Thread: 2011 535i Buzzing Sound *Video*
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      11-05-2015, 01:36 AM   #5
f10inSD
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Drives: 2013 535i M-Sport Space Grey
Join Date: Sep 2012
Location: San Diego, CA

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I have the same sound going on. From what I gather on the forums its what MSD1 said.. Turbo Pressure Converter.

I will confirm with you after I take my car to the dealer next week.
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