M3 CS Exhaust Vibrating

Hymiet · 04-30-2019, 04:18 PM

Anyone had an issue with a vibrating or lose exhaust on their M3CS? My CS is pretty new, 1500 miles and I can feel the vibration, especially when Accelerate hard. It's not a terrible vibration, but it's noticeable.

When I turn the car on I can hear it rattle and then it goes away. My previous 2015 M3 was extremely smooth.

Any input or suggestions would be greatly appreciated!! Thx!!

Reddevils7 · 05-02-2019, 11:49 AM

do you have the mpe?

Hymiet · 05-02-2019, 11:54 AM

Quote:

Originally Posted by Reddevils7

do you have the mpe?

Quote:

Originally Posted by Reddevils7

do you have the mpe?

No... just the standard CS exhaust.

Reddevils7 · 05-02-2019, 11:56 AM

Quote:

Originally Posted by Hymiet

Quote:

Originally Posted by Reddevils7

do you have the mpe?

Quote:

Originally Posted by Reddevils7

do you have the mpe?

No... just the standard CS exhaust.

okay because I have the mpe and had a problem similar to yours. very loud rattle on cold start and occasional rattle on upshifts. it ended up being a crack in the muffler which was replaced under warranty. I know the mpe is prone to this problem but not sure about the stock exhaust.

jmg · 05-02-2019, 11:53 PM

No rattles here. I wonder if one of your hangers is damaged or missing. Just take it to the dealer.

Hymiet · 05-04-2019, 11:23 AM

Thanks all! I really appreciate the feedback.

NYG · 05-04-2019, 11:58 AM

This is relatively too common with F30/32 F80/F82 exhausts. Took me 4 visits to the dealership to correct it to the point where it still happens but rarely.

Happened to me on the MPE and a few of my friends. It's always in the passenger side too.

ONE1 · 05-05-2019, 03:57 PM

My exhaust (MPE) developed a loud rattle recently that was especially noticeable upon startup. I immediately assumed there was a crack, but none were found. Took the car into the dealership last week and the exhaust tips were found to be the culprit. All four tips were replaced and the problem seems to be gone now.

04-30-2019, 04:18 PM	#1
Hymiet Private First Class 75 Rep 179 Posts Drives: 2015 BMW M3 Join Date: Jul 2014 Location: Delray Beach, FL iTrader: (0)	M3 CS Exhaust Vibrating Anyone had an issue with a vibrating or lose exhaust on their M3CS? My CS is pretty new, 1500 miles and I can feel the vibration, especially when Accelerate hard. It's not a terrible vibration, but it's noticeable. When I turn the car on I can hear it rattle and then it goes away. My previous 2015 M3 was extremely smooth. Any input or suggestions would be greatly appreciated!! Thx!!
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05-02-2019, 11:49 AM	#2
Reddevils7 Captain 980 Rep 858 Posts Drives: F87 M2CS Join Date: May 2018 Location: USA iTrader: (0) Garage List 2010 E92 M3 [7.83] 2020 F87 M2CS [7.13]	do you have the mpe? __________________ MY18 F82 M4 Austin Yellow / Black / DCT / MPE
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05-02-2019, 11:53 PM	#5
jmg Lieutenant General 18705 Rep 14,115 Posts Drives: G82 M4C X-Drive Join Date: Mar 2013 Location: Orange County, CA iTrader: (1) Garage List 2022 G82 M4C X-Drive [9.85] 2018 F80 M3 CS [9.87] 2019 i3 BEV [0.00]	No rattles here. I wonder if one of your hangers is damaged or missing. Just take it to the dealer. __________________ 2022 G82///M4 Competition X-Drive - KW-HAS, EBC Bluestuff, Millway Race Camber Plates, Cup2 Connect, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing Previous • 2018 F80 ///M3 CS • 2016 F80 ///*M3 IG: Raging_G82
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05-04-2019, 11:23 AM	#6
Hymiet Private First Class 75 Rep 179 Posts Drives: 2015 BMW M3 Join Date: Jul 2014 Location: Delray Beach, FL iTrader: (0)	Thanks all! I really appreciate the feedback.
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05-04-2019, 11:58 AM	#7
NYG Brigadier General 10740 Rep 3,690 Posts Drives: Audi R8 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	This is relatively too common with F30/32 F80/F82 exhausts. Took me 4 visits to the dealership to correct it to the point where it still happens but rarely. Happened to me on the MPE and a few of my friends. It's always in the passenger side too.
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05-05-2019, 03:57 PM	#8
ONE1 Second Lieutenant 125 Rep 244 Posts Drives: 2021 M3 Join Date: Apr 2012 Location: Bay Area iTrader: (0)	My exhaust (MPE) developed a loud rattle recently that was especially noticeable upon startup. I immediately assumed there was a crack, but none were found. Took the car into the dealership last week and the exhaust tips were found to be the culprit. All four tips were replaced and the problem seems to be gone now.
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