TL* THE CONTACT OWNS A 2007 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE FRONT DRIVER SIDE SEAT HEATER BEGAN SMOKING AND BURNED THROUGH THE LEATHER SEAT. THERE WAS NO PERSONAL INJURY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSIS. THE MANUFACTURER WAS NOT MADE AWARE OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 50,000.