Quote:
Originally Posted by crystalworks
Yessir. Did the same on my 530xi wagon. Weren't nearly as dirty as yours though when I did mine @ 192k miles. I know this applies to all N52s and would assume all N54s.
Looks like extended service intervals at some point in the life of that engine.
While we're talking about N52/54 common issues. Check your front 4 head bolts for the heads snapping. 3 are under the valve cover and can't be seen but 1 is external just behind the OFHG. Mine snapped (assume the 3 internal ones are too) causing oil leakage down the front and side of the engine. If you know the N52/54s propensities to eat the belt through the crank seal... you don't want that belt getting oil soaked.
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Thanks for the note! Thankfully even after all this time I have no oil leaked. I’ll definitely take another look at this though. The only leak I had was the oil filter housing and I changed that gasket a few years back.