During Component Replacement

DURING COMPONENT REPLACEMENT
When it is necessary to replace a refrigerant system component, the procedures must be followed to ensure that the total oil charge in the system is correct after the new component is installed. As the A/C compressor operates, refrigerant oil gradually leaves the A/C compressor and circulates through the A/C system with the refrigerant. Eventually, an oil equilibrium is reached, with some of the oil residing in each A/C component and some of the oil continuously circulating. If an A/C system component is replaced, some of the refrigerant oil will remain in it. To maintain the original refrigerant oil charge in the A/C system, it is necessary to compensate for this oil loss by adding new refrigerant oil to any new components when they are installed.

Follow the correct procedure for each component replaced:
^ A/C condenser core - If the A/C condenser core is being replaced, add 30-50 ml (1.0-1.7 fl. oz.) of new refrigerant oil to the new A/C condenser core. Add the oil to the low-pressure (A/C condenser core outlet) fitting.
^ Front/rear A/C evaporator core - If the A/C evaporator core is being replaced, add 45-75 ml (1.5-2.5 fl. oz.) of new refrigerant oil to the new A/C evaporator core. Add the oil to the low-pressure (A/C evaporator core outlet) fitting.
^ Suction accumulator/drier - If the suction accumulator/drier is being replaced, add 60 ml (2 fl. oz.) of new refrigerant oil to the new suction accumulator/drier.