M340i Interior Rattle w/ Hard Acceleration?!

AV9 · 01-03-2020, 01:50 PM

Hi Folks,

I purchased my M340i back in June of 2019 and my initial impressions are mostly positive. I'm happy with the drive, feel, and overall construct of the car, but I do have a major concern.

About 1 month ago, I began to notice a rattle/vibration sound, (predominantly when I'm in Sport) when I accelerate between 2nd-3rd gear, sometimes 3rd-4th gear, and rarely between 4th and 5th. It sounds like it is either coming from the iDrive screen or the mesh trim that's on the center of the dash.

Frankly, it's very annoying, as I'm sure you can imagine and I almost always drive the car in Sport.

I've removed all items from by cup holder, center console - everything cleared, and I still get this incessant rattle/vibration.

Has anyone else experienced this, if so, what's the remedy here?

themur · 01-03-2020, 02:53 PM

Check out gnr4all write up on CyclingBroStyle fix in the DIY section or here:

https://g20.bimmerpost.com/forums/sh....php?t=1652142

AV9 · 01-03-2020, 04:38 PM

Quote:

Originally Posted by themur

Check out gnr4all write up on CyclingBroStyle fix in the DIY section or here:

https://g20.bimmerpost.com/forums/sh....php?t=1652142

Thank you

mholder · 01-12-2020, 12:47 AM

I recently had a brand new 2020 M340i as a loaner for 10 days while my dealership was retrofitting my 2017 340i Msport with the m performance suspension. I was very impressed with the out-of-the-box acceleration and handling that comes with the 382hp, 30% stiffer body rigidity and the stock LSD. I however was not very happy about extraneous rattles seemingly coming from various body panels around the doors and the dash area, My 340i seems to have a better interior fit and finish. BTW in case anyone is listening my 340i has: mppsk, m performance brakes, m performance suspension, Dinan cold air intake, rear diffuser, m performance carbon fiber rear deck spoiler and carbon fiber mirror caps. If I had known the M340 xdrive was coming I would have suffered with my ailing 2007 335i and waited for it lol! In all seriousness my 340i with all of the goodies is just as fast as the M340i but cannot touch it in regard to handling and balance. The 30% stiffer body rigidity and the LSD make all of the difference on the M340i when it comes to driving on the wire, which I do every day of the week lol!

01-03-2020, 01:50 PM	#1
AV9 Brigadier General 141 Rep 4,310 Posts Drives: 2009 e92 m3 Join Date: Jun 2008 Location: OC/SD iTrader: (7)	M340i Interior Rattle w/ Hard Acceleration?! Hi Folks, I purchased my M340i back in June of 2019 and my initial impressions are mostly positive. I'm happy with the drive, feel, and overall construct of the car, but I do have a major concern. About 1 month ago, I began to notice a rattle/vibration sound, (predominantly when I'm in Sport) when I accelerate between 2nd-3rd gear, sometimes 3rd-4th gear, and rarely between 4th and 5th. It sounds like it is either coming from the iDrive screen or the mesh trim that's on the center of the dash. Frankly, it's very annoying, as I'm sure you can imagine and I almost always drive the car in Sport. I've removed all items from by cup holder, center console - everything cleared, and I still get this incessant rattle/vibration. Has anyone else experienced this, if so, what's the remedy here? __________________ E92 M3: \| MRF Velaforza Exhaust \| BBS RIA (Custom Gold) \| AP Racing BBK \| AST Remote Reservoir Coilovers \| Revinora CRT \| 2020 M340i: \| sold \| 2025 X6M Competition: \| stock \|
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01-03-2020, 02:53 PM	#2
themur Private First Class 67 Rep 117 Posts Drives: BMW M340i Join Date: Sep 2019 Location: SoCal iTrader: (0) Garage List 2020 BMW M340i [0.00]	Check out gnr4all write up on CyclingBroStyle fix in the DIY section or here: https://g20.bimmerpost.com/forums/sh....php?t=1652142
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01-12-2020, 12:47 AM	#4
mholder Private 24 Rep 68 Posts Drives: 2017 F30 340i Black, mppsk Join Date: Oct 2018 Location: USA iTrader: (0)	I recently had a brand new 2020 M340i as a loaner for 10 days while my dealership was retrofitting my 2017 340i Msport with the m performance suspension. I was very impressed with the out-of-the-box acceleration and handling that comes with the 382hp, 30% stiffer body rigidity and the stock LSD. I however was not very happy about extraneous rattles seemingly coming from various body panels around the doors and the dash area, My 340i seems to have a better interior fit and finish. BTW in case anyone is listening my 340i has: mppsk, m performance brakes, m performance suspension, Dinan cold air intake, rear diffuser, m performance carbon fiber rear deck spoiler and carbon fiber mirror caps. If I had known the M340 xdrive was coming I would have suffered with my ailing 2007 335i and waited for it lol! In all seriousness my 340i with all of the goodies is just as fast as the M340i but cannot touch it in regard to handling and balance. The 30% stiffer body rigidity and the LSD make all of the difference on the M340i when it comes to driving on the wire, which I do every day of the week lol!
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