Bosch A/C Service Info

A/C Service Info April 2021

A matchless dream team: ACS service range combined with ESI[tronic] 2.0 Online Modern A/C service is more than just standard routines: ESI[tronic] 2.0 Online and Bosch Connected Repair combine it with diagnosis and troubleshooting

Imprint: Robert Bosch GmbH, (enter address and contact data here)

Bosch Connected Repair connects Bosch workshop equipment

Workshops are dealing with a constantly growing demand for professional servicing of automotive air conditioning systems. Most of the vehicles produced throughout the last years are equipped with heating and climate control. For this purpose, the control unit ensures the functional interaction between actuators, A/C compressor, engine cooling fan and the cabin fan motor. It also controls the heating system and the flaps guiding the air flow into the cabin. In addition, several sensors supply the system with information concerning temperature zones inside the cabin, exterior temperatures, engine conditions and settings made by the driver.

Accordingly, modern air conditioning service is much more than just standard routines. Using ESI[tronic] 2.0 Online and Bosch Connected Repair, Bosch A/C service units can be combined with troubleshooting and linked to diagnostic equipment to increase the efficiency of air condition servicing.

electric and hybrid vehicles and meet the high demands of SAE J-2788 – the technically demanding US standard applicable to A/C service units – and the European standards.

ANYTHING YOU NEED TO SERVICE AIR CONDITIONING SYSTEMS

The Bosch range includes suitable, powerful, fully automatic and userfriendly A/C service units to meet all workshop requirements. Their stepby-step instructions guide the user through the A/C service. With these guidelines, even service tasks beyond the standard routines – such as A/C flushing or leakage detection, for

Featuring accurate measurement technology and fully automatic service routines, Bosch A/C service units efficiently service passenger car and commercial vehicle air conditioning systems. They are also suitable for

AIR CONDITIONING SERVICE UNITS FOR ANY WORKSHOP

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connectivity of today’s vehicle systems, the workshops’ way of working when servicing and performing repairs changes continuously. By means of the versatile ESI[tronic] 2.0 Online features and the connectivity via Bosch Connected Repair, Bosch diagnostic solutions expand the workshops’ range of services while easing maintenance and repair procedures. Using Bosch Connected Repair, a vehicle driving up for its maintenance or repair can be identified by its vehicle identification number (VIN). This application eases entering vehicle and customer data. All information is entered just once. It is lastingly stored in a workshop-internal database and can be accessed and reused at any time.

At the reception check via Bosch KTS,

Often used in workshops: Bosch ACS air conditioning service units

Imprint: Robert Bosch GmbH, (enter address and contact data here)

instance – can be performed. The main reason for A/C flushing is the replacement of one of the system’s components – e.g. of the compressor.

After all, flushing is compulsory for the manufacturer warranty to remain effective and to prevent damage to the new compressor from fragments and remnants within the refrigerant circuit.

Bosch A/C service units stand out for their easy handling, fully automatic procedures and their particularly high performance. Thanks to their exclusive “deep recovery system,” both the premium and standard models recover up to 99 percent of the refrigerant even under difficult environmental conditions. The integrated forming-gas pressure test option allows accurate 'leak-proof' tests. The ACS 563 and ACS 553 entry-level units support workshops with daily service tasks such as refrigerant recovery, filling and

recycling. They feature a recovery rate of up to 95 percent.

In addition, the top model ACS 863 automatically tests the purity of R1234yf refrigerant. Moreover, ACS 763, ACS 753 and ACS 863 also feature an integrated nitrogen and hydrogen pressure test.

Using the WLAN dongle, the units can also be integrated into asanetwork or linked to Bosch Connected Repair workshop software.

MODERN DIAGNOSIS USING ESI[TRONIC] 2.0 ONLINE AND BOSCH CONNECTED REPAIR For comprehensive servicing of automotive air conditioning systems, the ACS units can be combined with ESI[tronic] 2.0 Online and KTS-series diagnostic solutions. This takes standard A/C service to the next level.

Due to the complexity and ongoing

Bosch KTS 590 and 560

the vehicle condition is analyzed and possible faults are listed. The fault memory monitors the components connected to the air conditioning system via control units. In this manner, all of the vehicle’s fault memories are checked while allowing to save the results.

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For additional information and regarding specific issues, users can access technical documents such as circuit diagrams, test values, installation positions, information on spare parts and additional support using ESI[tronic] 2.0 Online.

Even product information such as the order number of suitable cabin filters, installation instructions and test routines in line with the manufacturer specifications can be accessed easily for each vehicle.

Fault memory

Besides reading out actual values of the components installed – e.g. the values of the temperature sensor – the air conditioning system pressures can also be analyzed. The functionality of the control panel is checked as well.

Overview Bosch cabin filters – because professional A/C servicing includes cabin filter replacement.

Installation position of the sensor

Imprint: Robert Bosch GmbH, (enter address and contact data here)

Actual values

Moreover, the ECU diagnosis includes different functional tests concerning the air conditioning system. For this purpose, components such as the compressor, the fan or even the air distributor can be operated and checked via KTS device.

The nominal values and filling quantity are specified at the database of the A/C service unit and at ESI[tronic] 2.0 Online.

In addition, mechanics can also use experience-based repair (EBR). It comprises the most common A/C faults compiled by vehicle types. EBR is a database listing known faults and the respective solutions or remedies.

Using a WLAN network and Connected Repair, workshops are able to connect their workshop equipment to one another. Thanks to this data workflow, they can increase both speed and efficiency of their work and save the results. This interaction between Bosch ACS units and diagnostic solutions allows professional and competent servicing of automotive air conditioning systems.

Circuit diagram

The diagnosis includes routines to check proper A/C functionality. The results are documented at a protocol.

Bosch Connected Repair provides yet another unusual feature. It connects the test equipment such as ACS units, KTS and ESI[tronic] 2.0 Online with one another. That is, once the vehicle has been identified, test protocols and repair procedures are stored centrally in a paperless form.

Connected Repair Before using the test equipment, user and vehicle data must be entered. Connected Repair prevents the need to enter the same data twice – right from the first checkin at the workshop. Connected Repair logs any tasks performed and saves the results obtained at a central database. It also keeps a record for each vehicle. Pictures can be added via smartphone.