2003 Bmw Z4 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
414 owner complaints analyzed
4 distinct recall campaigns
42,000 mi median reported failure mileage
Scope: 2003 model year. Data snapshot: . 355 complaints include usable failure mileage.
Most common problems
Steering is the most frequently named component, appearing in 326 of 414 complaints (78.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 340 | 82.1% |
| Electrical and battery issues | 11 | 2.7% |
| Engine operation | 9 | 2.2% |
| Braking behavior | 7 | 1.7% |
| Transmission and shifting | 6 | 1.4% |
| Fuel system concerns | 3 | 0.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Steering | 326 |
| Air Bags | 27 |
| Electrical System | 13 |
| Steering:Electric Power Assist System | 10 |
| Engine And Engine Cooling:Engine | 6 |
| Vehicle Speed Control | 6 |
| Engine And Engine Cooling | 5 |
| Fuel System, Gasoline:Delivery:Fuel Pump | 4 |
Steering: 326; Air Bags: 27; Electrical System: 13; Steering:Electric Power Assist System: 10; Engine And Engine Cooling:Engine: 6; Vehicle Speed Control: 6; Engine And Engine Cooling: 5; Fuel System, Gasoline:Delivery:Fuel Pump: 4
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 93 |
| 25,000 to 49,999 | 107 |
| 50,000 to 74,999 | 90 |
| 75,000 to 99,999 | 40 |
| 100,000 to 149,999 | 22 |
| 150,000 and above | 3 |
Under 25,000: 93; 25,000 to 49,999: 107; 50,000 to 74,999: 90; 75,000 to 99,999: 40; 100,000 to 149,999: 22; 150,000 and above: 3
25,000 to 49,999 miles has the most reports with usable mileage (107). 59 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2003 | 13 |
| 2004 | 13 |
| 2005 | 17 |
| 2006 | 8 |
| 2007 | 1 |
| 2008 | 10 |
| 2009 | 16 |
| 2010 | 67 |
| 2011 | 58 |
| 2012 | 38 |
| 2013 | 33 |
| 2014 | 28 |
| 2015 | 22 |
| 2016 | 17 |
| 2017 | 12 |
| 2018 | 22 |
| 2019 | 18 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
2003: 13; 2004: 13; 2005: 17; 2006: 8; 2007: 1; 2008: 10; 2009: 16; 2010: 67; 2011: 58; 2012: 38; 2013: 33; 2014: 28; 2015: 22; 2016: 17; 2017: 12; 2018: 22; 2019: 18; 2020: 3; 2021: 3; 2022: 6; 2023: 4; 2024: 3; 2025: 1; 2026: 1
Pattern summary
Steering leads the component reports. Steering behavior appears in 340 complaint narratives. Electrical and battery issues appears in 11 complaint narratives. Engine operation appears in 9 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10014953 · 2003-04-01 (April 1, 2003)
THE VEHICLE LOST POWER STEERING, THE MECHANIC STATED THE STEERING GEAR BOX NEEDED TO BE REPLACED. *JB
Owner-reported narrative. Look up ODI 10014953 at NHTSA ↗
Owner report 10017170 · 2003-05-01 (May 1, 2003)
THE VEHICLE WAS TURNED OFF TO FILL WITH GAS, WHEN THE VEHICLE WAS TURNED BACK ON, THE STEERING HAD GONE OUT. THE DEALER HAD REPLACED THE STEERING COLUMN GEAR AND REPROGRAMMED THE EPS AND THE LWS WITH THE CIP V 7.0. MR SCC
