Mercedes-Benz C300 MPG by year

EPA combined, city, and highway gas mileage for every Mercedes-Benz C300 model year.

Year	Combined	City	Highway
2026	29	25	35
2025	29	25	35
2024	30	26	36
2023	24–29	23	32
2022	24–29	23	31
2021	26–27	23	33
2020	24–28	22	32
2019	24–27	22	31
2018	25–27	23	31
2017	26–28	23	32
2016	28	25	34
2015	28	25	33
2011	20–21	18	25
2010	21	18	26