Volkswagen Golf Service & Repair Manual: Pipes and hoses in refrigerant circuit

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / General information on refrigerant circuit / Refrigerant circuit components / 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 joints or special push-fit joints.

Note

When assembling screwed joints, be careful to comply with the prescribed torques, and when working on push-fit joints, be careful to use the disconnection tools provided.

O-ring

These O-rings seal the joints between the individual components of the refrigerant circuit. Use only seals that are resistant to refrigerant R134a an ...

High-pressure safety valve

The high-pressure safety valve is fitted to the air conditioner compressor or the receiver. The valve opens at a pressure above approx. 38 bar and ...

Other materials:

Removing and installing anti-theft alarm sensor -G578-, version with 4 bolts
Special tools and workshop equipment required Removal wedge -3409- Removing Caution Danger of damage to compo ...

Removing and installing dash panel end cover
Note Removal and installation is described for the dash panel end cover on driver side. Follow same instructions for the front passenger side as appropriate. Special tools and workshop equipment required &n ...

Removing tyre from wheel
Tyres which have been filled or sealed using tyre sealant must be drained before removal. Caution Avoid eye and skin contact with tyre sealant. It is a ...