1998 BMW Z3 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 1998 BMW Z3, 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
- Interior & seats921.4%
- Electrical614.3%
- Seat belts49.5%
- Suspension49.5%
- Powertrain (other)37.1%
- Airbags37.1%
- Visibility24.8%
- Body & structure24.8%
- Engine24.8%
- Exterior lighting24.8%
- Other / unspecified12.4%
- Steering12.4%
- Fuel system12.4%
- Transmission12.4%
- Heating & air conditioning12.4%
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
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
SEATS MOVE FORWARD AND BACKWARD WHEN VEHICLE ACCELERATES OR DECELERATES, ITS A KNOWN ISSUE OF DEFECTIVE EQUIPMENT THAT SHOULD NOT FALL ON THE CONSUMER FOR REPAIR
TL*THE CONTACT OWNS A 1998 BMW Z3. DURING ACCELERATION AND DECELERATION THE FRONT PASSENGER AND DRIVER SEAT ADJUSTOR RAIL FAILED. AS A CONSEQUENCE, THE SEAT MOVED BACK AND FORTH WHILE THE CONTACT WAS DRIVING. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION, BUT NO REPAIRS WERE MADE. THE FAILURE MILEAGE WAS 50,000. THE CURRENT MILEAGE WAS 65,000. UPDATED 11/09/09 *BF THE CONSUMER STATED BMW KNEW THERE WAS A PROBLEM AND THERFORE, THEY CHANGED MATERIAL USED IN THE ISOLATER PADS. UPDATED 11/09/09
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
SAFETY DEFECT 1998 Z3 BMW. *MR THE AIR BAG LIGHT WAS CONSTANTLY ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHO PERFORMED A DIAGNOSTIC CHECK. THE CHECK INDICATED THAT THE SAFETY RESTRAINT SYSTEM WAS GETTING ELECTRICAL INTERFERENCE IN THE WIRING HARNESS. THE CONSUMER REFUSED REPAIR DUE TO THE COST AND CONTACTED THE MANUFACTURER FOR ASSISTANCE. THE MANUFACTURER REFUSED ANY ASSISTANCE BECAUSE THE VEHICLE WAS OUT OF WARRANTY. THE CONSUMER BELIEVES THAT SINCE THIS IS A SAFETY RELATED PROBLEM THAT IT SHOULD BE REPAIR AT NO CHARGE. *NM
THE VEHICLE AIR BAG LIGHT ILLUMINATED. THE CONSUMER WAS INFORMED BY THE DEALER THAT THE PROBLEM WAS DUE TO ELECTRICAL INTERFERENCE IN THE WIRING HARNESS. THE DEALER WANTED THE CONSUMER TO PAY $400 TO REPAIR THE PROBLEM BUT THE CONSUMER BELIEVES BMW SHOULD BE RESPONSIBLE. THE CONSUMER IS CONCERNED THAT THIS PROBLEM MAY CAUSE THE AIR BAG TO FAIL ON IMPACT. *AK *NLM
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
WHILE BRAKING AND SPEEDING THE DRIVER'S SEAT LURCHED FORWARD/BACKWARDS ON THE SEAT TRACKS. DEALERSHIP WAS NOTIFIED, BUT DID NOT RESOLVE THE PROBLEM. *AK
THE DRIVER WAS STOPPED AT A LIGHT WHEN THE VEHICLE WAS IMPACTED IN THE FRONT AT 45 MPH. NEITHER OF THE FRONTAL AIR BAG DEPLOYED. THE SEAT BELT ALSO FAILED TO PROPERLY RESTRAIN THE DRIVER. *AK *CB *NLM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
The BMW E36 Z3 1996-2002 (I have the 1998 1.9) are prone to having a separation of the Rear subframe from the differential causing the drivetrain to hang off the vehicle and/or rip out of the trunk's weak aluminum sheet subframe. BMW Germany has acknowledged the problem for a few individuals over the past decade and a half and kept it on the low for them to not spread it further. BMW North America fails to acknowledge the design flaw during their manufacturing process in the North American Plant during the late 90s. The Spot Welds' quality is subpar and worrisome as this catastrophic failure of the subframe to driveline structure has various ways of presenting it self which chiefly includes popped spot welds in the truck which comes hand in hand with a cracked differential ear bracket. * To simply understand why this happens: The issue is that the metal of the trunkfloor is too thin and not adequete at holding up to the forces of the differential tugging at it. There have been documented cases of similarly "repaired" Z3's that end up basically pulling out and/or deforming the entire trunkfloor panel. The metal panel the diff crossmember is structurally tied to (and the trunkfloor itself which is above it) is simply too weak for the forces being applied through it. Adding more welds simply changes where the failure occurs - from pulling out spotwelds, to deforming the trunk floor/crossmember itself if there are too many welds for them to be able to be pulled out. There are a few kits going around that other owners have addressed to their vehicles for a few thousand dollars which includes welding and a re-fabrication of the trunk floor's structure to the subframe/chasis. It has two "caps" that sit on the framerails at either side and a "crossmember" piece which is a strong piece of metal that spans between the two frame rails and sits on top of the "caps". When installed, the differential ends up tugging at the crossmember, which then distributes the forces.....
