After reading about the use of aggressive pads to machine a problem rotor, isn't that what's done when rotors are turned by a mechanic or dealer. And it seems that after this is done, some still complain of vibrating brake pedals In some cases, even installing new rotors does not help. Perhaps the problem is not the pads or rotors, but rather a worn suspension part.
With my X3 things were not that complicated. I had warped front rotor(s) at 15k miles that were replaced. After 65K miles the problem has yet to return.
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