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:

12 V socket
Removing and installing 12 V socket Caution If excessive force is exerted on sockets without illumination, the retaining sleeve may be damaged. Only illuminated sockets (cigarette lighter) ...

Tyre monitoring display
First read and observe the introductory information and safety warnings The tyre monitor display uses the ABS sensors to compare the rolling circumference and the vibration characteristics of the individual wheels. Any change in the tyre pressure of one or more wheels is shown by the tyre mo ...

Removing and installing rear 3-point seat belt, estate, without belt tensioner
Removing – Remove bench seat → Chapter. – Remove rear seat backrest → Chapter. – Remove D-pillar trim → Chapter. ...