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:

Adjusting striker pin
Special tools and workshop equipment required Torque wrench -V.A.G 1331- Note Threaded plate -1- of striker pin is secured in pillar using a method which differs f ...

Removing and installing bonnet release lever
Removing – Tighten release lever -1- and unlock bonnet. – Insert a small screwdriver in gap between release lever -1- and retaining clip -2-. – Lever re ...

Assembly overview - control units, LHD vehicles
1 - Control unit Versions with parking aid: Parking aid control unit -J446- Assembly overview → Chapter Versions with park assist steering: Park assist steering control unit -J791- ...