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A/C compressor

NOTE: The manufacturer "Nippondenso" has changed its name to "Denso."

The compressor is driven via a ribbed 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.

The variable displacement A/C compressor varies piston stroke and output depending on load requirements and suction pressure.

Fig 1: View Of A/C Compressor
G02722692Courtesy of AUDI OF AMERICA, INC.
NOTE:
  • The compressor contains PAG refrigerant oil that is mixable under all temperatures with refrigerant R-134a.
  • A label on the compressor indicates that the compressor is for R-134a systems only.
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