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A/C Expansion Valve - Hissing/Groaning Noise|Page 5637 > < A/C Expansion Valve - Hissing/Groaning Noise

Passat Wagon V6-2792cc 2.8L DOHC (1994)

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Expansion Valve: Description and Operation

Expansion Valve 

The expansion valve restricts and controls refrigerant flow to the evaporator thus lowering refrigerant temperature and pressure.

Note:  The R-134a expansion valve is identified with a green adhesive label.

A/C Expansion Valve - Hissing/Groaning Noise|Page 5637 > < A/C Expansion Valve - Hissing/Groaning Noise