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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 B >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Heating & Air Conditioning (A3 Platform)) >> Air Conditioning >> A/C refrigerant system (R134a), servicing >> A/C refrigerant system, component functions >> Compressor

A/C refrigerant system, component functions: Compressor

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The compressor is driven via a belt on the engine when the A/C clutch engages (A/C ON).

Low-pressure refrigerant gas from the evaporator is compressed by the compressor. After compression, the refrigerant gas (now high-pressure) flows to the condenser.

NOTE:
  • The compressor contains refrigerant oil (PAG oil) that is mixable under all temperatures with R-134a refrigerant.
  • A label on the compressor indicates that compressor is for R-134a systems only.
    Fig 1: Identifying Compressor
    G03363971Courtesy of VOLKSWAGEN OF AMERICA, INC.
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