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 automatic distance control unit, variant 1
Note If the automatic distance control unit -J428- is renewed, start the respective function → Vehicle diagnostic tester. Special tools and workshop equipment required ...

Removing and installing track rod
Special tools and workshop equipment required Torque wrench -V.A.G 1332- Open-end insert, 38 mm -V.A.G 1923- Ball joint puller -T10187- Locking pliers for Phaeton steering rack -VAS 6199- ...

Display and indicator lamps
Fig. 160 Instrument cluster display: cruise control (CCS) status display First read and observe the introductory information and safety warnings CCS displays Status : CCS switched off temporarily. The stored speed is shown in small numbers or displayed in a darker shade. System ...