TL*THE CONTACT OWNS A 2003 MERCEDES BENZ ML350. WHILE DRIVING AT AN UNKNOWN SPEED, THE CONTACT SMELLED A BURNING ODOR. HE NOTICED THAT THE DRIVER'S SEAT WAS BURNING. IF IT HAD NOT BEEN FOR HIS WALLET IN HIS BACKPOCKET, HIS PANTS WOULD HAVE CAUGHT FIRE. THE ELECTRICAL WIRES BURNED THROUGH HIS LEATHER SEATS. THE CONTACT SEARCHED THE INTERNET, BUT FOUND NO RECALLS PERTAINING TO THIS FAILURE. THE VEHICLE HAS NOT YET BEEN TAKEN TO THE DEALER. THE FAILURE MILEAGE WAS 51,400.