why is oil mixing with coolant in coolant tank
The oil filter housing gasket usually fails around 40k-60k and oil then leaks into the coolant.
Sounds like an intake manifold gasket, head gasket, or cracked cylinder head. I'd have it diagnosed by either BMW or a service facility that specializes in imports. Don't take it to a run of the mill garage. They'll have no idea of what they're looking at!! HTH. -Jim
Thanks for accepting me. I have a problem my bmw 2006 e90 is mixing woter and oil in the woter bottle help me guyz plz
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