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 condensation drainage (LHD)
Removing – Remove right centre console trim in footwell → General body repairs, interior; Rep. gr.68. Risk of damage to airbag control unit. Connectors may corrode if moisture enters.After disconnecting, ...

Instrument overview
Fig. 12 Instrument cluster in the dash panel First read and observe the introductory information and safety warnings Descriptions of the instruments : Rev. counter (running engine speed in revolutions x 1,000 per minute). The start of the red zone on the dial indicates the ma ...

Removing and installing bracket for onboard supply control unit -J519-, RHD vehicles
Removing – With ignition switched off, disconnect earth cable from battery → Chapter. – Remove dash panel → General body repairs, interior; Rep. gr.70. ...