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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > Noisy Intake
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      01-21-2019, 12:42 PM   #1
BoatmasterTrev
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Noisy Intake

Anyone else have issues with a noisy intake??? The three pieces at the bottom of the air box are all slip fit, and loosened over time with the rattle of the diesel. Took almost 2 hours to tear down to the rattle and secure (temp) with epoxy. It was a loose fit of the two pieces between the air box and the rubber fitting behind the left hand kidney grill.

Would love suggestions on aftermarket intakes or more permanent solutions. I am sure this epoxy will keep things quiet for a few months but its never going to last...
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      01-21-2019, 12:48 PM   #2
328dX
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How many miles? I haven't had any issues.

Do you mean noisy as the whole box is rattling, or a loud induction noise?


I have a stock setup, but if I were to ever switch I'd probably go with aFe #54-76307
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      01-23-2019, 05:46 PM   #3
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What noise did it make? I have a 55-65 mph thrum hat I think is the undertray covers, but I guess it could be the intake.
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      01-24-2019, 10:31 AM   #4
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I had a noticeable rattle at idle and tracked it down to the same location as you. A bead of silicon applied over the joints has remedied the issue 100%, for the last few months anyway. You may find the epoxy will take care of the rattle for a loooong time.
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      01-24-2019, 05:02 PM   #5
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Quote:
Originally Posted by BoatmasterTrev View Post
Anyone else have issues with a noisy intake??? The three pieces at the bottom of the air box are all slip fit, and loosened over time with the rattle of the diesel. Took almost 2 hours to tear down to the rattle and secure (temp) with epoxy. It was a loose fit of the two pieces between the air box and the rubber fitting behind the left hand kidney grill.

Would love suggestions on aftermarket intakes or more permanent solutions. I am sure this epoxy will keep things quiet for a few months but its never going to last...
Thanks for this, I'm having the same issue, will investigate and report back.
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