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:

Synchronising the vehicle key
First read and observe the introductory information and safety warnings It may no longer be possible to lock or unlock the vehicle with the remote control if the button is pressed repeatedly outside of the effective range of the vehicle key. If this is the case, the vehicle ke ...

Removing and installing light for rear interior light -W43- with LED
Note The lights used for the rear interior light -W43- are the same as the rear left and rear right reading lights -W11-/ -W12-. If the rear interior light -W43- is defective, the complete interior light must b ...

Tyre damage
First read and observe the introductory information and safety warnings Damage to tyres and rims is often not readily visible. Any unusual vibrations or signs that the car is pulling to one side may indicate that one of the tyres is damaged . Reduce your speed immediately if you susp ...