REFRIGERANT CIRCUIT, CHARGING WITH A/C Service Station
- The work procedure is always to be performed as described in the operating instructions for the A/C Service Station.
- Before pouring in refrigerant, correct the quantity of refrigerant oil. Refer to BEETLE/BEETLE CONVERTIBLE (5C2/5C8) or BEETLE / BEETLE CONVERTIBLE (5C2 / 5C8) [2019] .
- The entire refrigerant charge can be added to either the high or low pressure side.
Refrigerant Circuit, Charging
-- Switch off the ignition.
-- Evacuate the refrigerant circuit using the A/C Service Station. Refer to REFRIGERANT CIRCUIT, EVACUATING WITH A/C Service Station .
-- Screw out the hand wheel at quick-release coupling adapter (to close it).
-- Allow refrigerant to flow into charging hose.
-- Tighten the hand wheel on the quick-release coupling adapter without putting too much pressure on the valve and add the specified amount of refrigerant.
-- Switch off the A/C Service Station.
If A/C compressor was removed, it must be cranked by hand at ribbed belt pulley/freewheel approximately 10 rotations before bringing into operation for the first time. The electrically-driven A/C compressor is not affected by this. This prevents damage in the A/C compressor due to liquid when switching the A/C system on. If there is oil in the A/C compressor cylinder, it will be forced out.
-- Start engine with compressor switched off (version with A/C clutch).
-- Set the A/C compressor to minimum output, for example, "ECON" mode or A/C off (version with no A/C clutch with regulator valve).
-- Wait until idle speed has stabilized.
-- Switch on the A/C compressor and operate the system for at least two minutes at idle speed.
-- If necessary, check pressures in the refrigerant circuit using the A/C Service Station.
-- Turn off the engine.
-- Screw out the hand wheel on the quick-release coupling adapter.
-- Disconnect charging hose from refrigerant circuit.
-- Screw protective caps back on.