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      10-13-2013, 08:32 PM   #57
ccondo
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Drives: 2017 BMW M4 - Ferrari Red
Join Date: Jul 2012
Location: Tennessee

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Things are getting better...

So I ordered a StopTech BBK but while waiting I decided to clean the rear rotors to see if it would help or not. Things do already seem like they are getting better. After taking off the wheels and cleaning the outside of the rotors the pulsing is still there but is down probably another 50%.

At this point the outside of the front and rear rotors have been cleaned with 1000 grit sandpaper.

I did have issues trying to clean the rear rotors as they would not spin. I found the instructions on how to take it out of park but they still wouldn't spin. I ended up putting the wheels back on rolling the car back and taking the wheels off again to sand the rotors.

At this point I am tending to agree about the rotors not being warped and it being brake pad deposit.

If anyone has a way of turning the rotors when the car is jacked up I would appreciate it.
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