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Looks like my 1 month old coupe has developed that infernal rattle coupe owners complain about. It sounds like it's coming from there area where the HK subwoofer is and it rattles even when the damn stereo's off!!!

The rest of the car is solid as hell. Feels like it could take a missile hit and keep going strong. Is this the same rattle you all have been experiencing??

Any help is appreciated.

TIA

Christian
 

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Yup, this is a know problem. Bring it back to your dealer and let them look at it.
 

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Well, over the last two years I have had two dealers takes several shots at fixing the HK rattle and none of the crap they stuffed in there did it. Sometimes it remedied the rattle/vibration noise mostly for a while, but it invariably came back. Not only that, all the insulation they stuck in there made the music sound muffled, yuck.

So finally, sick of the lame dealer kluges with cheepo carpet insulation, I fianally have a real fix. The new subs helped a lot but not completely. Loki also had a lot of rattles so we decided to try and Dynamat it - he actaully found a less expensive material called RAMMAT. Thanks to Lokis hard work both of our cars rear speakers, subs are rattle free now and sound tight - totally crisp and clean.

I cannot make the rear rattle anymore when I try, even when the whole car is vibrating with the bass- now what happens is that the doors sound like hell when I do that. So now onto RAMMATing the doors - and who knows, maybe getting rid of those thin looking HK speakers while I'm at it.
 

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St. Louis BMW Fanatic
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Get some acoustic dampening material...

check out this vendor: http://www.mcmaster.com/

and order a sheet of High Temp Mastic...it's the same stuff Dynamat is made off but at a fraction of the cost. I lined my entire trunk and rear deck lid and nothing rattles anymore.

You dealer is probably going to try some pretty lame fixes...just do it right yourself the first time.
 

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All you do is unscrew the sub from the trunk. Then you will see two holes that go into the rear deck. Just roll up a shirt and stuff it around the holes. Takes about 5 mins.
 

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flimson said:
I have the same problem with my HK system. I have an appt with the dealer on Wed. to fix the problem.
Personally I wouldn't bother with the dealer... it's a waste of time and effort for subpar results that don't last. The problem with the buzz/rattle is mainly due to where the deck fits into the rear vent. Some people have gotten away with just stuffing something small between the two to fix the problem without the trouble of removing the rear deck but RAAMmatting both enchanced the bass well as solving the rattle so the extra effort to remove it was worth it IMHO.

I also wouldn't stuff the HK sub enclosure with socks or such as that's not really the problem and can possible produce sound distortion.

RAAMmat can be purchased through Rick at: http://www.raamaudio.com

Here's a pic of Lokis car before and after:

<img src=http://www.marcchu.com/scar/raammat.jpg>
 

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also note

that when RAAMmatting the rear deck, Loki put two layers at the edge of the rear deck where it fits into the rear vent to prevent the rattle. This isn't shown in that pic (did that afterward).
 

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I have had a rattle for awhile now. I thought it was the harmon kardon rattle but it also rattled while the stereo was off, mainly going over uneven pavement or bumps. I finally isolated the problem with the dealers help. My rattle problem is due to the 3rd rear brake light housing. The dealer tried to insulate it and it worked for a few days. Now the rattle is back. I have an appointment in a week or so and told them to order a new brake light housing as I dont want to keep going back. I hope they do that for me.
 

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valerie said:


Personally I wouldn't bother with the dealer... it's a waste of time and effort for subpar results that don't last. The problem with the buzz/rattle is mainly due to where the deck fits into the rear vent. Some people have gotten away with just stuffing something small between the two to fix the problem without the trouble of removing the rear deck but RAAMmatting both enchanced the bass well as solving the rattle so the extra effort to remove it was worth it IMHO.

I also wouldn't stuff the HK sub enclosure with socks or such as that's not really the problem and can possible produce sound distortion.

RAAMmat can be purchased through Rick at: http://www.raamaudio.com

Here's a pic of Lokis car before and after:



Hi Valerie,

Would you hav a DIY to remove the rear deck?

TIA!

<img src=http://www.marcchu.com/scar/raammat.jpg>
 

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Manwhore
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This rattle that you kids speak of is like metal on metal sounding.. right? When i go over bumps it sounds like the rear deck is lifting up and then slamming down.


So im gonna try RAAMmat, but do you really need to do the WHOLE deck lip like that? Couldnt you just get away with doing the edges?

Also i dont even have my HK subs on anymore, they disconnected them when i added my aftermarket sub. And the rear deck only rattles bad when i have the rear seats down... :banghead: :banghead:
 

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CrazyBimmer said:
This rattle that you kids speak of is like metal on metal sounding.. right? When i go over bumps it sounds like the rear deck is lifting up and then slamming down.


So im gonna try RAAMmat, but do you really need to do the WHOLE deck lip like that? Couldnt you just get away with doing the edges?

Also i dont even have my HK subs on anymore, they disconnected them when i added my aftermarket sub. And the rear deck only rattles bad when i have the rear seats down... :banghead: :banghead:
Hey CrazyBimmer, what exactly is RAAMmat? Is it liquid or solid or how do you use it? The dealership won't fix my rattles and I have to do it solo.
 

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Manwhore
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chrisflipmd said:


Hey CrazyBimmer, what exactly is RAAMmat? Is it liquid or solid or how do you use it? The dealership won't fix my rattles and I have to do it solo.

its deatening material... ever heard of dynamat? Same idea.. its a soild sheet thats suppose to help isolate sound.

Yea im not good at explaining things. :)
 

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CrazyBimmer said:



its deatening material... ever heard of dynamat? Same idea.. its a soild sheet thats suppose to help isolate sound.

Yea im not good at explaining things. :)
No, I totally understand what it is now :) . Now I gotta find out where to get it and how to install it so the hk sub stops rattling.
 

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Door Rattle

What about the rattle from the door panels, what have you guys done to fix this. the dealer told me he cant do anything except turn the bass down. the passenger side is really bad.
thanx.
 

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Re: Door Rattle

Jaydev said:
What about the rattle from the door panels, what have you guys done to fix this. the dealer told me he cant do anything except turn the bass down. the passenger side is really bad.
thanx.
I have the same problem - door rattle is driving me bonkers. May try to RAMMAT it sinc eI know the dealers can't/wont help it (and might break something trying anyhow).

Anyone else here notice the direct breeze you get through the tweeters/ door handle? You'll feel it esp in winter, its like the window is open but its coming right through the door! (I've checked other coupes through MY 02 and they all seem to have it). Seems like the doors could really use something...
 
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