BMW I3 REX Problems by Model Year
NHTSA recorded 22 consumer complaints across the 1 model years of the BMW I3 REX (2014–2014) that have at least 5 complaints. 2014 has the most, with 22. Across all years, the part named most often is transmission and drivetrain (11 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All I3 REX model years
Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.
| Year | Complaints | Median mi | Recalls | TSBs | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|
| 2014 | 22 | 5,242 | 0 | 11 | — | Rising |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Transmission and drivetrain11 28%
- Engine7 18%
- Fuel system6 15%
- Electrical system5 13%
- Vehicle speed control3 7.7%
- Steering3 7.7%
- Seat belts2 5.1%
- Electronic stability control2 5.1%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
2014: “Test driving this Bmw i3, I noticed the rex range extender engine was dangerously slow. The 34 hp scooter engine is a hazard in traffic. I also noticed the brake lights would not come on when slowing to a stop. Consumer reports outlined it, and I can't say it better. .... Why are there not minimum fmvss performance standards to cover the hazards while in rex-mode (battery dead, running on scooter motor in heavy, fast, traffic)? This is a new area: weird behavior from evs in rex mode. …”
NHTSA complaint #10861225, filed 2016-04, 14,850 milesOther BMW models
3,167 complaintsBMW 328I
2,577 complaintsBMW X3
2,018 complaintsBMW 325I
1,377 complaintsBMW Z4
1,271 complaintsBMW 3 Series
832 complaintsBMW 528I
830 complaintsBMW 330I
813 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology