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:

Checking and adjusting selector lever cable
Brief description Selector lever cable must be removed from gearbox so that its ease of movement can be checked. Put removed end down so it does not rub against anything. The selector lever must be moved and then the cab ...

Removing and installing valve stem seals (cylinder head installed)
Special tools and workshop equipment required Spark plug socket and extension -3122 B- Removal and installation device for valve ...

Overview of fitting locations - auxiliary heater
1 - Auxiliary heater With auxiliary heater control unit -J364-. Removing → Chapter 2 - Nut 20 Nm 3 - Electrical connectors 4 -&nbs ...