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:

Assembly overview – wiper motor and wiper frame
Note The illustration shows fitting locations for LHD vehicles. Fitting locations for RHD vehicles are similar. 1 - Wiper motor Removing and installing → Chapter 2 - Bolts ...

Removing and installing tank flap unit
Removing – Screw off tank cover. – Remove bolt -3-. – Slightly pull tank flap unit towards rear -arrow a- out of catches. – Swing tan ...

Safety precautions when working on fuel supply system
Risk of injury due to highly-pressurised fuel. The fuel system is under high pressure. Risk of injury due to fuel which may spurt out. – Release high pressure before opening the fuel system. & ...