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:

Anti-corrosion wax
Designation: Anti-corrosion wax -AKR 321 M15 4- Anti-corrosion wax -AKR 321 M16 10- Issued 04.2009 Product description Anti-corrosion wax -AKR 321 M15 ...

Installing roof reinforcement to body, estate without sliding sunroof
Special tools and workshop equipment required Electric cutter -V.A.G 1561A Scraping blade -V.A.G 1561/20 ...

Removing and installing steering column electronics control unit -J527-, Kostal
Note Airbag coil connector and return ring with slip ring -F138- is integrated in steering column electronics control unit -J527-. When renewing the control unit, select “Renew” function for the respec ...