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:

Variable luggage compartment floor
Fig. 103 In the luggage compartment: lifting the variable luggage compartment floor Fig. 104 In the luggage compartment: variable luggage compartment floor folded up First read and observe the introductory information and safety warnings The variable luggage compartment floor is height-a ...

Adjusting wiper arm
Special tools and workshop equipment required Torque wrench -V.A.G 1331- – Remove wiper arm → Chapter. – Switch ...

Working on refrigerant circuit
Repairs requiring the opening of the refrigerant circuit must only be carried out by specially trained personnel. Notes on repairs to vehicles with air conditioning and on handling refrigerant can be found in ELSA under → Air c ...