2008 BMW X5 SAV Fuel System Gasoline Problems

WHEN I WAS DRIVING AROUND 30 MPH AND ABOUT TO MERGE ONTO THE HIGHWAY, AN ORANGE WARNING SIGN CAME UP THAT THE ENGINE WAS OVERHEATING AND THEN IMMEDIATELY AFTERWARD A RED SIGN CAME UP STATING THAT THE ENGINE WAS OVERHEATED AND I COULD HEAR THE LOUD NOISE FROM THE FAN. IMMEDIATELY AFTER THAT THE VEHICLE STALLED AND I HAD TO PULL OVER TO THE SHOULDER. I WAITED FOR ABOUT 15 MIN. AND WHEN I RESTARTED THE VEHICLE, THE FAN WAS STILL LOUD AND THE RED ENGINE OVERHEATED SIGN CAME UP AGAIN. I THEN HAD THE VEHICLE TOWED TO A REPAIR FACILITY. THEY DIAGNOSED THE ISSUE AS A DEFECTIVE ELECTRIC WATER PUMP AND SAID THAT THE WATER PUMP AND THERMOSTAT NEED TO BE REPLACED. THE ESTIMATE FOR REPAIR INCLUDING PARTS AND LABOR IS AROUND $1700.00. THE VEHICLE IS BEYOND THE 4 YEAR, 50000 MILES WARRANTY AND APPARENTLY THERE ARE NO RECALLS...