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      04-13-2015, 11:53 PM   #16
knokout5
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Drives: BMW 328i LCI
Join Date: Apr 2015
Location: United States

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Quote:
Originally Posted by chaudhrysn View Post
I have a rattling sound around 2.5K rpm and That tends to go away above 3K

Is yours similar as well?
My "rattle" occurs in the low rpm range whether I'm in 1st, 2nd, or 3rd gear usually. It kind of sounds like I'm rapidly hitting a key on the keyboard. The more I press the gas, the heavier the sound gets. I haven't quite done much digging into my engine to locate the noise, but right now my hunch is the DISA flap in the intake manifold. I will update y'all once I do a bit more investigating. by the way, i have a n52 e90.
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