Power Window Calibration: 7-Series
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2003 BMW Z8, 2003 BMW Z4, 2003 BMW X5, 2003 BMW M5, and 2003 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
Ensure window to be initialized is in full open position. Close door of window that needs to be initialized. Press and hold window switch all the way down for approximately 17 seconds. Lift switch and hold up. Window will move up through its full travel, then down and back up again. Test function of toll feature.