcontrol unit
dry. Before towing, check that the spring-loaded
Fill the pressure circuits up to a maximum cylinders of the parking brake are released. If
pressure of 12.5 bar. Otherwise, the compressed-air supply is insufficient,
compressed-air system components could release the spring-loaded cylinders manually
be damaged. (Y page 394).

Jump-starting, tow-starting and tow-

ing away
Jump-starting
Important safety notes
G WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing.
Filler connections on the brake power sensor Do not inhale battery vapours. When carrying
When the engine is not running, fill the out maintenance work on the battery, wear
compressed-air system via filler connec- acid-resistant protective clothing, in particu-
tions : at the front of the brake power sen- lar eye protection, protective gloves and an
sor. This does not fill the pressure circuit of
the air suspension.
Z
390 Jump-starting, tow-starting and towing away

apron. Do not lean over the battery. Keep bat- ! When you remove the jump leads, let the
teries out of the reach of children. engine of the vehicle being jump-started
If you come into contact with battery acid, idle. This avoids damage being caused to
observe the following: the vehicle electronics.
RRinse battery acid off the affected areas of General notes
skin immediately and seek medical atten-
tion without delay. Observe the safety notes and protective
RIf battery acid comes into contact with your measures when handling the battery
eyes, rinse them out thoroughly with clean (Y page 355).
water immediately. Seek medical attention After jump-starting, have the batteries
without delay. checked at a qualified specialist workshop.
X Make sure that the vehicles are not touch-
G WARNING ing.
During charging and jump-starting, explosive X Apply the parking brake.
gases can escape from the battery. There is a X Switch off all electrical consumers.
risk of an explosion.
Breakdown assistance

X Switch the ignition lock to position 0.

Particularly avoid fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting. Vehicles without a jump-starting con-
Do not lean over a battery. nection point

! Observe the following notes. You could

otherwise damage the battery or electronic
components in the vehicle:
Rdo not use a battery quick-charge unit for
jump-starting.
Rif you use a mobile battery charger (bat-
tery device with mains power stage),
remove the mains plug before jump-
starting.
Ronly have jump-starting provided by vehi-
Vehicles without a jump-starting connection point
cles with a 24 V system. (example: platform truck)
Ruse jump leads which are protected
Connecting the jump lead
against polarity reversal and with a wire
X Remove the battery compartment cover
cross section of approximately 35–
50 mm2 and insulated terminal clamps. (Y page 356).
X First, connect the positive terminal clamp
Rif the outside temperature drops below
Ò10 †, a discharged battery could freeze. of the jump lead to the positive terminal of
Do not start the engine under these cir- the other vehicle's battery and then to the
cumstances. Let the battery thaw out q positive terminal of the starter battery.
first. X First, connect the negative terminal clamp
of the jump lead to the negative terminal of
! Do not connect the negative terminal the other vehicle's battery and then to the
clamp of the jump lead to the chassis ± negative terminal of the starter battery.
frame. Otherwise, engine or transmission
components can be damaged.
 Jump-starting, tow-starting and towing away 391

X Assisting vehicle: run the engine at a high X First, connect the negative terminal clamp
speed. of the jump lead to the negative terminal of
X Start the engine and leave it running at the other vehicle's battery.
idling speed. X Slide back the black protective cap with the

Disconnecting the jump lead other negative terminal clamp of the jump
lead and connect the negative terminal
X First, disconnect the negative terminal clamp to the ± negative terminal.
clamps of the jump lead from the negative X Assisting vehicle: run the engine at a high
terminals. speed.
X Remove the positive terminal clamps of the
X Start the engine and leave it running at
jump lead from the positive terminals. idling speed.
Disconnecting the jump lead
Vehicles with a jump-starting connec-
tion point X First, disconnect the negative terminal
clamps of the jump lead from the negative
terminals.

Breakdown assistance
The black protective cap of the jump-start
connection point springs back into its orig-
inal position.
X Remove the positive terminal clamps of the
jump lead from the positive terminals.
The red protective cap of the jump-start
connection point springs back into its orig-
inal position.

Notes on tow-starting and towing

away
Specialist knowledge beyond the scope of
these Operating Instructions is required for
towing/tow-starting. Only have your vehicle
towed away/tow-started by a professional
towing/recovery company.
Only in exceptional cases, e.g. when leaving
areas of danger, should the vehicle be towed
Vehicles with a jump-starting connection point with the propeller shaft installed.
(example: tractor/semitrailer combination) Vehicles with electric power steering: only
Connecting the jump lead tow-start the vehicle if the ignition is switched
on and the red D warning lamp is not lit in
X First, connect the positive terminal clamp the instrument cluster. Tow-start the vehicle
of the jump lead to the positive terminal of on a straight stretch of road. Only tow the
the other vehicle's battery. vehicle with raised front axles.
X Slide back the red protective cap with the
other positive terminal clamp of the jump
lead and connect the positive terminal
clamp to the q positive terminal.

Z
392 Jump-starting, tow-starting and towing away

X Observe the general notes on towing away, lose control of the vehicle. There is a risk of an
except the information on removal of the accident.
propeller shaft. Always use a tow bar. Always ensure the
X Activate backup drive mode and towing compressed-air supply using an external
mode (Y page 151). compressed-air source.
i Information on towing away and recovery ! Attachments and bodies can affect the
can be found on the Internet at: https:// vehicle height and width. Do not exceed the
portal.aftersales.i.daimler.com permissible vehicle height and observe the
You can obtain further information from any legal requirements for the country you are
Mercedes-Benz Service Centre. currently in.
If the rear of the vehicle is raised for towing
away, fold back the wind deflectors.
Manoeuvring/tow-starting and tow- Drive carefully and anticipate road and traf-
ing away fic conditions. Observe the maximum clear-
Important safety notes ance of underpasses.
Breakdown assistance

