Originally Posted by Neil McRae
also does the idrive auto update with the new pad or do you need to have it reset?
iDrive doesn't know anything about what pad is in your car or if it has been changed or not. It just guesses at pad wear based on deceleration data. However, if you wear out the contact wear sensor attached to the pad, the "BRAKE" light will come on on the dash, and that won't go away until it is reset with a tool. That has nothing to do with the miles to service number displayed on your iDrive screen.