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:

Checking holding pressure
Special tools and workshop equipment required Pressure tester -VAS 6550- Removal wedge -3409- Connector cable -VAS 6550/3-3- Connector cable -VAS 6550/3-4- Vehicle diagnostic tester ...

Removing and installing B-pillar trim, 4-door models and estate
Special tools and workshop equipment required Wedges -T10383 Torque wrench -V.A.G 1783- Removing Upper part o ...

Installing repair kit for headlight housing, does not apply for LED headlights
Special tools and workshop equipment required Torque wrench -V.A.G 1783- Torque screwdriver -VAS 6494- N ...