Quote:
Originally Posted by juld0zer
Pretensioning should require the same volume of fluid whether the pads are 1000km old or worn to the last 25%. Disc brakes are self adjusting and this is one of the benefits. Unless there is a piston seal issue that draws the piston back more when the piston is almost at full excursion (which is not rare).
The pedal has become just a way to tell the computer we want to stop. The electronics do the rest. This is actually what they did in the new X5. Scary times ahead!
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Bad example but BMW is definitely using estimated brake pad wear for various DSC functions. It shouldn't have anything to do with regular braking though like people claimed. Brake pre-tensioning doesn't happen every time you lift off the pedal... only in panic situations like accelerating to beat a yellow light and then lifting off the gas abruptly when you realize you won't make it. You'll be met with a nice firm pedal.