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:

Assembly overview - Lambda probe
Note New lambda probes are coated with an assembly paste. This paste must not get into the slots on the Lambda probe body. In the case of a used Lambda probe grease only the thread with high-temperature paste. This p ...

Assembly overview - backrest release mechanism and entry assistance
1 - Connecting Bowden cable Between backrest release mechanism and mounting bracket for backrest release mechanism Removing and installing → Chapter 2 - Trim for backrest release mechanism Removing and installing ...

Removing and installing intermediate padding, backrest with through-loading aperture
Removing – Fold down lid for through-loading aperture. – Release locking lugs -1- using a screwdriver and at the same time push down intermediate padding -2- as far as stop -arrow A-. ...