! When towing/tow-starting, please

G WARNING observe the following:
If the distance control assistant is switched
RIf the engine is not running, have the pro-
on, the vehicle accelerates or brakes auto-
matically in certain situations. If you use the peller or drive shaft removed. Otherwise,
vehicle as working machinery with distance the transmission may be damaged.
control assistant switched on, the vehicle may RIf the engine is not running and the
accelerate or brake unexpectedly. There is a spring-loaded parking brake is activated
risk of an accident. as a result of a loss of compressed air,
Always switch off the distance control assis- the brakes may overheat and be dam-
tant in this or similar situations. aged. Charge the compressed-air system
or disengage the spring-loaded parking
G WARNING brake manually.
RFor vehicles with air suspension, check
If Active Brake Assist is activated while you
are towing your vehicle or using it, e.g. as the driving level during towing/tow-
working machinery, the vehicle may brake starting and correct it if necessary. Oth-
automatically. The wheels could lose grip. erwise, parts of the vehicle or the air sus-
There is a risk of an accident. pension could be damaged.
RBefore towing, switch off Active Brake
Always deactivate Active Brake Assist in this
or similar situations. Assist. Otherwise, Active Brake
Assist could brake the vehicle while it is
G WARNING being towed. This could cause the brakes
to overheat and be damaged.
If the engine is not running, the hydraulic
power steering and the compressed-air sup- If you transport the vehicle on a low-loader,
ply are inoperative. To steer, you will require the permissible vehicle height may be excee-
considerably more force. The spring-loaded ded. Pay attention to the headroom clearance
parking brake can activate if there is a loss of of buildings, e.g. bridges.
compressed air and the vehicle may then Before towing, agree on a clear signal with the
brake uncontrollably. You could therefore towing vehicle driver. Both you and the towing
 Jump-starting, tow-starting and towing away 393

vehicle driver must adapt your driving styles X Grasp licence plate holder ; at the sides
to the more difficult conditions. and swing it down.
Information on charging the compressed-air X Turn CAMLOC pin ? 90° anti-clockwise
system using an external compressed-air and remove it.
source can be found in the "Charging the X Swing coupling pin = approximately 90°
compressed-air system" section forwards and pull it up and out.
(Y page 389). X Attach the towbar.
Information on releasing the spring-loaded X Push coupling pin = down through the
parking brake can be found in the "Releasing eyelet of the towing bar.
the spring-loaded parking brake" section
X Swing coupling pin = approximately 90°
(Y page 394).
backwards.
X Insert CAMLOC pin ? and turn it clockwise
Coupling jaw
90°.
The CAMLOC pin engages noticeably.
X Position coupling pin cover : and clip it in

Breakdown assistance
place.

Front towing eyes

G Warning
If you lift the vehicle onto towing eyes that
differ from the original towing eyes, they can
break. The vehicle could fall out of the bracket
while being towed. There is a risk of an acci-
dent.
For safety reasons, only use towing eyes for
lifting that have been specified and approved
for your vehicle.

Example: coupling jaw

Use the front coupling jaw for manoeuvring,
tow-starting and towing away.
The coupling pin is prevented from rotating
(e.g. when towing with a steel rope) by a
CAMLOC pin.
X Vehicles with a large approach/departure/
overhang angle: fold down the collapsible
step.
X Remove coupling pin cover : forwards.

Z
394 Jump-starting, tow-starting and towing away

Rear towing coupling

Example: cross member with towing coupling

Use the rear towing coupling for manoeu-
vring, tow-starting and towing away.
X Unhook catch ; on coupling pin :.
Breakdown assistance

X Remove coupling pin :.

X Attach the towbar.
X Push coupling pin : down through the
eyelet of the towing bar.
Front towing eye (example: Actros) X Hook catch ; onto coupling pin : again.

If towing eye ; is not included in the vehicle

tool kit, you can obtain towing eye ; at any
Mercedes-Benz Service Centre. Press the Releasing the spring-loaded parking
area marked with an arrow on cover : in brake
order to open it. Towing eye ; is screwed Arrangement of the spring-loaded park-
into the frame head behind cover :. Make ing brake cylinders
sure that the towing eye is completely
screwed in. If the thread is dirty, clean it
before screwing the towing eye in.
The towing eyes are made from a special
material with higher strength values. Only use
the original towing eyes.
You will need a second towing eye in order to
lift the vehicle at the front. The person towing
away the vehicle should bring one with them
or you can purchase one at a Mercedes-Benz
Service Centre. The vehicle can thus be raised
and towed away. : Spring-loaded parking brake cylinder
Vehicles with fittings for front attach- (example: platform truck)
ments: the threaded hole is not suitable for
The positioning of the spring-loaded parking
towing eyes. Do not use towing eyes for tow- brake cylinder on the front and/or rear axle
starting and towing away. Use the front cou- depends on the axle type.
pling jaw for tow-starting and towing away the
vehicle.
 Jump-starting, tow-starting and towing away 395

Positioning on the front axle(s) Manually releasing the spring-loaded

parking brake cylinder
1 2
! Undo the release bolt with a maximum
4x2 x4, 5 — torque of 70 Nm. Do not use an impact
wrench. You could otherwise damage the
4x4 x4 —
spring-loaded parking brake cylinder.
6x2 — —
6x2 DNA x4 —
6x2 /2 x —
6x2 /4 x —
6x4 x4, 5 —
6x6 x4 —

Breakdown assistance
8x4 ENA x —
8x4/4 — x Spring-loaded parking brake cylinder with release
screw
8x6 /4 x4 x
8x8/4 x4 x

Positioning on the rear axle(s)

1 2
4x2 x —
4x4 x —
6x2 x x Spring-loaded parking brake cylinder with release
screw and release indicator
6x2 /2 — x
: Spring-loaded parking brake cylinder
6x2 /4 — x ; Release screw
6x4 x x 3 Drive position
4 Released position
6x6 x x
If there is insufficient reservoir pressure to
8x4 ENA x x release the parking brake, release the spring-
loaded parking brake cylinders mechanically
8x4/4 x x
in the event of an emergency.
8x6 /4 x x The vehicles may be fitted with different types
of spring-loaded parking brake cylinders
8x8/4 x x
depending on the axle, e.g. spring-loaded
parking brake cylinders with a release screw
4 Optional equipment.
5 In connection with disc brakes.

