Air bags
Risk. IN THE EVENT OF A CRASH, AIR BAG DEPLOYMENT MAY NOT OCCUR, INCREASING THE RISK OF INJURIES TO THE DRIVER AND/OR FRONT PASSENGER.
NHTSA has logged 414 owner complaints about the 2003 BMW Z4, most often about the steering. It is covered by 4 safety recalls.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through June 14, 2026. Updated daily. Photo: MercurySable99, CC BY-SA 4.0.
414 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Steering | 342 | 2 |
| Air bags | 31 | 1 |
| Electrical system | 13 | 1 |
| Engine and engine cooling | 11 | 0 |
| Structure | 8 | 0 |
| Power train | 7 | 0 |
| Vehicle speed control | 6 | 2 |
| Fuel system, gasoline | 5 | 0 |
| Seat belts | 4 | 1 |
| 12 other systems | 23 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. IN THE EVENT OF A CRASH, AIR BAG DEPLOYMENT MAY NOT OCCUR, INCREASING THE RISK OF INJURIES TO THE DRIVER AND/OR FRONT PASSENGER.
Risk. IF STALLING WERE TO OCCUR, THE DRIVER WOULD BE UNABLE TO MAINTAIN VEHICLE SPEED OR ACCELERATE, INCREASING THE RISK OF A CRASH.
Risk. CONSEQUENTLY, A LOSS OF TIRE PRESSURE, OR A TIRE FAILURE, COULD OCCUR.
Risk. IF THE CONNECTION DETACHES, THE PROTECTION PROVIDED BY THE SAFETY BELT IS LIKELY TO BE IMPAIRED, AND SERIOUS INJURIES TO THE DRIVER AND/OR FRONT PASSENGER…
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with BMW.
42kmiles, median
Based on the odometer reading in 300 steering complaints. 95% were reported before 100,000 miles.
Dollar amounts owners wrote in their complaints when describing a repair or a quote. These are not price estimates; a system is shown only when at least 8 owners mentioned a cost.
$3,300median
If a problem is covered by a recall, the dealer fixes it for free. Some manufacturers also reimburse owners who paid for a repair before a recall was announced.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Z4 median. How we score
2003 BMW Z4 Convertible w/SAB in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.


Federal investigations that included the 2003 BMW Z4, and the recalls they led to.
Recent steering complaints filed with NHTSA, shortened. Personal details are removed.
This vehicle has a "sticky steering" issue in warm or hot weather, the steering sticks and requires a lot of effort to get the wheel to turn. If I am doing any speeds over 40 mph and keep adjusting the steering, I have almost wrecked the car on more than one occasion. The problem is the electric…
Steering is binding up, very hard to steer and control. Car starts out running fine after parked in hot weather and restarted it is almost uncontrollable. Looking for corrective action. Only 39,920 miles on car. Would like to use it or sell it, can do neither in current condition. Steering column…
When outside temp is 80degrees or higher it becomes difficult to maintain the vehicle in the correct driving lane due to a stickyness in the steering wheel. I will not allow anyone to drive the vehicle when the temp is over 80 degrees... sucks to have a convertable that you can't drive in warm…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.