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:

Acoustic and optical ParkPilot signals
Fig. 150 ParkPilot display of the area around the vehicle (colour) Fig. 151 Mini ParkPilot display of the area around the vehicle (colour) First read and observe the introductory information and safety warnings Key and Meaning ...

Performing maintenance test
WARNING It is not permissible to test or charge batteries whose colour indicator is light yellow. Do not slave/jump start the vehicle! Danger of explosion when checking and charging ...

Removing and installing gas strut
Removing – Open and support bonnet. WARNING Proceed with care if gas strut is reused. Spring clip must not be levered completely out of ball socket, as it will otherwise be damaged. Gas strut will spring ou ...