E92 vibrations with exhaust

RRGOO7 · 01-22-2008, 08:05 PM

My E92 has a vibration that occurs in the rear of the car that is coming from the console area in the rear. I removed the sliding cubby thing completely and that took away ALOT of the vibrations but there still is some. Its not my exhaust pipes rattling just other pieces in the car vibrating from the drone. Any do anything to help this?

rideelement247 · 01-22-2008, 08:33 PM

I would say the sliding cubby lid would be the culprit. But you removed that. Other than that I would check the underside of the car for the brackets that are supposed to hold your exhaust in place. Turn the car on and let it idle while you look for where it could be vibrating against. Or better yet let your budy rev the car and then let off and watch the backpressure travel down the exhaust through vibrations and see if you can catch where it is rattling. If it isn't the exhaust it could also be the rear ashtray lid for the rear passengers. Best to sit in the back and let a friend drive and see if you can hear where the vibrations are coming from and try and isolate where the noise is coming from.

mrad01 · 01-23-2008, 12:33 AM

A couple of things I did in my car - and it is very quiet now!

- Put felt tape behind the license plate. Reducing vibration here is critical.
- Tighten the shiny metal exhaust heat shields under the rear of the car. They are not exactly tight from the factory
- Layering tape on the underside of the various slidings lids in the interior

Should do the trick (esp the license plate)

RRGOO7 · 01-23-2008, 05:16 AM

thanks alot guys I'm going to try all this and report back

Sam12345 · 06-09-2008, 03:30 AM

DUDE WTF IM HAVING THIS PROBLEM AND I DUNO WTF to do!!!
The suggestions you listed will be attempted tommorow. Is their anyway to take out the rear center slider door thing?

e92phreak · 06-09-2008, 03:34 AM

Quote:

Originally Posted by Sam12345

DUDE WTF IM HAVING THIS PROBLEM AND I DUNO WTF to do!!!
The suggestions you listed will be attempted tommorow. Is their anyway to take out the rear center slider door thing?

Yeah, you can take it out. In fact, it's pretty easy. All you got to do is yank out the front... be careful of the rear part as it is attached in the back.

Put some gel-like or soft foam material underneath and it should help dampen the vibration.

Right now, I have a tennis ball and a brand new Nike sock in the compartment to dampen it.

01-22-2008, 08:05 PM	#1
RRGOO7 Colonel 360 Rep 2,451 Posts Drives: GTR Join Date: Dec 2006 Location: Miami FL iTrader: (13)	E92 vibrations with exhaust My E92 has a vibration that occurs in the rear of the car that is coming from the console area in the rear. I removed the sliding cubby thing completely and that took away ALOT of the vibrations but there still is some. Its not my exhaust pipes rattling just other pieces in the car vibrating from the drone. Any do anything to help this?
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01-22-2008, 08:33 PM	#2
rideelement247 Lieutenant Colonel 54 Rep 1,677 Posts Drives: 08 335i, 67 Camaro SS Join Date: May 2007 Location: South Florida iTrader: (2)	I would say the sliding cubby lid would be the culprit. But you removed that. Other than that I would check the underside of the car for the brackets that are supposed to hold your exhaust in place. Turn the car on and let it idle while you look for where it could be vibrating against. Or better yet let your budy rev the car and then let off and watch the backpressure travel down the exhaust through vibrations and see if you can catch where it is rattling. If it isn't the exhaust it could also be the rear ashtray lid for the rear passengers. Best to sit in the back and let a friend drive and see if you can hear where the vibrations are coming from and try and isolate where the noise is coming from. __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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01-23-2008, 12:33 AM	#3
mrad01 First Lieutenant 16 Rep 327 Posts Drives: 2008 BMW E90 M3 Join Date: Sep 2007 Location: New Zealand iTrader: (0)	A couple of things I did in my car - and it is very quiet now! - Put felt tape behind the license plate. Reducing vibration here is critical. - Tighten the shiny metal exhaust heat shields under the rear of the car. They are not exactly tight from the factory - Layering tape on the underside of the various slidings lids in the interior Should do the trick (esp the license plate) __________________ 2008 BMW e90 M3 6MT 1990 BMW e30 325i 5MT
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01-23-2008, 05:16 AM	#4
RRGOO7 Colonel 360 Rep 2,451 Posts Drives: GTR Join Date: Dec 2006 Location: Miami FL iTrader: (13)	thanks alot guys I'm going to try all this and report back
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06-09-2008, 03:30 AM	#5
Sam12345 Lieutenant Colonel 106 Rep 1,534 Posts Drives: jet black 335i coupe Join Date: Feb 2008 Location: So Cal iTrader: (3) Garage List 2008 335i Coupe [0.00]	DUDE WTF IM HAVING THIS PROBLEM AND I DUNO WTF to do!!! The suggestions you listed will be attempted tommorow. Is their anyway to take out the rear center slider door thing? __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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