What did you guys do to stop rattling? - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

mrgoochio · 04-01-2012, 05:58 AM

As the topic says, what do you guys to do prevent rattling? I have subs in my trunk and they get pretty damn loud.

Main rattling from inside the car:
door locks that move up and down (the little nub) rattles in the locked/unlocked position (though this rattles even on bumps and rough roads without any help from my subs)
rear deck behind the seats probably flexes up from .5"-1" when my subwoofers are hitting, major rattles when bass is turned up

rattling outside most noisy to least: LICENSE PLATE (this rattles the most from outside), trunk lid spoiler, fenders/entire trunk

any ideas on reducing the flex/vibrations/rattles on the rear deck? obviously when i put my hand down on it to prevent it from rattling up (and presumably hitting the glass near the edges) the noise is drastically reduced. perhaps something to hold it in place better?

also for the outside, was thinking about putting some kind of rubber spacer to dampen the vibrations in between my license plate frame and the trunk, any ideas?

TPLSM3 · 04-01-2012, 09:04 AM

Dynamat or equivalent works great. Dynamat is so expensive, but if you look on ebay, there's alot of other similar products out there for far less. I always put dynamat on the back of the license plate and also used a rubber spacer/washer as well. Use all 4 screws for the license plate (I've seen so many people complain about license plate rattle but only use 2 mounting screws!).

mrgoochio · 04-01-2012, 04:03 PM

i didn't want to mat my entire trunk, i actually considered matting the back of my license plate frame and using rubber spacer/washers too lol. and of course i have all 4 screws in.. makes absolutely no sense to me to use only two. sounds like those people are being lazy and its just plain ugly lol

mineo77 · 04-02-2012, 11:42 AM

i put foam wedges in the trunk roof

mrgoochio · 04-02-2012, 10:29 PM

are you talking about where there is a hole into the rear deck part of the cabin with the rest of that isolation? what type/where did you get the foam wedges? did it help a lot?

sparkyblue · 07-23-2012, 03:59 AM

I'd like to bump this thread up.

Any ideas to help with the horrible back deck rattling? Not exactly sure how I'd be able to dynamat that deck area.

What i've been doing is just using a blanket or a sweatshirt, and press it up against the window & deck firmly so it keeps pressure on it. It works, but it also blocks my view in my rear view mirror. Im looking for a better solution.

I personally use 2 screws for my licence plate, on the back of where the bottom two screws would go, I stuck on a piece of felt furniture padding (what you use for furniture on hardwood floors). Works great!

04-01-2012, 05:58 AM	#1
mrgoochio 135i Coupe Owner! Drives: 2008 BMW 135i Coupe Join Date: Oct 2007 Location: Los Angeles Posts: 982 iTrader: (0)	What did you guys do to stop rattling? As the topic says, what do you guys to do prevent rattling? I have subs in my trunk and they get pretty damn loud. Main rattling from inside the car: door locks that move up and down (the little nub) rattles in the locked/unlocked position (though this rattles even on bumps and rough roads without any help from my subs) rear deck behind the seats probably flexes up from .5"-1" when my subwoofers are hitting, major rattles when bass is turned up rattling outside most noisy to least: LICENSE PLATE (this rattles the most from outside), trunk lid spoiler, fenders/entire trunk any ideas on reducing the flex/vibrations/rattles on the rear deck? obviously when i put my hand down on it to prevent it from rattling up (and presumably hitting the glass near the edges) the noise is drastically reduced. perhaps something to hold it in place better? also for the outside, was thinking about putting some kind of rubber spacer to dampen the vibrations in between my license plate frame and the trunk, any ideas? __________________ 2008 BMW 135i Coupe Jet Black Sport Pkg. P1 Lemon Boston Leather High Gloss Black Trim Comfort Access System
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04-01-2012, 04:03 PM	#3
mrgoochio 135i Coupe Owner! Drives: 2008 BMW 135i Coupe Join Date: Oct 2007 Location: Los Angeles Posts: 982 iTrader: (0)	i didn't want to mat my entire trunk, i actually considered matting the back of my license plate frame and using rubber spacer/washers too lol. and of course i have all 4 screws in.. makes absolutely no sense to me to use only two. sounds like those people are being lazy and its just plain ugly lol __________________ 2008 BMW 135i Coupe Jet Black Sport Pkg. P1 Lemon Boston Leather High Gloss Black Trim Comfort Access System

04-02-2012, 11:42 AM	#4
mineo77 Lieutenant Colonel Drives: 2010 135i,1989 PRO3,2001 530i Join Date: Aug 2009 Location: Portland,OR Posts: 1,928 iTrader: (2) Garage List 2010 135i coupe [3.78]	i put foam wedges in the trunk roof __________________ 135i coupe  6MT  TiAg  ///M sport http://www.rhominnovations.com www.musicarNW.com www.unitedBMWonline.com

04-02-2012, 10:29 PM	#5
mrgoochio 135i Coupe Owner! Drives: 2008 BMW 135i Coupe Join Date: Oct 2007 Location: Los Angeles Posts: 982 iTrader: (0)	are you talking about where there is a hole into the rear deck part of the cabin with the rest of that isolation? what type/where did you get the foam wedges? did it help a lot? __________________ 2008 BMW 135i Coupe Jet Black Sport Pkg. P1 Lemon Boston Leather High Gloss Black Trim Comfort Access System

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04-01-2012, 09:04 AM	#2
TPLSM3 Captain Drives: '08 BMW 135i Join Date: Dec 2007 Location: Orlando, FL Posts: 635 iTrader: (12)	Dynamat or equivalent works great. Dynamat is so expensive, but if you look on ebay, there's alot of other similar products out there for far less. I always put dynamat on the back of the license plate and also used a rubber spacer/washer as well. Use all 4 screws for the license plate (I've seen so many people complain about license plate rattle but only use 2 mounting screws!).

07-23-2012, 03:59 AM	#6
sparkyblue Lieutenant Drives: E82 135i Join Date: Jan 2011 Location: Fremont, California Posts: 449 iTrader: (4) Garage List 2008 BMW 135i [0.00]	I'd like to bump this thread up. Any ideas to help with the horrible back deck rattling? Not exactly sure how I'd be able to dynamat that deck area. What i've been doing is just using a blanket or a sweatshirt, and press it up against the window & deck firmly so it keeps pressure on it. It works, but it also blocks my view in my rear view mirror. Im looking for a better solution. I personally use 2 screws for my licence plate, on the back of where the bottom two screws would go, I stuck on a piece of felt furniture padding (what you use for furniture on hardwood floors). Works great!