des-Benz 210 – fuse and relay
MercedesComments: 6
The Mercedes-Benz 210 represents the second generation of E-class passenger cars that were
produced in 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 and 2003 with the W210 sedan
and S210 station wagon. During this time, the model has been restyled. In this material you will
find information about the location of all electronic control units, a detailed description of the
fuses and relays of the Mercedes 210 with box diagrams, photo examples of performance and
their locations. Select the cigarette lighter fuse.
The location of the blocks and elements in them may differ from the one shown and depends on
the year of manufacture and the level of electrical equipment of your car. Check the information
with your diagrams on the box cover.
Contents
1 Location
2 Engine compartment
2.1 Main fuse and relay box
2.2 Additional fuse and relay box
3 Passenger compartment
3.1 Fuse box in the instrument panel
3.1.1 LHD
3.1.2 RHD
3.2 Fuse box under rear seat
Location
General layout of electronic control units
Assignment
1 Air conditioning control unit – in the heater control panel
2 Antenna signal booster – under the rear shelf
3 Anti-theft control unit (combined with a vacuum pump) – under the rear seat
4 Vehicle Tilt Sensor (Anti-Theft System) – Under Rear Seat
5 Anti-theft horn (1997)
6 Anti-theft horn (1998) – Behind wheel arch
7 Volume change sensor (anti-theft system), left (some models) – B-pillar
8 Volume change sensor (anti-theft system), right (some models) – B-pillar
9 Volume change sensors (anti-theft system) (some models)
10 Audio output amplifier
11 Additional heater control unit
12 Battery – under rear seat
13 Central locking control unit (infrared)
14 Central locking signal sensor (infrared) – in the interior rear-view mirror
15 Control unit (in case of accident) (with TELE AlD) – left side of the luggage compartment
16 Diagnostic connector (DLC) 1
17 Diagnostic Connector (DLC) 2(2001)
18 Door electrical control unit, driver’s side (03/97^)
19 Door Electrical Control Module, Driver Side (Rear) (03/97^)
20 Door electrical control unit, passenger side (03/97)
21 Door Electrical Control Module, Passenger Side (Rear) (03/97)
22 Power window control unit – in the center console switch box
23 Fuse/Relay Box, Instrument Panel
24 Fuse/Relay Box, Engine Compartment 1
25 Fuse/Relay Box, Engine Compartment 2
26 Fuse/Relay Box, Under Rear Seat
27 Headlight control unit, left (models with xenon headlights)
28 Headlight control unit, right (models with xenon headlights)
29 Headlight range control unit (models with xenon headlights)
30 Horns – behind the front bumper
31 Ignition lock control unit
32 Electronic immobilizer control unit – combined with an ignition switch control unit
34 Lighting control unit – in the headlight switch
35 Multifunctional control unit 1 (02/97) – functions: Central locking, power windows,
sunroof (central locking system) – (03/97), alarm, rear window defroster, direction indicators,
steering column adjustment mechanism, windshield wipers
36 Multifunction control unit 2 (03/97) – functions: Interior lamps, sunroof, vanity mirror
lamps
37 Navigation system control unit – in the audio unit
38 Ambient temperature sensor
39 Parking system control unit (06/99)
40 Parking system control unit (07/99)
41 Rain sensor – in the interior rear view mirror
42 Relay Bank 1 – Includes: ABS Relay, Engine Management System Relay, Cooling Fan
Motor Relay, Fuel Pump Relay, Exhaust Air Pump Relay, Throttle Control Relay (^02/97)
43 Relay Bank 2 – Includes: Exhaust Air Pump Relay, Starter Relay, Overload/Surge
Protective Relay (ABS)(03/97)
44 Left front seat power control unit
45 Right front seat power control unit
46 Seat heating control unit, front – in the switch block
47 Seat heating control unit, rear – under the rear seat
48 Side impact sensor, left – some models, under the front seat
49 Side impact sensor, left – some models, under the rear seat
50 Side impact sensor, right – some models, under the front seat
51 Side impact sensor, right – some models, under the rear seat
52 SRS electronic control unit
53 Steering column lock control unit
54 Body height sensor, front (models with xenon headlights)
55 Body height sensor, rear (models with xenon headlights)
56 Telephone network connection module (06/98) – left side of the luggage compartment
57 Telephone interface control unit (06/98) – left side of the luggage compartment
59 Electronic gearbox control unit
60 Shift control unit – automatic transmission selector
61 Voice Activation Unit – LH Trunk
Engine compartment
Main fuse and relay box
The main fuse and relay box is located under the hood on the left side behind the protective
cover. Consists of two departments (fuses and relays).
