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:

2-pack VHS hardeners and 2-pack VHS Performance hardeners
Designation: 2-pack VHS hardener -LHA 009 051 A2-/-LVM 009 051 A5- 2-pack VHS hardener, fast-drying -LHA 009 050 A2- 2-pack VHS hardener, slow-drying -LHA 009 052 A2-/-LHA 009 052 A3- ...

Checking condensation drainage
Checking – Remove right centre console trim in footwell → General body repairs, interior; Rep. gr.68. – Carefully fold back floor covering in area of condensation drain hose so ...

Removing and installing wheel housing trim, estate
Note Removal and installation are described for the left vehicle side. Follow same instructions for the right side as appropriate. Special tools and workshop equipment required ...