Volkswagen Golf 1999 Service Manual page 4068

Components, replacing
Compressor, replacing without the need for
flushing refrigerant circuit with compressed air
and nitrogen (e.g. in the event of external
damage following an accident)
- Discharge refrigerant circuit.
- Remove A/C compressor.
- Remove oil drain plug from compressor.
Note:
- The oil drain plug of "Denso" (Nippondenso) compressors
is equipped with an oil seal instead of an O-ring and this is
always to be replaced.
Parts Catalog
- To accelerate drainage of refrigerant oil, rotate
compressor e.g. by way of clutch plate of A/C clutch for
example.
- Pour old refrigerant oil out of compressor (observe
disposal HSO Environment Vol. 2-2. 43. 1 ).
- Remove oil drain plug from replacement compressor,
pour out refrigerant oil and only add a quantity of fresh
refrigerant oil equal to the amount poured out of the
malfunctioning compressor.
Note:
- If, for example, 70 cm
out of the malfunctioning compressor and 220 cm
the replacement compressor (a small quantity of refrigerant
oil remains in the compressor). Fill the compressor to be
installed with 70 cm
oil poured out of replacement compressor).
- Use different refrigerant oils and quantities for the various
compressors
Repair Manual, Heating & Air Conditioning, Repair
Group 87 ,
- If a greater quantity of refrigerant oil (more than approx.
3
80 cm ) has been poured out of the malfunctioning
compressor, the remaining refrigerant oil can also be
added to the evaporator or reservoir/receiver
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...
3
of refrigerant oil has been poured
3
of refrigerant oil (use can be made of
3
out of
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13/2/2005