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 fuel rail
Removing The fuel system is under high pressure.Risk of injury due to fuel which may spurt out.Release high pressure. → Chapter Risk of functional impairment due to soiling → Chapter. ...

Opening and closing the bonnet
Fig. 190 In the footwell on the driver side: lever for releasing the bonnet Fig. 191 Release lever for opening the bonnet above the radiator grille First read and observe the introductory information and safety warnings Opening the bonnet Ensure that the windscreen wiper arms are pos ...

Removing and installing front bass loudspeakers -R21-/-R23
The front left bass loudspeaker -R21- and the front right bass loudspeaker -R23- are located in the front doors (bottom). Note Removal and installation are described for the left side. Removal and installation on the right side ...