Passat Sedan L4-1781cc 1.8L Turbo (AEB) (1999)
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High Pressure Safety Valve HVAC: Testing and Inspection
Pressure Relief Valve - Zexel Compressor, Checking
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Function: Protects refrigerant circuit from over-pressure.
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Refrigerant oil deposited on rear of compressor indicates pressure relief valve has opened to release pressure -arrow-. An adhesive plate is pushed
out.
