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 air recirculation flap control motor -V113-, RHD vehicles
Heater and air conditioning system with electric/manual controls Special tools and workshop equipment required Vehicle diagnostic tester Note The control motor has end stops wi ...

Overview of fitting locations - front keyless entry system, RHD vehicles
1 - Front passenger door exterior handle With front passenger door exterior handle contact sensor -G416-. Removing and installing → Chapter With front passenger side aerial for entry and start system -R135-. Removing ...

Component protection
First read and observe the introductory information and safety warnings Some electronic components and control units are fitted with component protection as standard, e.g the radio or navigation system. Component protection was developed as a protective mechanism in order to: Prevent any ...