Z
396 Jump-starting, tow-starting and towing away

or with a release indicator. Release all the

spring-loaded parking brake cylinders on the
vehicle.
X Use chocks to safeguard the vehicle
against rolling away.
X Turn release screw ; of spring-loaded
parking brake cylinder : anti-clockwise
until the stop in release position 4.

Moving the spring-loaded parking brake

cylinder to the driving position
! Tighten the release bolt up to a torque of
35 Nm. Do not use an impact wrench. You
could otherwise damage the spring-loaded
parking brake cylinder.
Breakdown assistance

Reset all spring-loaded parking brake cylin-

ders to the drive position.
X Charge the brake circuit until the cut-off
pressure is reached.
X Swing the parking brake lever as far as it
will go to the released position.
X Turn release screw ; of spring-loaded
parking brake cylinder : clockwise to driv-
ing position 3.
X Tighten release screw ;.
 397

Useful information ............................ 398

Operating and road safety ............... 398
Tyre pressures .................................. 400
Tyre pressure table for single tyres
............................................................. 402
Tyre pressure table for twin tyres .. 407

Wheels and tyres

398 Operating and road safety

Useful information where speed is not adapted to suit the driving

conditions. There is a risk of accident.
These Operating Instructions describe all the If the tyre pressure is too high or too low, tyres
models and standard and optional equipment may exhibit different levels of wear at differ-
of your vehicle that were available at the time ent locations on the tyre tread. Thus, you
of going to print. Country-specific differences should regularly check the tread depth and
are possible. Bear in mind that your vehicle the condition of the tread across the entire
may not be equipped with all the functions width of all tyres.
described. This also applies to safety-relevant Minimum tyre tread depth for:
systems and functions.
Rsummer tyres: 3 mm
Read the information on qualified specialist
RM+S tyres: 4 mm
workshops (Y page 30).
For safety reasons, replace the tyres before
the legally prescribed limit for the minimum
Operating and road safety tyre tread depth is reached.

Regular checking of wheels and tyres G WARNING

Tyres are of particular importance to the oper- There is a danger of aquaplaning occurring,
ating and road safety of the vehicle. even if you are driving slowly and your tyres
Regularly check the following: have sufficient tread depth, depending on the
depth of water on the road. There is a risk of
Rtyre pressure (Y page 400)
an accident.
Wheels and tyres

Rtyre tread
For this reason, avoid tyre ruts and brake
Rtyre condition
carefully.
A tyre dealer, a qualified specialist workshop
or any Mercedes-Benz Service Centre will be
able to provide further information about the:
Rtyre load-bearing capacity (LI, Load Index)
Rspeed rating (maximum permissible tyre
speed)
Rtyre age
Rcauses and consequences of tyre wear
Rmeasures to be taken in the event of tyre
damage
Rtypes of tyre for specific regions, areas of
operation or conditions of vehicle use
Rinterchangeability of tyres, etc.

Tyre tread : Example: tyre tread wear indicator

G WARNING A specified minimum tread depth is a legal
Insufficient tyre tread will reduce tyre trac- requirement for all tyres. Observe the legal
tion. The tyre is no longer able to dissipate requirements for the country you are cur-
water. This means that on wet road surfaces, rently in.
the risk of aquaplaning increases, in particular
 Operating and road safety 399

The less tyre tread depth remaining, the Tyre age

poorer the road grip and handling character-
istics of the vehicle, particularly if the road
surface is wet or snow-covered.
A tyre has reached the minimum tread depth
when the tread wear indicator (arrow) is flush
with the tyre tread.
For safety reasons, have the tyres replaced
before the legally specified minimum tread
depth is reached.

Tyre condition Tyres age, even if they are used infrequently

Important safety notes or not at all. Operating and road safety dimin-
ish with age. For this reason have tyres more
G WARNING than 6 years old checked and, if necessary,
Damaged tyres can cause tyre inflation pres- replaced at a qualified specialist workshop.
sure loss. As a result, you could lose control of This also applies to the spare wheel.
your vehicle. There is a risk of accident. Date of manufacture : informs you about
Check the tyres regularly for signs of damage the age of a tyre. The first and second digits
and replace any damaged tyres immediately. refer to the week of manufacture, starting

Wheels and tyres

with "01" for the first calendar week of the
Before starting your journey, check the tyre year. The third and fourth digits refer to the
condition for: year of manufacture. A tyre that is marked
Rexternal damage "3808", for example, was thus manufactured
in the 38th calendar week of 2008.
Rforeign objects in the tyre tread
Rforeign objects between the tyres (on vehi-
cles with twin tyres) Tyre load-bearing capacity, tyre speed
Rcracks or bulges rating and tyre types
Runeven tread wear or excessive wear on
G WARNING
one side
Exceeding the stated tyre load-bearing capa-
Tyre damage city and the approved maximum speed could
lead to tyre damage or the tyre bursting. There
Tyre damage can, for example, be caused by: is a risk of accident.
Rthe operating conditions of the vehicle Therefore, only use tyre types and sizes
Rtyre ageing approved for your vehicle model. Observe the
tyre load rating and speed rating required for
Rkerbs
your vehicle.
Rforeign objects
Rinsufficient or excessive tyre pressure In particular, observe the permissible tyre
Rweather conditions and environmental fac- specifications for the country you are cur-
tors rently in. These requirements may stipulate a
Rcontact with oil, grease, fuel
specific tyre type for your vehicle. In addition,
the use of specific tyre types may be advisa-
ble for certain regions and areas of operation.

