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 cover cap, without lock cylinder
Note The cover cap is installed when no lock cylinder is fitted. Removing Special tools and workshop equipment required Assem ...

Removing and installing throttle valve module -GX3-
Throttle valve module -GX3- consists of Throttle valve module -J338- Throttle valve drive for electronic power control -G186- Throttle valve drive angle sender 1 for electronic power co ...

Removing and installing rear bumper aerial for entry and start system -R136-
Removing – Remove bumper cover → General body repairs, exterior; Rep. gr.63. – Lift areal -1- slightly in direction of arrow -A-. ...