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:

Filling the tank with petrol, diesel or E85
Fig. 188 Open tank flap with tank cap attached to the holder First read and observe the introductory information and safety warnings Switch off the engine, ignition, mobile telephone and auxiliary heater before filling the tank and leave them switched off during refilling. Opening the ...

Removing and installing rear underbody cover – petrol/diesel
Note The removal and installation procedures may have to be modified slightly depending on engine fitted. – Loosen lock washer -3-. – Unclip spreader rivet -2- and remove bolt -4-. – Remove rea ...

Removing and installing headlight dipped beam bulb (dual halogen headlights)
Note Left headlight dipped beam bulb -M29- and right headlight dipped beam bulb -M31- are only fitted on dual halogen headlights. Removal and installation are described for the left side. Removal and installati ...