hour it will start.? For weeks i will drive with ease with my 1994 Convertible Mercedes Benz E320 car. Then, randomly I will go in to start it and it won't start. When i turn the keys to the ignition the battery turns on (all these things will work: lights, radio, windshield wiper, etc) everything except the engine. It doesn't even make an effort to start the engine. No sound is coming from the engine. I will then wait an hour, sometimes more than an hour, and it will then start easily. The battery is brand new. The wiring is brand new. What could it be?