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      09-22-2014, 12:19 PM   #5
JoeFromPA
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Drives: '15 AW M3 6MT Stripper
Join Date: Aug 2013
Location: SE PA

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I've developed the same thing at 1600 miles but...

I'm pretty sure it's pad deposits. It develops with heat build-up in the rotors, then goes away when cooling down or modest brake usage.

It's presented itself about 3-4 times and, when braking hard, almost feels like i'm braking on a very broken surface, in that the whole car and steering wheel suddenly feels like it's been pulled right and left simultaneously. Then it goes away quickly.

I admit this is different than other pad deposits I've felt. The first time I felt it, I did think something was wrong with the brakes or tires - it came on very suddenly during a hard braking.
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