'99 C280 sport, BAS/ESP and ABS warning lights
 

These warning lights come on sometimes while driving. When they come on they stay on till I cut the car off then turn it back on. I've replaced the stop light switch because I was told that might have been a problem. That didn't fix the problem. Help please!!!! I also bought the carmd code reader, which works great and I've hooked it up to read these codes but it says there are no problems, which was confirmed by an authorized MB shop.