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:

Aquaplus system, uni (solid-colour) and metallic colours
Designation: Uni (solid-colour) waterborne mixing paint -LWM 075 ...- Metallic waterborne mixing paint -LWM 076 ...- Uni (solid-colour) waterborne base coat -LUW/LWG 038 ...- ...

Removing and installing glove compartment cover
Removing – Remove glove compartment → Chapter. – Place glove compartment on a soft surface. – Move glove compartment lid to service position U ...

Safety precautions when using testers and measuring instruments during a road test
Risk of injury through insecure testing and measuring instruments When the front passenger airbag is triggered in an accident, insufficiently secured testing and measuring instruments become dangerous projectiles. – Secure testing and measuring in ...