Quote:
Originally Posted by mrad01
BMW replaced the crank and bearings in my 07 e90 M3, and the knocking noise remained. In the end, Germany sent down a brand new 2011 engine which I'm just about finished running in. The noise is gone now.
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That is some damn good service. To have an engine running to spec, except for a noise, and have them replace it? Yes, that is the right thing to do so as to avoid a possible catastrophic failure, but many manufacturers would not have done that.
Cheers,
e46e92