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:

Detaching fibre optic cable from cable harness connector
Removing –  Pull fibre optic cable connector off the relevant control unit. –  Release the locking mechanism in fibre optic cable connector -1- by pressing it. –  ...

Repairing ring terminals
Special tools and workshop equipment required     VAG 1331   Note The use of penetrating fluid, contact spray or grease etc. is prohibited since the missing ad ...

Removing and installing alarm horn -H12-
Removing –  Remove plenum chamber cover → General body repairs, exterior; Rep. gr.50.     –  Remove nuts -3-. –  ...

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