DRIVING A 2007 MAZDA CX-7 WITH 36, 671 MILES ON IT WHEN THE AIR CONDITIONER STOPPED WORKING. WHEN I LOOKED UNDER THE HOOD AND TURNED THE AIR ON, THERE WERE SPARKS AND SMOKE. ACCORDING TO MY RESEARCH THIS PROBLEM IS COMMON IN THIS MODEL AND MAZDA HAS NOT RECALLED THIS PART. PART SPECIFICALLY IS THE AIR COMPRESSOR, IT LOCKS UP, STOPS THE ENGINE, AND TEARS UP THE SERPENTINE BELT. SINCE I AM OVER THE WARRANTY BY 600 MILES THIS WILL COST ME UPWARDS OF 2,000. *TR