Quote:
Originally Posted by monkey_wrench
May not hurt to get a new tensioner bolt while you're at it. Mine broke, and the tensioner came out off alignment.
Bought new Tensioner assy. and deflection pulley, few hundred from BMW.
Easy (30 minute) DIY
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I actually got my tensioner and bolt from autohausaz for about $75. Turned out the tensioner was okay and it was actually my oil filter that was making the sound.