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:

Checklist
To ensure your own safety and the safety of your passengers, observe the following actions in the specified order : Find a firm and level surface suitable for lifting the vehicle. Switch off the engine. Select a gear if the vehicle has a manual gearbox, or move the selector lever ...

Assembly overview - rear seat backrest
1 - Rear seat backrest Allocation → Electronic Parts Catalogue Removing and installing → Chapter 2 - Lock For rear seat backrest Assembly overview → Chapter 3 - ...

Removing and installing heater and air conditioning unit
Special tools and workshop equipment required Torque wrench -V.A.G 1331/- (5…50 Nm) Hose clamps up to 25 mm -3094- ...