I am having something a little similar. After Auto pilot breaker a little hard now when I break right when the car stops the breaks do a small clunk/clacking sound. Did not do it before the hard breaking. The break pedal seems a little loose now because if I hold my foot against the side of the pedal when the car is slowing down with regen it does not make the sound. It seems like the break pedal is just loose. I know the breaks should make a little bit of a sound but not this much. Thoughts anyone? Anyone else have this too?