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 wash primer
Designation: 2-pack wash primer -LHV 043 000 A2- Issued 10.2010 Product description The 2-pack wash primer is a zinc chromate-free, phenol-free, acid-curing two-pack w ...

Checking seat belts
WARNING The seat belt system must be inspected systematically after every accident! If damage is determined at any of the points to be checked, customer must be informed regarding necessity of changing belt ...

Removing and installing humidity sender for air conditioning system -G260-
The humidity sender for air conditioning system -G260- and the light/rain sensor -G397- form one component and are installed depending on vehicle equipment. – Removal and installation procedure is described in → E ...