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Volkswagen Golf Mk7 Service & Repair Manual: Leaks or internal damage (e.g. noises or lack of power)

For internal Volkswagen Golf Mk7 compressor damage — noises or lack of power — this page requires purging with R134a refrigerant after removal, particularly if a different oil-type compressor is installed.

–  Drain refrigerant circuit.
–  Remove air conditioner compressor.
  Note
In the event of internal damage (to air conditioner compressor), purge with R134a refrigerant → Chapter.
If a different air conditioner compressor with other refrigerant oil is fitted, purge the refrigerant circuit with R134a refrigerant → Chapter.
–  Renew receiver / dryer cartridge and expansion valve or reservoir and restrictor. Only if there was no more refrigerant in the circuit.
–  If leaking, examine the expansion valve for dirt or corrosion; renew if necessary.
–  Assemble refrigerant circuit, evacuate and charge.

    Questions & answers

    Leaks or internal damage (e.g. noises or lack of power) — Volkswagen Golf Mk7

    How do I replace a Golf Mk7 AC compressor with internal damage?
    Drain circuit, remove compressor. Internal damage means metal particles may be in the circuit — purge all lines and renew the drier before recharging.
    Without needing to purge refrigerant circuit of contaminants (cleaning), e.g. in cases of external damage after an accident
    Drain refrigerant circuit. –  Remove air conditioner compressor.   Note If a different air conditioner com ...

    Renewing receiver or reservoir, and restrictor
    ...