Got a 2000 Mercedes E320, it has a starting problem. When you go to start it, the starter will bump over a qurter turn and stop and if you keep holding it in the start position, after a few seconds it will start normally.... Put a volt meter on the starter solenoid small wire and when it does not roll, there is no voltage, so know it's not the starter. Was looking it up online and most posts say it's probably the key fob........... I cleaned the lenses on the fob and the ignition switch and put new batteries in. Think it's time for a new fob?