Quote:
Originally Posted by 4corners
A buddy of mine was here yesterday who is a mechanic. Not a BMW mechanic but a good one just the same.
He said it sounds like the slack coming out of the timing chains on start up.
Do the tensioner's rely on oil pressure at all?
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Replacing the tensioners is no fix for the clunck noise ,we saw that on here by a member ,he had the tensioners replaced and the noise was still there !
The only and single fix that I saw was replacing the "Vanos Gears" but it's $$$$.
Thread of 11 pages about the clunck noise =>
http://www.m3post.com/forums/showthread.php?t=996069
For now the only thing that helps is the brake procedure but works only for DCT.