Q: blue smoke from exhaust lots of.miss fire as well on 1998 BMW 540i

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soon as u start up clouds of smoke
(3) Answers
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Sounds like valve seals. Engine oil in the top of the head will drain down the valve stem through a worn valve seal when the engine is off. Once you start the engine the oil in the combustion chamber will burn casuing smoke. This is not a cheap repair but you might try an oil conditioner product.
this may be a oil superater under the intakemanifold also oil tube be sure and check it too.i have a 540i thats what it was.the miss is oil fauling your plugs.dirtcar in
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