[Siciliano611]

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