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Old 04-16-2008, 12:38 PM   #21
BrianLeveille
Registered User
 
Join Date: Jan 2005
Location: Providence, RI
Posts: 53
My Ride: 325xi
All,

I'm one of those folks who likes to learn to DIY more and more things myself, but have always been hesitant to do brakes as it is a safety feature. Well, after reading up, especially this great DIY, I'm building confidence to do a brake/rotor replacement myself.

I have a question about compressing the piston: how does the piston, pad, and pedal all "know" how to adjust themselves after the brake job is done?? IOW, how does the pad position itself against the rotor with respect to the changing pedal pressure, especially considering that, in my mind, compressing the piston to get the caliper back on messes with that??

Thanks.

-BL
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