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:

Permanent underbody protection -D 314 D36 M2-, grey
Designation: Permanent underbody protection -D 314 D36 M2-, grey Issued 02.2010 Product description, permanent underbody protection -D 314 D36 M2-, grey Permanent underbody p ...

Evacuation and charging valve with Schrader valve
Note Torque wrench -V.A.G 1783- with 1/4" ratchet adapter -VAS 6234- Appropriate insert -T10364- to remove Schrader valve core → Fig. A - Service port (soldered in) ...

Fitting single wire seals
Note Single wire seals prevent the ingress of moisture and dirt in the contact housing. They are installed, for example, in the engine compartment and must always be reinstalled following repairs. As standard, ...