2006 BMW Z4 Unknown Or Other Problems

THE CONVERTIBLE TOP FAILED 2011/30229 MILES, STILL UNDER CPO WARRANTY. THE DEALERSHIP ONLY TOPPED OFF THE HYDRAULIC FLUID AND CLAIMED NO LEAK FOUND. IT FAILED AGAIN 2014/45809 MILES. THIS TIME SEALS WERE REPLACED AND HYDRAULIC LINES. GOODWILL REPAIR WITH 50% OUT OF POCKET. IT FAILED AGAIN EARLIER THIS YEAR 2018/62112 MILES. THIS TIME I WAS QUOTED $2,938 TO $3,658. I HAD IT DIAGNOSED IN MAY AND WAS WAITING FOR AN ANSWER OF THE SERVICE MANAGER ABOUT BMW ASSISTING WITH THE REPAIR AND HAD NOT HEARD BACK. I INQUIRED AGAIN TWO DAYS AGO AND GOT A REPLY THAT BMW WOULD NOT PICK UP ANY OF THE REPAIR COST. IT APPEARS THAT IT WAS A SLOWLY DEVELOPING DEFECT. WHERE WOULD HAVE THE FLUID HAVE GONE AT THE FIRST REPAIR? ALSO DOING SOME RESEARCH TURNED UP A LOT OF THE SAME TROUBLE FOR OTHER OWNERS. APPARENTLY IT IS A DESIGN FLAW. WATER NOT...

THE VEHICLE WAS PARKED IN A GARAGE AND SET ON FIRE, RESULTING IN A HOUSE BEING BURNED DOWN AND THE FATALITY OF MY FATHER. THE FIRE MARSHAL'S REPORT WAS INCONCLUSIVE AS TO HOW THE FIRE STARTED.