Audi A4 Owners & Service Manuals

Audi A4: Refrigerant Circuit Components, Replacing


 General Information

Vehicles with a High Voltage System (Hybrid Vehicles) Extremely Dangerous Due to High-Voltage The high-voltage system is under high-voltage. Death or serious bodily injury by electric shock. - I

 Leaking or Damaged Components except A/C Compressor, Reservoir or Receiver/Dryer

The refrigerant circuit was completely empty (for example with larger leak or cracked hose)   Note In the event of only a minor leak with slow escape of refrigerant (e.g. at a small leakage

 Compressor, Replacing without the Need for Flushing Refrigerant Circuit

  Note Cleaning the refrigerant circuit means flushing with refrigerant R134a. Refer to → Chapter "Refrigerant Circuit, Cleaning (Flushing), with Refrigerant R134a". If a faulty A/C


 Floor Heat Shield, Removing and Installing

Plenum Chamber Bulkhead Heat Shield, Removing and Installing Removing - Remove the plenum chamber bulkhead. Refer to → Chapter "Plenum Chamber Bulkhead, Removing and Installing". - Remove the lock washers -arrows-. - Remove the heat shield -1- from the plenum chamber bulkhead

 Inner CV Joint, Checking

It is necessary to disassemble the joint whenever replacing the grease or if the ball surfaces show wear or damage. Disassembling   Note Ball hub and joint are paired and should be identified before removal. Do not interchange ball race allocation. - Tilt the ball hub and ball cage. -&n

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