burnt out lightbulb!
bulbs or maybe your brake light switch is bad. otherwise, not sure.
Where is right brake light fuse on a 1999 Mercedes E320? Thank you.
a mis adjusted brake light switch could cause that fault.
http://www.youtube.com/watch?v=AWjIZBuPLZ0
The most likely cause is the brake light switch has failed check if the brake lights are working.
No
In a 2000 Mercedes-Benz S500, the brake light fuse is typically located in the fuse box situated in the engine compartment or under the dashboard on the driver's side. The specific fuse for the brake lights is usually labeled in the fuse diagram, which can be found on the cover of the fuse box or in the owner's manual. Check the fuse for continuity and replace it if it's blown to restore functionality to the brake lights.
How to replace front brake pads on Mercedes s430
Where is the brake switch in Mercedes Benz E320, 1999 located? How do I replace it?
Remove the Mercedes-Benz wheel and tire. Remove the brake pad and hardware. The brake pads will come off. Reverse the process to install the new brake pads.
turn the little black knob to the right of the brake light on your dash clockwise