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Mine made a cold startup noise too, I swore it was a lifter or worse. BMW spent a week diagnosing and replacing belt tensioner and chain tensioner. Turns out, it was bubbles on the bottom of the belt that caused the noise as the belt came around and struck the tensioner. Search other threads for possible solutions. Good luck
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2013 X5 3.5i M Sport
2004 M3 cabriolet SMG
Last edited by Tomaz; 05-16-2007 at 11:21 PM.
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