TL*THE CONTACT OWNS A 2003 MERCEDES-BENZ ML55. WHILE DRIVING 60 MPH HE ENGAGED THE SEAT HEATER. THE FRONT AND REAR SEATS BECAME EXTREMELY HOT. HE WAS UNABLE TO TURN THE HEATER OFF. HE PULLED OVER AND NOTICED SMOKE AND SPARKS. HE POURED WATER OVER THE SEATS AND THE SPARKS STOPPED. THE SEAT HEATER DID NOT GO OFF UNTIL THE KEY WAS REMOVED FROM THE IGNITION. THE VEHICLE WAS TOWED TO THE DEALER. THE DEALER STATED THAT THE COILS MALFUNCTIONED. THE CURRENT AND FAILURE MILEAGES WERE 28,000. THE CONSUMER STATED THE DEALER REPLACED SEAT AND ELECTRICAL COMPONENTS BUT WILL NOT PROVIDE CONSUMER WITH ANY DOCUMENTATION OR INFORMATION PERTAINING TO THE DEFECT AND REPAIR. UPDATED 09/18/07 *TR