Z
400 Tyre pressures

You can find further information regarding Tyre pressures

tyres at specialist tyre retailers, at qualified
specialist workshops or at any Mercedes- Important safety notes
Benz Service Centre.
G WARNING
Underinflated or overinflated tyres pose the
Replacing the tyres and retreaded following risks:
tyres Rthe tyres may burst, especially as the load
and vehicle speed increase.
Replacing tyres
Rthe tyres may wear excessively and/or
If replacing the standard tyres of your vehicle, unevenly, which may greatly impair tyre
use only the tyre and wheel rim sizes traction.
approved for your vehicle type. A tyre dealer, Rthe driving characteristics, as well as steer-
a qualified specialist workshop or any ing and braking, may be greatly impaired.
Mercedes-Benz Service Centre will be able to There is a risk of an accident.
provide further information.
Observe the recommended tyre pressure and
After replacing your tyres, carry with you the check the tyre pressure of all the tyres includ-
vehicle's type approval for the new tyre and ing the spare wheel:
wheel rim size as well as the manufacturer's
certification showing that the tyres may be Rat least once a month
used on the vehicle. Observe the legal Rwhen the load changes
requirements for the country you are cur- Rbefore embarking on a longer journey
Wheels and tyres

rently in. Any Mercedes-Benz Service Centre Rfor changed operating conditions, e.g. off-
can provide information on obtaining a man- road driving.
ufacturer's certificate.
If necessary, correct the tyre pressure.
After replacing your tyres, it may be neces-
sary for adjustments to be made to the con- G WARNING
trol unit modules. If necessary, have these
The tyre temperature and pressure increase
adjustments carried out at a qualified spe-
when the vehicle is in motion. Reducing the
cialist workshop.
pressure of warm tyres leads to a tyre pres-
Vehicles with electric power steering: if sure that is too low when the tyres have
you change the mechanical axle stops, e.g. cooled. If the tyre pressure is too low, it may
during tyre replacement, have the electric cause the tyre to burst, especially when the
power steering taught in at a qualified spe- load or speed increases. There is a risk of an
cialist workshop. accident.
You should never reduce the pressure of
Retreaded tyres warm tyres. Observe the specified tyre pres-
Mercedes-Benz recommends that you only sure.
use tyres and wheels which have been tested
and approved by Mercedes-Benz specifically For every 10 † change in air temperature, the
for your vehicle. tyre pressure changes by around 30 to 40 kPa
(0.3 to 0.4 bar/4.4 to 5.8 psi). Bear this tem-
perature-related change in tyre pressure in
mind when checking tyre pressures indoors,
where the temperature may be higher than
the outside temperature.
 Tyre pressures 401

Example:
Rroom temperature is approximately 20 †.
Routside temperature is approximately 0 †.
Rset the tyre pressure to around 60 to
80 kPa (0.6 to 0.8 bar/8.7 to 11.6 psi)
above that prescribed in the tyre pressure
table.
The tyre pressures are specified according to
E.T.R.T.O. standards and may deviate from
the manufacturer's specifications.
Also observe the general notes in the "Oper- Example: tyre size and load bearing index
ating and road safety" section (Y page 398). X Read off tyre size : and load bearing
Before starting your journey, check the speci- index ; on the tyre.
fied tyre pressures while the tyres are cold. If load bearing index ; is comprised of two
If the tyre pressure is too low, it leads to: numbers, the first number before the "/" is for
Rexcessive build-up of heat in the tyres single tyres and the second number, after the
"/", is for twin tyres.
Rincreased tyre wear
Raltered driving stability
Rincreased fuel consumption

Wheels and tyres

Excessive tyre pressure leads to:
Ran increased braking distance
Ra deterioration in tyre traction
Rincreased tyre wear
The valve caps on the tyre valves protect the
valve cores from moisture and dirt. Always
screw the valve caps tightly onto the tyre
valves. Example: permissible axle load
In the event of repeated pressure loss in the X Determine permissible axle load = by
tyres, external damage or leaking tyre valves checking the vehicle identification plate.
may be the cause. Check the condition of the
X Select the tyre pressure table which corre-
tyres regularly.
sponds to the tyre type.
RSingle tyres (Y page 402)
Determining tyre pressures RTwin tyres (Y page 407)

! Correct the tyre pressures for each axle X Look for tyre size : in the tyre pressure

on the vehicle. table.

X Search for load bearing index ; which cor-
responds to the tyre type next to the tyre
size in the tyre pressure table.
X Find maximum permissible axle load = in
the tyre pressure table and read off the tyre
pressure.

Z
402 Tyre pressure table for single tyres

Tyre pressure table for single tyres

Tyres 215/75 R 17.5

Load bearing index 135
RAxle load 4,300 kg: 850 kPa (8.5 bar/123 psi)
Tyres 12 R 20
Load bearing index 154
RAxle load 6,300 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 6,700 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 7,100 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,500 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 8,000 kg: 900 kPa (9.0 bar/131 psi)
Tyres 14 R 20
Load bearing index 160
RAxle load 6,300 kg: 450 kPa (4.50 bar/65 psi)
RAxle load 6,700 kg: 475 kPa (4.75 bar/69 psi)
RAxle load 7,100 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 7,500 kg: 575 kPa (5.75 bar/83 psi)
Wheels and tyres

RAxle load 8,000 kg: 600 kPa (6.0 bar/87 psi)

RAxle load 9,000 kg: 700 kPa (7.0 bar/102 psi)
Load bearing index 164
RAxle load 6,300 kg: 425 kPa (4.25 bar/62 psi)
RAxle load 6,700 kg: 450 kPa (4.50 bar/65 psi)
RAxle load 7,100 kg: 500 kPa (5.0 bar/72 psi)
RAxle load 7,500 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 8,000 kg: 575 kPa (5.75 bar/83 psi)
RAxle load 9,000 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 9,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 10,000 kg: 750 kPa (7.5 bar/109 psi)
Tyres 365/85 R 20
Load bearing index 164
RAxle load 6,300 kg: 450 kPa (4.50 bar/65 psi)
RAxle load 6,700 kg: 475 kPa (4.75 bar/69 psi)
RAxle load 7,100 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 7,500 kg: 575 kPa (5.75 bar/83 psi)
RAxle load 8,000 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 9,000 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 9,500 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 10,000 kg: 800 kPa (8.0 bar/116 psi)
Tyres 11 R 22.5
 Tyre pressure table for single tyres 403

