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:

Run-flat tyres, structure of a PAX tyre
Run-flat tyres (PAX) are specially developed tyres that differ from conventional tyres as follows: PAX tyre with support ring – -I- Pax tyre with regular tyre pressure ...

Removing and installing dash panel vents
Special tools and workshop equipment required Front-end hook -3370 Removal wedge -3409 Removing ...

Removing and installing trim for locking mechanism
Special tools and workshop equipment required Removal wedge -3409- Hook -T10538- Removing Note ...