Audi Q7: Checking and Filling

 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 point), the amount of refrigerant oil lost and the amount of moisture penetrating is not sufficien

 Refrigerant Circuit Pressures and Temperatures

General Information   Caution When performing work on refrigerant circuit, observe all generally applicable safety precautions and pressure container regulations. The pressures and temperatures in the refrigerant circuit depend on the current operating conditions (such as engine RPM, cool