Audi A4 Owners & Service Manuals

Audi A4: Refrigerant Circuit Components Allocation, High and Low Pressure Sides

Audi A4 (B9) 2016-2024 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit General Information / Refrigerant Circuit Components Allocation, High and Low Pressure Sides


 General Information

High pressure side are the condenser, receiver/dryer and restrictor or expansion valve to separate the high and low pressure liquid ends. High pressure results from the restrictor or expansion valve


The condenser conducts heat from compressed refrigerant gas to the ambient air. This condenses the refrigerant gas to fluid.   Note Depending on the version of the refrigerant circuit, the r


The reservoir collects the vaporized and gaseous mixture coming from the evaporator to ensure the compressor only receives gaseous refrigerant. Gaseous refrigerant is formed from the vapor. The ref


 Refrigerant Circuit, General Precautions

General Information Ensure absolute cleanliness when working. Wear safety goggles and gloves when working with refrigerant and nitrogen. Workshop extraction systems are to be switched on. Use the service station to discharge the refrigerant circuit, only then open screw connections and replac

 Overview - Drive Axle

1 - Cap Carefully drive off using a drift Replace if damaged Adhesive surface must be free of oil and grease Coat the sealing surface with Sealant -D 454 300 A2- before installing on CV joint. 2 - Circlip Replace after removing Insert in shaft groove 3 - In

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