VW Golf manuals

Volkswagen Golf Service & Repair Manual: 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:

Additional information
Technical Service Handbook with measures for rectifying latest malfunctions. Workshop manual for service work specific to model → Heating, air conditioning; Rep. gr.87. → Current ...

Charging refrigerant circuit using air conditioner service station
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Removing and installing alternator, vehicles with TDI engine
Special tools and workshop equipment required     Torque wrench -V.A.G 1331-   Torque wrench -V.A.G 1783- Remov ...

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