Quote:
Originally Posted by ard
OP- How do you think the computer "knows" how much pad thickness is left????
THe answer is, it doesnt.... the mileage is just a guesstimate.
Drive really hard, ride the brakes...you'll get them done under the wire.
Or you could measure your own pads and rotors to figure out a more exact timeline.
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there's a sensor on the brakes - for what exactly I don't remember, but logic tells me since idrive shows pad wear and not rotor wear, I'll go with that one. Obviously it's not exact since it goes in maybe 1k increments.
As for replacing pads early, it is up to the dealer whether they'll do it for you when you're close, but most will. The rotors are more strict, see my experience:
http://www.xoutpost.com/bmw-sav-foru...-question.html