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      04-13-2015, 09:20 PM   #2
allstar335is
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Drives: 335is
Join Date: Feb 2015
Location: toronto

iTrader: (0)

iv been getting the same humming noises from my 2011 335is from the rear cabin and always happens around 2k rpm and climbing and will usually cut off at 2.5k rpm or 3k rpm depending on the gear im on. have you been able to diagnois your problem?
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