Passat Syncro Sedan V6-2771cc 2.8L DOHC (AHA) (1999)
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High Pressure Safety Valve HVAC: Testing and Inspection
Pressure Relief Valve - Denso Compressor, Checking (6-cyl. Engines)
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Function: Protects refrigerant circuit from over-pressure.
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Refrigerant oil deposited in area of compressor manifold indicates pressure relief valve has opened to release pressure - arrow-. An adhesive plate
is pushed out.