Load bearing index 148

RAxle load 6,300 kg: 850 kPa (8.5 bar/123 psi)
Tyres 12 R 22.5
Load bearing index 152
RAxle load 6,300 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 6,700 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,100 kg: 850 kPa (8.5 bar/123 psi)
Tyres 13 R 22.5
Load bearing index 154
RAxle load 6,300 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 6,700 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 7,100 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,500 kg: 850 kPa (8.5 bar/123 psi)
Load bearing index 156
RAxle load 6,300 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 6,700 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 7,100 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 7,500 kg: 825 kPa (8.25 bar/120 psi)

Wheels and tyres

RAxle load 8,000 kg: 875 kPa (8.75 bar/127 psi)
Tyres 275/70 R 22.5
Load bearing index 148
RAxle load 6,300 kg: 900 kPa (9.0 bar/131 psi)
Tyres 295/60 R 22.5
Load bearing index 150
RAxle load 6,300 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 6,700 kg: 900 kPa (9.0 bar/131 psi)
Tyres 295/80 R 22.5
Load bearing index 150
RAxle load 6,300 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 6,700 kg: 800 kPa (8.0 bar/116 psi)
Load bearing index 152
RAxle load 6,300 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 6,700 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,100 kg: 850 kPa (8.5 bar/123 psi)
Load bearing index 154
RAxle load 6,300 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 6,700 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 7,100 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,500 kg: 850 kPa (8.5 bar/123 psi)

Z
404 Tyre pressure table for single tyres

Tyres 305/70 R 22.5

Load bearing index 150
RAxle load 6,300 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 6,700 kg: 850 kPa (8.5 bar/123 psi)
Load bearing index 152
RAxle load 6,300 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 6,700 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 7,100 kg: 900 kPa (9.0 bar/131 psi)
Tyres 315/60 R 22.5
Load bearing index 152
RAxle load 6,300 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 6,700 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 7,100 kg: 900 kPa (9.0 bar/131 psi)
Load bearing index 154
RAxle load 6,300 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 6,700 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,100 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 7,500 kg: 900 kPa (9.0 bar/131 psi)
Wheels and tyres

Tyres 315/70 R 22.5

Load bearing index 154
RAxle load 6,300 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 6,700 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,100 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 7,500 kg: 900 kPa (9.0 bar/131 psi)
Load bearing index 156
RAxle load 6,300 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 6,700 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 7,100 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 7,500 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 8,000 kg: 900 kPa (9.0 bar/131 psi)
Tyres 315/80 R 22.5
Load bearing index 154
RAxle load 6,300 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 6,700 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 7,100 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 7,500 kg: 825 kPa (8.25 bar/120 psi)
Load bearing index 156
RAxle load 6,300 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 6,700 kg: 700 kPa (7.0 bar/102 psi)
 Tyre pressure table for single tyres 405

RAxle load 7,100 kg: 750 kPa (7.5 bar/109 psi)

RAxle load 7,500 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 8,000 kg: 850 kPa (8.5 bar/123 psi)
Tyres 355/50 R 22.5
Load bearing index 154
RAxle load 6,300 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 6,700 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 7,100 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 7,500 kg: 900 kPa (9.0 bar/131 psi)
Load bearing index 156
RAxle load 6,300 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 6,700 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 7,100 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 7,500 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 8,000 kg: 900 kPa (9.0 bar/131 psi)
Tyres 365/70 R 22.5
Load bearing index 162
RAxle load 6,300 kg: 550 kPa (5.5 bar/80 psi)

Wheels and tyres

RAxle load 6,700 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 7,100 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 7,500 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 8,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 9,000 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 9,500 kg: 900 kPa (9.0 bar/131 psi)
Tyres 375/50 R 22.5
Load bearing index 156
RAxle load 6,300 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 6,700 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 7,100 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 7,500 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 8,000 kg: 900 kPa (9.0 bar/131 psi)
Tyres 385/55 R 22.5
Load bearing index 158
RAxle load 6,300 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 6,700 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 7,100 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 7,500 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 8,000 kg: 800 kPa (8.0 bar/116 psi)

Z
406 Tyre pressure table for single tyres

Load bearing index 160

RAxle load 6,300 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 6,700 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 7,100 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 7,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 8,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 9,000 kg: 900 kPa (9.0 bar/131 psi)
Tyres 385/65 R 22.5
Load bearing index 158
RAxle load 6,300 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 6,700 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 7,100 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 7,500 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 8,000 kg: 800 kPa (8.0 bar/116 psi)
Load bearing index 160
RAxle load 6,300 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 6,700 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 7,100 kg: 675 kPa (6.75 bar/98 psi)
Wheels and tyres

RAxle load 7,500 kg: 725 kPa (7.25 bar/105 psi)

RAxle load 8,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 9,000 kg: 900 kPa (9.0 bar/131 psi)
Load bearing index 162
RAxle load 8,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 9,000 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 9,500 kg: 900 kPa (9.0 bar/131 psi)
Load bearing index 164
RAxle load 8,000 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 9,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 9,500 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 10,000 kg: 900 kPa (9.0 bar/131 psi)
Tyres 425/65 R 22.5
Load bearing index 165
RAxle load 6,300 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 6,700 kg: 550 kPa (5.5 bar/80 psi)
RAxle load 7,100 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 7,500 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 8,000 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 9,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 9,500 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 10,000 kg: 825 kPa (8.25 bar/120 psi)
 Tyre pressure table for twin tyres 407

Tyres 495/45 R 22.5

Load bearing index 169
RAxle load 9,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 10,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 10,500 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 11,500 kg: 900 kPa (9.0 bar/131 psi)
Tyres 12 R 24
Load bearing index 160
RAxle load 6,300 kg: 550 kPa (5.5 bar/80 psi
RAxle load 6,700 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 7,100 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 7,500 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 8,000 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 9,000 kg: 850 kPa (8.5 bar/123 psi)
Tyres 325/95 R 24
Load bearing index 162
RAxle load 6,300 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 6,700 kg: 550 kPa (5.5 bar/80 psi)

