Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

General information for A/C system
Página 18 de 19
Repair Manual, Heating & Air Conditioning, Repair
Group 87 ,
Parts Catalog
- Use O-rings only once.
- Before installing O-rings, coat lightly with refrigerant oil
(PAG oil).
Note:
- When flushing components with compressed air and
nitrogen, always extract the gas mixture escaping from the
components using suitable extraction units (workshop
extraction system).
- After ending all service work, screw sealing caps (with
seals) onto all connections with valve and service
connections.
Before starting up A/C system. Observe vehicle specific
filling capacities
Repair Manual, Heating & Air Conditioning, Repair
Group 87 ,
.
Do not top off refrigerant, extract refrigerant present and fill
the system anew.
Before starting up A/C system after fresh
charging
- After installing a new A/C compressor or fresh refrigerant
oil has been filled into compressor (e.g. after flushing the
A/C system), turn ribbed belt pulley of A/C compressor 10
rotations by hand before starting the engine. This prevents
damage to the A/C compressor
- For 5-cyl. and 10 cyl. diesel engines, rotate A/C
compressor 10 rotations by hand at overload safeguard.
After that, install A/C compressor. This prevents damage to
the A/C compressor
- Start engine with A/C system ( A/C Clutch N25 and A/C
Compressor Regulator Valve N280 ) switched off.
- Following engine idling speed stabilization, switch on A/C
compressor and run it for at least 10 minutes at idling
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13/2/2005