A/C COMPRESSOR, REMOVING AND INSTALLING, ELECTRICALLY-DRIVEN A/C COMPRESSOR, Vehicles with 2.0L Hybrid: Installing
Install in reverse order of removal. Note the following:
Before installing the A/C compressor. Refer to A/C SYSTEM, GENERAL INFORMATION (Refrigerant R134a, Servicing; A/C System, General Information).
There is a quantity of refrigerant oil in the removed A/C compressor, therefore observe the notes for replacing the A/C compressor. Refer to REFRIGERANT CIRCUIT COMPONENTS, REPLACING and A/C COMPRESSOR, REMOVING AND INSTALLING, ELECTRICALLY-DRIVEN A/C COMPRESSOR, Vehicles with 2.0L Hybrid (Refrigerant R134a, Servicing; Refrigerant Circuit Components, Replacing).
-- Install the A/C compressor on the bracket. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING ON BRACKET, ELECTRICALLY-DRIVEN A/C COMPRESSOR .
-- Attach the refrigerant lines to the A/C compressor. Refer to REFRIGERANT LINES, DISCONNECTING AND CONNECTING AT A/C COMPRESSOR .
Coat the O-ring seals lightly with refrigerant oil prior to installation. Refer to REFRIGERANT CIRCUIT SEALS .
After the installation of the electrically driven A/C compressor and the subsequent filling of the refrigerant circuit, start up the A/C compressor for the first time using the "compressor cut-in" function for the basic setting. The A/C compressor may otherwise become damaged if before installation, refrigerant oil was improperly stored in the A/C compressor compression chamber using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.
Only activate the electrically driven A/C compressor when the refrigerant circuits is filled. Damage to the A/C compressor may occur if the A/C compressor is running while the refrigerant circuit is empty using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
-- Evacuate the refrigerant circuit and fill it. Refer to USING SERVICE STATION . For additional information, refer to OVERVIEW - REFRIGERANT CIRCUIT, NOT OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITH HIGH VOLTAGE SYSTEM and OVERVIEW - REFRIGERANT CIRCUIT, OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITH HIGH VOLTAGE SYSTEM (Refrigerant R134a, Servicing; Refrigerant Circuit, Using Service Station).
-- Insert and secure the connector for the high voltage system on the A/C compressor.
- Do not bend the high voltage cable.
- Only insert the connector in the designated position (connector coding) on the A/C compressor. Never turn the connector.
-- Inspect the connector for debris and damage.
-- Plug the connector into the A/C compressor.
- The marks -1- and -2- on the connector and A/C compressor must line up with each other.
-- Secure the locking mechanism in the direction of the -arrow-.
-- Install the remaining removed parts in the opposite order.
-- Energize the power supply to the high voltage system. Refer to HIGH VOLTAGE SYSTEM, RE-ENERGIZING .
Restart the high voltage system
Risk of electrocution
Death or serious bodily injury by electric shock
- The high voltage system may only be restarted by qualified personal (Audi high voltage technicians).
- Make sure the vehicle is energized using the "Guided Fault Finding " on the Vehicle Diagnostic Tester.
- The qualified personal (Audi high voltage technician) restarts the vehicle.
- The Audi high voltage technician should put a sign on the vehicle to identify it as a high voltage vehicle.
Restart the high voltage system:
Connect the vehicle diagnostic tester.
Select the Guided Fault Finding mode.
Using the GO TO button, select the following menu commands
Function/Component Selection
Body
Electrical Equipment
OBD-capable systems
8C - Battery Regulation Control Module -J840
8C - Battery Regulation Control Module, functions
51 - High voltage restart
-- Turn on the ignition.
-- Check the DTC memory for the Climatronic Control Module -- display and control head and erase any displayed malfunctions, if necessary using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
-- Operate the Electrical A/C Compressor -V470- via the "compressor cut-in" function using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.
-- Operate the A/C system after filling the refrigerant circuit. Refer to A/C SYSTEM, STARTING OPERATION AFTER FILLING REFRIGERANT CIRCUIT .
Observe the information regarding operating the A/C system after filling. Refer to A/C SYSTEM, OPERATING AFTER CHARGING , (Refrigerant R134a, Servicing; A/C System, General Information). After charging the A/C system before activating the A/C system.