Wheels and tyres

RAxle load 7,100 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 7,500 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 8,000 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 9,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 9,500 kg: 850 kPa (8.5 bar/123 psi)

Tyre pressure table for twin tyres

Tyres 12 R 20
Load bearing index 150
RAxle load 9,500 kg: 550 kPa (5.5 bar/80 psi)
RAxle load 10,000 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,500 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 11,500 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 12,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 12,300 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 12600 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 13,000 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 13,400 kg: 850 kPa (8.5 bar/123 psi)
Tyres 14 R 20

Z
408 Tyre pressure table for twin tyres

Load bearing index 157

RAxle load 9,500 kg: 350 kPa (3.5 bar/51 psi)
RAxle load 10,000 kg: 375 kPa (3.75 bar/54 psi)
RAxle load 10,500 kg: 400 kPa (4.0 bar/58 psi)
RAxle load 11,500 kg: 450 kPa (4.5 bar/65 psi)
RAxle load 12,000 kg: 475 kPa (4.75 bar/69 psi)
RAxle load 12,300 kg: 475 kPa (4.75 bar/69 psi)
RAxle load 12,600 kg: 500 kPa (5.0 bar/72 psi)
RAxle load 13,000 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 13,400 kg: 550 kPa (5.5 bar/80 psi)
RAxle load 16,000 kg: 675 kPa (6.75 bar/98 psi)
Load bearing index 160
RAxle load 9,500 kg: 350 kPa (3.5 bar/51 psi)
RAxle load 10,000 kg: 375 kPa (3.75 bar/54 psi)
RAxle load 10,500 kg: 375 kPa (3.75 bar/54 psi)
RAxle load 11,500 kg: 425 kPa (4.25 bar/62 psi)
RAxle load 12,000 kg: 450 kPa (4.5 bar/65 psi)
RAxle load 12,300 kg: 475 kPa (4.75 bar/69 psi)
Wheels and tyres

RAxle load 12,600 kg: 475 kPa (4.75 bar/69 psi)

RAxle load 13,000 kg: 500 kPa (5.0 bar/72 psi)
RAxle load 13,400 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 16,000 kg: 650 kPa (6.5 bar/94 psi)
Tyres 11 R 22.5
Load bearing index 145
RAxle load 9,500 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 10,000 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 10,500 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 11,500 kg: 850 kPa (8.5 bar/123 psi)
Tyres 12 R 22.5
Load bearing index 148
RAxle load 9,500 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,000 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 10,500 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 11,500 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 12,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 12,300 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 12,600 kg: 850 kPa (8.5 bar/123 psi)
Tyres 13 R 22.5
 Tyre pressure table for twin tyres 409

Load bearing index 150

RAxle load 9,500 kg: 575 kPa (5.75 bar/83 psi)
RAxle load 10,000 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 10,500 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 11,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 12,000 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 12,300 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 12,600 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 13,000 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 13,400 kg: 875 kPa (8.75 bar/127 psi)
Tyres 275/70 R 22.5
Load bearing index 145
RAxle load 9,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 10,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 10,500 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 11,500 kg: 900 kPa (9.0 bar/131 psi)
Tyres 295/55 R 22.5
Load bearing index 145

Wheels and tyres

RAxle load 9,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 10,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 10,500 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 11,500 kg: 900 kPa (9.0 bar/131 psi)
Tyres 295/60 R 22.5
Load bearing index 146
RAxle load 9,500 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 10,000 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 10,500 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 11,500 kg: 875 kPa (8.75 bar/127 psi)
RAxle load 12,000 kg: 900 kPa (9.0 bar/131 psi)
Load bearing index 147
RAxle load 9,500 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 10,000 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 10,500 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 11,500 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 12,000 kg: 875 kPa (8.75 bar/127 psi)
RAxle load 12,300 kg: 900 kPa (9.0 bar/131 psi)
Tyres 295/80 R 22.5
Load bearing index 145
RAxle load 9,500 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 10,000 kg: 675 kPa (6.75 bar/98 psi)
Z
410 Tyre pressure table for twin tyres

RAxle load 10,500 kg: 725 kPa (7.25 bar/105 psi)

RAxle load 11,500 kg: 800 kPa (8.0 bar/116 psi)
Load bearing index 148
RAxle load 9,500 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,000 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 10,500 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 11,500 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 12,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 12,300 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 12,600 kg: 850 kPa (8.5 bar/123 psi)
Load bearing index 149
RAxle load 9,500 kg: 575 kPa (5.75 bar/83 psi)
RAxle load 10,000 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 10,500 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 11,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 12,300 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 12,600 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 13,000 kg: 850 kPa (8.5 bar/123 psi)
Wheels and tyres

Tyres 305/70 R 22.5

Load bearing index 148
RAxle load 9,500 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,000 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 10,500 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 11,500 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 12,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 12,300 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 12,600 kg: 850 kPa (8.5 bar/123 psi)
Load bearing index 150
RAxle load 9,500 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,000 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 10,500 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 11,500 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 12,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 12,300 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 12,600 kg: 850 kPa (8.5 bar/123 psi)
Tyres 315/45 R 22.5
Load bearing index 145
RAxle load 9,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 10,000 kg: 750 kPa (7.5 bar/109 psi)
 Tyre pressure table for twin tyres 411

RAxle load 10,500 kg: 800 kPa (8.0 bar/116 psi)

RAxle load 11,500 kg: 900 kPa (9.0 bar/131 psi)
Tyres 315/60 R 22.5
Load bearing index 148
RAxle load 9,500 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 10,000 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 10,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 11,500 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 12,000 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 12,300 kg: 875 kPa (8.75 bar/127 psi)
RAxle load 12,600 kg: 900 kPa (9.0 bar/131 psi)
Tyres 315/70 R 22.5
Load bearing index 148
RAxle load 9,500 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,000 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 10,500 kg: 700 kPa (7.0 bar/102 psi)
RAxle load 11,500 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 12,000 kg: 800 kPa (8.0 bar/116 psi)

