Quote:
Originally Posted by nwsnowboarder
I think your mechanical is thinking there is an integrated oil cooler in the radiator which has failed and allowed co-mingling of the fluids, but I don't see that is the case with a 335d
There is a heat exchanger, part of the oil filter housing assy #11 42 7 788 462, but coolant doesn't flow through it.
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Actually coolant does flow through the heat exchanger. Please see these links:
http://www.realoem.com/bmw/enUS/show...diagId=11_2328
http://www.realoem.com/bmw/enUS/show...diagId=11_3466
To the OP. Do you see oil yourself or a garage is telling you there is oil in your cooling system?
The part is not that expensive to replace. Will need gaskets as well.