VW Polo manuals

Volkswagen Polo Service & Repair Manual: Connecting Service Station

  Turn off the ignition.
–  Connect the A/C service station to the power supply.
–  Connect quick-release coupling adapter to charging hoses of service station (handwheels not screwed in/hand shut-off valve not open).
–  Switch on service station and evacuate charging hoses (only necessary if there is air in charging hoses).
–  Switch off A/C service station.
–  Remove caps from service connections (with valve).
–  Connect the A/C service station to the refrigerant circuit using service connections with quick-release coupling adapters.
–  Screw in handwheel of quick-release coupling adapters only until valves are definitely open at refrigerant circuit connection (observe pressure gauge, do not strain valves).
–  Perform planned tests and measurements.
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Pressures, Checking
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Other materials:

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  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. Refer to → Rep. Gr.87.     ...

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  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...

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