non-metallic rattle from rear side when going over pothole or bump

[tintoverano]

hi,

I'm hearing a non-metallic rattle type of sound going over bumps and potholes from the rear side, as if it were happening inside the cabin behind the seat

comes only in case of bigger bumps, potholes and higher speed

the spring is ok, the adaptive strut is not leaking

could this be something related to the cabin trim, ...?

what should I check?

thanks

 

[tintoverano]

update: noise is coming from seat head support height

 

[LordLolzeye]

update: noise is coming from seat head support height

What do you mean by "seat head support height"? Do you have a pic?

 

[Smartbear]

update: noise is coming from seat head support height

What do you mean by "seat head support height"? Do you have a pic?

I presume he means headrest height, it could be the rear screen where it rests on the rear deck maybe? If you use the search function there’s plenty on eliminating various squeaks & rattles on the e89
Rob

 

[Col280]

I have exactly the same non metallic noise from my 2010 E89. The car has been up on the lift at a friends garage, no problems were found with the suspension. The noise sounds as though it’s coming from behind the passenger seat. I’ve not had time to investigate any further. Any ideas would be great.

 

[Smartbear]

I have exactly the same non metallic noise from my 2010 E89. The car has been up on the lift at a friends garage, no problems were found with the suspension. The noise sounds as though it’s coming from behind the passenger seat. I’ve not had time to investigate any further. Any ideas would be great.

As per my post above, plenty of info on here using the search function
Rob

 

[Nictrix]

Our sunvisors make a noise now and again that you would swear comes from behind you.

 

[tintoverano]

update: noise is coming from seat head support height

What do you mean by "seat head support height"? Do you have a pic?

I presume he means headrest height, it could be the rear screen where it rests on the rear deck maybe? If you use the search function there’s plenty on eliminating various squeaks & rattles on the e89
Rob

yes, Rob - thanks - didn't know how it was called TIL

the rear deck sounds just right, I look into it

 

[tintoverano]

getting closer: https://e89.zpost.com/forums/showthread.php?p=13435434#post13435434

 

[tintoverano]

also https://z4-forum.com/forum/viewtopic.php?f=45&t=47943&p=1720323#p1720323

 

[tintoverano]

how to remove the plastic cover?

those torx screws are below the linkage

 

[tintoverano]

how to remove the plastic cover?

those torx screws are below the linkage

just had to find where to stop the roof

 

[tintoverano]

whoa whoa

adjusting the rubber space buffers worked https://www.newtis.info/tisv2/a/en/...acer-buffers-on-the-soft-top-linkage/AfKTvqOq

I had the noise coming from behind the passenger seat on the right side, so raised those two buffers - lower: ~1.5mm, upper: ~1mm

what a relief this test drive was

thanks for pointers Rob

 

[nikkireed]

yes that is an issue

 

[tintoverano]

yes that is an issue

not anymore

 

[tintoverano]

from time to time I still had some rattle when speed, bump and/or pothole got in sync to trigger it, but it seems those few cases are gone, since I replaced roof microswitches #4, #5 as preventive maintenance

I happily realized the other day, that I don't hear the rattle anymore the places where it got always triggered

there's a step, putting the roof back together, which is probably responsible for this:

 

[mcbutler]

Our sunvisors make a noise now and again that you would swear comes from behind you.

Hah, agreed I spent ages looking for it... lol

 

[Silverstar]

whoa whoa

adjusting the rubber space buffers worked https://www.newtis.info/tisv2/a/en/...acer-buffers-on-the-soft-top-linkage/AfKTvqOq

I had the noise coming from behind the passenger seat on the right side, so raised those two buffers - lower: ~1.5mm, upper: ~1mm

what a relief this test drive was

thanks for pointers Rob

How do you adjust those space buffers? just pull them up?

 

[tintoverano]

yes, release the screws a bit and move up

 

[Silverado]

Hello,

I have the same problem unfortunately newtis is not available anymore...

So is that possible to show me what to tighten ?

Maybe on https://www.realoem.com/bmw/fr/partgrp?id=LM51-EUR-07-2009-E89-BMW-Z4_30i

Please