Photo – diagram
Designation of fuses
F1 (15A) Cigarette lighter (via ignition switch), ashtray light – 05/99
F2 (15A) Cigarette lighter (via ignition switch), ashtray light – 06/99
F3 (15A) Combination switch (low beam, high beam, windshield wiper/washer, rear
window washer), glove box lamp
F4 (10A) Air conditioning/heating system, clock, headlights on warning buzzer, steering
wheel position sensor (06/99)
F5 (15A) Alarm (with trailer) – 02/970
F6 (15A) Cigarette lighter (from battery) – 05/99
F7 (15A/20A) Instrument cluster, air conditioning/heating system, relay box (engine
compartment)
F8 (7.5A) Air conditioning / heater control unit – 02/97
F9 (15A) Steering lock – 03/97
F10 (7.5A) Rear window cleaner / washer – 02/97
F11 (15A) Audio/Navigation System, Rear Room Lamp, Power Seat (03/97), Accessory Power
Connector (Luggage Compartment) – Estate
F12 (10A) Rear window wiper (some models), seat heaters, seat belt drive (comfort),
sunblind
F13 (10A) Audio / navigation system, SRS system, control unit (in case of accident)
F14 (7.5A) Infrared central locking receiver, multifunctional control unit, parking system –
^02/97
F15 (15A) Automatic transmission control system, variable valve timing actuator (s) (engine
111), diagnostic connector, fuel vapor recovery system (gasoline), glow plug control unit,
headlight range control – 02/97
F16 (15A) Power door mirrors, interior rear view mirror, windshield washer jet heaters –
02/97
F17 (10A) Infrared receiver. Central locking, steering wheel position sensor -^02/97
F18 (20A) Door Function Control Module, Driver’s Side (Rear) (Power Window, Position
Lamp/Door Light) – 03/97—>
F19 (10A/15A) Cruise control, ignition coils, oil cooler – some models
F20 (30A/50A) Cooling fan motor – some models
F22 (30A) Multifunction control box – some models
F23 (7.5A) Rain sensor, telephone
F24 —
F25 (20A) Additional heater
F26 —
The fuses numbered 1 or 2 are responsible for the operation of the cigarette lighter.
Relay department diagram
Allocation
1 ABS pump motor relay
2 Windshield wiper motor relay 1
3 Oil cooler fan motor relay
4 Headlight washer pump relay
5 Windshield wiper motor relay 2
6 Windshield washer pump relay
7 Horn relay
F39 (30A) Engine oil cooler fan motor
F40 (10A) Sound signals
F41 (15A) Multifunction control box
F42 (7.5A) Heater and windshield washer nozzles
F43 (7.5/10A) Windshield washers
F44 (40A) Windshield wiper
F45 (30A) Headlight washers
Additional fuse and relay box
It is located on the right side, next to the electronic transmission control unit.
Photo 2
This may include: Exhaust Air Pump Relay, Starter Relay, Overload/ Surge Protective Relay (ABS)
and some fuses.
Passenger compartment
Fuse box in the instrument panel
This fuse box is installed at the end of the dashboard behind a protective cover.
Diagram
Diagram 2
LHD
1 Not used
2 15A Stoplight switch / Cruise control
3 7.5A Right high beam, Headlight high beam indicator
4 15A Reversing lamps, Direction indicators, Rear wiper control (T210), Dimming rearview
mirror, Parking assistance
5 7.5A Left high beam
6 15A Right dipped beam
7 7.5A Parking lights on the right side
8 15A Left dipped beam
9 15A Front fog light
10 7.5A Parking lights on the left side
11 7.5A License plate light, Instrument panel light, Warning lamps, Headlight range control
12 7.5A Rear fog lamp
*RHD
15A Front fog lights
7.5A Rear fog lamp
7.5A Parking lights on the right side
7.5A Parking lights on the left side
7.5A Left high beam
7.5A License plate light, Instrument panel light, Warning lamps, Headlight range control
7.5A Right high beam, Headlight high beam indicator
15A Left dipped beam
15A Stoplight switch / Cruise control
15A Right dipped beam
Not used
15A Reversing lamps, Direction indicators, Rear wiper control (T210), Dimming rearview mirror,
Parking assistance
Fuse box under rear seat
There is another fuse and relay box under the rear passenger seat.
