Question about 2000 BMW 5 Series
A lot blue smog coming out from the exhust
Blue indicates a lot of engine oil is being burned, black would mean too much fuel, and white would mean excess water/coolant. Being as it's blue, it could be any one of a number of things, all internal in the engine. Could be bad oil rings, valve guides, stem seals, etc. I suggest an engine shop to properly determine the cause. Might just be a plugged pcv system that just needs cleaning, you never can tell from the outside. Is there a lot of oil in the air cleaner assembly? If with the engine running, you carefully remove the oil fill cap, is there a lot of pressure/gasses escaping? There shouldn't be.
Posted on Dec 12, 2014
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Posted on Jan 02, 2017
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