Refrigerant Oil Adding
Special Tool(s) / General Equipment
Air Conditioning Service Unit
Inspection
Compressor Type
1. NOTICE: An A/C refrigerant analyzer must be used before the recovery of any vehicle's A/C
refrigerant. Failure to do so puts the shop's bulk refrigerant at risk of contamination. If the vehicle's A/C refrigerant is contaminated, refer the customer to the service facility that carried out the last A/C service. If the customer wishes to pay the additional cost, use the A/C recovery equipment that is designated for recovering contaminated A/C refrigerant. Dispose of all contaminated A/C refrigerant as hazardous waste. For all equipment, follow the manufacturer's instructions.
NOTICE: Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D) only must be used as a refrigerant system lubricant. Addition of any oil other than Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D) to the refrigerant system will damage the A/C compressor and contaminate the refrigerant system.
NOTICE: During normal A/C operation, oil is circulated through the system with the refrigerant, and a small amount is retained in each component. If certain components of the system are removed, some of the refrigerant oil will go with the component. To maintain the original total oil charge, it is necessary to compensate for the oil lost by adding oil to the system with the new part.
NOTICE: Perform an oil balance when replacing a compressor where system flush will not be performed.
NOTE: The purpose of oil balance is to make sure the amount of oil in the system is not increased or decreased as a result of the replacement component(s).
NOTE: New compressors come fully charged with Motorcraft® PAG Refrigerant Compressor Oil (YN-12-D). The old compressor is only partially charged because some of the oil is elsewhere in the A/C system.
Verify the location of the drain plug by compressor type. Once the compressor type has been identified, proceed to appropriate compressor type below for compressor oil matching steps.
2. NOTE: Type 1: (IVDC) Internal Variable Displacement Air Conditioning (A/C) Compressor
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.