BMW M340i MPG by year

EPA combined, city, and highway gas mileage for every BMW M340i model year.

Year	Combined	City	Highway
2026	29	26	33
2025	29	26	33
2024	26	23	31
2023	26	23	32
2022	26	23	32
2021	25–26	22	32
2020	25	22	30