1997 BMW 540IA Engine And Engine Coolingcooling Systemfan Problems

1. BROUGHT MY CAR TO FIRESTONE AUTOMOTIVE REPAIR IN LOS ANGELES CALIFORNIA AND HAD THE THERMOSTAT REPLACED - WORK COMPLETED BY FIRESTONE - 2-5 DAYS LATER WENT TO BEVERLY HILLS BMW TO HAVE COOLANT RESEVOIR REPLACED WAS TOLD I NEEDED A NEW THERMOSTAT (JUST REPLACED AT FIRESTONE) AND WATER PUMP AND THAT I HAD A MAJOR ENGINE LEAK (LATER WAS TOLD I HAD A MINOR ENGINE LEAK NOT WORTH REPAIR AT THAT POINT) - HAD WATER PUMP REPLACED. - RECIEVED VEHICLE FROM BEVERLY HILLS BMW WITH THE ENGINE COVER REMOVED AND VEHICLE NOT CHECKED AS ASKED - THIS TOOK 3 WEEKS! 2. THE PROBLEM: WHILE DRIVING AT 65 MPH ON THE HWY 2 HOURS FROM MY HOUSE AN EXPLOSION OCCURED IN THE ENGINE BAY OF THE VEHICLE. 4 PEICES OF THE FAN HAD SHOT THROUGH THE HOOD OF THE VEHICLE MAKING A LARGE 1 INCH SLIT ACCROS THE ENTIRE HOOD...