Quote:
Originally Posted by planesman
I have coolant coming from a small hole in top of oil filter housing on my N54, 2010 535xi.
Did you ever figure out where or why yours was leaking?
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It was a bad gasket, I had the service company replace both gaskets (upper and lower) in the oil filter and the problem was resolved. Thankfully it hadn't leaked into the coolant (blue) which if it did will show up in the coolant reservoir floating on top.