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      02-10-2013, 01:50 PM   #4
Juiced46
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Drives: 03 Turbo Cobra, 2011 335xi
Join Date: Jun 2010
Location: Wallingford CT

iTrader: (3)

Its the fuel tank vent valve. The valve is located by the air box. Completely normal to hear it then it goes away. Different conditions cause it to actuate faster/slower or not at all.
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