VW Golf manuals

Volkswagen Golf Service & Repair Manual: 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 closes again when the pressure has dropped (approx. 30 bar).
Not all the refrigerant is lost from the system.
Depending on the version, a transparent plastic disc may be fitted, which breaks when the valve opens.
 

High-pressure safety valve

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 genui ...

Design of refrigerant circuit
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Other materials:

Removing and installing ambient temperature sensor -G17
  Note The ambient temperature sensor -G17- is used for determining the outside temperature and as a switch-on condition of the auxiliary and supplementary heater via CAN bus. –  Removing and installing ambient temper ...

Removing and installing humidity sender for air conditioning system -G260-
The humidity sender for air conditioning system -G260- and the light/rain sensor -G397- form one component and are installed depending on vehicle equipment. –  Removal and installation procedure is described in → E ...

Run-flat tyres, retrofitting/requirements when using run-flat tyres
  Caution Retrofitting run-flat tyres to vehicles may only be undertaken if the tyres are fitted as standard or they are available as an option. These tyres may only be used ...

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