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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Rattling sound at idle



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      10-16-2012, 04:07 PM   #23
Duke
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Same here except since Im out of warrantly Im leaving my mods on (except for the cobb of course) and see if the dealership will do something with the latest TSB on the wastegates/turbo extended warranty. without the cobb installed & even before I had cobb and I was running stock tune I had pretty bad WG Rattle upon deceleration.

Oh yeah the rattle will stay VERY loud for a good minute or so then slowly wither away until its almost completely gone... or at least unnoticeable inside w/windows up, but once i drop the windows or open my door you can still hear the loose change in a tin can

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      01-29-2013, 11:53 PM   #24
stashtrey
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I have noticed a rattle similar to this and have narrowed it down to being in M2 or when slowing to a stop just before it downshifts itself into 1st.

Sitting at a stop no noise. Put it in 2M and it rattles....bump it to 1M and it goes away.

Sounds like something vibrating against something just in front of the center dash under the hood. Can only what it del. Inside the car. Seems to go away after the car fully heats up.
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