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 front footwell light -K268-, driver side
Removing – Using a flat screwdriver, press in locking lug -1- at point indicated by arrow -A-. – Lever out footwell light -2-. –& ...

Emptying fuel tank if it is less than 3/4 full
Special tools and workshop equipment required Removal wedge -3409- Wrench -T10202- Torque wrench -V.A.G 1332- Fuel extractor -VAS 5190- Fuel extractor -VAS 5190 A- for E 85 fuel (not shown). &nb ...

Removing and installing fuse holder, battery
Removing – With ignition switched off, disconnect earth cable from battery → Chapter. – Open cover -1-. – ...