A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001)
Compressor Fitting HVAC: Description and Operation
Refrigerant System (R-134a), Components
High Pressure Service Valve Assembly
A -
Service valve connection (located on condenser inlet line)
B -
Schrader valve insert
C -
O-ring seal
D -
Cap with seal
NOTE:
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Only a high pressure service valve is used for A/C system servicing. A low pressure service valve is not installed in the A/C system. Perform all
A/C system service operations (i.e discharging, evacuating, and charging) through the high pressure service valve only.
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Use only the specified R-134a quick coupling connectors when servicing the refrigerant system.
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Before removing the valve insert from the high pressure service valve, discharge refrigerant system.
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Always reinstall cap -D- over service valve.
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Illustration shows the condenser from an Audi 100 model.