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Q: car over heats changed water pump and thermstat still overheats on 1990 BMW 325i

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
bubbles out of radiator and i see small air like bubbles
(1) Answer
Why did you change the water pump and thermostat? I'm guessing because it overheated, right. Have the cooling system check for HYDROCARBONS. Suspect you have a blown head gasket.