Mercedes-Benz C300 Fuel Economy History
MPG by year — EPA official data.
Best MPG Year
2024
30 MPG combined
Latest Model
2026
29 MPG combined
| Year | Engine | City | Hwy | Combined | Fuel Cost/yr | |
|---|---|---|---|---|---|---|
| 2026 | Premium Hybrid | 25 | 35 | 29 | $2,800 | Details → |
| 2025 | Premium Hybrid | 25 | 35 | 29 | $2,800 | Details → |
| 2024 | Premium Hybrid | 26 | 36 | 30 | $2,700 | Details → |
| 2023 | Premium Hybrid | 25 | 36 | 29 | $2,800 | Details → |
| 2022 | Premium Hybrid | 25 | 35 | 29 | $2,800 | Details → |
| 2021 | Premium | 23 | 35 | 27 | $3,050 | Details → |
| 2020 | Premium | 24 | 35 | 28 | $2,900 | Details → |
| 2019 | Premium | 23 | 34 | 27 | $3,050 | Details → |
| 2018 | Premium | 24 | 33 | 27 | $3,050 | Details → |
| 2017 | Premium | 24 | 34 | 28 | $2,900 | Details → |
| 2016 | Premium | 25 | 34 | 28 | $2,900 | Details → |
| 2015 | Premium | 25 | 33 | 28 | $2,900 | Details → |
| 2011 | Premium | 18 | 25 | 21 | $3,900 | Details → |
| 2010 | Premium | 18 | 26 | 21 | $3,900 | Details → |
| 2009 | Premium or E85 FFV | 18 | 25 | 21 | $3,900 | Details → |
| 2008 | Premium or E85 FFV | 18 | 25 | 21 | $3,900 | Details → |