Excellence for Professionals:

Air Conditioner Service with Bosch

ACS 752, 652, 611, 511, 810 and 661

1
A/C service
from Bosch
Air conditioning systems in vehicles require regular maintenance. The market
potential for intelligent air conditioning service is therefore constantly increasing.
When it comes to these services, it is the workshops with expertise and the right
equipment that have the upper hand.

u 
ACS 752 and ACS 652: Complete fully automatic
air conditioning service unit without
manual valves and compatible with Hybrid and
Electrical vehicles
u 
ACS 611 and ACS 511: Fully Automatic air
conditioning service unit
u 
ACS 810: Automatic ACS for Heavy Duty systems
with large internal tank (35 kg) and liquid pump for
fast refrigerant charge
u 
ACS 661: Fully Automatic air conditioning unit for
R-1234yf A/C systems

Driving comfort and safety with air conditioners The new Bosch ACS air conditioning service unit:
Air conditioners are standard vehicle equipment: Nowa- 5 models for all workshop profiles
days, over 60 percent of small cars and over 90 percent of  ACS 752: Complete fully automatic unit that meets the
mid-range and premium range models are fitted with air highest requirements for air conditioning units for cars
conditioners and the share increases every day. and commercial vehicles, compatible with Hybrid A/C
 For most small cars, an air conditioner can at least be system according to SAE J2788 standard.
ordered as an option.  ACS 652: Complete fully automatic unit for passenger
 The trend is increasing, both for passenger cars and cars, commercial vehicles and trucks compatible with
commercial vehicles. Hybrid A/C systems
 Sooner or later, there will be very few vehicles  ACS 611: Fully automatic unit for passenger cars,
without an air conditioner. commercial vehicles and trucks
 ACS 511: Fully Automatic unit with the fastest return
of investment
 ACS 810: Heavy Duty Automatic A/C unit for buses,
truck and commercial vehicles
 ACS 661: Fully automatic unit for vehicles equipped
with R-1234yf refrigerant

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Ready for summer! Scorching temperatures
are easily handled with Bosch ACS

Stay cool with our air condition-

ing service: With the new ACS
units from Bosch, you can take
advantage of comfort, precision,
and fully-automated operations.

Service work on air conditioning systems with R-134a

is an everyday workshop task that will continue for the
next few years.
Despite the introduction of the new refrigerant R-1234yf,
vehicle manufacturers are still permitted to supply new
vehicles with R-134a refrigerant in their air conditioning
systems until 2016. With an average vehicle service life
of 20 years, R-134a air conditioning service units will
generate a lot of revenue in workshop service.

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ACS 752 new standard in air conditioning
service: Fully automatic

4
Precise, practical, powerful: Detailed-focused
solutions for the highest standards
ACS 752: Safe and efficient, for professional The advantages of the ACS 752 at a glance
and economical air conditioner service
Thanks to high-precision measuring technology and Professional and comfortable
a fully automatic service process, the ACS 752 A/C  Fully automatic service process or single
service unit from Bosch ensures that service work on air service process selectable
conditioning systems in cars and commercial vehicles is  High performance: Fast recovery (US patent)
environmentally friendly. The ACS 752 fulfills all the and deep vacuum functions
requirements of the demanding SAE J-2788 standard,  Premium accuracy: 15 grams charge accuracy,
the definitive US standard for A/C service units. 30 grams in recovery
 Suitable for vehicles with combustion engines
Fully automatic operations process and hybrid vehicles (PAG/POE)
The unit performs all of the following tasks without the  SAE J-2788 design guarantees professional
need for manual intervention: Refrigerant extraction, and environmentally-friendly handling of
refrigerant recycling, used oil draining, evacuation with refrigerant
the associated leak testing, refilling of new oil (PAG/  Innovative user interface (1/4 color VGA
POE) with UV dye, and precise refrigerant filling. display)
 Integrated database for both car and
Perfect air conditioner service for cars and commercial commercial vehicle set values
vehicles  PC A/C remote desktop function (optional)
The ACS 752 is suitable for fully automatic maintenance  Asanetwork SW connection (optional)
and repair work on all cars and commercial vehicle  Printer
air conditioning systems.

Service for hybrid and electric vehicles Clear and precise!

