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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> Air Conditioning (Refrigerant R134A Servicing) (2 Of 2) >> 87 Air Conditioning >> Refrigerant Circuit General Information >> Refrigerant Circuit Components Allocation, High And Low Pressure Sides >> Condenser

Refrigerant Circuit Components Allocation, High And Low Pressure Sides: Condenser

The condenser conducts heat from compressed refrigerant gas to the ambient air.

Fig 1: A/C Condenser
GWWV87-1450Courtesy of AUDI OF AMERICA, LLC

This condenses the refrigerant gas to fluid.

NOTE:

Depending on the version of the refrigerant circuit, the receiver/dryer is installed (integrated) either on the condenser or inside the condenser. Refer to Refrigerant Circuit and the Parts Information).

The condenser is available in different versions and can be differentiated only by the part number on the outside. For version -1-, the condenser is divided into two areas "2 way condenser". For version -2-, the condenser is divided into four areas "4 way condenser".

Fig 2: Identifying Condenser With Fluid Reservoir Installed
GWWA87-11519Courtesy of AUDI OF AMERICA, LLC

This illustration shows a condenser with the receiver/dryer -C- installed.

The gaseous refrigerant enters at the connection -A- into the condenser. The refrigerant is then cooled inside the condenser and becomes fluid.

The liquid refrigerant collects in the receiver/dryer -C- (with dryer) and flows through the lower cooling area towards the connection -B-.

Depending on the design of the condenser (interior volumes, delivery flow, etc.), the amount of the refrigerant that is needed to fill the refrigerant circuit may vary. Therefore always be sure of the correct version and allocation for the condenser. Refer to the appropriate service information and the Parts Information.