Compressor, Flushing Not Required
-- Discharge refrigerant circuit.
-- Remove A/C compressor.
-- Remove oil drain plug from A/C compressor.
-- To accelerate drainage of refrigerant oil, rotate compressor, for example, by way of ribbed belt pulley/clutch plate of A/C clutch for example.
-- Pour old refrigerant oil out of A/C compressor. For information on handling refrigerant oil, refer to Volkswagen Service Net, Handbooks, Service Handbook; Protecting the environment; Emissions Protection.
-- Remove oil drain plug from original part compressor, pour out refrigerant oil and only add a quantity of fresh refrigerant oil equal to the amount poured out of the malfunctioning compressor.
If, for example, 70 cm3 of refrigerant oil has been poured out of the malfunctioning compressor and 220 cm3 out of the original part compressor (a small quantity of refrigerant oil remains in the compressor). Fill the compressor to be installed with 70 cm 3 of refrigerant oil (use can be made of oil poured out of original part compressor).
Use different refrigerant oils and quantities for the various compressors. Refer to [For engine(s) BLV, CCTA, CBFA] Specifications .
If a greater quantity of refrigerant oil (more than approximately 80 cm3 ) has been poured out of the malfunctioning compressor, the remaining refrigerant oil can also be added to the evaporator or reservoir/receiver. Refer to [For engine(s) BLV, CCTA, CBFA] Specifications .
-- Replace restrictor.
-- Assemble, evacuate and charge refrigerant circuit.