Two oil injection bottles for PAG and POE lubricant and
the automatic service hoses flushing function make the Navigation made easy
unit compatible for hybrid and electric vehicles A/C  Large Color display (5,7”, ¼ VGA)
systems.  Clear menu structure and intelligent
operation
Fully equipped for the ultimate service
Speaks your language
The top-of-the-line ACS 752 has all the equipment you
 Menu navigation in 21 languages
need for service work, even on large air-conditioning
systems: A reliable vehicle database
 No manual valves  Fully-integrated vehicle database
 Deep Recovery function (US patent) > 95%  Regular updates for all new possible models
 Powerful Dual Stage Vacuum pump (170 l/min)  Truck, passenger and commercial vehicle data
 PAG and POE oil injection  Refrigerant quantity, oil specification
 Large refrigerant tank (20 kg)
 Automatic purge of Non - condensable gas with
electronic control
 Flushing program with optional kit
 Printer integrated
 Temperature probe for A/C system performance checks
 LAN connection

Order number
ACS 752 S P00 000 069

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The ACS 652 has what you need: First-class
equipment for cars and commercial vehicles

6
ACS 652: First-class equipment for professional The advantages of the ACS 652 at a glance
air conditioning service
The ACS 652 is well-suited for workshops with a medium Professional equipment as standard
to high workload in air conditioning service. High-  Fully automatic service process or single ser-
precision measuring technology and the fully automatic vice process selectable
process enable environmentally-friendly service work on  High performance deep vacuum function
car and commercial vehicle air conditioning systems.  Suitable for vehicles with combustion engines
and hybrid vehicles (PAG/POE)
Fully automatic operation process  Integrated database for car, truck and commer-
The elite ACS 652 unit performs all the following tasks cial vehicles
without the need for manual intervention: Refrigerant  Messages on display guide the operators step
extraction, refrigerant recycling, used oil draining, by step
evacuation with the associated leak testing, refilling of  Integrated, guided performance test for A/C
new oil with UV dye, and precise refrigerant filling. system
 Integrated flushing program with optional kit
Service for hybrid and electric vehicles  Automatic purge of non condensable gas
Two oil injection bottles for PAG and POE lubricant.  Serviceability: easy Filter dryer and vacuum
Service hoses flushing function make the unit pump oil change
compatible for hybrid and electric vehicles A/C systems.  Printer

Fully equipped for the ultimate service

The top-of-the-line ACS 652 has all the equipment you Clear and precise!
need for service work, even on large air-conditioning
systems: Navigation made easy
 No manual valves  Clear menu structure and intelligent operation
 Powerful Dual Stage Vacuum pump (170 l/min)  Messages on display guide the operators step
 PAG and POE oil injection system automatic by step
 UV dye injection system automatic
Speaks your language
 Large refrigerant tank (20 kg)
 Menu navigation in 21 languages
 Automatic purge of Non - condensable gas
 Charge with automatic compensation of service hoses A reliable vehicle database
 Multi-phase refrigerant recycling during vacuum phase  Fully-integrated vehicle database
 Accessible vacuum pump for easy oil change  Regular updates for all new possible models
 Quick selection for the last 10 vehicles serviced
Order number  Own vehicle database (e.g. regular customers)
ACS 652 S P00 000 070  Quick-start function

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Fully automatic air conditioning service units:
ACS 611 and ACS 511
The ACS 611 is one of the most advanced air vacuum pump of the ACS 611 assures quick and
conditioning service units for cars and trucks. Like all effective evacuation of the system and, as with all
fully-automated Bosch units, it is designed to carry Bosch units, it comes equipped with a database to
out the maintenance of R-134a-based air conditioning provide the necessary oil and refrigerant quantities
systems with a minimum of manual intervention. for the vehicle’s air conditioner. The ACS 611 also has
The unit automatically controls every phase of an integrated printer to create detailed reports. As
maintenance, including oil and refrigerant recovery, an alternative for garages with low service levels, we
recycling and refilling without needing direct offer our ACS 511 model, which has a less powerful
intervention from a technician. However, the compressor yet still meets the requirements for a
manual mode allows the user to control all aspects professional A/C service and without any compromise
individually if so desired. The powerful, two-phase to the high quality one expects from Bosch units.

