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:

Checklist
The following actions must always be carried out in the given order in preparation for filling a tyre : If you get a flat tyre, park your vehicle on a firm and level surface at a safe distance from the flow of traffic. Switch on the electronic parking brake Braking, stopping and ...

Removing and installing floor covering
Removing – Remove front seats → Chapter. – Remove rear bench seat → Chapter. – Remove sill panel mouldings → Chapter ...

Primary locking element
The primary locking mechanism is what fixes an individual crimp contact in the contact housing. If necessary, any housing catches in place (secondary locking mechanisms) must be released or removed prior to disengaging the contacts using ...