I was driving home last night with a full tank of gas in my 01 ML320, and all of a sudden all of the dashboard lights came on and the fuel gauge went down to empty. I drove home, and started the car this morning. The dashboard lights are now off, but the fuel tank is still showing empty. Does anyone know what is happening, or what I should do?

Go to the dealer, should be under warranty. Could be a bad connector, plug, short or computer glitch