Quote:
Originally Posted by jfandl
Don't underestimate the likely leak of the Air pump o-ring. On the 4.4L engine, it's located in passenger rear of engine and tends to leak down and burn off the downpipes causing smoke, especially off the right side of the car when slowing to a stop. Replacing my o-ring solved the issue as it's a common o-ring to wear out. All 3 of my past BMW's leaked at this o-ring. It's a pretty easy job and can all be done from the top of the engine. I think it took about an hour or less.
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Thanks for the heads up. I have the 3.0L N55 tho. Do they have the same common O Ring issue?