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:

2-pack HS Optimum clear coat
Designation: 2-pack HS Optimum clear coat -LZK 769 K02 A5- Issued 10.2012 Product description 2-pack HS Optimum clear coat is a VOC compliant (VOC content < 420 g/l), high ...

Removing and installing sunlight penetration photosensor -G107-
Special tools and workshop equipment required     Removal wedge -3409- Removing   –  Unclip sunlight pen ...

Switch and sender in refrigerant circuit and related connections
  Note See vehicle-specific refrigerant circuit for switching pressures, removing and fitting switches, together with switch arrangement and versions. → Rep. gr.87     ...

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