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      01-22-2012, 07:57 PM   #5
Echo M3
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No_Country
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Drives: E90 M3
Join Date: Sep 2009
Location: NY

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Quote:
Originally Posted by ThunderMoose View Post
I am pretty sure that our e-brake is a drum style brake on the inner hub of the rotor so it should not be causing your rotors to warp.

Are you 100% sure your first set was warped? or did the service guys just go ahead and replace them? From everything I've read, 99% of "warped rotors" are really just uneven brake pad deposit. Try hitting the rotors with a hose the night before and then doing a series of hard stops the next morning when pads are cold and abrasive -- i.e. get up to 60 and then hard on brakes - repeat 6-10 times and then follow-up with some moderate to light braking to properly transfer pad material.

Some of the more knowledgeable forum members may give you some better suggestions.
I was just going to mention that. It's a possibility that the OP's rotors simply have pad deposition, which is very different from a warped rotor.
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