Removing and installing air conditioner compressor, vehicles with 4-cyl. engine — AUDI

🧭 Before you start

Fits: Audi A4 B9 (8W, 2015–)

• Opens: refrigerant (A/C)

📋 Procedure

1. ⚠ Only to be opened or removed after draining the refrigerant circuit; the vehicle is to be taken to a workshop equipped with the necessary tools where the work can be performed by appropriately qualified personnel Air conditioner with refrigerant R134a87General information on air conditioner. — Switch off the ignition.
2. Drain the refrigerant circuit Air conditioner with refrigerant R134a87Refrigerant circuit.
3. Remove the front noise insulation General body repairs, exterior66Noise insulation; Removing and installing noise insulation.
4. Detach the refrigerant lines from the air conditioner compressor .
5. Detach the air conditioner compressor.

6. Thoroughly clean the contact surfaces at the air conditioner compressor.
7. Insert the dowel sleeves (arrows) in the air conditioner compressor. [Note: Pay attention to correct positioning of the dowel sleeves as well as to clean contact surfaces. Incorrectly fitted dowel sleeves or dirty/damaged contact surfaces could lead to misalignment between the air conditioner compressor and engine. In the course of operation, misalignment results in damage at the air conditioner compressor.The air conditioner compressor removed contains an indeterminate amount of refrigerant oil. Attention is therefore to be paid to the notes on air conditioner compressor replacement Air conditioner with refrigerant R134a87Replacing refrigerant circuit components.]
8. After fitting a new air conditioner compressor or pouring in fresh refrigerant oil and before fitting the poly V-belt (e.g. after cleaning the refrigerant circuit), crank the air conditioner compressor 10 times by hand prior to initial start-up of the engine so as to prevent compressor damage.
9. Attach the refrigerant lines to the air conditioner compressor .
10. Evacuate and charge the refrigerant circuit Air conditioner with refrigerant R134a87Refrigerant circuit.
11. Start up the air conditioner after charging the refrigerant circuit Starting up air conditioner after charging refrigerant circuit. [Note: Also heed the information on start-up of the air conditioner after charging Air conditioner with refrigerant R134a87General information on air conditioner.]
12. Interrogate the event memory of the front air conditioner operating and display unit E87 and erase any faults displayed .

Other AUDI procedures

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• Removing engine – Audi A8 D3 · 41 torque figures
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• Removing and installing air filter element (left-side, cylinder bank 2)
• Removing and installing chain tensioner for camshaft timing chain
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• Removing and installing three-point seat belt (rear) in rear seat backrest