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      02-23-2021, 02:42 PM   #8
seehund
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Drives: 2011 328i Touring (6MT)
Join Date: Dec 2020
Location: Massachusetts

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Since you only have a fault on one of the two solenoids (one for intake and one for exhaust VANOS units), you could try cleaning and swapping them to see if the fault transfers to the exhaust side. If it does, that solenoid is probably bad (maybe even the other one too; at 130k both could be needing replacement).

Apparently bad VANOS solenoids cause a whistle too: https://www.bimmerfest.com/threads/w...g-idle.825666/
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