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:

Removing and installing wheel housing trim, estate
Note Removal and installation are described for the left vehicle side. Follow same instructions for the right side as appropriate. Special tools and workshop equipment required ...

Changing a wheel
Fig. 226 Changing a wheel: removing the wheel bolts with the screwdriver handle First read and observe the introductory information and safety warningsRemoving the wheel Read the checklist. Loosen the wheel bolts. Jack up the vehicle. Using the hexagonal socket in the scr ...

Draining refrigerant circuit using air conditioner service station
WARNING High-voltage on high-voltage system. Danger of electric shock on air conditioner compressor! Models with a high-voltage system: now de-energise the high-voltage system ...