rattle when hit a bump

[grm]

i have a rattle in the rear of the car when i hit a bump, you can only hear it with the windows down. i have done a search with no luck. any ideas?

[1996 328ti]

Try pulling on the e-brake slightly when you go over the bump.
Could also be an exhaust hanger?

[m3outtanowhere]

it is the rear brakes. buy new brake shims for the rear, or replace the brakes and sensors.. (NAPA)

[grm]

ok thanks, bmw auto dealer said they were getting worn. i guess i will have to replace soon.

[m3outtanowhere]

yep. i have the same problem. Brakes (unless urgent) are last on my list. I let the light stay on for 3000 miles or so. it allows me time to save money and research the problem and correctly fix it possibly with an upgrade

[m3outtanowhere]

put in new pads today...no more noise.

[grm]

what is the name of the pads you used? did you have to turn your rotors?

[Couverman98682]

When you do your breaks its a good idea to just get new rotors. They are not that expensive and are perfect (not warped or worn).... Bavarian auto parts has them for cheap.

[m3outtanowhere]

When you do your breaks its a good idea to just to get new rotors. They are not that expensive and are perfect (not warped or worn).... Bavarian auto parts has them for cheap.
i agree. nope no new rotors. and the pads for this are stoptec. a little cheaper but im selling the car soon. they work great. infact so well that now im gonna change the front. the car tends to sit to hard when i brake hard. this is very very bad for autocross usage for my rear will brake before the front causing uncontrollable slides. (look at these huge pads!)

[grm]

is it advisable to replace the wear sensors also when you change your rotors and pads if they are not worn into?

[andyman7931]

you don't need to replace the sensors unless they are broken. A couple times I broke mine pulling them out to install in the new pads.

If you need help on the install I may be able to help