I have a 94 320i Mercedes and a warning light came on that looks like a light bulb with an "!"???? I checked my head and tail lights and they seem all good!!! I believe when I stepped on the brake like is when it came on??? Does this mean, I have a brake light out??? PLEASE HELP!!!!

 

I have a 91 and mine only comes on when the car lights are on. Like a small reminder that your lights are on. Not sure if this is the correct answer, but it's my guess.