1. Press and hold the "BC" (Board Computer) button on the turn signal stalk.
2. While holding down the "BC" button, turn the ignition key to the "On" position.
3. Continue to hold down the "BC" button for about 10 seconds, until the brake fluid service light begins to flash.
4. Once the brake fluid service light begins to flash, release the "BC" button.
5. The brake fluid service light will now be reset.
Note: If the brake fluid service light does not reset after following the above steps, you may need to have your BMW dealer reset it for you.