Wheels and tyres

RAxle load 12,300 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 12,600 kg: 850 kPa (8.5 bar/123 psi)
Load bearing index 150
RAxle load 9,500 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,000 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 10,500 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 11,500 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 12,000 kg: 800 kPa (8.0 bar/116 psi)
RAxle load 12,300 kg: 825 kPa (8.25 bar/120 psi)
RAxle load 12,600 kg: 850 kPa (8.5 bar/123 psi)
RAxle load 13,000 kg: 875 kPa (8.75 bar/127 psi)
RAxle load 13,400 kg: 900 kPa (9.0 bar/131 psi)
Tyres 315/80 R 22.5
Load bearing index 150
RAxle load 9,500 kg: 575 kPa (5.75 bar/83 psi)
RAxle load 10,000 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 10,500 kg: 650 kPa (6.5 bar/94 psi)
RAxle load 11,500 kg: 725 kPa (7.25 bar/105 psi)
RAxle load 12,000 kg: 750 kPa (7.5 bar/109 psi)
RAxle load 12,300 kg: 775 kPa (7.75 bar/112 psi)
RAxle load 12,600 kg: 800 kPa (8.0 bar/116 psi)

Z
412 Tyre pressure table for twin tyres

RAxle load 13,000 kg: 825 kPa (8.25 bar/120 psi)

RAxle load 13,400 kg: 850 kPa (8.5 bar/123 psi)
Tyres 12 R 24
Load bearing index 156
RAxle load 9,500 kg: 450 kPa (4.5 bar/65 psi)
RAxle load 10,000 kg: 475 kPa (4.75 bar/69 psi)
RAxle load 10,500 kg: 500 kPa (5.0 bar/72 psi)
RAxle load 11,500 kg: 575 kPa (5.75 bar/83 psi)
RAxle load 12,000 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 12,300 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 12,600 kg: 625 kPa (6.25 bar/91 psi)
RAxle load 13,000 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 13,400 kg: 675 kPa (6.75 bar/98 psi)
RAxle load 16,000 kg: 850 kPa (8.5 bar/123 psi)
Tyres 325/95 R 24
Load bearing index 160
RAxle load 9,500 kg: 375 kPa (3.75 bar/54 psi)
RAxle load 10,000 kg: 425 kPa (4.25 bar/62 psi)
Wheels and tyres

RAxle load 10,500 kg: 425 kPa (4.25 bar/62 psi)

RAxle load 11,500 kg: 500 kPa (5.0 bar/72 psi)
RAxle load 12,000 kg: 525 kPa (5.25 bar/76 psi)
RAxle load 12,300 kg: 550 kPa (5.5 bar/80 psi)
RAxle load 12,600 kg: 550 kPa (5.5 bar/80 psi)
RAxle load 13,000 kg: 575 kPa (5.75 bar/83 psi)
RAxle load 13,400 kg: 600 kPa (6.0 bar/87 psi)
RAxle load 16,000 kg: 725 kPa (7.25 bar/105 psi)
 413

Useful information ............................ 414

Vehicle identification plate/axle
loads .................................................. 414
Engine data plate .............................. 415
Operating data .................................. 415
Compressed-air reservoir ................ 417

Technical data
414 Vehicle identification plate/axle loads

Useful information Information on the vehicle identifica-

tion plate
These Operating Instructions describe all the
models and standard and optional equipment
of your vehicle that were available at the time
of going to print. Country-specific differences
are possible. Bear in mind that your vehicle
may not be equipped with all the functions
described. This also applies to safety-relevant
systems and functions.
Read the information on qualified specialist
workshops (Y page 30).

Example: vehicle identification plate

Vehicle identification plate/axle : Vehicle manufacturer (Daimler AG)
loads ; EU general operating permit number (only
Vehicle identification plate and vehi- in certain countries)
cle identification number (VIN) = Vehicle identification number (VIN)
? Maximum permissible gross vehicle
weight (kg)
Maximum permissible vehicle combina-
tion gross weight (kg)
A Permissible axle loads of axles 1 to 4 (kg)
B Permissible load of axle group T (kg)
Flue gas coefficient
Technical data

C
D Rear axle ratio
E Basic headlamp setting
F Type of vehicle/vehicle model designa-
tion
You will find the technically permissible gross
vehicle combination weight on the vehicle
identification plate or in the COC documents.
Note that, in ADR mode, the technically per-
Vehicle identification number (VIN) and vehicle missible gross vehicle combination weight is
identification plate (example: Actros cab with flat set by the continuous brake effect of the vehi-
floor) cle. You will find this value in your ADR cer-
Vehicle identification plate : is located in tification. If you require further assistance,
the door frame on the co-driver’s side. Vehicle consult a Mercedes-Benz Service Centre.
identification number (VIN) ; is stamped on
the longitudinal frame member in the right
wheel housing.
 Operating data 415

Engine data plate Reservoir pressures in bar

External compressed-air 11.0 - 12.5
source (charging the
compressed-air system)
Remaining pressure circuits 7.0 - 8.7

Engine
OM 936 engine with 7698 cm3

Idling speed Approx-

Example: OM 471 engine imately
Engine data plate : is located at the rear of 600 rpm
the crankcase on the left-hand side when Engine brake (operating Approx-
viewed in the direction of travel. range) imately
Engine data plate : contains the following 1000 -
information: 3000 rpm
RManufacturer
Engine speed range of max- Approx-
REngine type imum torque imately
REngine model series 1200 -
REngine number 1600 rpm
Engine speed of maximum Approx-

