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General information on refrigerant circuit > < Basic rules for working on refrigerant circuit|O-rings

A4 Mk3

Before using air conditioner after system has been re-charged
Before using air conditioner after system has been re-charged
Mechanically driven air conditioner compressor
–  Give the air conditioner compressor approx. 10 turns by hand by way of the magnetic clutch plate or the pulley.
–  Start the engine with the air conditioning system switched off (air conditioning system magnetic clutch -N25- and air conditioner compressor regulating valve -N280- are not actuated).
–  Switch on the air conditioner compressor once the idling speed has stabilised and run it for at least 10 minutes at idle in the maximum cooling output setting.
Electrically driven air conditioner compressor
–  After charging the refrigerant circuit, an electrically driven air conditioner compressor is first to be started up by way of the „Compressor run-in“ function of the basic setting routine → Vehicle diagnostic tester, „Guided Fault Finding“ function for air conditioner and battery regulation
   

General information on refrigerant circuit > < Basic rules for working on refrigerant circuit|O-rings