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:

Safety markings on battery
Safety markings on battery 1. - Fires, sparks, naked flames and smoking are prohibited when handling batteries. Avoid sparks as well as electrostatic discharge when working with cables and electrical units. Avoid short ci ...

Removing and installing rear treble loudspeakers -R14-/-R16-, 4-door
Rear left treble loudspeakers -R14-/rear right treble loudspeakers -R16- are located in rear door trim panels. Note If the treble loudspeaker must be renewed, the loudspeaker grille must also be renewed. ...

Charging container in air conditioner service station with refrigerant
Always follow the procedure described in the user's manual for your air conditioner service station. For every air conditioning system, a certain amount of refrigerant is prescribed as the required charge To ensure that the system ...