Owner-reported narrative. Look up ODI 10017170 at NHTSA ↗
Owner report 10093819 · 2004-10-08 (October 8, 2004)
CENTER HIGH MOUNTED STOP LAMP (THIRD BRAKE LIGHT) EASILY CHIPS/BREAKS THAT WOULD ALLOW WATER FROM RAIN OR WASHING TO SIP INTO THE REAR COMPARTMENT OF THE VEHICLE WHERE THE BATTERY AND OTHER ELECTRONIC COMPONENTS ARE LOCATED. WATER COULD SHORT THE ELECTRICAL WIRES AND CAUSE A FIRE, OR STALL THE VEHICLE WHILE IT IS IN MOTION, CAUSING AN ACCIDENT. BROKEN THIRD BRAKE LIGHT INCIDENTS HAVE BEEN REPORTED AND DISCUSSED IN BWM INTERNET FORUMS. *NM
Owner-reported narrative. 100 miles reported. Look up ODI 10093819 at NHTSA ↗
Owner report 10291919 · 2009-11-12 (November 12, 2009)
TL* THE CONTACT OWNS A 2003 BMW Z4. AFTER HE REPLACED THE BATTERY, THE AIR BAG WARNING LIGHT ILLUMINATED ON THE INSTRUMENT CONTROL PANEL. HE TOOK THE VEHICLE TO THE DEALER FOR INSPECTION. THE TECHNICIAN STATED THAT SINCE HIS VEHICLE IDENTIFICATION NUMBER WAS EXCLUDED FROM RECALL #08V384000 ( AIR BAGS: FRONTAL), HE WOULD HAVE TO PAY $1,500.00 FOR THE REPAIR. NO REPAIRS WERE MADE. THE MANUFACTURER WAS NOTIFIED, BUT NO ASSISTANCE WAS PROVIDED. THE CURRENT AND FAILURE MILEAGES WERE 100,000.
Owner-reported narrative. 100,000 miles reported. Look up ODI 10291919 at NHTSA ↗
Owner report 10061950 · 2004-03-11 (March 11, 2004)
MY CAR STALLED ON THE ROAD GOING FIFTY MILES AN HOUR ON UNIVERSITY CITY BLVD. IN CHARLOTTE NORTH CAROLINA. I WAS ALMOST REAR ENDED BY ANOTHER VEHICLE BUT LUCKILY THE DRIVER WAS ABLE TO AVOID ME. I HAVE NEVER BEEN THAT SCARED IN MY LIFE. THIS WAS THE THIRD TIME THE CAR HAD BROKEN DOWN IN NINE MONTHS. THE FIRST TIME BEING MAY 27, 2003. THE SECOND BEING OCTOBER 25, 2003. AND THE THIRD TIME BEING JANUARY 16, 2004 (THIS IS THE TIME IT STALLED GOING 50 MILES ON THE ROAD). THE DEALERSHIP, BMW ROADSIDE ASSISTANCE, AND THE MANAGERS AT HENDRICK IM…
Owner-reported narrative. 18,000 miles reported. Look up ODI 10061950 at NHTSA ↗
Owner report 10031217 · 2003-08-10 (August 10, 2003)
I WAS APPROACHING A TRAFFIC SIGNAL AND I HAD TO STOP. I BEGAN EASING UP ON THE BRAKE PEDAL AS THE CAR WAS COMING TO A STOP. IT WAS THEN THAT I REALIZED I WAS HAVING TO PRESS HARDER ON THE BRAKE PEDAL AS THE CAR WAS NOT MAINTAINING THE SLOW SPEED I WAS EXPECTING. HAVING REACHED THE POINT AT WHICH I HAD TO STOP, I FOUND MYSELF PRESSING QUITE HARD ON THE BRAKE PEDAL. I IMMEDIATELY PUT THE CAR INTO NEUTRAL AND NOTICED THE TACHOMETER READING 3,500 TO 4,000 RPM'S. I BELIEVE IT WAS MY TAPPING ON THE GAS PEDAL THAT GOT THE CAR TO REV AT THE NORMAL R…
Owner-reported narrative. 5,095 miles reported. Look up ODI 10031217 at NHTSA ↗
Owner report 10033253 · 2003-08-21 (August 21, 2003)
