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:

Charging battery with battery charger -VAS 5903
WARNING Danger of injury! Observe warning notices and safety regulations → Chapter! WARNING It is not permissible ...

1-pack anti-corrosion wash primer
Designation: 1-pack anti-corrosion wash primer -ALN 002 003 10- Issued 06/2011 Product description 1-pack anti-corrosion primer is a zinc chromate-free one-pack produc ...

Assembly overview
Caution If excessive force is exerted on sockets without illumination, the retaining sleeve may be damaged. Only illuminated sockets (cigarette lighter) can be removed with the pull ...