I HAVE A 1998 Z3 M ROADSTER AND THE TRUNK WELDS HOLDING THE SUBFRAME IS FAILING. THIS IS A COMMONLY DOCUMENTED ISSUES. BMW DEALERS ACKNOWLEDGE THE ISSUE BUT BMW NORTH AMERICA WILL NOT FIX IT. THIS IS A WELDING/MANUFACTURING DEFECT THAT CAN LEAD TO THE DIFFERENTIAL AND SUSPENSION COMPONENTS IN THE REAR TO COMPLETELY SEPARATE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
The BMW E36 Z3 1996-2002 (I have the 1998 1.9) are prone to having a separation of the Rear subframe from the differential causing the drivetrain to hang off the vehicle and/or rip out of the trunk's weak aluminum sheet subframe. BMW Germany has acknowledged the problem for a few individuals over the past decade and a half and kept it on the low for them to not spread it further. BMW North America fails to acknowledge the design flaw during their manufacturing process in the North American Plant during the late 90s. The Spot Welds' quality is subpar and worrisome as this catastrophic failure of the subframe to driveline structure has various ways of presenting it self which chiefly includes popped spot welds in the truck which comes hand in hand with a cracked differential ear bracket. * To simply understand why this happens: The issue is that the metal of the trunkfloor is too thin and not adequete at holding up to the forces of the differential tugging at it. There have been documented cases of similarly "repaired" Z3's that end up basically pulling out and/or deforming the entire trunkfloor panel. The metal panel the diff crossmember is structurally tied to (and the trunkfloor itself which is above it) is simply too weak for the forces being applied through it. Adding more welds simply changes where the failure occurs - from pulling out spotwelds, to deforming the trunk floor/crossmember itself if there are too many welds for them to be able to be pulled out. There are a few kits going around that other owners have addressed to their vehicles for a few thousand dollars which includes welding and a re-fabrication of the trunk floor's structure to the subframe/chasis. It has two "caps" that sit on the framerails at either side and a "crossmember" piece which is a strong piece of metal that spans between the two frame rails and sits on top of the "caps". When installed, the differential ends up tugging at the crossmember, which then distributes the forces.....
I HAVE A 1998 Z3 M ROADSTER AND THE TRUNK WELDS HOLDING THE SUBFRAME IS FAILING. THIS IS A COMMONLY DOCUMENTED ISSUES. BMW DEALERS ACKNOWLEDGE THE ISSUE BUT BMW NORTH AMERICA WILL NOT FIX IT. THIS IS A WELDING/MANUFACTURING DEFECT THAT CAN LEAD TO THE DIFFERENTIAL AND SUSPENSION COMPONENTS IN THE REAR TO COMPLETELY SEPARATE.
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
WHILE DRIVING AIR BAG WARNING LIGHT WOULD COME ON. CONSUMER HAS CONTACTED THE DEALER.*AK
THE DRIVER WAS STOPPED AT A LIGHT WHEN THE VEHICLE WAS IMPACTED IN THE FRONT AT 45 MPH. NEITHER OF THE FRONTAL AIR BAG DEPLOYED. THE SEAT BELT ALSO FAILED TO PROPERLY RESTRAIN THE DRIVER. *AK *CB *NLM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
THE PLASTIC REAR WINDOW IN THE CONVERTIBLE TOP HAS A DESIGN FLAW. WHEN THE CONVERTIBLE TOP IS LOWERED AND THEN RAISED AGAIN (THE INTENDED NORMAL OPERATION OF THE CONVERTIBLE TOP), IT CAUSES SEVERE CREASING OF THE REAR WINDOW. THIS RESULTS IN THE REAR VIEW OUT THE WINDOW BEING SIGNIFICANTLY DISTORTED AND IMPAIRED, WHICH I THINK IS A SAFETY HAZARD. I HAVE CONTACTED BOTH THE DEALER AND BMW ABOUT THIS. THEY HAVE TOLD ME THAT "THEY ALL DO THIS" AND THAT THERE IS NOTHING THEY CAN DO ABOUT IT. THERE IS NOTHING THE OWNER CAN DO TO REMOVE THE CREASES. THE ONLY RESPONSE THE DEALER HAS PFFERED IS TO HEAT-TREAT THE WINDOW AND MELT AWAY THE CREASES. HOWEVER, THE NEXT TIME THE TOP IS LOWERED AND THEN RAISED AGAIN, THE WINDOW HAS THE SAME DEEP CREASES. THIS CONCERNS ME, BECAUSE THE DISTORTED REAR VIEW IS DISTRACTING AND A SAFETY HAZARD BECAUSE ONE CANNOT SEE CLEARLY TO THE REAR OF THE CAR.
