2018 BMW X3 problems and complaints
Owners have filed 75 complaints with NHTSA about the 2018 BMW X3. The most-reported areas: Electrical System (21), Engine (16), Unknown Or Other (12).
Key takeaways
- 75 owner complaints on file with NHTSA.
- 4 involve a crash, 2 a fire, 2 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 21 | 28% |
| Engine | 16 | 21% |
| Unknown Or Other | 12 | 16% |
| Structure | 9 | 12% |
| Steering | 7 | 9% |
| Exterior Lighting | 5 | 7% |
| Air Bags | 5 | 7% |
| Suspension | 5 | 7% |
| Service Brakes | 5 | 7% |
| Engine And Engine Cooling | 4 | 5% |
| Back Over Prevention | 3 | 4% |
| Power Train | 2 | 3% |
One complaint can name several components, so shares add up to more than 100%.
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Structure - filed 2026-09-17
A rock hit the front of the moonroof glass and a minutes later the moonroof tempered glass exploded while driving.
Electrical System - filed 2026-09-10
My car suddenly lost all power when at a red light in a turn lane on an active roadway. Fortunately, it was daytime because I could not turn on hazards or lights. I couldn't open the trunk and more importantly I couldn't shift into neutral because of the power failure. A tow truck was sent but he didn't have rollers...
Engine - filed 2026-08-14
There were several radiatior hose leaks that happened in the winter due to the outdated plastic housing and lines that seized and cracked with colder temperatures. It has become extremely common historically and not considered affordable part or labor to replace.
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More for the 2018 BMW X3
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.