Volkswagen Golf Service & Repair Manual: Before operating the air conditioning system after recharging with
refrigerant
| After installing a new air conditioner compressor or filling
with fresh refrigerant oil (e.g. after blowing out refrigerant
circuit), turn compressor pulley 10 revolutions by hand before
starting engine. This will prevent damage to the air conditioner
compressor. |
| – |
On 5-cyl. or 10-cyl. diesel engine, turn air conditioner
compressor at overload protection 10 times by hand. Then install
compressor. This will prevent damage to the air conditioner
compressor. |
| – |
Start the engine with the air conditioning system switched
off (the air conditioning system magnetic clutch -N25- and the
air conditioner compressor regulating valve -N280- are not
activated). |
| – |
After the engine has stabilised at its idling speed, switch
on the air conditioner compressor and allow the engine to idle
for at least 10 minutes at maximum cooling power. |
|
Use only O-rings that are resistant to refrigerant R134a and
related refrigerant oils. O-rings are no longer colour-coded.
Coloured and black O-rings are used.
...
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O-ring