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:

Undulations
Radial depressions are slight concavities in the tyre sidewall. They run from the bead towards the shoulder of the tyre. These parts appear in the figure → Fig.. The cause is the accumulation of material ...

Locking the front passenger door and rear doors manually
Fig. 210 In the end face of the right-hand door: manual lock covered by a rubber seal Fig. 211 Manually locking the vehicle with the vehicle key First read and observe the introductory information and safety warningsThe front passenger door and the rear doors can be locked manually. This ...

Checking tyres
As tyre damage can have serious consequences, you and the driver should regularly check the tyres to identify any problems at an early stage. Damaged tyres cannot withstand driving conditions such as high speed, long distances, sporty dr ...

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