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      10-07-2012, 06:43 PM   #45
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Drives: 07 328i Jet Blk/Blk/6mt
Join Date: Dec 2010
Location: Lakeland, FL

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2007 BMW 328i  [0.00]
Originally Posted by AlanAZ View Post
It would cause increased belt wear and pre-mature belt failure -- that could leave you stranded somewhere, and could, outside chance, damage the A/C compressor.

Check that the belt is running in a flat plane between all the pulleys, and the tensioner is not forward or back. Look for wear on the edge of the belt. A couple of people have reported broken mounting bolt on the tensioner, look for that. See the above thread for details and photos.
I had the same issue with a crooked tensioner and decided it was best to play it safe and change it out for all the reason quoted. It's a pretty simple job, even coming from someone with limited skills like myself. The last thing you want is that belt coming off while you are driving.
2007 -- 328I -- Jet Black -- Black Dakota Leather -- 6 Speed -- ZSP -- ZPP -- ZCW -- HiFi