very faint rattle from bottom middle(ish) of car?

Vancity128guy · 06-20-2019, 12:14 PM

Hi all,

I just purchased a pre owned 2014 M235i with 51K KMs on it. Car is amazing and I love it, but I have noticed when driving between walls in alleys or in a garage, I can hear a faint rattle when i lightly touch the throttle (1000-2000RPM). It almost sounds like something is lose underneath, it sounds like its coming from the center exhaust area but I am not sure.

It isn't apparent at idle really, only under light throttle. It isn't super loud but enough to bother me. I can't really hear it unless the windows are rolled down and i am between two walls.

Any idea what it could be?

Climate Changer · 06-20-2019, 01:39 PM

It sounds like your exhaust might be the issue. You might need a Fixing Bowl. This part is next to your exhaust flap valve.

https://parts.bmwnorthwest.com/p/BMW...307620323.html

Or you can do the exhaust flap mod which in my case eliminated the rattle.

Search on here for exhaust rattle and you will find plenty of pics and info.

bmays909 · 06-20-2019, 03:11 PM

Not exactly sure, sorry I needed to reply to one post before I can post a new thread. Goodluck! Did you purchase the BMW maintenance program by chance?

06-20-2019, 12:14 PM	#1
Vancity128guy New Member 4 Rep 23 Posts Drives: 2011 128i Join Date: May 2017 Location: Vancouver iTrader: (0)	very faint rattle from bottom middle(ish) of car? Hi all, I just purchased a pre owned 2014 M235i with 51K KMs on it. Car is amazing and I love it, but I have noticed when driving between walls in alleys or in a garage, I can hear a faint rattle when i lightly touch the throttle (1000-2000RPM). It almost sounds like something is lose underneath, it sounds like its coming from the center exhaust area but I am not sure. It isn't apparent at idle really, only under light throttle. It isn't super loud but enough to bother me. I can't really hear it unless the windows are rolled down and i am between two walls. Any idea what it could be?
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06-20-2019, 01:39 PM	#2
Climate Changer Second Lieutenant 109 Rep 278 Posts Drives: 2018 230i xdrive convertible Join Date: Oct 2018 Location: New York iTrader: (0) Garage List 2018 230i xdrive co ... [0.00] 2019 x3 [0.00]	It sounds like your exhaust might be the issue. You might need a Fixing Bowl. This part is next to your exhaust flap valve. https://parts.bmwnorthwest.com/p/BMW...307620323.html Or you can do the exhaust flap mod which in my case eliminated the rattle. Search on here for exhaust rattle and you will find plenty of pics and info.
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06-20-2019, 03:11 PM	#3
bmays909 New Member 1 Rep 18 Posts Drives: 2016 BMW M235i Join Date: Jun 2019 Location: California, USA iTrader: (0)	Not exactly sure, sorry I needed to reply to one post before I can post a new thread. Goodluck! Did you purchase the BMW maintenance program by chance?
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