Audi A4: Electrical System

 Refrigerant Circuit, Discharging with Service Station

Work procedure may vary depending on the type of tools selected (the tool-specific operating instructions should therefore be followed). The refrigerant circuit is to be discharged if parts of the refrigerant circuit are to be removed, if there is any doubt about the quantity of refrigerant i

 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 compressor is replaced with an A/C compressor from another manufacturer check for the A/C compres