TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ E350. WHILE DRIVING 50 MPH, THE CONTACT NOTICED AN ABNORMAL SMOKE ODOR IN THE VEHICLE. THE CONTACT STATED THAT THE HEATING ELEMENT IN THE DRIVER SEAT BECAME OVERHEATED AND BURNED THROUGH THE LEATHER SEAT CUSHION AND THE CONTACT'S PANTS. THERE WERE NO INJURIES. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 87,890. THE VIN WAS UNAVAILABLE.