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 - evaporator housing
  Note There are different designs and makes of heater and air conditioning unit. The individual components of the various heaters and air conditioning units are similar but not identical. The combined fitting of different makes of component ...

Rodent proofing
First read and observe the introductory information and safety warnings Rodent proofing equipment is made up of special brushes and casings and impedes entry to the engine compartment by rodents when the bonnet is shut. This prevents damage caused to components by rodent bites. NOTICE If ...

Switching lights on and off
Fig. 82 Next to the steering wheel: examples of the various light switches First read and observe the introductory information and safety warnings Observe any country-specific regulations when using vehicle lighting. In vehicles with a factory-fitted towing bracket, the vehicle's re ...

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