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:

Cleaner for plastics
Designation: Cleaner for plastics -D 195 850 A1- Issued 04.2009 Product description The cleaner for plastics -D 195 850 A1- is a liquid universal cleaner and thinner/reducer ...

Matching wheel rims and tyres
If necessary, eliminate flat spots caused by storage or handling → Chapter. – Press tyre off wheel rim → Chapter. – Rotate tyre by 180° relative to wheel rim. ...

Removing and installing wheel bearing unit, multi-link suspension, front-wheel drive
Special tools and workshop equipment required Fitting sleeve -3241/4- Hub grease cap puller -VW 637/2- Torque wrench -V.A.G 1332- Tool insert -T10162 A- Torque wrench -V.A.G 1410- ...