BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Red brake light won't go off after BRAKES DONE=T

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      01-26-2013, 08:52 AM   #23
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Originally Posted by David1 View Post
You are partially correct. Yes it is always active, but on standby. For normal braking conditions, the difference from front to rear is designed into the master cylinder and is called brake bias. EBFD controls the brake bias in heavy braking along with DSC activation. Normal driving is purely mechanical on all BMW cars. If your brakes last that long you either drive mostly highway or drive like grandma. My X5 goes through front pads and roters every 19k miles and rears every 35k miles. My 335 goes through rear pads first. My rears are good for an average 16k miles and fronts 30k+ if were to leave them on. If you "DRIVE" a BMW, you do not get even pad life. You get your brake life based on you driving style not the vehical.
Why are we comparing brake performance between an X5 vs. and E90? Two totally different vehicles. I don't drive like a grandma, I drive like a person who can achive excellent and even brake wear performance, and excellent fuel mileage, all the while driving my car like BMW intended (until they went all Lexus on us). But I don't live in a large city either, but I do drive to one every day. And I am correct about the EBFD. You are are correct the brake bias is built into the valving at the master brake cylinder, but the bias is fine tuned by the EBFD functionality programmed into the system.
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