Pebble/rock in Dust Shield , Noise

[E92Adan]

Just purchased my F80 and I seem to have gotten hit with the dust shield bug. High pitch metal scratching noise. I’ve read many of the forums, I’ve hit/bent my dust shield, taken the tires off. Noise is still there. Next step to just take off the shield/rotors? Is there also a permanent fix for this?

[E92Adan]

https://youtube.com/shorts/rfyaEMtqU...70CqBI4cTSyFvN

[M3SQRD]

Is it making the noise constantly or only when you hit the brakes? I don’t hear anything at one point and then I clearly hear it.

I’ve had it happen once on the left rear and it was extremely loud even with the windows up. I suppose the sound can be different depending on the size and shape of the rock.

[E92Adan]

Originally Posted by M3SQRD

Is it making the noise constantly or only when you hit the brakes? I don’t hear anything at one point and then I clearly hear it.

I’ve had it happen once on the left rear and it was extremely loud even with the windows up. I suppose the sound can be different depending on the size and shape of the rock.

Only when I’m driving/rolling. Hitting the breaks does not affect the noise. In this clip I was going aboit 10-15mph.

[alex2364]

I'm assuming you're talking about the brake shields. What year is your car? There was a TSB for cars up to 2017. You'll probably need to pay for it since it's not under warranty anymore.

https://f80.bimmerpost.com/forums/sh....php?t=1380764
https://f80.bimmerpost.com/forums/sh....php?t=1206195

[E92Adan]

Originally Posted by alex2364

I'm assuming you're talking about the brake shields. What year is your car? There was a TSB for cars up to 2017. You'll probably need to pay for it since it's not under warranty anymore.

https://f80.bimmerpost.com/forums/sh....php?t=1380764
https://f80.bimmerpost.com/forums/sh....php?t=1206195

My car is a 2016, how much will that run me? Knowing BMW, I assume it’s expensive 😂

[M3SQRD]

Originally Posted by E92Adan

Only when I’m driving/rolling. Hitting the breaks does not affect the noise. In this clip I was going aboit 10-15mph.

I listened to it again and I do hear it from the beginning to end. All I did to address the issue on my ‘16 was to bend the shield (push the top edge inward) around its outer circumference. Haven’t had it happen again since bending the shield. Cost: $0.00, just 5-10 min worth of effort to do all of them.

[arfboy]

Originally Posted by E92Adan

Just purchased my F80 and I seem to have gotten hit with the dust shield bug. High pitch metal scratching noise. I’ve read many of the forums, I’ve hit/bent my dust shield, taken the tires off. Noise is still there. Next step to just take off the shield/rotors? Is there also a permanent fix for this?

Apparently, there was an updated design for the brake dust shield in 2018, which reduced/eliminated this issue: https://www.youtube.com/watch?v=JgF8zMT0MII.

[Colinv6]

Originally Posted by arfboy

Apparently, there was an updated design for the brake dust shield in 2018, which reduced/eliminated this issue: https://www.youtube.com/watch?v=JgF8zMT0MII.

My 2020 car with CCB still does it.

Extra paranoid as you never know if it’s damaging the discs until you can stop to push the backing plate. It’s usually a tiny little pebble.

[dezzracer]

My 2018 CS experience this once. I simply backed up and apparently it spit it out.