1. SEATS FELT VERY HOT TO THE POINT OF BURNING. HAD TO TURN HEATER OFF. . BURNED HOLES IN BOTH SEATS AND IN COAT OF PASSENGER. 3. SEAT HEATERS REPLACED. ONE ABOUT TWO YEARS AGO BY VOLVO DEALER. PART WAS NOT RETURNED. OTHER HEATER REPLACED LAST MONTH BY LOCAL GARAGE. I HAVE OLD HEATER, WHICH HAS A BARE WIRE STICKING OUT FROM BURNED HOLE IN HEATER PAD.*AK