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:

Repairing rain and light sensor, Valeo
Remove rain and light sensor -G397- → Chapter. – Carefully remove sensor foil -2- or any sensor foil residues from rain and light sensor -G397--1-. ...

Removing and installing tyre pressure sensor, tyre pressure sensor with valve
Removing – Unscrew union nut -1-. – Remove tyre pressure sensor-2- from bed of wheel rim. Installing ...

Extraction and charging valve, low-pressure side
Note Torque wrench -V.A.G 1783- with 1/4" ratchet adapter -VAS 6234- Appropriate insert -T10364- to remove valve core → Fig. 1 - Connection with external thread and gr ...