REARVIEW MIRROR CREATES HUGE BLIND SPOT AND IS A POTENTIAL HAZARD.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
I HAVE A 1998 Z3 M ROADSTER AND THE TRUNK WELDS HOLDING THE SUBFRAME IS FAILING. THIS IS A COMMONLY DOCUMENTED ISSUES. BMW DEALERS ACKNOWLEDGE THE ISSUE BUT BMW NORTH AMERICA WILL NOT FIX IT. THIS IS A WELDING/MANUFACTURING DEFECT THAT CAN LEAD TO THE DIFFERENTIAL AND SUSPENSION COMPONENTS IN THE REAR TO COMPLETELY SEPARATE.
BMW Z3 IS A PIECE OF CRAP. DEALER NOW THINKS THAT THERE IS UNDERLYING PROBLEM WITH VEHICLE. 3 CD PLAYERS, 2 IGNITION SYSTEMS, 1 FUEL SENSOR, 1 ENGINE THAT WOULDN'T START DUE TO SOMETHING STUCK OPEN AND JUST GENERAL POOR QUALITY. I DO NOT RECOMMEND THIS VEHICLE FOR ANYONE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
AFTER APPROXIMATELY 15 MINUTES OF DRIVING A FIRE ERUPTED FROM UNDER THE HOOD, NO INDICATOR LIGHTS DISPLAYED AND NO ODOR OF RAW FUEL WAS APPARENT. POWER TO THE VEHICLE ULTIMATLEY FAILED AS WELL AS THE BRAKES. WIFE ABLE TO STOP THE VEHICLE USING THE EMERGENCY BRAKES. WITHIN MINUTES THE MOTOR AND ACCOUTERMENTS WERE CHARRED TO A CRISP. THE VEHICLE WAS TOTALED.
BMW Z3 IS A PIECE OF CRAP. DEALER NOW THINKS THAT THERE IS UNDERLYING PROBLEM WITH VEHICLE. 3 CD PLAYERS, 2 IGNITION SYSTEMS, 1 FUEL SENSOR, 1 ENGINE THAT WOULDN'T START DUE TO SOMETHING STUCK OPEN AND JUST GENERAL POOR QUALITY. I DO NOT RECOMMEND THIS VEHICLE FOR ANYONE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
I HAVE HAD THIS VEHICLE SERVICED 4 TIMES ... THEY ARE UNABLE TO FIX THE PROBLEM, I LOSE ALL HEAD LIGHTS AND INSTRUMENT CLUSTER WHEN THIS HAPPENS .. INCLUDING MY TURN SIGNALS..
PASSENGER SEAT BELT FAILED. YH
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
OWNERS MANUAL STATES WARNING TRIANGLE AND FIRST AID KIT ARE LOCATED ON VEHICLE, THIS IS NOT SO, ONLY OFFERED TO EUROPEAN VEHICLES.
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
WHILE MAKING A LEFT TURN THE STEERING LOCKED UP, CAUSING VEHICLE TO SPIN OUT OF CONTROL, RESULTING IN A COLLISION. MANUFACTURER HAS INSPECTED THE VEHICLE . THE VEHICLE IS BEING REPAIRED. *AK
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
BMW Z3 IS A PIECE OF CRAP. DEALER NOW THINKS THAT THERE IS UNDERLYING PROBLEM WITH VEHICLE. 3 CD PLAYERS, 2 IGNITION SYSTEMS, 1 FUEL SENSOR, 1 ENGINE THAT WOULDN'T START DUE TO SOMETHING STUCK OPEN AND JUST GENERAL POOR QUALITY. I DO NOT RECOMMEND THIS VEHICLE FOR ANYONE.
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
TRANSMISSION POPS OR JUMPS OUT OF FIRST GEAR UPON TAKEOFF. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Heating & air conditioning
Reports naming the heating, ventilation and air-conditioning system.
From owner reports, verbatim
REAR STABILIZER BAR REPAIRED SEVERAL TIMES WITH THREE REPLACEMENTS. MJS
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 .