The advantages of the

ACS 611 and ACS 511 at a glance

ff Fully automatic service process

ff Single service process selectable
ff Deep vacuum (Vacuum pump 170 l/min for ACS
611)
ff OIL/UV dye injection bottles
ff Large internal tank (20 kg for ACS 611)
ff Messages on display guide the operators step
by step
ff Integrated database for car, truck and
commercial vehicle
ff Charge with automatic compensation of service
hoses
ff Integrated flushing program with optional kit
ff Multi-phase refrigerant recycling during vacuum
phase
ff Integrated, guided performance test for A/C
system
ACS 611
ff Automatic purge of non condensable gas
ff Easy internal filter maintenance
ff Accessible vacuum pump for easy oil change Order number
ff Printer ACS 611 S P00 000 002
ACS 511 S P00 000 001

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Automatic air conditioning service unit for heavy
duty systems: ACS 810
The ACS 810 is an air conditioning service unit, temperature control and constant refrigerant pressure
which is specifically designed to meet bus and truck during the recovery phase. At the same time, it prevents
requirements and is focused on high-capacity, R-134a- the internal components from overheating. The high-
based air conditioners. The unit automatically checks performance filling pump allows the quick and complete
refrigerant recovery, recycling and refilling. Five-meter filling of refrigerant and oil. The unit has an integrated
service hoses make the connection easy in all AC printer to create a detailed report and makes it possible
systems. The two-liter bottle for oil injection and to provide professional air conditioner servicing for
recovery permits management of large quantities of heavy commercial vehicles and buses.
compressor lubricant. The double fan assures excellent

The advantages of the

ACS 810 at a glance

ff Automatic service process

ff Single service process selectable
ff Fast and Deep vacuum
(Vacuum pump 283 l/min)
ff Large oil canister (2000 ml)
ff Large internal tank (35 kg)
ff Long service hoses standard (5 mt)
ff Liquid pump for charge oil and refrigerant
ff Integrated database for both trucks and
commercial vehicles
ff Integrated flushing program with optional kit
ff Multi-phase refrigerant recycling during
vacuum phase
ff Integrated, guided performance test for A/C
system
ff Automatic purge of non condensable gas
ff Easy internal filter maintenance
ACS 810
ff Accessible vacuum pump for easy oil change
ff Printer
Order number
ACS 810 S P00 000 003

Bosch ACS 810: The specialist for large air conditioning systems

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Fully Automatic air conditioning unit for
R-1234yf A/C systems: ACS 661
ACS 661: The diagnostics innovation from Bosch Technical competence allows safety, ease of operation,
for R-1234yf and precision.
After the market launch of the first vehicle models with The ASC 661 ensures easy, time-saving, and precise
the new R-1234yf air conditioning systems in 2011, service on modern R-1234yf air conditioning systems.
Bosch collaborated closely with the automobile industry Bosch technology and attention to detail ensures
to develop the new air conditioning service machine. equipment compliance with all applicable performance
The technologically advanced ACS 661 delivers reliable and safety standards including the R-1234yf refrigerant
workshop service and supports a healthy environment. service equipment.

Simply perfect
Nowadays, everything is easier with Automation. With
the ACS 661, air conditioning service is fully automatic.

The advantages of the ACS 661 at a glance

Professional equipment as standard

 Fully automatic service process
 Single service process selectable
 Service hoses flushing function for Hybrid/
electrical systems compatibility
 Separate OIL/UV dye injection bottles
 High performance deep vacuum function
 Electronic control of internal air exchange
 Integrated flushing program with optional kit
 Automatic purge of non condensable gas
 Easy internal filter maintenance
 Serviceability: easy Filter dryer and vacuum
pump oil change
 Printer

