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      12-28-2012, 02:03 PM   #3
pyo
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Drives: 2022 X3MC
Join Date: Feb 2012
Location: Fairfax, VA

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Its feedback from the electrical system. Mines does the exact same thing. I personally haven't done anything to resolve issue but a friend of mine bought something similar to this to get rid of the whine
http://www.amazon.com/gp/aw/d/B0031U..._d_detail?pd=1
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'00 328i // Sold
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'22 X3MC LCI
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