Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
10–25K
325–50K
350–75K
775–100K
10100–150K
1150K+
25 reports with mileage · 14 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Structure. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Air Bags. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports2 injury reports
What owners actually said
39 reports
Mileage unknown · Mar 8, 2024
Air Bags
Hello, NHTSA released a recall warning for BMWs made from 2000 to 2006, regarding Takata airbags. "The risk to vehicle occupants is dire," it said. My 1999 BMW Z3 was made one year before this, and is not included in the recall. I have been trying to determine whether my '99 BMW has Takata airbags as well, thus far with no…
Read full complaint
Hello, NHTSA released a recall warning for BMWs made from 2000 to 2006, regarding Takata airbags. "The risk to vehicle occupants is dire," it said. My 1999 BMW Z3 was made one year before this, and is not included in the recall. I have been trying to determine whether my '99 BMW has Takata airbags as well, thus far with no success. As of today, BMW will only tell me that there are no outstanding recalls for my car - they have not been willing to tell me what type of airbags they originally installed in it. Do your records indicate what type of airbags I have?
NHTSA ODI #11576189
103,000 miles · Dec 13, 2019
Air Bags
AIR BAG LIGHT STAYS LIT
NHTSA ODI #11288865
53,000 miles · Dec 10, 2019
Air BagsUnknown Or Other
THE PASSENGER AIR BAG LIGHT IS ON AND STAYS ON. WHETHER CAR IS STATIONARY OR IN MOTION.
NHTSA ODI #11288157
88,000 miles · Oct 6, 2017
Power TrainStructureSuspension
VERY WELL KNOWN FAILURE, JUST SEARCH FOR "BMW Z3 SUBFRAME FAILURE". IT IS A DESIGN FLAW BY BMW THAT AFFECTS A LOT OF Z3'S THROUGH ALL MODEL YEARS. MINE STARTED TO POP ONE WELD AT 88K MILES. IT CAN CAUSE THE REAR ALIGNMENT TO BE OFF, IN WORST CASE THE TRUNK FLOOR IS TORN OUT AND THE DIFFERENTIAL FALLS TO THE GROUND. CLUNKING FROM…
Read full complaint
VERY WELL KNOWN FAILURE, JUST SEARCH FOR "BMW Z3 SUBFRAME FAILURE". IT IS A DESIGN FLAW BY BMW THAT AFFECTS A LOT OF Z3'S THROUGH ALL MODEL YEARS. MINE STARTED TO POP ONE WELD AT 88K MILES. IT CAN CAUSE THE REAR ALIGNMENT TO BE OFF, IN WORST CASE THE TRUNK FLOOR IS TORN OUT AND THE DIFFERENTIAL FALLS TO THE GROUND. CLUNKING FROM THE BACK WHILE SHIFTING IN THE FIRST TWO GEARS IS ONE INDICATOR THIS DAMAGE IS NOT FAR AWAY. THIS IS ONE FORUM THREAD THAT DESCRIBES THE ISSUE WELL: HTTPS://WWW.BIMMERFORUMS.COM/FORUM/SHOWTHREAD.PHP?1979601-SUBFRAME-TRUNK-FLOOR-DIFFERENTIAL-MOUNT-FAILURE
NHTSA ODI #11032127
140,000 miles · Jun 17, 2016
Power Train
TL* THE CONTACT OWNS A 1999 BMW Z3. AFTER THE VEHICLE WAS STARTED AND PLACED INTO REVERSE, A CLANKING SOUND EMERGED FROM THE REAR END WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 99V272000 (POWER TRAIN). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILE…
Read full complaint
TL* THE CONTACT OWNS A 1999 BMW Z3. AFTER THE VEHICLE WAS STARTED AND PLACED INTO REVERSE, A CLANKING SOUND EMERGED FROM THE REAR END WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE VIN WAS EXCLUDED FROM NHTSA CAMPAIGN NUMBER: 99V272000 (POWER TRAIN). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 140,000.
