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BMW M5 F90 (2018+) General Forums Wheels | Tires | Suspension | Brakes | Chassis    For those with steel brakes

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      04-03-2018, 11:46 AM   #1
Quickburn7
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For those with steel brakes

My brakes are squeeling and making a weird grinding noise when in traffic and in normal driving when coming to a stop. It happens if they are hot or cold. Anyone else experiencing this? I only have 350 Miles on the car.
The squeeling does not bother me since I am used to CCB but the grinding noise does. Any thoughts?
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      04-03-2018, 11:54 AM   #2
onfireX5
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The brakes on my X5M and M5 are identical. M5 has been quiet so far. X5M always starts to squeal between washes. Brake dust does it. Wash it and is quiet for a while. Never grinding on either. Try spraying off the calipers when cold with a water hose and see if it goes away.
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      04-03-2018, 01:23 PM   #3
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hopefully the f90 doesn't have the same issue the M3/4 have with getting small rocks stuck in the brake shields.... If I go over any rough gravel roads I can bet that I'll get a grind or two in the following days
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      04-03-2018, 01:59 PM   #4
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if its a pebble in the heat shield it should be really loud and likely coming from just one caliper. if that seems like it then try driving a bit in reverse or pressing the heat shield back with your fingers and see if a little pebble falls out.
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      04-03-2018, 02:04 PM   #5
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No issues like this thus far with my M5 (at ~1,100 miles); good luck!
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      04-04-2018, 03:59 AM   #6
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Quote:
Originally Posted by Quickburn7 View Post
My brakes are squeeling and making a weird grinding noise when in traffic and in normal driving when coming to a stop. It happens if they are hot or cold. Anyone else experiencing this? I only have 350 Miles on the car.
The squeeling does not bother me since I am used to CCB but the grinding noise does. Any thoughts?
My brakes were squeaking the day I rolled off the lot. They go away under use, but come back occasionally. Interior also rattled on some of
Our back canyon roads though on the highway, it’s super silent.
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      04-04-2018, 08:15 AM   #7
Quickburn7
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Washed the brakes down last night and checked the heat shield for pebbles. It was squeezing but no grinding on a short drive. Thanks guys!
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      04-04-2018, 09:07 AM   #8
onfireX5
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Quote:
Originally Posted by Quickburn7 View Post
Washed the brakes down last night and checked the heat shield for pebbles. It was squeezing but no grinding on a short drive. Thanks guys!
Brake dust is the devil. Glad it worked.
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