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:

Corrosion protection for body components, add-on components and welded components
Attachments Wings, doors, covers and flaps must be coated completely on the inside as well. One wet-in-wet spray pass is adequate for this. Before installing, add-on parts must be sealed with cav ...

Technical data
Brake master cylinder and brake servo Brake master cylinder, depending on engine type Diameter in mm 23.81 or 25.4 Brake servo (LHD), depending on engine type Diameter in inches 10 or 11 Brake servo (RHD) Diameter in ...

Assembly overview - wheel bearing assembly, torsion beam axle
1 - Dust cap Renew after removing Pressing off and driving in → Chapter A proper seal can be achieved only by installing a new dust cap. 2 - Bolt Renew after remov ...