Decoding
1 30A до 28.2.97:
Multifunctional control box:
Left rear power window
Right rear power window
20A from 1.3.97: Right front door control unit
2 30A until 28.2.97:
Multifunctional control box:
Front left power window
Front right power window
20A from 1.3.97: Right rear door control unit
3 15A until 28.2.97:
trunk lighting
Combined control unit
front cover
rear cover
Lamps in the doors
Ventilation front left seat
Ventilation front right seat
Taxi:
Interior lighting
7.5A since 1.3.97:
Bottom control panel
rear cover
trunk lighting
Taxi:
Interior lighting
4 25A until 28.2.97:
Luke
sunroof switch
25A from 1.3.97: Overhead control panel control unit
5 25A Pneumatic system
Horn of the anti-theft system
Radio
Radio and navigation system control panel
Navigation processor
CD player with changer (in trunk)
Receiver and amplifier (in the trunk)
Display and function control unit COMAND (from 1.6.99)
Rear window aerial amplifier module (as of 1.6.99)
6 20A until 28.2.97:
Wagon: Tailgate closing system
25A from 1.3.97:
Engines 111, 112, 113: Fuel pump
7 30A until 28.2.97:
Power mirrors
Steering column adjustment drive
20A from 1.3.97:
Wagon: Tailgate closing system
8 25A Power seat control unit, left (with memory)
25A Partially electric driver’s seat adjustment (as of 1.6.99)
9 25A Power seat control unit, left (with memory)
25A Adjusting the partially electric passenger seat (from 1.6.99)
10 10A Refrigerator
Interior monitoring (in the presence of an alarm) (until 28.2.97):
Motion Sensor
Signaling (ATA) (until 2/28/97):
ATA Tilt Sensor
Information systems, (Japan; from 1.3.97 to 31.5.99):
CD player with changer (in trunk)
Antenna amplifier
TV tuner
Navigation processor
Relay 15 terminals
Display and function control unit COMAND (from 1.6.99):
TV tuner
11 7.5A from 1.3.97 to 31.5.99:
Signaling (ATA):
Alarm horn with optional battery
Tilt sensor (US)
ADS or ESP, engine 112, 113 and 606:
Steering wheel position sensor
Interior monitoring (if there is an alarm):
tilt sensor
Motion Sensor
from 1.6.99:
USA:
Emergency unlocking of the boot lid (from 1.6.00)
Electronic Stability Program (ESP):
Steering wheel position sensor
Interior monitoring (if there is an alarm):
Motion Sensor
tilt sensor
12 25A Trailer connector
13 25A Power seat control unit, right (with memory)
14 25A Power seat control unit, right (with memory)
15 7.5A Taxi (until 2/28/97):
Taxi sign illumination
Taxi sign light switch
Dynamic navigation system (from 1.3.97 to 31.5.98):
Phone
TELE AID control unit (since 1.3.97)
Emergency call control unit (since 1.3.97)
CTEL transmitter / receiver (up to 31.5.98)
Voice control control unit (as of 1.6.98)
D2B interface (until 31.5.00)
Tire pressure monitoring control unit (as of 1.3.97)
16 25A Audio amplifier
17 25A until 28.2.97:
Rear seat heating
20A from 1.3.97:
Rear seat heating
18 20A Heated front seats
19 40A Pneumatic system
Rear window heating
central locking
Signaling
Volume sensor and towing sensor
20 40A from 1.3.97:
official cars
Taxi:
Additional fuse box
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That’s all. If you know how to make the material better – write in the comments.
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Comments6
John
30.07.2022 at 10:22
thank you for this guide to fuses and relays so helpful.
But what are the fuses in the Additional fuse and relay box as I have a 2000 w210 e200k right
hand drive and have blown a fuse in this K40 relay box which caused starting problems and esp
and abs codes once 3rd fuse replaced all ok except now no air conditioning.
Any help please
Regards
John
Reply
Hennie
15.11.2022 at 10:07
Hi its Hennie my E240 stand for a 1and a half year i recently start it a few times and the last 2
times it start intermitendly somethimes it start immediatly somethimes longer. Can it be the
starter relay or can i spray electrical cleaner i living at the coast and think its part of it .Nothing
can just break down while standing .Maybe you can advise where to check Its a E240 1999
model W210 Rh drive as i live in South Africa.Regards
Reply
Robert Flood
10.01.2025 at 01:13
Full service of all fluids, fuel filter air filter new plugs
Reply
Andrej
06.12.2023 at 15:54
How do you check if the fuses are out of order?
Reply
Edwinngandu
17.12.2023 at 01:19
Hi it’s Eddie from zambia I just recently bought a w210 RHD, which had a lost key. tried to get
another key reprogrammed but still can’t start. pleas help. what should I do?
Reply
NATHAN
04.09.2024 at 15:25
W-208 2003 208.465 AKA A208 CONVERTIBLE
W-209 2003 COUPE
Reply
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