I have a 2000 ML430 with 62k miles. A few weeks ago the ABS, ets, BAS and srs lights come on and the warning beep goes on. I had the brake switch replaced under a recall. A day later same problem. I drive about 5-6 hours a day. For the first 4 hours nothing but the longer the car is driven in a day the more frequent it happens. After about 6 hours of driving it happens about once every 15 minutes. I have to pull over turn car on and off and it resets itself. Because of how it never happens for the first 4 hours my friend says he thinks its a battery or alternator. Please help do you have any other advice. How can I disable or disconnect the beeping sound till I can get it to the shop in a couple weeks.