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# 6 is your adjuster unit for your Intake Manifold System. Does the "noise" sound like an air leak?

If it is, it might be as simple as a worn O-ring (18), rubber mount (8), or the rubber grommet for your idle valve (10).
 

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where in gods name did you find that diagram i tried everything haha. guess its good to have thousands of dif memebers all lookin at once!
 

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For complete diagrams...

www.realoem.com

Not sure, there alot of loose parts that may be causing the noise. Without hearing or seeing it, it's hard to tell.
 

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Sorry here's the RIGHT diagram for your car. I have the 328i bookmarked.




less moving parts...
 

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Do a search for "DISA", you should find several references to that part.
 

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it may be this part below that intake manifold. I just replaced that piece in my 2000 328i because it was whistling from a tear in the rubber.. hard to get to but only a $16.00 piece. plus you can clean your idle control valve while you've got all that stuff apart.
 

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