14 years E90 M3 has 'ji ji ji' noise when slow speed bump

[gugotim]

I have bought a silverstone E90 M3 in good condition, drives fantastic.

I just have one issue: when drive over a speed bump, the four corners of the car makes 'ji ji ji' noise, and maybe the moonroof too.

Is there a way to fix this problem? I know this is a 14 years old car, but I really like how it looks and drives, want to make it a masterpiece to have in a long time.

[vitalsigns]

Check all your control arm and other bushings and your motor mounts. They wear over time and mileage and once worn can cause noise.

[SpacegrayMe90]

Sheesh, such a timeless beauty. Aging like fine wine at fourteen years.

Do you have a video demonstrating this? That would be helpful. Are you running an aftermarket suspension?

[rcracin]

it's the door seals and moonroof seals. clean them with alcohol.

[gugotim]

Originally Posted by rcracin

it's the door seals and moonroof seals. clean them with alcohol.

I will try to use WD40 for seals

[gugotim]

Originally Posted by vitalsigns

Check all your control arm and other bushings and your motor mounts. They wear over time and mileage and once worn can cause noise.

I think the sound comes from interior instead of chasis

[gugotim]

Originally Posted by SpacegrayMe90

Sheesh, such a timeless beauty. Aging like fine wine at fourteen years.

Do you have a video demonstrating this? That would be helpful. Are you running an aftermarket suspension?

All stock, the sound is hard to be recorded by phone, I thinks it's from interior

[amrazM]

gummi pfledge for the seals, its from the shadowline trim.

[GORDON.M3]

Originally Posted by gugotim

I will try to use WD40 for seals

wd40 will make it even worse. that should not be used on rubber seals, it will eat the seals.

[Scrippy]

Pretty vague intro to an issue dude. Seems like you’ve tried nothing to this point. Anyways I’d ask for help from a buddy and take drive with’em. They could feel for vibration/noises while you produce them recreating the problems. Have’em sit in the back seat and passenger front to snoop around. Or have them drive while you snoop around.

[gugotim]

Originally Posted by Scrippy

Pretty vague intro to an issue dude. Seems like you’ve tried nothing to this point. Anyways I’d ask for help from a buddy and take drive with’em. They could feel for vibration/noises while you produce them recreating the problems. Have’em sit in the back seat and passenger front to snoop around. Or have them drive while you snoop around.

It's pretty obvious to experience in person, I think the robber makes this noise. I can take to a shop to check. Thanks for reply.

[gugotim]

Originally Posted by GORDON.M3

wd40 will make it even worse. that should not be used on rubber seals, it will eat the seals.

I find this one of wd40 designed for seals, plan to try this out.

https://wd40.asia/tips-ideas/diy/how...er-window-seal

[GORDON.M3]

Originally Posted by gugotim

I find this one of wd40 designed for seals, plan to try this out.

https://wd40.asia/tips-ideas/diy/how...er-window-seal

don't use the spray, use this from Honda. it works!


This is the stuff they use in classic vintage cars and it makes the seals look like brand new again at the auctions lol...

[gugotim]

Originally Posted by GORDON.M3

don't use the spray, use this from Honda. it works!


This is the stuff they use in classic vintage cars and it makes the seals look like brand new again at the auctions lol...

See a lot of good reviews on Amazon, I will try this one, thanks

[Helmsman]

Originally Posted by GORDON.M3

don't use the spray, use this from Honda. it works!


This is the stuff they use in classic vintage cars and it makes the seals look like brand new again at the auctions lol...

Coming close. I use a tad lip grease (..) once a year or so on the filt bit sealing towards the shadow trim. Goes silent immediately.

[gugotim]

Thanks everyone , WD40 silicone for seals can solve this problem.

And like GORDON.M3 said, the spray is hard to control, it will spray to window and paint of the car, so I will try grease next time.

Here are some sexy photos to enjoy