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      04-27-2016, 07:57 PM   #36
Chief Orman
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Drives: 335D 2010
Join Date: Jun 2013
Location: East Bay, Nor Cal

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Quote:
Originally Posted by montr
Classic harmonic balancer pulley failure. Mine failed at 67 K miles. When you replace the pulley, it is a good idea to replace the two belts at the same time.

It is not something that you did or the tune. The OEM pulley is of poor quality.
me too at almost exactly the same mileage
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