2003 BMW Z4 Other or unknown Problems
- Complaints
- 5about this part
- Share
- 1%of 414 total for the year
- Median mileage
- 71,565miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the other or unknown of the 2003 BMW Z4, 1% of the 414 complaints for this model year. Where a mileage was given, the median is 71,565 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The central locking system does not work correctly. It operates the glove box, passenger and driver doors as well as gas cap door. It does not respond properly to fob or by key. At times all locks are frozen to the point where you can not open to get in or gas. Right now passenger door has been locked for 30+ days. Cannot open at all. Took to a mechanic who ordered a new actuater from Bmw dealer, first one did not work. Second one installed and the problem is not solved. ($240.00). Mechanic tells me that something is burning and I must take to dealership. …”
NHTSA complaint #10733026, filed 2015-07, 71,565 miles“Convertible top motor is placed in a bad location by the manufacturer causing roof pump motor to cease and stop working. This is a safety issue because the top should be able to be put up due to inclement weather. My convertible roof won't go up or down right now. Hundreds of complaints online and Bmw wants to charge over $2,000 to perform repairs gauging customers for their faulty designs.”
NHTSA complaint #11256560, filed 2019-09, 145,500 miles“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.. …”
NHTSA complaint #11496799, filed 2022-12“The contact owns a 2003 Bmw Z4. The contact stated that when driving at speeds above 60 MPH or when driving in high temperatures above 80 degrees the power steering would fail, making it difficult to steer. The dealer did not offer any assistance. The manufacturer was aware of the failure. No repairs were performed. The approximate failure mileage was 10,000. The current mileage was 43,000. Updated 8/29/11 the consumer also stated the traction control light would illuminate. Updated 09/26/11”
NHTSA complaint #10410551, filed 2011-07, 10,000 milesOther or unknown: other model years
Other parts of the 2003 BMW Z4
342 complaintsAir bags
31 complaintsElectrical system
13 complaintsEngine cooling
11 complaintsBody and structure
8 complaintsTransmission and drivetrain
7 complaintsFuel system
6 complaintsVehicle speed control
6 complaintsLatches, locks and linkages
4 complaintsSeat belts
4 complaintsSuspension
4 complaintsEquipment
3 complaints
← All problems reported for the 2003 BMW Z4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology