Open safety recalls, the components owners report failing most often, crash-test results and running costs for the 2003 BMW Z4, assembled from NHTSA and EPA records.
Everything on this page applies to the model as a whole. Run its VIN to decode that exact car, its engine, trim, assembly plant and factory equipment, alongside these records.
Open a VIN recordRecalls and complaints are filed against a specific model year, so figures differ from one year to the next even within a single generation. See every BMW Z4 year.
No EPA fuel-economy match for this model. Naming may differ, or it predates EPA records.
NHTSA lists 4 recalls for this make, model and year. Recalls apply to the model, so some may already be fixed on this specific car. A dealer can confirm from the VIN.
Issue: ON CERTAIN PASSENGER VEHICLES, THE CONNECTION OF THE SAFETY BELT BUCKLE TO THE STEEL ROPE OF THE TENSIONER DOES NOT MEET BMW SPECIFICATIONS. IN SEVERE FRONTAL CRASHES, THIS CONNECTION CAN DETACH.
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 COULD OCCUR THAT MIGHT OTHERWISE BE MITIGATED.
Remedy: DEALERS WILL INSPECT BOTH FRONT SAFETY BELT TENSIONER AND BUCKLE ASSEMBLIES, AND IF NECESSARY, REPLACE THESE PARTS. OWNER NOTIFICATION BEGAN MARCH 19, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT BMW AT 1-800-831-1117.
Campaign 03V032000
Issue: ON CERTAIN PASSENGER VEHICLES, UNDER CERTAIN ENVIRONMENTAL CONDITIONS, A VAPOR LOCK IN THE FUEL PUMP COULD OCCUR CAUSING THE ENGINE TO STALL. IF THIS WERE TO HAPPEN, THE ENGINE WOULD NOT BE ABLE TO BE RESTARTED FOR APPROXIMATELY 15 TO 20 MINUTES.
Risk: IF STALLING WERE TO OCCUR, THE DRIVER WOULD BE UNABLE TO MAINTAIN VEHICLE SPEED OR ACCELERATE, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSTALL A RESISTOR IN THE ELECTRICAL LINE POWERING THE FUEL PUMP IN ORDER TO PREVENT AN OCCURRENCE OF VAPOR LOCK. THE RECALL BEGAN MAY 11, 2004. OWNERS SHOULD CONTACT BMW AT 1-800-831-1117.
Campaign 04V182000
Issue: ON CERTAIN VEHICLES EQUIPPED WITH 18" TIRES, IT IS POSSIBLE THAT THE TIRE HAS BEEN DAMAGED DURING THE MOUNTING PROCESS TO THE RIM.
Risk: CONSEQUENTLY, A LOSS OF TIRE PRESSURE, OR A TIRE FAILURE, COULD OCCUR. DEPENDING ON TRAFFIC CONDITIONS AND THE DRIVER'S REACTIONS, THIS COULD LEAD TO A CRASH.
Remedy: DEALERS WILL UNSEAT THE TIRE FROM ITS RIM, INSPECT FOR ANY DAMAGE, AND THEN RESEAT THE TIRE TO ITS RIM. IF INSPECTION REVEALS THAT A FRONT TIRE HAS INCURRED DAMAGE DURING THE MOUNTING PROCESS, IT WILL BE REPLACED. OWNER NOTIFICATION BEGAN JULY 14, 2003. OWNERS SHOULD CONTACT BMW AT 1-800-831-1117.
Campaign 03V214000
Issue: ON CERTAIN PASSENGER VEHICLES, INCOMPATIBLE ELECTRONIC AIR BAG SYSTEM PROCESSORS MAY HAVE BEEN INSTALLED.
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.
Remedy: DEALERS WILL INSPECT AND, IF NECESSARY, REPLACE THE AIR BAG SYSTEM PROCESSORS. THE RECALL BEGAN JUNE 11, 2004. OWNERS SHOULD CONTACT BMW AT 1-800-831-1117.
Campaign 04V247000

NHTSA frontal crash test
1 open NHTSA investigation into this model. Investigations come before recalls, so these are potential defects not yet covered by one.
Rated configuration: 2003 BMW Z4 Convertible w/SAB
The parts named most often across 414 owner complaints filed with NHTSA for this make, model and year.
2 crashes
1 crash
Complaints are self-reported and skew toward problems people find alarming, so read this as where to look rather than as a defect rate.
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 on the early year models of the BMW Z4. Mine is a 2003, the first year the car was on the market.
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 needed or components
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 weather!
My girlfriend, [XXX] , purchased a used 2003 BMW z4 2.5i. It is pristine with 47K original miles. Always maintained, garaged and never driven in foul weather. I, [XXX] , drove it home for her and noticed the steering to be "sticky". This showed on the highway traveling at 65 MPH. It was very unsettling to feel the car want to track in a direction that i could not control. I used "more force" to pull the steering wheel to get tracking correctly and stay in my travel lane. Lucking I did not overcorrect and lose control or cause and accident. Once it happened it continued to happen the balance of the drive on the highway and back roads. I've owned and driven many different makes and models of vehicles from Dodge, Renault, Toyota, GMC, Chrysler, Volvo, Geo, etc. and never has "steering" been an issue. Once we got home I looked up "sticky steering" issue for the 2003 Z4 and this is a known issue. Driving this BMW was unsettling and unsafe. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Dealer sold me a car and the next day the car no turn on engine and have a full leaking under
The contact owns a 2003 BMW Z4. The contact stated that the coolant warning light illuminated. The contact then stated that she noticed smoke underneath the hood of the vehicle. The contact stated that upon inspecting the vehicle, she noticed a leak on the ground located near the rear passenger’s side tire. Additionally, the contact then stated that while operating the convertible drop top, she heard an abnormal sound in the motor. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 64,000.
Upon starting the car, power steering does not work making car unmanueverable.
The steering in this BMW Z4 gets "sticky" in warm or hot weather. It drives fine in cold weather. The steering has to be constantly corrected as it pulls to the left. It will not track in a straight line and needs constant corrections from side to side to compensate for the problem. If you do not pay close attention and correct the steering input, you will go off the road. On a warmer day after driving for a while I suddenly experienced a unexpected binding of the steering and almost ended up steering into oncoming traffic. This car is not safe to drive. The 2003 model has electric power steering. There are no codes or warning lights. I took the car to the local mechanic and he was easily able to reproduce the issue when he drove it less than 1 mile. This issue not only puts me at risk but others because of the constant correction of the steering to keep a straight. If you drive this car in warm or hot weather distances more than 20 miles then shut if off, then attempt to restart there is no steering at all. Please view the 2 websites listed below from BMW owners. https://automotivesblog.com/e85-e86-bmw-z4-steering-problems-how-to-fix/ https://www.carproblemzoo.com/bmw/z4/steering-problems.php One website had almost 700 complaints with the steering. I dare not let my kids behind the wheel of this car. It is not a question of "if" someone gets killed, but "when." BMW North America would only say there are no recalls. When I asked if there have been issues reported, they declined to give me that information. Please help. It would be interesting to know how many accidents were listed with the steering being the cause of the MVA. I would gladly allow someone with the NHTSA drive this car in warm weather. Then you would see how dangerous the steering is in these vehicles.
Sticky steering steering wheel hard to turn and stops intermittently when outside temperature is hot
DRIVERS DOOR WOULD NOT OPEN. Couldn't get out of the car. Had to get assistance to get out of car.. Had car towed to BMW dealership.. The spent hours trying to get door open. They had to go down through the convertible top to remove the drivers seat in order to get panel off to remove parts to get door to open. This is major safety hazard which should be addressed. See what was repaired below.. MECH MECHANICAL LABOR 22642 COXW 1320.00 1320.00 1 51-21-7-202-143 SYSTEM LATCH, LEFT:512011 241.92 241.92 241.92 1 51-21-7-197-313 CARRIER, OUTSIDE DOOR HANDLE:H51210 202.32 202.32 202.32 12 51-41-8-224-768 CLIP WITH WASHER, NATUR:889520 1.08 1.08 12.96 1 51-48-7-016-655 SOUND INSULATION, DOOR LEFT:H51480 57.68 57.68 57.68 36204 LEFT DOOR LOCK ACTUATOR & OUTSIDE DOOR HANDLE CARRIER FAULTY. 5.50 VERIFY COMPLAINT,FOUND DOOR LOCK ACTUATOR FAULTY & OUTSIDE DOOR HANDLE CARRIER FAULTY,TIME SPENT TO UNLOCK DOOR, R&R DOOR LOCK ACTUATOR & OUTSIDE DOOR HANDLE CARRIER.FUNCTION Total cost of repair - 1877.36
STICKY STEERING AFTER CAR WARMS UP. STEERS LIKE A BOAT. DANGEROUS AT HIGHWAY SPEEDS OR WINDING ROAD.
The contact owns a 2003 BMW Z4. The contact stated while driving at various speeds in hot weather, the steering wheel became difficult to turn and would also jerk the vehicle into the next lane. The contact stated no warning light was illuminated. The contact was able to drive to the residence. The contact took the vehicle to the local dealer, where it was diagnosed with needing the battery to be replaced. The dealer replaced the battery however, the failure recurred. The manufacturer had been informed of the failure. The failure mileage was approximately 24,000.
Showing 12 of 414 complaints.