NHTSA ODI #10874771
101,000 miles · Jan 20, 2015
Power TrainSuspension
THE REAR DIFFERENTIAL HOUSING IS SEPARATING FROM THE SUBFRAME OF THE CAR, UNDER OR NEAR THE TRUNK AREA. THIS IS A WELL DOCUMENTED ISSUE WITH THE Z3 SERIES OF VEHICLES. THIS COULD BE A SAFETY HAZARD WHILE OPERATING THE VEHICLE IF THE READ DIFFERENTIAL SEPARATES FROM THE SUBFRAME, AND COULD CAUSE A HAZARD TO OTHER MOTORIST. …
Read full complaint
THE REAR DIFFERENTIAL HOUSING IS SEPARATING FROM THE SUBFRAME OF THE CAR, UNDER OR NEAR THE TRUNK AREA. THIS IS A WELL DOCUMENTED ISSUE WITH THE Z3 SERIES OF VEHICLES. THIS COULD BE A SAFETY HAZARD WHILE OPERATING THE VEHICLE IF THE READ DIFFERENTIAL SEPARATES FROM THE SUBFRAME, AND COULD CAUSE A HAZARD TO OTHER MOTORIST. THIS APPEARS TO BE DUE TO A DESIGN FLAW. THE FRAME WAS DESIGNED FOR A 1.9L ENGINE, AND BMW DID NOT REDESIGN THE SUBFRAME TO ALLOW FOR THE LARGER ENGINES IT LATER SOLD IN THE Z3 SERIES OF CARS. BMW ALSO HAD THIS SAME ISSUE ON 3XX SERIES OF VEHICLES, AND AGREED TO REPAIR THOSE CARS DUE TO A CLASS ACTION LAW SUITE SETTLEMENT. BMW SHOULD BE HELD ACCOUNTABLE FOR THE DESIGN ISSUE, AND ACKNOWLEDGE THE SAFETY HAZARD. *TR
NHTSA ODI #10676809
Mileage unknown · Aug 15, 2014
Seats
DRIVER SEAT BECAME LOOSE AND WOULD SLIDE FORWARD WHEN BRAKES WERE APPLIED AND BACKWARD ON ACCELERATION. THE MOVEMENT WAS ABRUPT ENOUGH TO BE DISCONCERTING, ESPECIALLY IN AN EMERGENCY MANEUVER. BMW DEALERSHIP ADVISED IT WAS EXPENSIVE TO REPAIR AND NOT DANGEROUS BECAUSE THE SEAT WAS NOT AT RISK OF FULLY DETACHING. I HAVE LIVED …
Read full complaint
DRIVER SEAT BECAME LOOSE AND WOULD SLIDE FORWARD WHEN BRAKES WERE APPLIED AND BACKWARD ON ACCELERATION. THE MOVEMENT WAS ABRUPT ENOUGH TO BE DISCONCERTING, ESPECIALLY IN AN EMERGENCY MANEUVER. BMW DEALERSHIP ADVISED IT WAS EXPENSIVE TO REPAIR AND NOT DANGEROUS BECAUSE THE SEAT WAS NOT AT RISK OF FULLY DETACHING. I HAVE LIVED WITH IT, BUT IT IS A POTENTIAL CAUSE OF ACCIDENTS AND IT FEELS UNSAFE - AS IF THE SEAT MIGHT COME LOOSE. IT IS VERY DISTRACTING TO ANY DRIVER WHO IS NOT ACCUSTOMED TO IT AND EVEN TO ME - A LIKELY CAUSE OF DRIVER ERROR OR LOSS OF CONTROL DURING ABRUPT MANEUVERS. RECENTLY AS I LOOKED ON THE INTERNET FOR SOLUTIONS I FOUND THAT THIS IS AN EXTREMELY COMMON PROBLEM WITH 1999 M ROADSTER VERSION OF THE Z3. I THINK IT IS SUFFICIENT TO MERIT RECALL, BUT THAT IS WHAT YOU FOLKS DO FOR A LIVING... I HOPE YOU WILL LOOK INTO IT CAREFULLY. PS: THE DATE THAT I ENTERED IS A VERY ROUGH ESTIMATE. I DO NOT RECALL PRECISELY WHEN THE PROBLEM FIRST OCCURRED. THANK YOU *TR