ACS 661

Order number
ACS 661 S P00 000 071

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Special accessories
for your service
Designation Order number Description
Electronic leak detector kit 1 687 234 012 The electronic leak detector indicates the refrigerant concentration with
a loud audible signal. The brightness of the LED also visualizes the size of
the leak. Its features include simple handling and two sensitivity levels.
UV leak detector kit 1 687 001 591  rofessional tool set for injection of a UV dye and identification of leakage
P
in the refrigerant circuit. Equipment supply: Injector gun, 1 x UV cartridge,
UV leak detection lamp, service hose, and rapid coupling.
UV lamp (internal battery) 1 687 550 014 Powerful 1-Watt leak detection lamp with 3 integrated (AA) batteries.
UV lamp (vehicle-battery) F 002 DG1 430 12 volt UV leak detection lamp for automotive air conditioning systems.
UV dye (refill) 10 x 7.5 ml 1 689 916 001 10 single-shot universal dye cartridges preventing dye from over-charging
in vehicles. To use with UV Leak detector kit 1 687 001 591.
UV dye (refill) 4 x 30 ml F 002 DG1 426 4 dye cartridges. 30 ml for 5 applications. To use with UV Leak detector kit
1 687 001 591.
UV contrast agent bottle 1 689 916 000 240 ml AC/dye. Dye for 32 applications in a squeezable dosing bottle.
Compressor oil (ISO 46) F 002 DG1 440 Compressor PAG oil bottle 250 ml ISO 46.
Compressor oil (ISO 100) F 002 DG1 452 Compressor PAG oil bottle 250 ml ISO 100.
Compressor oil (ISO 150) F 002 DG1 453 Compressor PAG oil bottle 250 ml ISO 150.
Digital thermometer 1 687 230 062  ecords temperature directly at the ventilation shaft – before and after air
R
conditioning service.
Temperature range from –50 °C to 150 °C.
Dust cover for ACS unit S P00 100 076 Dust cover to protect your ACS 611, 511 and 810 Bosch AC machines.
Kit of 2.5 m extensions for service hoses S P00 100 075 Kit of 2.5 m extensions for AC machine service hoses.
 ecessary for filling the internal refrigerant bottle.
N
Cylinder adapter F 002 DG1 649
Adaptable to all conventional R-134a refrigerant bottles.
Service connections for Renault F 002 DG1 433 Special coupling for connection to Renault vehicles
Service connections for  pecial coupling for connection in difficult-to-access
S
F 002 DG1 432
BMW E60, Ford, Volvo areas in certain BMW 5 series models
Paper reel for printer RCT58x30 S P00 100 087 Paper reel for printer: One roller
Oil for vacuum pump 0.6 L S P00 100 086 Vacuum pump oil: One bottle 0.6 liters

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ACS 752, ACS 652 and ACS 611
Technical data
ACS 752 ACS 652 ACS 611
Refrigerant R-134a R-134a R-134a
Operating modes Fully automatic Fully automatic Fully automatic
Manual valves no no yes, 2 (LP & HP)
Single processing mode
selection(recovery, vaccum, yes yes yes
charge functions)
Recovery function Automatic Automatic Automatic
Oil drain Automatic with electronic scale Automatic with electronic scale Automatic with electronic scale
Vacuum function Automatic Automatic Automatic
Leak test Automatic Automatic Automatic
Oil injection Automatic with electronic scale Automatic with electronic scale Automatic with electronic scale
UV dye injection Automatic with electronic scale Automatic Automatic
Refrigerant charge Automatic Automatic Automatic
Flushing function yes (flushing kit optional) yes (flushing kit optional) yes (flushing kit optional)
Hybrid oil function yes yes no
Air purging Automatic with electronic control Automatic Automatic
Accuracy of scales ±5g ±5g ±5g
Pressure gauge for HP/LP 80 mm, class 1 80 mm, class 1 80 mm, class 1
Tank pressure display Digital Tank gauge: 40 mm Tank gauge: 40 mm
Status display Acoustic Acoustic Acoustic
80 digits LCD display 80 digits LCD display
Display 5.7”, ¼ VGA (320 x 240 pixel)
(with background lighting) (with background lighting)
User interface 21 languages 21 languages 21 languages
Printer yes yes yes
yes (cars, light commercial vehicles yes (cars, light commercial vehicles yes (cars, light commercial vehicles
Vehicle database
and trucks on the European market) and trucks on the European market) and trucks on the European market)
Data exchange USB, LAN, BT and Audio interface PS2 connector PS2 connector
Service hoses 2.44 m, SAE J2196 2.44 m, SAE J2196 2.44 m, SAE J2196
Dual-stage vacuum pump: Dual-stage vacuum pump: Dual-stage vacuum pump:
Vacuum pump
170 l/min 170 l/min 170 l/min
Refrigerant tank 20 kg, PED certified 20 kg, PED certified 20 kg, PED certified
Oil bottles 250 ml 250 ml 250 ml
UV dye bottle 250 ml 50 ml 50 ml
Oil/UV bottles (scope of delivery) 3 standard bottles + 1 UV dye bottle 2 standard bottles + 1 UV dye bottle 2 standard bottles + 1 UV dye bottle
Vibration-resistant
yes yes yes
refrigerant scale
Recovery rate > 95% < 95% < 95%
Compressor 3/8 HP 3/8 HP 3/8 HP
CE mark yes yes yes
SAE standards yes no no
Dimensions (L x W x H) 690 × 660 x 1270 mm 690 × 660 x 1270 mm 690 × 660 x 1270 mm
Weight 120 kg (with empty refrigerant tank) 120 kg (with empty refrigerant tank) 120 kg (with empty refrigerant tank)
Power supply 230 V 50/60 Hz 230 V 50/60 Hz 230 V 50/60 Hz
Operating temperature 10 °C to 50 °C 10 °C to 50 °C 10 °C to 50 °C

