A/C COMPRESSOR, REMOVING AND INSTALLING ON BRACKET, ELECTRICALLY-DRIVEN A/C COMPRESSOR, Vehicles with 2.0L Hybrid: Installing

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Installation is done is reverse order, observe the following:

Check the bolting points of the A/C compressor and the bracket prior to installation. The contact surfaces must be clean and rust and grease-free. Otherwise, repair the contact surfaces with the Contact Surface Cleaning Set VAS6410. Refer to CONTACT SURFACE CLEANING SET VAS6410 .

NOTE:

After installing the A/C compressor and the subsequent filling of the refrigerant circuit, start up the removed electrically-driven A/C compressor for the first time via the "compressor cut-in" function for the basic setting. If the refrigerant oil was improperly stored before installation in the A/C compressor compression chamber, the A/C compressor may become damaged. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING, ELECTRICALLY-DRIVEN A/C COMPRESSOR and using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.

Only activate the electrically driven A/C compressor when the refrigerant circuits are filled. The A/C compressor may become damaged if the A/C compressor is run while the refrigerant circuit is empty using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.

-- Install bolts -A-, -B- or -C-.

Fig 1: View Of A/C Compressor Mounting Bolts -A-, -B- And -C-

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Depending on the engine and when the vehicle was manufactured, the different bolts have different tightening specifications.

Ensure the correct allocation.
Aluminum bolts (item -A-) only to be used once, replace.
Tightening specification for aluminum bolts (item -A-) 8 Nm +180°
Tightening specification for steel bolts (here -B- and -C-) 25 Nm

-- Tighten the bolts -arrow-.

Fig 2: Electrically-Driven A/C Compressor And Mounting Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Connect the connector to the electric system.

NOTE:

After fastening the A/C compressor, check installation position of refrigerant lines, lines must be engaged in bracket (if installed, depending on engine).

Check refrigerant lines and their bracket to ensure there is enough distance to the other components. Ensure there is also enough distance between belts, bracket and pulley.

-- Secure the electric high voltage system cable to the designated engine points.

Fig 3: Identifying High Voltage System Cable Attaching Points

Courtesy of AUDI OF AMERICA, LLC

-- Secure the clip -1- to the engine -2- and cable holder -3- on the wiring harness -4- as illustrated.

-- Install the air guide hoses with the screw-type clamps. Refer to OVERVIEW - CHARGE AIR SYSTEM .

-- Install the remaining removed components.

-- Energize the power supply to the high voltage system. Refer to HIGH VOLTAGE SYSTEM, RE-ENERGIZING .

Restart the high voltage system

CAUTION:

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.

NOTE:

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 -J255- display and control head and the A/C Compressor Control Module -J842- and, if necessary, erase the displayed faults using the Vehicle Diagnostic Tester in the "Guided Fault Finding " function.