NHTSA ODI #10622505
88,000 miles · Apr 7, 2014
Engine
MY 1999 BMW ROADSTER ENGINE BEGAN TORQUING FROM IDLE TO VERY FAST WITHOUT ANY WARNING. I HAVE TAKEN IT TO MECHANICS AND THEY DO NOT KNOW WHAT WOULD CAUSE THIS. IT HAS HAPPENED MULTIPLE TIMES SINCE THEN. IT WILL STOP THIS WHEN I SHUT OFF ENGINE AND TURN IT BACK ON. I FEAR THIS COULD CAUSE A SERIOUS ACCIDENT. PLEASE ADVISE ON WHAT…
Read full complaint
MY 1999 BMW ROADSTER ENGINE BEGAN TORQUING FROM IDLE TO VERY FAST WITHOUT ANY WARNING. I HAVE TAKEN IT TO MECHANICS AND THEY DO NOT KNOW WHAT WOULD CAUSE THIS. IT HAS HAPPENED MULTIPLE TIMES SINCE THEN. IT WILL STOP THIS WHEN I SHUT OFF ENGINE AND TURN IT BACK ON. I FEAR THIS COULD CAUSE A SERIOUS ACCIDENT. PLEASE ADVISE ON WHAT TO DO. *TR
NHTSA ODI #10578088
117,860 miles · Jan 9, 2013
Air BagsInjury
DRIVER SIDE (DOOR) AIRBAG DEPLOYED WHILE DRIVING ON HIGHWAY. IMPACT CAUSED ME TO SWERVE INTO ONCOMING TRAFFIC LANES. *TR
NHTSA ODI #10491929
100,000 miles · Sep 27, 2012
Structure
I HAVE SUBFRAME DAMAGE, IN THE TRUNK IT'S MOST VISIBLE WITH THE CARPET OUT, I CAN SEE THE SPOT WELDS HAVE POPPED, CRACKED, BROKE FREE, WHATEVER. THUS CAN CAUSE A MASSIVE RISK TO AS IF ANYMORE POP THE DIFFERENTIAL COULD POSSIBLE TEAR NEXT THE BRACKET THAT HOLDS IT UP. *TR
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE REAR AXLE DIFFERENTIAL MAY CONTAIN RING GEAR BOLTS THAT WERE INCORRECTLY TORQUED DURING ASSEMBLY. THE BOLT OR BOLTS COULD LOOSEN LEADING TO NOISE FROM THE DIFFERENTIAL.
Consequence & remedy
Consequence: THE BOLT OR BOLTS COULD LOOSEN LEADING TO NOISE FROM THE DIFFERENTIAL AND IF A BOLT WERE TO COMPLETELY WORK LOOSE FROM ITS MOUNT, LOCKUP OF THE REAR AXLE COULD OCCUR.
Remedy: DEALERS WILL INSPECT THE VEHICLE'S DIFFERENTIAL AND IF INVOLVED, WILL REPLACE IT.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE NUT THAT SECURES THE MAIN POSITIVE CABLE TO THE POSITIVE BATTERY TERMINAL CLAMP WAS NOT TIGHTENED PROPERLY, ALLOWING THE CABLE TO LOOSEN OVER TIME. IF THIS OCCURRED, THE CABLE COULD ULTIMATELY LOOSEN TO THE POINT WHERE ELECTRICAL CONTINUITY COULD BE INTERRUPTED.
Consequence & remedy
Consequence: IF THIS OCCURED WHILE THE ENGINE WAS RUNNING, THE ENGINE COULD STOP. ALSO, IF THE VEHICLE WERE BEING OPERATED AT NIGHT, THE LIGHTING SYSTEM COULD SHUT OFF, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL TIGHTEN THE NUT TO THE PROPER SPECIFICATIONS.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
1999 BMW Z3 Problems, Complaints & Recalls | Skip That Year