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ACS 511, ACS 810 and ACS 661
Technical data
ACS 511 ACS 810 ACS 661
Refrigerant R-134a R-134a R-1234yf
Operating modes fully automatic Automatic fully automatic
Manual valves yes, 2 (LP & HP) yes, 2 (LP & HP) yes, 2 (LP & HP)
Single processing mode
selection(recovery, vaccum, yes yes yes
charge functions)
Recovery function Automatic Automatic Automatic
Oil drain Automatic with electronic scale Automatic Automatic
Vacuum function Automatic Automatic Automatic
Leak test Automatic Automatic Automatic
Oil injection Automatic with electronic scale Manual with solenoid control Automatic
UV dye injection Automatic Not available Automatic
Refrigerant charge Automatic Automatic Automatic
Flushing function yes (flushing kit optional) yes (flushing kit optional) yes (flushing kit optional)
Hybrid oil function no no Service hoses flushing only
Air purging Automatic Automatic Automatic with electronic control
Accuracy of scales ±5g ±5g ±5g
Pressure gauge for HP/LP 80 mm, class 1 80 mm, class 1 60 mm, class 1
Tank pressure display Tank gauge: 40 mm Tank gauge: 40 mm Digital
Status display Acoustic Acoustic Acoustic
80 digits LCD display 80 digits LCD display Monochrome graphical display
Display
(with background lighting) (with background lighting) (240 x 160)
User interface 21 languages 21 languages 21 languages
Printer yes yes yes
yes (cars, light commercial vehicles yes (cars, light commercial vehicles
Vehicle database yes (cars)
and trucks on the European market) and trucks on the European market)
Data exchange PS2 connector PS2 connector USB
Service hoses 2.44 m, SAE J2196 5.00 m, SAE J2196 2.44 m, SAE J2888
Single-stage vacuum pump: Dual-stage vacuum pump: Dual-stage vacuum pump:
Vacuum pump
70 l/min 283 l/min 170 l/min
Refrigerant tank 8 kg 35 kg, PED certified 20 kg, PED certified
Oil bottles 250 ml 2000 ml 250 ml
UV dye bottle 50 ml no 50 ml
Oil/UV bottles (scope of delivery) 2 standard bottles + 1 UV dye bottle 2 standard bottles 3 standard bottles + 1 UV dye bottle
Vibration-resistant
yes yes yes
refrigerant scale
Recovery rate < 95% < 95% < 95%
Compressor 1/4 HP 5/8 HP 3/8 HP
CE mark yes yes yes
SAE standards no no no
Dimensions (L x W x H) 690 × 660 x 1270 mm 690 × 660 x 1270 mm 690 × 660 x 1270 mm
Weight 90 kg (with empty refrigerant tank) 130 kg (with empty refrigerant tank) 120 kg (with empty refrigerant tank)
Power supply 230 V 50/60 Hz 230 V 50 Hz 230 V 50/60 Hz
Operating temperature 10 °C to 50 °C 10 °C to 50 °C 10 °C to 50 °C

13
Air conditioning service:
Good reasons for your customers
Driving comfort and safety
Very high and low temperatures in the vehicle interior put a strain on the driver
and negatively effect his reactions and ability to respond. With regular air condi-
tioning checks, the temperature is always perfectly regulated and you are free to
concentrate on your driving.

