2003 BMW Z4 Seat belts Problems
- Complaints
- 4about this part
- Share
- 1%of 414 total for the year
- Median mileage
- 87,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the seat belts of the 2003 BMW Z4, 1% of the 414 complaints for this model year. Where a mileage was given, the median is 87,500 miles. 1 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.
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.
“Takata recall. 2003 Bmw Z4 air bags did not deploy nor did seat belts lock when car hit a tracter trailer who suddenly stopped short on the highway. Bmw was moving at approx 80 MPH when driver hit breaks upon seeing trailer stop short.”
NHTSA complaint #11016271, filed 2017-08, 35,000 milesRelated recalls
- 03V032000Feb 4, 2003On 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…Covers: BMW Z4 2003, X5 2002
Related service bulletins
- 10030843Aug 1, 2009Bmw: belt tensioner harnesses. A repair harness for the front seat safety belt tensioners at the belt retractors may have been improperly installed.
Seat belts: 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 complaintsOther or unknown
5 complaintsLatches, locks and linkages
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 31, 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