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:

Assembly overview - fuel delivery unit/fuel gauge sender, vehicles with four-wheel drive
1 -  Fuel pump control unit -J538- Check with → Vehicle diagnostic tester Removing and installing → Chapter 2 -  Electrical connector For fuel pump control unit -J538- ...

Charging devices that do not require a permit
Charging devices that do not require a permit are mobile charging devices into which pressurised gases are charged into compressed gas containers for exclusive use of one company. Note: Some air conditioner service devic ...

Checking colour indicator, “2-colour”
  WARNING Danger of injury! Observe warning notices and safety regulations → Chapter! General information about colour indicator: The genera ...

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