Protecting the environment

Through regular checks of the air conditioning system, faults can be detected
early. Thus preventing the leakage of cooling agents which are harmful to the
environment.

Saving costs
High repair costs for the air conditioning system are usually the result of irregular
or non-existent maintenance. Regular air conditioning checks rule out the need
for expensive repairs, saving you money.

Clean air
With the change of the cabin filter, the air
conditioning check is complete. The driver
and his passengers can now benefit from
even more comfort and safety:

ffThe reliable filtration of soot, pollen, dirt

particles and pollutants prevents damage
to the health of the vehicle's occupants
ffActivated carbon filters from Bosch filter
the smallest of particles, such as damaging
fumes and ozone
ffA clear reduction of deposits, e.g. in the
fan or on the windscreen

It is important to replace the cabin filter when getting your air conditioning
system serviced. Because the service is only complete with a new filter.

14
How the air conditioner works
Functions for comfort and safety

The compressor
Draws cold, gaseous refrigerant
from the evaporator and forces it
into the condenser.
Air into the ve-
hicle interior
In the condenser
Expansion valve
The gas is cooled under pressure
by the head wind and is then
Evaporator liquified (condensed).
Service
connection In the dryer and collector
Service Cleaning and drying of the
Low pressure

connection refrigerant occurs.

The expansion valve

Injects the cleaned refrigerant
Fresh air blower
into the evaporator.

The evaporator
High pressure

Removes the evaporation heat

from the circulating air. As it
Dryer flows through, the air cools
Compressor down and is directed into the
Condenser vehicle interior.

Refrigerant Head wind

pressure sensor

The air conditioner in the vehicle and its components

The air conditioner: The working principle The refrigerant flows through the dryer where any
When the air conditioner is switched on with the engine existing moisture and contaminants are filtered out.
running, the compressor draws cold, gaseous refrigerant
out of the evaporator and forces it into the condenser. From the fluid tank, the refrigerant flows on to the ex-
When compressed, the refrigerant heats up to approxi- pansion valve. Here, the highly pressurized, liquified
mately 60 – 100 °C. The hot gas, which is now highly com- refrigerant is injected into the evaporator. In the evapo-
pressed, is cooled down in the condenser by the external rator, the liquefied refrigerant pressure drops and it
air (head wind or additional blower) that flows past. evaporates. The evaporation heat is drawn from the air
When the pressure-dependent dew point is reached, the flowing past the evaporator fins, causing it to cool. The
refrigerant condenses and liquifies. refrigerant, which is now completely gaseous again, is
drawn by the compressor and compressed.
Coming from the condenser, the completely liquified
refrigerant enters the fluid tank where it is collected.

15
Bosch: Bringing you
the workshop of the future
For over 125 years, Bosch innovations keep vehicles on the road and
get people to and from their destinations while assuring safety and
peace of mind along the way.

Bosch Automotive Aftermarket offers workshops and retailers a

comprehensive portfolio of products that is unmatched worldwide:
ff Efficient diagnostics
ff Innovative workshop equipment

The right to make changes of a technical nature and to alter the range on offer is reserved.
ff Quick, reliable delivery
ff The world’s most comprehensive range of spare parts –
including both new and remanufactured
ff Workshop concepts to meet every requirement
ff Comprehensive training
ff Targeted sales and marketing support
ff A competent service hotline
ff 24-hour online workshop services
ff Affordable leasing services for workshop equipment and software

From parts to scheduling, organization and results, our solutions are

combined with additional services to ensure your needs will be perfectly
met, helping you to maximize your potential.

Workshop tip:
When servicing an air conditioning system, think about changing the
cabin filter, because the service is only complete – and noticeable to
your customers – with a new filter.

Robert Bosch GmbH

76 76 XX

Automotive Aftermarket
Business Unit Automotive Service Solutions Perfect: The Bosch cabin filter program
for almost all vehicle types provides
AA-AS/MKC 05.2014 XXXXXXXXXXXXX

73201 Plochingen more comfort, safety and health pro-

Germany tection:
www.bosch-diagnostics.com ff Reliable filtration of dirt particles,
exhaust gases and ozone
ff Fewer deposits in the fan or on the
front windscreen