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:

Leaks at shock absorbers
Shock absorbers are often replaced because of externally visible leakage. Inspections on the test rig and in the vehicle have shown that in the majority of cases this replacement is not justified. Slight loss of fluid (“sweating”) at ...

Removing and installing front air distribution flap actuation unit, Climatronic
Removing – Remove dash panel → General body repairs, interior; Rep. gr.70. – Remove the air duct for the defroster vent → Chapter. – ...

Overview of fitting locations – control units, front of RHD vehicles
1 - Headlight range control unit -J431-/control unit for cornering light and headlight range control -J745- Assembly overview → Chapter 2 - Interface for entry and start system -J965- Assembly ...