2000 BMW M COUPE Structureframe And Members Problems

BMW Z3 M COUPE SUBFRAME BROKE *CN

1) CAR MODEL IS A 2000 BMW M COUPE (VARIATION OF THE Z3 WITH HARDTOP) WITH 55K MILES. IN RECENT YEARS THESE CARS (ALL Z3 MODELS) HAVE SHOWN SIGNS OF REAR SUBFRAME FAILURE. AFTER INVESTIGATING CREAKING AND SQUEAKING NOISES COMING FROM THE REAR OF MY CAR I DISCOVERED A CRACK ON THE SUBFRAME WHERE THE DIFFERENTIAL IS MOUNTED TO THE TRUNK FLOOR PAN OF THE CAR. 2) IF THIS CRACK GOES UNFIXED, IT WILL SPREAD POSSIBLY TEARING THE DIFFERENTIAL FROM THE CAR, AND RENDER THE CAR USELESS. 3) PROBLEM IS UNSOLVED CURRENTLY. *NM

TO WHOM IT MAY CONCERN, AS AN OWNER OF A 2000 BMW Z3 M COUPE E36/8, I AM CONCERNED ABOUT THE DESIGN DEFECT OF THE SUB-FRAME ON MY VEHICLE. I LEASED MY VEHICLE NEW ON 12/1999 AND UPON THE EXPIRATION OF THE LEASE, PURCHASED THE VEHICLE FROM BMWNA ON 10/2002; I HAVE BEEN THE SOLE OWNER/OPERATOR OF THIS VEHICLE. DURING THIS TIME, I HAVE PLACED OVER 49,000 STREET DRIVEN MILES ON THE CAR WITH ABSOLUTELY NO COMPETITIVE EVENTS (I.E. RACING, AUTOCROSSING, DRAG-RACING, ETC.). THAT SAID, LESS THAN THREE MONTHS AGO, A MECHANIC DISCOVERED AND SUBSEQUENTLY REPAIRED THE BEGINNINGS OF A CRACK ON THE DIFFERENTIAL MOUNT OF MY SUBFRAME. BASED ON EXPERIENCE OF FELLOW BMW Z3 OWNERS IN THE COMMUNITY, MY CONFIDENCE IN THE SUB-FRAME DESIGN IS WANING. PLEASE LET ME KNOW WHAT ADDITIONAL INFORMATION YOU REQUIRE OF ME TO FACILITATE THIS REQUEST.

MANUFACTURING WEAKENESS/DEFECT IN THE REAR SUBFRAME WELDS AND DIFFERENTIAL MOUNTS. *AK