Reliability & cost of ownership
Bmw M340i Reliability & Common Problems
How reliable is the Bmw M340i? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for a full reliability and repair-cost forecast.
Bmw M340i problems by model year
17 recall entries and 62 owner complaints on file across 3 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2022 M340i | 1 | 6 | No NCAP test | Reliability forecast → |
| 2021 M340i | 6 | 9 | No NCAP test | Reliability forecast → |
| 2020 M340i | 10 | 47 | No NCAP test | Reliability forecast → |
Most-complained-about components
Owner complaints filed with NHTSA against the Bmw M340i, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- engine38 complaints
- unknown or other10 complaints
- electrical system8 complaints
- power train6 complaints
- engine and engine cooling4 complaints
- fuel/propulsion system4 complaints
- service brakes3 complaints
- tires2 complaints