2009 BMW Z4 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2009 BMW Z4, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Other / unspecified1144.0%
- Engine520.0%
- Seat belts28.0%
- Electrical28.0%
- Airbags14.0%
- Transmission14.0%
- Brakes14.0%
- Fuel system14.0%
- Steering14.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
WHEELS DEVELOPED CRACKS AND AIR WAS LEAKING.
REAR WHEELS ON BMW Z4 CRACKED DURING NORMAL ROAD USAGE. BOTH CRACKED WITHIN A MONTH OF EACH OTHER. THESE ARE 19" WHEELS WITH RUN FLAT TIRES AND 296 WHEEL DESIGN. THESE WHEELS DON'T SEEM TO BE DESIGNED FOR PUBLIC ROAD USAGE BUT ARE ADVERTISED AS SUCH. THEY CANNOT WITHSTAND EVEN MINOR ROAD IMPERFECTIONS. BMW REFUSED TO COVER UNDER WARRANTY AND DOESN'T ACKNOWLEDGE THE WHEEL DESIGN AS DEFECTIVE DESPITE NUMEROUS REPORTS WITH THIS EXACT WHEEL. THEY NO LONGER SELL THE WHEEL ON NEW VEHICLES AND IN FACT EVEN REDESIGNED THE WHEEL IN 2012. *TR
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2009 BMW Z4. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V683000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
TL* THE CONTACT OWNS A 2009 BMW Z4. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V683000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PART NEEDED FOR THE REPAIR WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED MCKENNA BMW AT (562) 219-4570 (LOCATED AT 10900 FIRESTONE BLVD, NORWALK, CA 90650) AND WAS INFORMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
Drivers side seat belt frayed at the point where it comes out of the vehicle when I am seated and buckled in. This is nearly impossible for me to see and I only saw it by chance pulling the seat belt out for some incidental reason. I am unclear how long it had been like this. Otherwise this defect is completely hidden as it disappears into the vehicle when I unbuckle.
THE SEAT BELT IS FRAYING AT THE POINT WHERE IT MOST COMMONLY RESTS AGAINST THE CHASSIS WHILE I AM WEARING IT. IT SEEMS TO BE RUBBING AGAINST THE CAR CAUSING IT TO FRAY. I ONLY NOTICED IT BY CHANCE, AS IT IS NOT A COMMON SPOT TO LOOK AT WHILE SEATED IN THE VEHICLE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
ENGINE UNEXPECTEDLY STALLED AND SHUTDOWN WHILE IN MOVEMENT WITH POTENTIAL TO CAUSE ACCIDENT. VEHICLE CANNOT BE TURNED ON UNTIL FULL STOP IS ACHIEVED AND TRANSMISSION PLACED IN "P." IDLE ENGINE RPM CONTINUES TO VARY DRASTICALLY UP AND DOWN WITH INDICATION A PROBLEM PERSISTS AND IS LIKELY POSE THE SAME SAFETY RISK. I BOUGHT VEHICLE USED ON 2012 AND HAD THE ISSUE SHORTLY AFTER PURCHASE TWICE AT HIGHWAY SPEEDS. DEALERSHIP TOOK MONTHS TO APPARENTLY RESOLVE. I AM BACK AT RISK.
TL* THE CONTACT OWNS A 2009 BMW Z4 CONVERTIBLE. THE CONTACT WAS DRIVING APPROXIMATELY 10-20 MPH WHEN THE VEHICLE STALLED WITHOUT WARNING. HE WAS ABLE TO IMMEDIATELY RESTART THE VEHICLE WITHOUT HESITATION. THE VEHICLE WAS NOT REPAIRED. THE FAILURE WOULD OCCUR INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE COMPUTER WAS REPLACED. THE CONTACT STATED THAT THE VEHICLE WOULD NO LONGER OPERATE FOLLOWING REPAIRS. THE VEHICLE WAS LEFT WITH THE DEALER WHERE THE CONTACT WAS AWAITING FURTHER DIAGNOSIS. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 11,000 AND THE CURRENT MILEAGE WAS 11, 200.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
The airbag sensor in my passenger seat has failed. I have been quoted approximately $2000 to repair this. However researching online I see BMW Service Bulletin SB-[XXX] which indicates this may be a widespread problem? [XXX] I am concerned to take passengers in the vehicle as I do not know if the airbags will deploy, or deploy at the wrong "rate" based on my understanding of how the sensors work. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
