2000 BMW M ROADSTER Structureframe And Members Problems

TL* THE CONTACT OWNS A 2000 BMW M ROADSTER. THE CONTACT STATED THAT THE REAR SUB-FRAME WAS CRACKED AND CAUSING THE REAR DIFFERENTIAL TO DETACH FROM THE VEHICLE. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND A LOCAL MECHANIC. BOTH THE DEALER AND THE MECHANIC INFORMED THE CONTACT THAT THE VEHICLE WAS NOT SAFE TO DRIVE WITHOUT REPLACING THE SUB-FRAME. THE FAILURE MILEAGE WAS 51,800.

SEPARATION OF REAR SUBFRAME MAKING CAR UNSAFE TO DRIVE AND RESULTING IN $12,000 OF REPAIRS. ALTHOUGH EVIDENTLY A WELL KNOWN AND UDERSTOOD FAILURE, IT NEVER RESULTED IN A RECALL, AND I WAS NEVER ADVISED OF THE ISSUE BY BMW, UNTIL TH SUBFRAME WAS ALREADY SEPARATING, MAKING THE CAR UNSAFE TO DRIVE. *TR

MY ULTIMATE DRIVING MACHINE IS SPLITTING FROM THE SEEMS!!! I HAVE A 2000 BMW M ROADSTER (Z3) AND RECENTLY I NOTICE A CREAKING IN THE REAR. THEN ONE DAY ON MY WAY TO WORK I HEARD WHAT SOUNDED LIKE A TEAR. IT TURNS OUT THAT THE REAR DIFFERENTIAL MOUNT HAD SEPARATED FROM THE SHEET METAL UNI-BODY CONSTRUCTION. THE CARS DIFFERENTIAL HOUSING WAS PRACTICALLY DRAGGING ON THE GROUND. THE ONLY THING HOLDING IT TO THE CAR WERE THE SHOCKS AND SPRINGS. THE TRUCK FLOOR THAT THE MOUNT WAS SPOT WELDED TO HAS SEPARATED FROM THE CAR. THIS IS A MAJOR DESIGN FLAW! THE CAR AT THIS MOMENT IS NOT DRIVABLE! MY CAR IS NOW AT A DINAN SHOP. DINAN IS A COMPANY THAT MAKES HIGH PERFORMANCE PARTS FOR BMW'S. WHEN DINAN PARTS ARE USED AND INSTALLED AT AN AUTHORIZED DINAN DEALER A BMW WOULD STILL BE ENTIRELY WARRANTED BY BMW. DINAN...

I BOUGHT A YEAR 2000 M ROADSTER (BMW), AND TWO MONTHS LATER DISCOVERED THAT THE BOTTOM REAR UNDERFRAME HAD CRACKED TO THE POINT WHERE THE TAIL PIPE AND DIFFERENTIAL AREA WERE READY TO DROP TO THE GROUND. I COMPLAINED TO THE DEALERSHIP (WHO HAD SOLD ME THE CAR WITH ONLY A 30 DAY LIMITED WARRANTY), AND THEY HAVE OFFERED TO EITHER REPAIR FOR FREE OR GIVE ME MY MONEY BACK, MY CHOICE. *TR

SUBFRAME FAILURE. THE REAR SUBFRAME SUPPORT WAS RIPPING THE WELDS OUT FROM THE CROSS MEMBER AND TRUNK. I PURCHASED A REPAIR/SUPPORT KIT FROM RANDY FORBES. HAD THE KIT INSTALLED. I NOTICED A CREAKING AND CLANKING NOISE COMING FROM THE REAR OF THE CAR UNDER ACCELERATION. WHEN I CHECKED OUT THE SUBFRAME MOUNT AND THE TRUNK I NOTICED THREE BAD WELDS IN THE TRUNK.*AK

2000 BMW M ROADSTER. REAR SUBFRAME FAILURE IN IT'S EARLY STAGES. HAVE BEEN FOLLOWING ONLINE FORUM COMPLAINTS EXTENSIVELY AND NOTICED DESCRIBED PROBLEMS IN MY OWN CAR. THE SUBFRAME IS BEING PULLED OUT OF PLACE AND TEARING IT'S SPOT WELDS BY THE REAR DIFFERENTIAL MOUNT. *JB

THE REAR SUBFRAME AND DIFFERENTIAL MOUNTS HAVE BEGUN SEPARATING FROM THE TRUNK FLOOR. THIS WAS NOTICED AS A RESULT OF ABNORMAL REAR TIRE WEAR. REPAIR OF THIS FAILURE IS ESTIMATED AT APPROXIMATELY $2,500 BY A BODY SHOP FAMILIAR WITH THIS PROBLEM IN THIS MODEL CAR. THEY HAVE ADVISED THAT CONTINUED OPERATION OF THE VEHICLE IS HAZARDOUS UNTIL THE REPAIR IS MADE. *JB

I TOOK A LOOK AT THE SUBFRAME OF MY CAR AROUND THE REAR DIFF MOUNT AND I HAVE 4 POPPED SPOT WELDS. THEN I TOOK ALL OF THE TRUNK CARPET OUT AND I HAVE 8 POPPED WELDS AND THE LEFT SEAM IS SEPARATED. THIS IS NOT THE ONLY BMW Z3 FOR THIS TO HAPPEN TOO. NHTSA NEEDS TO DO SOMETHING ABOUT THIS. ITS JUST A MATTER OF TIME UNTIL SOMEONE THAT DOESN'T KNOW WHAT TO LOOK FOR HAS THERE REAR DIFF FALL OFF WHEN DRIVING. *JB

SUBFRAME AND DIFFERENTIAL MOUNT TEARS. SPOT WELD TEARS IN FLOOR PAN WITH MULTIPLE FRACTURES ALONG SEAMS. THE DIFFERENTIAL IS READY TO FALL TO THE HIGHWAY WITH ANY HARD BUMP OR JOLT SUCH AS EXPANSION JOINTS. *NM

IN SEPT. 2003, I PURCHASED A USED CERTIFIED PRE-OWNED 2000 BMW M ROADSTER FROM AN AUTHORIZED BMW DEALER. IN LATE 2003, I NOTICED NOISES COMING FROM THE REAR END OF THE CAR WHICH THE DEALER ATTRIBUTED TO A LOOSE GAS TANK HOLDER, WHICH THEY REPLACED. SOON AFTER, THE NOISE RETURNED. I BROUGHT THE CAR BACK 2 MORE TIMES AND THEY COULD NOT FIND A PROBLEM. AFTER REASEARCHING ONLINE, I FOUND OTHER BMW OWNERS HAVE DISCOVERED THE SUBFRAMES OF THEIR CARS WERE COMING UNWELDED FROM THE BODY. AFTER HAVING MY CAR INSPECTED BY AN INDEPENDENT SOURCE, WE DISCOVERED THAT THIS WAS THE CASE FOR MY CAR AS WELL. THE FLOOR OF THE TRUNK IS SPOT WELDED TO THE REAR SUBFRAME USING A DOZEN SPOT WELDS. OVER TIME MERELY DRIVING THE CAR WITH ITS HIGH TORQUE ENGINE CAUSES THESE TACK WELDS TO BREAK CAUSING GREATER DAMAGE TO THE COMPONENTS UNDER THE CAR...