REFRIGERANT CIRCUIT, DISCHARGING WITH A/C Service Station

WARNING: This page is about a different variant/trim than selected.

Work procedure may vary depending on the type of tools selected (the tool-specific operating instructions should therefore be followed).
The refrigerant circuit is to be discharged if parts of the refrigerant circuit are to be removed, if there is any doubt about the quantity of refrigerant in the circuit or if safety precautions so require.
All of the necessary operating instructions for working with the A/C Service Station can be found in the A/C Service Station operating instructions.

Evacuate

-- Switch off the ignition.

-- Connect the A/C Service Station to the vehicle service connections according to the operating instructions (refer to WORKING WITH A/C SERVICE STATION ) and start up the service station.

NOTE:

There is a possibility of refrigerant oil being extracted from the refrigerant circuit together with the refrigerant. To ensure A/C compressor lubrication, the refrigerant oil in the circuit must be topped up with fresh oil. Refer to BEETLE/BEETLE CONVERTIBLE (5C2/5C8) or BEETLE / BEETLE CONVERTIBLE (5C2 / 5C8) [2019] .

On vehicles with an A/C compressor without an A/C clutch (with A/C Compressor Regulator Valve -N280-), the engine should run less than 10 minutes with the refrigerant circuit empty and closed (the A/C compressor also runs continuously). The engine speed must not exceed 2000 RPM.

On vehicles equipped with an A/C compressor with an A/C clutch, the engine may be started since the A/C Pressure Switch -F129- or High Pressure Sensor -G65- (checks whether refrigerant is present in the circuit) switches off the A/C clutch as soon as there is no refrigerant in the refrigerant circuit.