I have a BMW 325i How do I find the cause of oil in the antifreeze?

Asked by Apr 13, 2017 at 06:18 PM about the 2003 BMW 3 Series 325i Sedan RWD

Question type: Maintenance & Repair

1 Answer

91,905

Only two possible causes - a leaking head gasket or a leak from the radiator transmission cooler into the engine coolant. Not sure if your car has an integrated transmission cooler in the radiator.

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