The Z4 is more sporty and enjoyable than its Z3 predecessor, but the relative lack of agility and the choppy ride make it less fun to drive than most other roadsters. The inline six-cylinder engine is smooth and powerful, sounds invigorating, and returns good fuel economy. The cabin is nicely finished and the one-touch power top is easy to operate.
Alerts
There are 4 recalls on this vehicle. Learn More.

Reliability

Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey, our reliability history charts give you a rundown on how used vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system.

Overall Reliability
The 2003 BMW Z4 has been recalled 4 times by NHTSA. View Recalls

No Detailed Data Available

Consumer Reports obtains its reliability data from a questionnaire that is sent to subscribers. In the questionnaire, we ask subscribers to note any problems with their cars that occurred in the past 12 months. They are asked to identify problems that they considered serious (because of cost, failure, safety, or downtime).

A typical model has about 200 to 400 samples for each model year. For some model years, typically those of older or less popular cars, we do not have a large enough sample size to provide results of statistical confidence.

There are several ways in which a savvy car buyer can still research the quality of a car.

Learn more about Car Brands Reliability
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Recalls
PROVIDED BY
AIR BAGS
May 24 2004
IN THE EVENT OF A CRASH, AIR BAG DEPLOYMENT MAY NOT OCCUR, INCREASING THE RISK OF INJURIES TO THE DRIVER AND/OR FRONT PASSENGER.
Summary:
ON CERTAIN PASSENGER VEHICLES, INCOMPATIBLE ELECTRONIC AIR BAG SYSTEM PROCESSORS MAY HAVE BEEN INSTALLED.
What should you do:
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.
For more information:
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
NHTSA CAMPAIGN ID Number: 04V247000
Potential Number of Units Affected: 51
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Apr 12 2004
IF STALLING WERE TO OCCUR, THE DRIVER WOULD BE UNABLE TO MAINTAIN VEHICLE SPEED OR ACCELERATE, INCREASING THE RISK OF A CRASH.
Summary:
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.
What should you do:
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.
For more information:
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
NHTSA CAMPAIGN ID Number: 04V182000
Potential Number of Units Affected: 13769
TIRES
Jun 09 2003
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.
Summary:
ON CERTAIN VEHICLES EQUIPPED WITH 18" TIRES, IT IS POSSIBLE THAT THE TIRE HAS BEEN DAMAGED DURING THE MOUNTING PROCESS TO THE RIM.
What should you do:
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.
For more information:
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
NHTSA CAMPAIGN ID Number: 03V214000
Potential Number of Units Affected: 180
SEAT BELTS:FRONT:BUCKLE ASSEMBLY
Feb 04 2003
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.
Summary:
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.
What should you do:
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.
For more information:
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
NHTSA CAMPAIGN ID Number: 03V032000
Potential Number of Units Affected: 2635
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