Hybrid

A/C Compressor

Special tools, testers and auxiliary items required

• Robinair A/C Service Unit (ROB 134APF)

• Flush Unit (VAS 6337/1A)

• Torque Wrench (V.A.G 1331)

Hybrid vehicles have a high voltage system. Danger of electric shock! It will also be necessary to work on the high voltage system when performing the following procedures. Switch off the high voltage system.

Hybrid vehicles have a high voltage system. Danger of electrical shock! Inspect the high voltage components visually before beginning. Follow the General Warnings.

• Check the amount of the refrigerant oil in the A/C compressor if the A/C compressor control module (J842) is faulty. Do not flush the refrigerant circuit with R134a.

• Disable the vehicle high voltage system if the refrigerant circuit was flushed with refrigerant R134a, for example, if the A/C compressor is damaged.

• Inspect the attachment points for the A/C compressor and engine prior to installing.

• The contact surfaces must be clean and rust and grease-free.

• Otherwise, repair the contact surfaces with the Contact surface cleaning set (VAS 6410).

Removal

• Extract the refrigerant using the (ROB 134APF) with (VAS 6337/1A) (or subsequent model).

• See notes, refer to => [ Refrigerant Circuit Components in Engine Compartment, Servicing ] Refrigerant Circuit Components in Engine Compartment, Servicing.

- Remove the left front wheel housing liner..

- Push the hose - 3 - slightly downward and remove the bolts - 2 - (25 ± 3 Nm) from the A/C compressor - 1 -.






- Remove the engine cover.

Hybrid vehicles have a high voltage system. Danger of electrical shock! Inspect the high voltage components visually before beginning. Follow the General Warnings.

- Remove the power and control electronics for the electric drive.

- Remove high voltage wire - 1 - from the A/C compressor - arrow B -.






• Do not turn the connector. Danger of causing damage.

- Remove the connector - arrow - from the A/C compressor.






Danger due to refrigerant coming out under pressure.

Danger of frost bite to skin and other parts of the body.

• Extract the refrigerant and immediately open the refrigerant circuit after that.

• If the refrigerant was extracted more than 10 minutes in the past and the refrigerant circuit was not opened, extract the refrigerant again. Pressure in the refrigerant circuit is caused by evaporation.

- Loosen the nut (8 ± 0.9 Nm) and open the clamp - arrow -. Remove the bolt - 1 - (12 ± 1.5 Nm). Remove the low pressure line - 2 - on top of the engine and seal it with a plug.






- Remove the bolt - 1 - (20 ± 3.0 Nm) and the high pressure line - 2 - from the A/C compressor and seal it with plug.






- Remove top bolt - 1 - (25 ± 3 Nm) from the A/C compressor - arrow -.






- Turn the A/C compressor slightly to the right - arrow 1 - and guide in the direction of the radiator - arrow 2 -.

Pay attention to both alignment sleeves between the engine block and the A/C compressor.






- Turn the A/C compressor approximately 90° to the right and remove upward with the front side first - arrow -.






- Remove screw - 2 - (20 ± 3.0 Nm) and remove the low pressure line - 1 - from the A/C compressor.






Installation






• Inspect the attachment points for the A/C compressor and engine prior to installing.

• The contact surfaces must be clean and rust and grease-free.

• Otherwise, repair the contact surfaces with the Contact surface cleaning set (VAS 6410).

- Install the low pressure line - 1 - on the new A/C compressor, tighten the bolt - 2 - (20 ± 3.0 Nm) and install the A/C compressor in reverse order of removal.

Pay attention to both alignment sleeves between the engine block and the A/C compressor.

• Check the amount of the refrigerant oil in the A/C compressor if the A/C compressor control module (J842) is faulty. Do not flush the refrigerant circuit with R134a.