2002 CLK 430. When I got it a month ago, I ran a checkup by mercedes and everything was fine. Since last week, from time to time, with no apparent reason, the ABS, ESP, and BAS lights go on , all 3, and the alert beeps. Sometimes I drive 50 miles with no alert, sometimes as soon as I start both 3 go on alert. Very often i stop the engine, and restart and they go away. Sometimes they come back. But in all cases all 3 alerts are together, either off or on, never one alert alone. Any idea?