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 door arrester
Special tools and workshop equipment required Note Removal and installation are only described for the left door retaining strap. The right side is similar. Removing ...

Checking child seat anchors after an accident
Points to check Child seat anchors must be checked for damage and deformation after an accident. Child seat anchors welded to the body or the seats/backrests or bolted in place may not be repaired or straightened. ...

Assembly overview - belt pulley, Sanden air conditioner compressor
1 - Nut 25 Nm Note In order to protect the thread of the air conditioner compressor drive shaft an additional plastic cap is fitted (not shown in illustration). – To unfasten and tighten the hex ...