Volkswagen Golf Service & Repair Manual: Connecting air conditioner service station

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / Connecting air conditioner service station

For vehicles that have connections on both low-pressure and high-pressure sides of refrigerant circuit

Connecting air conditioner service station for measuring and checking

–	Switch off ignition.

–	Connect air conditioner service station to power supply.

–	Connect quick-release coupling adapters to charging hoses for air conditioner service station (handwheels not turned inwards, i.e. hand shut-off valves not open).

–	Switch on air conditioner service station and evacuate charging hoses (necessary only if there is air in the charging hoses).

–	Switch off air conditioner service station.

–	Unscrew sealing caps from service connections (with valve).

–	Connect air conditioner service station via service connections to the vehicle refrigerant circuit using quick-release coupling adapter.

–	Turn handwheel of quick-release coupling adapter inwards only far enough to ensure that valves on service connections are open (check using a pressure gauge; do not overstress valves).

–	Perform the intended measuring and checking work.

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Checking pressures on vehicles

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