DRIVING ON THE INTERSTATE IN MY JUNE 2003 PRODUCTION BMW Z4 3.0I ROADSTER. THE CAR SUDDENLY DIES AT 65 MPH. THE "EML" LIGHT COMES ON, BRAKE LIGHTS COME ON, RPM NEEDLE SURGES, THROTTLE IS UNRESPONSIVE, AND THE FOOT BRAKES ARE FROZEN AND CANNOT BE DEPRESSED. I WAS BARELY ABLE TO SWERVE OFF THE INTERSTATE, ACROSS THE SERVICE ROAD, AND INTO A PARKING LOT WHERE I HAD TO USE THE HAND BRAKES TO GET THE CAR TO STOP COMPLETELY.*AK
Owner-reported narrative. 4,800 miles reported. Look up ODI 10033253 at NHTSA ↗
Owner report 10033452 · 2003-08-25 (August 25, 2003)
2003 BMW Z4 3.0 WITH THE SMG TRANSMISSION (W/ SPORT PACKAGE). THE FOLLOWING INSTANCE HAS HAPPENED TWICE WITHIN THE CURRENT 2,600 MILES ON THE NEW VEHICLE. WHILE IN THE "MANUAL MODE" IN THE SMG TRANSMISSION AND DOWNSHIFTING TO FIRST GEAR (AT A 4-WAY STOP INTERSECTION), WHILE WAITING TO ACCELERATE OUT INTO THE INTERSECTION THE TRANSMISSION "SLIPPED" INTO NETURAL WITHOUT MYSELF (DRIVER) KNOWING, SO WHEN IT WAS TIME TO ACCELERATE THROUGH THE INTERSECTION I WAS VERY SUPRISED TO FIND I DID NOT MOVE BUT HEARD THE ENGINE JUST REV WHILE I STAYED PUT!! …
Owner-reported narrative. 2,300 miles reported. Look up ODI 10033452 at NHTSA ↗
Owner report 10037507 · 2003-09-09 (September 9, 2003)
DRIVING SLOWLY ABOUT 10MPH AND TURNING, TRANSMISSION SHIFTED INTO NEUTRAL BY ITSELF WHILE SHIFTER SHOWS CAR WAS IN DRIVE. TRANSMISSION IS THE BMW SMG (SEQUENTIAL MANUAL GEARBOX). *AK
Owner-reported narrative. 4,800 miles reported. Look up ODI 10037507 at NHTSA ↗
Owner report 10130858 · 2005-08-01 (August 1, 2005)
DT: CONTACT RECEIVED RECALL 04V182000 CONCERNING THE FUEL SYSTEM, GASOLINE; DELIVERY; FUEL PUMP. HE SAID THIS VEHICLE WAS DOING EXACTLY THE SAME THING AS MENTIONED IN THE RECALL. IT WAS A PROBLEM THAT LED TO ENGINE SHUT DOWN. WHILE TRAVELING ON THE HIGHWAY VEHICLE DIED. WAS NOT ABLE TO RESTART THE CAR FOR ABOUT AN HOUR AND A HALF. CONSUMER FELT THAT THIS CAR SHOULD FALL WITHIN THE RECALL, BUT THE DEALER AND THE MANUFACTURER TOLD HIM CAR DID NOT FALL INTO THE RECALL.*AK
Owner-reported narrative. 3,000 miles reported. Look up ODI 10130858 at NHTSA ↗
Owner report 10139278 · 2005-10-11 (October 11, 2005)
WHILE DRIVING WEST ON I-70 NEAR EXIT 218 (ELEV 10,300', WEST OF DENVER) MY 2003 BMW Z4 STALLED. AFTER NUMEROUS RESTARTS, I WAS ABLE TO GET IF OFF THE ROAD AND ONTO THE EXIT. THE CAR WAS TAKEN TO THE HAULED TO THE BMW DEALER IN DENVER. THEY REPORTED TO ME THAT A SCREEN ON THE BOTTOM OF THE FUEL PUMP HAD COLLAPSED, CUTTING OFF THE FUEL SUPPLY. THE REPLACED THE PUMP. AT THAT TIME THE CAR HAD ABOUT 5000 MILES ON IT. IN EARLY AUGUST 2005 I WAS DRIVING THE CAR WEST ON US 6, CROSSING SOLDIER SUMMIT (ELEV. 7400'), WEST OF PRICE, UT. AGAIN THE …
Owner-reported narrative. 5,000 miles reported. Look up ODI 10139278 at NHTSA ↗