Volkswagen Golf Service & Repair Manual: Inlet and exhaust valves

Removing and installing valve stem seals (cylinder head removed)

Special tools and workshop equipment required     Removal and installation device for valve cotters -VAS ...

Checking valve guides

Special tools and workshop equipment required     Universal dial gauge bracket -VW 387- &nb ...

Other materials:

Pipes and hoses in refrigerant circuit
The mixture of refrigerant oil and refrigerant R134a attacks certain metals (e.g. copper) and alloys and dissolves certain hose materials. Therefore, always use genuine replacement parts. The hoses and pipes are held together with screwed join ...

Infrared heater -VAS 6879
Designation: Infrared heater -VAS 6879- Product description: The infrared heater is used to dry putty, filler, base coat, top coat and clear coat on vertical or horizontal surfaces. ...

Leaks or internal damage (e.g. noises or lack of power)
–  Drain refrigerant circuit. –  Remove air conditioner compressor.   Note In the event of internal damage (to air conditioner compressor), purge with R134a refrigerant → ...