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      07-28-2019, 11:21 PM   #2
GotBoost007
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Drives: 2008 335i
Join Date: Mar 2017
Location: Charlotte NC

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Based on the area your showing in the video it may just be a boost solenoid going out. Mine made a high pitch buzzing noise for awhile then started throwing overboost codes and I've read other posts talking about a buzzing noise coming from the solenoids. It's a $70 part from FCP Euro. Hope this helps you nail it down.
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