REAR SUBFRAME / TRUNK FLOOR / DIFFERENTIAL MOUNT FAILURE
- NHTSA ID
- 10970992
- Incident
- Apr 3, 2017
- Mileage
- 233,000 mi
Owner-reported complaints naming the body or structure system, filed with NHTSA
Data refreshed
Reports naming the vehicle structure, frame, body panels, doors, hood and trim. Every record below is an owner-reported complaint about the 2000 BMW Z3 Roadster submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 8 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
REAR SUBFRAME / TRUNK FLOOR / DIFFERENTIAL MOUNT FAILURE
I PURCHASED CAR 6-4-12 AFTER DRIVING THE CAR I NOTICED A SQUEAK AND A CLUNKING NOISE COMING FROM TRUNK, AFTER REMOVING TRUNK LINING THE SPOT WELDS [4] WERE BROKE LOOSE IN TRUNK FLOOR FROM CROSS MEMBER WHERE REAR END IS SUPPORTED.. I TOOK THE CAR TO DEALER WHERE CAR WAS BOUGHT HOPING THE DEALER HAD A SERVICE BULLETIN ON CAR I WAS TOLD THEY WOULD REPAIR CAR AT MY EXPENSE I ASKED IF THAT WAS AN ENGINEERED REPAIR OR JUST A TEMPORARY REPAIR THERE RESPONSE WAS ITS THE FIRST TIME IT HAD EVER HAPPENED.. AFTER SEARCHING THE INTERNET I FOUND IT WAS NOT THE FIRST TIME WELDS HAD COME LOOSE IN THE SUB FRAME AND IF NOT REPAIRED WOULD CAUSE MAJOR DAMAGE AND POSSIBLE CONTROL ISSUES. THIS CAR IS IN EXCELLENT SHAPE NO RUST ISSUES AT ALL WAS ALWAYS GARAGED NEVER DRIVEN IN WINTER I BELIEVE THE SUBFRAME AND REAR AXLE MOUNTING IS UNDER DESIGNED FOR THIS CAR. *TR
REAR SUBFRAME DIFFERENTIAL MOUNT WAS CRACKED ON 2000 BMW Z3 2.5! *AK
WHILE ON A TRIP I NOTICED AN ODD KNOCKING NOISE FROM THE LEFT REAR OF VEHICLE DURING ACCELLERATION WHILE IN 1ST GEAR. UPON FURTHER INSPECTION I FOUND THE CAR'S SUB FRAME IN THE AREA SUPPORTING THE REAR DIFFERENTIAL MOUNT FRACTURED AND BREAKING AWAY FROM THE VEHICLE. THE NOISE WAS DUE TO THE EMERGENCY BRAKE CABLE THAT HAD POPPED OUT OF ITS RETENTION CLIP, DUE TO THE PHYSICAL MOVEMENT OF THE SUPPORTING MATERIAL AROUND IT. IF THIS HAD NOT HAPPENED, I WOULD NOT HAVE NOTICED THE FAILURE UNTIL THE MOUNT HAD BROKEN AWAY ENTIRELY. SINCE THIS MOUNTS THE REAR AXLE OF THE VEHICLE, IT IS POSSIBLE FOR THIS TO FAIL AT HIGH SPEED CAUSING LOSS OF CONTROL OF THE VEHICLE WITH A HIGH POTENTIAL OF ACCIDENT AND/OR INJURY. I AM HAVING THIS REPAIRED IMMEDIATELY BEFORE DRIVING THE VEHICLE ANY FURTHER. THIS PROBLEM APPEARS TO BE COMMON TO THE "M" VERSION AND MANY OF THE STRAIGHT 6 CYLINDER VERSION OF THIS VEHICLE. MY VERSION IS A 2.8 LITER STANDARD ROADSTER. IT IS LIKELY A STRESS FAILURE DUE TO THE HIGHER TORQUE OF THESE ENGINES. TO CORRECT THIS FAILURE THE DAMAGED MATERIAL NEEDS TO BE REWELDED AND REINFORCED WITH ADDITIONAL SUPPORT.*AK
THE SUB FRAME IS SEPARATING. ALL THE SPOT WELDS ALONG THE EDGES OF THE SUBFRAME ARE COMING APART. THERE IS A CRACK IN THE SUBFRAME DUE TO FLEXING.*AK
EXTREMELY DANGEROUS MANUFACTURER DESIGN OF CONVERTIBLE TOP WINDOW. PUTTING THE TOP DOWN CAUSES DEEP SCRATCHES AND IMPAIRS SIGHT OF WINDOW WHEN THE TOP IS UP. *AK
REAR DIFFERENTIAL SHEET METAL MOUNTING BRACKET TORE LOOSE FROM FLOOR PAN, FOR THE SECOND TIME. FIRST TIME AT 70000 MILES, SECOND TIME AT 90000 MILES. THIN SHEET METAL BRACKETS AND CROSS MEMBER DO NOT APPEAR ADEQUATE. ALSO WELDED SEAMS COMING APART ON FLOOR OF TRUNK ABOVE DIFFERENTIAL. *JB
THE CONSUMER STATES THAT THERE IS A PROBLEM WITH THE VEHICLE BUCKING, RUNNING ROUGH, STABILITY/CONTROL. *SCC
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Data on this page last refreshed .