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      12-18-2012, 08:26 PM   #19
Juiced46
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Drives: 03 Turbo Cobra, 2011 335xi
Join Date: Jun 2010
Location: Wallingford CT

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Sounds possibly like the EPDW valve. Its the electronic solenoid that controls vacuum to the wastegate. Unplug it, see if the noise is still there. Its located on the passenger side of the engine. You will see some vacuum lines connected to it and one electrical connector. Unplug the electrical connector. That is not a normal wastegate sound from what I can hear. But the video isnt that great.
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