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:

Air conditioner compressor without magnetic clutch
The air conditioner compressor is driven by a V-belt from the engine. A shear link is incorporated in the air conditioner compressor V-belt pulley. In the event of stiffness in the air conditioner compressor, it shears off and protects t ...

Connecting brake pedal to brake servo
Hold ball head of plunger rod in front of mounting and push brake pedal in direction of brake servo, so that the ball head clicks into place. – Check engagement by pulling briefly on brake pedal. ...

Removing and installing plenum chamber bulkhead
Special tools and workshop equipment required Torque wrench -V.A.G 1783- Removing – Removing plenum chamber cover → Chapter. ...