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:

Identification of Valeo heater and air conditioning unit
Note Pay attention to correct assignment when replacing components. The combination of different makes of component is not permitted → Electronic Parts Catalogue. – Remove left centre console trim ...

Cleaning wheels
First read and observe the introductory information and safety warnings Cleaning steel wheels Accumulated brake dust can only be removed with an industrial cleaner. Steel wheels should therefore be cleaned regularly with a separate sponge. Any damage to the paint on steel wheels should be t ...

Cleaning off excess adhesive
– Use adhesive remover -D 002 000. 10- as cleaning agent. Observe the appropriate safety precautions when performing this work. WARNING When cleaning the vehicle interior, do not press ...