Metal Contamination
In the event of an A/C Compressor failure, metal will be released throughout the system resulting in contamination of the refrigerant and all system components.
Only install a designated machine for contaminated refrigerant (GE-50957 Machine R-1234yf Contaminated Refrigerant or equivalent service machine designated for contaminated refrigerant). This is critical to meet the requirements of Society of Automotive Engineers (SAE) J2851, and so the standard refrigerant service machine is not contaminated thus introducing contamination into other vehicles.
For more information on recovery and recharging when system contamination is present, as well as proper disposal, refer to Refrigerant Recovery and Recharging
New Air Conditioning sealing washers should never be exposed to any type of oil or lubricant, the rubber material may absorb the oil causing failures during installation or the life of the vehicle.
Components that are to be REPLACED due to metal contamination are as follows:
- Air conditioning compressor
- Metal lines that contain mufflers
- Thermal expansion valve (TXV)
- Receiver/Drier bottle with desiccant bag
- All rubber O-rings and seals
- Schrader valves on service ports
Components that are to be FLUSHED due to metal contamination, and are considered reusable are as follows:
- Basic metal lines that contain no mufflers
- Condenser
- Evaporator