This Problem Across All Years
TOOK VEHICLE IN FOR ENGINE MAINTENANCE AND ASKED THEM TO ADDRESS SQUEAKS AND RATTLES. ON INSPECTION IT WAS FOUND THAT THE REAR CROSSMEMBER HAD ALMOST COMPLETELY SEPARATED FROM THE UNIBODY AND THE MOUNT HOLDING THE DIFFERENTIAL IN HAD ONLY 1/4 IN OF 4 INCHES HOLDING THE AFT END OF THE DIFFERENTIAL. COMPLETE FAILURE COULD HAVE CAUSED A CATASTROPHIC CHAIN OF EVENTS CAUSING A CRASH AND POSSIBLE FATALITIES. LOOKING ON LINE I FOUND NUMEROUS FAILURES OF THE SAME KIND RESULTING FROM METAL FATIGUE BROUGHT ON BY FAULTY DESIGN. AT LEAST THIS WAS THE OPINION OF OTHER PEOPLE WITH THE SAME FAILURE. ONE PERSON HAD A PHDS IN METALLURGY.
TOOK VEHICLE IN FOR ENGINE MAINTENANCE AND ASKED THEM TO ADDRESS SQUEAKS AND RATTLES. ON INSPECTION IT WAS FOUND THAT THE REAR CROSSMEMBER HAD ALMOST COMPLETELY SEPARATED FROM THE UNIBODY AND THE MOUNT HOLDING THE DIFFERENTIAL IN HAD ONLY 1/4 IN OF 4 INCHES HOLDING THE AFT END OF THE DIFFERENTIAL. COMPLETE FAILURE COULD HAVE CAUSED A CATASTROPHIC CHAIN OF EVENTS CAUSING A CRASH AND POSSIBLE FATALITIES. LOOKING ON LINE I FOUND NUMEROUS FAILURES OF THE SAME KIND RESULTING FROM METAL FATIGUE BROUGHT ON BY FAULTY DESIGN. AT LEAST THIS WAS THE OPINION OF OTHER PEOPLE WITH THE SAME FAILURE. ONE PERSON HAD A PHDS IN METALLURGY.
THE DIFFERENTIAL MOUNT FOR THE CAR HAS TORN LOOSE FROM THE TRUNK FLOOR IT IS WELDED TO. THERE WAS NO ACCIDENT BECAUSE I FOUND THIS DEFECT BEFORE ONE OCCURRED. HAD I NOT FOUND THIS DEFECT, THE ENTIRE REAR AXLE COULD HAVE COME LOOSE FROM THE VEHICLE WHILE DRIVING IT. *TR
THE DIFFERENTIAL MOUNT FOR THE CAR HAS TORN LOOSE FROM THE TRUNK FLOOR IT IS WELDED TO. THERE WAS NO ACCIDENT BECAUSE I FOUND THIS DEFECT BEFORE ONE OCCURRED. HAD I NOT FOUND THIS DEFECT, THE ENTIRE REAR AXLE COULD HAVE COME LOOSE FROM THE VEHICLE WHILE DRIVING IT. *TR
DIFFERENTIAL SUBFRAME CAUSES WELD FAILURES APPEARING IN TRUNK AND OTHER BODY LOCATIONS. I BELIEVE THAT THIS IS CAUSED BY A DEFECT THAT GENERATES A SIGNIFICANT SAFETY HAZARD. THIS DEFECT IS BEING REPORTED BY AN INCREASING NUMBER OF Z3 OWNERS OVER TIME. *TR
DIFFERENTIAL SUBFRAME CAUSES WELD FAILURES APPEARING IN TRUNK AND OTHER BODY LOCATIONS. I BELIEVE THAT THIS IS CAUSED BY A DEFECT THAT GENERATES A SIGNIFICANT SAFETY HAZARD. THIS DEFECT IS BEING REPORTED BY AN INCREASING NUMBER OF Z3 OWNERS OVER TIME. *TR
FAILURE OF THE TRUNK FLOOR SUPPORTING THE DIFFERENTIAL, RENDERING THE CAR UNDRIVEABLE. *JB
FAILURE OF THE TRUNK FLOOR SUPPORTING THE DIFFERENTIAL, RENDERING THE CAR UNDRIVEABLE. *JB
FOUR MONTHS AGO I PURCHASED A STOCK EXCELLENT CONDITION 99 M ROADSTER (MY 4TH BMW IN 5 YEARS). 75000 MILES, NO TRACK TIME, NO MODIFICATIONS TO THE DRIVELINE. NORMAL DRIVING HAS CAUSED THE DIFFERENTIAL MOUNTS TO FAIL - THE MOUNT IS RIVETS TO THE TRUNK BED AND THE RIVETS ARE POPPING OUT. IF I LAY ANY SIGNIFICANT POWER THROUGH THE DRIVELINE THE DIFFERENTIAL WILL TORQUE RIGHT OFF. MY DIFFERENTIAL IS FALLING OFF DUE TO NOTHING MORE THAN ILL-DESIGN. I WILL HAVE TO FIND A WAY TO REBUILD AND SUPPORT THIS AREA BECAUSE THIS IS MY ONLY VEHICLE AND IT'S NOT REALLY DRIVABLE. I HEAR FROM LOCAL FOLKS AND READ ONLINE THAT THIS IS A COMMON PROBLEM WITH THIS VEHICLE, AND BMW'S ONLY REPAIR IS BACK TO FACTORY SPEC. CONSIDER THIS COMPLAINT OFFICIAL FROM ME TO BMW FOR THEIR INADEQUATE DIFFERENTIAL MOUNT DESIGN ON THE Z3 BODY. TRUE REPAIR WILL BE VERY COSTLY AND TIME CONSUMING. *JB
FOUR MONTHS AGO I PURCHASED A STOCK EXCELLENT CONDITION 99 M ROADSTER (MY 4TH BMW IN 5 YEARS). 75000 MILES, NO TRACK TIME, NO MODIFICATIONS TO THE DRIVELINE. NORMAL DRIVING HAS CAUSED THE DIFFERENTIAL MOUNTS TO FAIL - THE MOUNT IS RIVETS TO THE TRUNK BED AND THE RIVETS ARE POPPING OUT. IF I LAY ANY SIGNIFICANT POWER THROUGH THE DRIVELINE THE DIFFERENTIAL WILL TORQUE RIGHT OFF. MY DIFFERENTIAL IS FALLING OFF DUE TO NOTHING MORE THAN ILL-DESIGN. I WILL HAVE TO FIND A WAY TO REBUILD AND SUPPORT THIS AREA BECAUSE THIS IS MY ONLY VEHICLE AND IT'S NOT REALLY DRIVABLE. I HEAR FROM LOCAL FOLKS AND READ ONLINE THAT THIS IS A COMMON PROBLEM WITH THIS VEHICLE, AND BMW'S ONLY REPAIR IS BACK TO FACTORY SPEC. CONSIDER THIS COMPLAINT OFFICIAL FROM ME TO BMW FOR THEIR INADEQUATE DIFFERENTIAL MOUNT DESIGN ON THE Z3 BODY. TRUE REPAIR WILL BE VERY COSTLY AND TIME CONSUMING. *JB