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:

Removing and installing locking mechanism for rear seat backrest
Special tools and workshop equipment required Torque wrench -V.A.G 1331 Removing – Remove trim for locking mechanism ...

Evaporator output temperature sender -G263- or evaporator temperature sensor -G308
Function: The evaporator output temperature sender -G263- or evaporator temperature sensor -G308- reads the temperature downstream from the evaporator. This value is transmitted to the air conditioning system control unit and serves as a ...

Matching wheels and tyres
General When radial or lateral runout of the wheel and tyre coincide, the imbalance of the wheel is amplified by the tyre. For technical reasons, 100% true running is not possible → Chapter. ...