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:

Safety precautions when working on cooling system
Risk of scalding due to hot coolant The cooling system is under pressure when the engine is hot. Hot steam/hot coolant can escape - risk of scalding. – Wear protective gloves. – Wear eye protection. – ...

Removing and installing tail light bulb -M2-/-M4-
Note Removal and installation are described for the left side. Removal and installation on the right side are carried out in the same way. Removing – Turn light switch to “0” position. ...

Assembly overview - subframe, multi-link suspension, front-wheel drive, except for e-Golf
1 - Subframe Removing and installing subframe with attachments → Chapter 2 - Bolt Renew after removing 70 Nm +180° 3 - Bolt Re ...