Technical data
power output imately
Operating data
2200 rpm
Compressed-air system
OM 470 engine with 10667 cm3 and OM 471
Minimum pressures in bar
engine with 12809 cm3
Brake circuit 1 6.8
Idling speed Approx-
Brake circuit 2 6.8 imately 500 -
550 rpm
Brake circuit 3 5.5
Engine brake (operating Approx-
Transmission circuit/clutch 5.5 range) imately
circuit 1000 -
Spring-loaded parking 6.5 2300 rpm
brake cylinder release pres- Engine speed at maximum Approx-
sure torque imately
1100 rpm
Reservoir pressures in bar Engine speed of maximum Approx-
Service brake 10.5 - 13.6 power output imately
1800 rpm
Pneumatic suspension 10.5 - 15.5
416 Operating data

OM 473 engine with 15569 cm3 Tyre pressures

Idling speed Approx- Tyre pressure table for sin- (Y page
imately gle tyres 402)
500 rpm
Tyre pressure table for twin (Y page
Engine brake (operating Approx- tyres 407)
range) imately
1000 - Permissible difference in 20 kPa
2300 rpm pressure between tyres on (0.2 bar/
an axle 3 psi)
Engine speed at maximum Approx-
torque imately Maximum permissible air 1000 kPa
1,100 rpm pressure for inflating tyres (10.0 bar/
145 psi)
Engine speed of maximum Approx-
power output imately
1,600 rpm Wheel nut tightening torques
The tightening torques for the wheel nuts are
Operating temperature identical for light-alloy and steel wheels.
Wheel nuts M22x1.5 for 600 Nm
OM 936 20", 22.5" and 24" wheels
Normal operation Approx- 10-hole mounting
imately 80 -
Wheel nuts M18x1.5 for 400 Nm
100 †
17.5" wheels
Technical data

Maximum permissible cool- Up to 6-hole mounting

ant temperature in opera- 103 †
tion Wheel nut caps 60 Nm

Automatically reduced From 103 †

engine power output Spring-loaded cylinder

Release torque of the Maximum

OM 470, OM 471, OM 473
spring-loaded parking brake 70 Nm
Normal operation Approx- cylinder release screw
imately 85 -
Tightening torque of the Maximum
105 †
spring-loaded parking brake 35 Nm
Maximum permissible cool- Until 110 † cylinder release screw
ant temperature in opera-
Release pressure (with Minimum
tion
external source of 6.5 bar
Automatically reduced From 110 † compressed air)
engine power output
 Compressed-air reservoir 417

Level control — only to be cleaned using non-alkaline

cleaning agents (aluminium reservoirs).
Fill the air suspension via Maximum — to have the interior visible through the
connection 28 on the elec- 12.5 bar threaded connections.
tronic air processing unit — to be emptied at regular intervals to pre-
vent the accumulation of condensation
(drainage ring nut at the lowest point of
Compressed-air reservoir the reservoir).
Information on the compressed-air e – to require no maintenance if Item d is
reservoir complied with.
f – no welding, heat treatment or other oper-
For first-time buyers and other users
ation relevant to safety is to be per-
Accompanying documentation in accordance formed on the pressure-bearing walls of
with Directive 2009/105/EC of the European the reservoir (casing, base, ring nuts).
Parliaments and Council and in accordance
g – the internal supply pressure may exceed
with the technical standard EN 286-2.
maximum operating pressure Ps by not
The reservoir is: more than 10% for a brief period.
a – only intended for use in compressed-air
Daimler AG
systems and auxiliary equipment on
motor vehicles and their trailers, and is
only to be used to hold compressed air.
Compressed-air reservoir identifica-
b to be marked for identification with a tion plates
– works number and the reservoir manu-
facturer’s name, together with the prin- Aluminium reservoir
cipal operating data and the EC mark; see

Technical data
the identification plate or engravings
directly on the reservoir wall.
c – to be manufactured with a "Declaration
of conformity" in accordance with Arti-
cle 12 of Directive 2009/105/EC.
d to be secured to the vehicle by retaining
– straps (clamps).
In the case of aluminium reservoirs, con-
tact surfaces must be designed to inhibit
corrosion or mechanical damage. Secur-
ing straps are to be positioned in such a Example: identification plate on the aluminium res-
ervoir
way that they do not come in contact with
the base connecting seams; the reservoir : Manufacturer: SAG (Austria)
is not to be subjected to any stress that ; MB part number
would jeopardise operating safety. = Maximum operating pressure (bar)
Coatings applied to aluminium reservoirs ? Volume (litres)
must not contain lead, and the top coat of A Testing establishment code number
paint must only be applied over a suitable B Year of construction
primer coat. Steel threaded connections
for aluminium reservoirs must have a cor-
rosion-proof coating.
418 Compressed-air reservoir

Steel reservoir

Example: identification plate on the steel reservoir

: Manufacturer:
frauenthal automotive
Erhard
; MB part number
= Maximum operating pressure (bar)
? Volume (litres)
A Year of construction
B Testing establishment code number
Technical data
419
420
Imprint
Internet

Further information on Mercedes-Benz vehi-

cles and Daimler AG can be found on the
Internet at:
http://www.mercedes-benz.com
http://www.daimler.com

FleetBoard® Support

If you have questions concerning your Fleet-

Board® TiiRec or DispoPilot.mobile/DispoPi-
lot.guide, contact FleetBoard® Support:
Telephone +49 711 17 91 999
Address Daimler FleetBoard® GmbH,
HPC: Z400, D-70546 Stuttgart
Internet www.fleetboard.com

Documentation team

Should you have any questions or sugges-

tions regarding this manual, you can reach
the technical documentation team at the fol-
lowing address:
Daimler AG, HPC: CAC, Customer Service,
70546 Stuttgart, Germany
© Daimler AG: reprinting, translation and

reproduction, even in part, is forbidden with-

out written permission from Daimler AG.

Vehicle manufacturer

Daimler AG
Mercedesstraße 137
70327 Stuttgart
Germany

As at 18.10.2013
 É96058489963ËÍ
9605848996

Order no. 6462 9519 02 Part no. 960 584 89 96 Edition 04-14