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:

Hydraulic system
General notes on brake fluid Only use new brake fluid conforming to VW standard (VW 501 14). Note Brake fluid is poisonous. Also due to its corrosive effect brake fluid must not come into c ...

Removing and installing spray jet, GTI, GTD and »R«
Note The spray jet is installed in the high-level brake light. Removing: – Remove high-level brake light → Chapter. –&nbs ...

Warning and indicator lamps
First read and observe the introductory information and safety warnings Lit up Possible cause Solution Gearbox fault. Do not drive on! Move the selector lever to position P and leave the gearbox to cool down. If ...