VW Golf manuals

Volkswagen Golf Service & Repair Manual: Connecting air conditioner service station for measuring and checking

Depending on the type of equipment chosen, there may be variations in the required procedure; therefore always follow the user's manual for the equipment being used.
  Note
Always follow the procedure described in the user's manual for your air conditioner service station -VAS 6007A- (or later model).
The charging hoses must only be connected according to the following work procedure to prevent air or moisture from entering the refrigerant circuit:
–  Switch off ignition.
–  Connect air conditioner service station to power supply.
–  Unscrew sealing caps from service station connections or from connections with valve (see vehicle-specific refrigerant circuit).
→ Rep. gr.87
–  Evacuate charging hose.
  Note
Connect the charging hose to the service connections of the refrigerant circuit using quick-release couplings.
  Caution
Do not open the valves in the low- or high-pressure sides when the engine is running. Otherwise, if the air conditioning is switched on, the air conditioner compressor or the air conditioner service station may be destroyed by a “short circuit” between the high- and low-pressure sides of the refrigerant circuit.
–  Turn hand wheel into quick-release coupling adapter until the valve in the service connection is definitely open (observe pressure gauge; do not over-tighten valve).
–  Start the engine and perform the planned tests and measurements.
–  Compare determined values with specifications → Chapter.
–  Before disconnecting the quick-release coupling, close it by turning out the handwheel.
   
Important notes for working with the air conditioner service station
To operate the air conditioner service station -VAS 6007A-, the following must be observed (also applies to other and latest available air conditioner service station ...

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