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BMW X3 Service & Repair Manual > HVAC: Air conditioner refrigerant
1.0 AIR CONDITIONER REFRIGERANT
FREONÂ
The refrigerant Freon R12 is used in most BMW automobiles with an air conditioner up through the 1992
model year. It has a boiling point of -29.8ºC (sea level), at which the refrigerant is transformed from a liquid
into a gaseous state.
This boilin ...