MY 2009 BMW Z4 WAS PARKED IN MY DRIVEWAY AT ABOUT A 65 ANGLE TO THE REAR OF MY TOYOTA PICKUP TRUCK. I GOT INTO THE BMW INTENDING MOVE IT INTO THE GARAGE. THE CAR HAS A STANDARD TRANSMISSION AND WAS IN FIRST GEAR WITH THE PARKING BRAKE ON. I DEPRESSED THE CLUTCH PEDAL AND STARTED THE ENGINE. AN INSTANT AFTER THE PARKING BRAKE RELEASED, THE RUBBER CLUTCH PEDAL COVER SLIPPED OFF THE CLUTCH PEDAL TAKING MY FOOT WITH IT. THE BMW SHOT FORWARD. THE FRONT RIGHT FENDER OF THE BMW STRUCK THE LEFT REAR BUMPER OF THE TOYOTA PICKUP TRUCK STALLING THE ENGINE OF THE BMW. THE RESULTING DAMAGE TO THE BMW IS APPROXIMATELY $5000.00 AND THE DAMAGE TO THE TOYOTA PICKUP TRUCK IS APPROXIMATELY $550.00. TUESDAY, SEPTEMBER 29, 2009, I TOOK THE BMW INTO THE AUSTIN BMW DEALER. THE RUBBER PEDAL COVER WAS REATTACHED WITH 'SUPERGLUE' AND I LEFT THE DEALERSHIP. TWO DAYS LATER I TOOK THE BMW TO A BODY SHOP. WHEN I RETURNED HOME, I FELT THE RUBBER CLUTCH PEDAL COVER BEGIN TO 'SLIP' AS I DROVE UP MY DRIVEWAY. THE NEXT DAY I AGAIN TOOK THE CAR INTO THE BMW DEALER. THE RUBBER PEDAL COVER WAS 'LOOSE' BUT DID NOT COME COMPLETELY OFF. I TALKED TO THE SERVICE MANAGER AND SCHEDULED A CONFERENCE WITH THE BMW FACTORY REP AT HIS NEXT VISIT. ON WEDNESDAY, OCTOBER 21ST I RETURNED THE CAR TO THE DEALERSHIP FOR EXAMINATION BY THE FACTORY REP. WHEN THE CAR WAS RETURNED TO ME THE CLUTCH PEDAL HAD BEEN REATTACHED. I WAS TOLD THE FACTORY REP WOULD BE IN CONTACT WITH ME WITHIN TWO WEEKS. 'SCOTT' FROM BMW HEADQUARTERS (NEW JERSEY?) CALLED ME ON NOVEMBER 4, 2009 AND TOLD ME THAT THEY HAD MANUFACTURED 10,000 OF THIS MODEL AND HAD RECEIVED NO OTHER COMPLAINTS OF CLUTCH PEDAL COVERS COMING OFF. I BELIEVE THE RUBBER CLUTCH PEDAL CURRENTLY IN THE VEHICLE IS THE ORIGINAL. THE DEALER PROVIDED ME WITH A CUSTOMER COPY OF THE WORK ORDER ON MY FIRST VISIT. THE DEALER DID NOT PROVIDE ME WITH ANY WRITTEN DOCUMENTATION ON MY SUBSEQUENT TWO VISITS. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
EBRAKE FAILURE. I WENT ON THE Z4 FORUM AND MANY PEOPLE REPORT THIS SAME ISSUE OF THE ELECTRONIC PARKING BRAKE / EMERGENCY BRAKE SIMPLY FAILING TO WORK.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
ENGINE UNEXPECTEDLY STALLED AND SHUTDOWN WHILE IN MOVEMENT WITH POTENTIAL TO CAUSE ACCIDENT. VEHICLE CANNOT BE TURNED ON UNTIL FULL STOP IS ACHIEVED AND TRANSMISSION PLACED IN "P." IDLE ENGINE RPM CONTINUES TO VARY DRASTICALLY UP AND DOWN WITH INDICATION A PROBLEM PERSISTS AND IS LIKELY POSE THE SAME SAFETY RISK. I BOUGHT VEHICLE USED ON 2012 AND HAD THE ISSUE SHORTLY AFTER PURCHASE TWICE AT HIGHWAY SPEEDS. DEALERSHIP TOOK MONTHS TO APPARENTLY RESOLVE. I AM BACK AT RISK.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
MY REAR RIMS HAVE DEVELOPED CRACKS WHILE DRIVING RESULTING IN QUICK LOSS OF TIRE PRESSURE AND IN SOME CASES DESTROYING TIRE. THIS HAS HAPPENED TO BOTH THE LEFT AND RIGHT SIDES, HOWEVER THUS FAR HAS ALWAYS BEEN ISOLATED TO THE REAR (MODEL 296 19") RIMS. IN THE 16 MONTHS I HAVE OWNED THIS VEHICLE, THIS HAS HAPPENED SEVERAL TIMES INCLUDING ON 5/11/2012, 9/9/12, 4/12/13 AND 5/23/13. EACH TIME I HAVE PURCHASED A NEW RIM OR HAD THE EXISTING RIM REPAIRED AT THE DISCRETION OF THE DEALER. IN NONE OF THESE CASES HAS THERE BEEN ANY IMPACT OR DRIVING CONDITION THAT EXPLAINS THE FAILURE. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
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.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .