Stoplight Switch
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2001 Mercedes-Benz SL500, 2001 Mercedes-Benz S55, 2001 Mercedes-Benz S500, 2001 Mercedes-Benz S430, and 2001 Mercedes-Benz ML430. However, it is still accessible from the selected car via links, so may be relevant.
Stoplight switch is located under dash, above brake pedal. Stoplight switch is self adjusting.