I have a 2003 S430 that cranks over but will not start. The belt broke and I drove about one mile back to my house. I have replaced the belt and the car cranks over but won't start. Could the battery be low and not allowing the engine electronics to start the car? The car did overheat in my driveway, but it shut itself off hopefully before any damage occured. The battery light is on and so is the ESP light. It seems to crank over nicely, but makes no attempt to start. Any ideas before I have it towed to the shop and spend big $$$$ ?