VW Golf manuals

Volkswagen Golf Service & Repair Manual: O-ring

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.
Check that the O-rings used have the correct internal diameters.
→ Rep. gr.87
→ Parts catalogue
Never reuse O-rings.
Before installing, moisten O-rings lightly with refrigerant oil (PAG oil).
  Note
When purging components with compressed air and nitrogen, always collect the gas mixture exiting the component with suitable exhaust gas extraction equipment (workshop fume extractor).
After completion of repair work screw sealing caps (with seals) onto valve and service connections.
Before operating the air conditioning system. Check the vehicle-specific charge quantities → Rep. gr.87.
Do not top up a charged refrigerant circuit; discharge refrigerant present and recharge system.
Basics for working on refrigerant circuit
Observe instructions specific to the workplace; → Volkswagen ServiceNet; Handbooks; Service handbook; Environmental protection. Refrigerant from air c ...

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 r ...

Other materials:

Checking valve timing, engine codes CHPA, CMBA, CPVA, CXSA, CZCA, CPVB, CZDA
Special tools and workshop equipment required     Torque wrench -VAS 6583-   Locking pin -T10340-   ...

Removing and installing fresh air intake, RHD vehicles
Removing –  Remove plenum chamber cover → General body repairs, exterior; Rep. gr.50. –  Remove cover for fresh air intake → Chapter. –  ...

Engine oil specification
First read and observe the introductory information and safety warnings The engine oil used must correspond exactly to specifications. The correct engine oil is important for the function and service life of the engine. A special high quality multigrade oil has been filled at the factory and ...

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