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Detaching compressor from holder/attaching > < Removing and installing high-pressure sender G65

A4 Cabriolet Mk2

O-rings for refrigerant circuit
O-rings for refrigerant circuit
t  Always replace, only to be used once.
t  Moisten slightly with refrigerant oil before fitting.
t  Ensure correct positioning on pipe/in groove.
t  Ensure cleanliness when working.
  Note
t  Only O-rings which are resistant to refrigerant R134a and the corresponding refrigerant oil may be installed. Such O-rings are colour coded to prevent mix-ups (currently “red”, “lilac” or “violet”): → Parts List
t  In addition to the coloured O-rings, black O-rings are also used at the factory for certain connections.
   
t  Dimensions -a- and -b- differ depending on fitting location of O-ring: → Parts List
t  In January 2003, the connections between the refrigerant pipes and the various components (condenser, evaporator etc.) were converted from radial/axial sealing to radial sealing. It is only permissible to combine components with the same type of seal and the corresponding O-rings (different versions). Reliable sealing of the joints cannot be ensured if components with different forms of sealing are fitted. → Parts List
  A87-0021

Detaching compressor from holder/attaching > < Removing and installing high-pressure sender G65