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      05-24-2018, 11:23 AM   #1
Siciliano611
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Howling CCB Brake Noise....Is there ANY real remedy?

So I've read multiple threads on this forum about people with squeaky CCB's but my problem is worse than that its like a damn loud violin harmonic noise when i brake most of the time (when the foot is partially on the brakes). I bought this car used 3 months ago with 33k miles on it and a couple people told me forgo the CCB's but I wanted a SMB fully loaded with comp pack and the only one at the time that looked good had the CCB's. I have tried a couple things people on those threads discussed which is rinsing/spraying the rotors when cold and bedding the hell out of the brakes. Each one fixes the issue maybe for ONE DAY and then its back to the harmonic noise.

I took the car in a few days ago to BMW since I'm still under warranty and they told me these are "normal" noises the CCB's make (they even showed me a SIB about it)....I have to believe that THIS noise is not normal....Anyone in here that was able to fix the issue? thx
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      05-24-2018, 11:28 AM   #2
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This is a video (of a C63s but still) of the exact noise my car makes when braking most of the time

https://player.vimeo.com/video/256801915
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      05-30-2018, 08:41 PM   #3
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Quote:
Originally Posted by Siciliano611 View Post
So I've read multiple threads on this forum about people with squeaky CCB's but my problem is worse than that its like a damn loud violin harmonic noise when i brake most of the time (when the foot is partially on the brakes). I bought this car used 3 months ago with 33k miles on it and a couple people told me forgo the CCB's but I wanted a SMB fully loaded with comp pack and the only one at the time that looked good had the CCB's. I have tried a couple things people on those threads discussed which is rinsing/spraying the rotors when cold and bedding the hell out of the brakes. Each one fixes the issue maybe for ONE DAY and then its back to the harmonic noise.

I took the car in a few days ago to BMW since I'm still under warranty and they told me these are "normal" noises the CCB's make (they even showed me a SIB about it)....I have to believe that THIS noise is not normal....Anyone in here that was able to fix the issue? thx
I would say to try another brake pad set from a different manufacturer it would be your cheapest option, on my e63s has steel rotors I swapped the pads to low dust and they squealed like crazy ,then I swapped then to EBC ceramic red stuff and problem solved better initial bite lower dust and no more squeal
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      07-05-2018, 02:17 PM   #4
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Same exact problem. It's somewhat embarrassing. Let's find a cure.
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      07-05-2018, 06:25 PM   #5
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Quote:
Originally Posted by ayhsmb81 View Post
Same exact problem. It's somewhat embarrassing. Let's find a cure.
The cure is getting new oem brake pads (in my case)....mine were at 4-5mm when I replaced them, they are 12mm new
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      07-05-2018, 10:03 PM   #6
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Quote:
Originally Posted by Siciliano611 View Post
The cure is getting new oem brake pads (in my case)....mine were at 4-5mm when I replaced them, they are 12mm new
At least you were within the specs of needing a change. That would suck if you were at 10mm.

Btw, what did your CBS say as for the mileage to the brake change?
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      07-06-2018, 10:02 AM   #7
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Originally Posted by Siciliano611 View Post
The cure is getting new oem brake pads (in my case)....mine were at 4-5mm when I replaced them, they are 12mm new
Do you happen to have the part numbers for the replacement pads?

*I already did some light googling and have yet to find them.

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      07-06-2018, 11:02 PM   #8
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Quote:
Originally Posted by ayhsmb81 View Post
Do you happen to have the part numbers for the replacement pads?

*I already did some light googling and have yet to find them.

Here you go:

https://www.realoem.com/bmw/enUS/par...6-BMW-M6&mg=34
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      07-07-2018, 09:07 AM   #9
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Quote:
Originally Posted by Flying Ace View Post

Thank you for that Intel regarding the part numbers.

With that, what I was really after (which I should have asked more directly in retrospect) is whether or not OP had to replace strictly the pads or the rotors too.

The latter being a larger bummer.
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      07-07-2018, 10:41 AM   #10
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Quote:
Originally Posted by ayhsmb81 View Post
Thank you for that Intel regarding the part numbers.

With that, what I was really after (which I should have asked more directly in retrospect) is whether or not OP had to replace strictly the pads or the rotors too.

The latter being a larger bummer.
There's no reason behind this concept, but gen 1 CCB owners (circa 2005-09 Porsche and Ferrari owners) have recommended replacing pads when they're half way through for rotor longevity. The pads themselves are $1000

You need to read this thread in its entirety. There are only 2 accurate and 1 inaccurate way of measuring rotor wear. A F80 owner replaced CCBs twice as he tracks on them. The inaccurate measure is just an eyeball check of a wear indicator, the other methods are more accurate and requires removing the rotors and weighing them, or using the Carbotech tool that costs an ungodly amount.

https://f80.bimmerpost.com/forums/sh...1302752&page=3

I wanted to buy a M6 with CCBs. But my planned ownership would span the 70k mile marker and I would have been the owner dumping $12k into replacing them on a car that would be worth about $30 by that time, or I would have to discount the sales price on the car and convince the next buyer to take on the liability.

This is why I think in 6-8 years, all CCB cars will sell at a discount to steel rotor cars, unless they've had CCBs changed.
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      07-07-2018, 12:42 PM   #11
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Quote:
Originally Posted by Flying Ace View Post
There's no reason behind this concept, but gen 1 CCB owners (circa 2005-09 Porsche and Ferrari owners) have recommended replacing pads when they're half way through for rotor longevity. The pads themselves are $1000

You need to read this thread in its entirety. There are only 2 accurate and 1 inaccurate way of measuring rotor wear. A F80 owner replaced CCBs twice as he tracks on them. The inaccurate measure is just an eyeball check of a wear indicator, the other methods are more accurate and requires removing the rotors and weighing them, or using the Carbotech tool that costs an ungodly amount.

https://f80.bimmerpost.com/forums/sh...1302752&page=3

I wanted to buy a M6 with CCBs. But my planned ownership would span the 70k mile marker and I would have been the owner dumping $12k into replacing them on a car that would be worth about $30 by that time, or I would have to discount the sales price on the car and convince the next buyer to take on the liability.

This is why I think in 6-8 years, all CCB cars will sell at a discount to steel rotor cars, unless they've had CCBs changed.
Again, very informative.

The idrive indicates much meat left coupled with the age and visual wear sensors I believe I'm in the pad replacement category.

I'll follow-up with results.
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      07-07-2018, 01:13 PM   #12
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Quote:
Originally Posted by ayhsmb81 View Post
Again, very informative.

The idrive indicates much meat left coupled with the age and visual wear sensors I believe I'm in the pad replacement category.

I'll follow-up with results.
I believe the idrive only estimates pad wear. What does it say right now?
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