Mercedes-Benz C300 4matic Fuel Economy History
MPG by year — EPA official data.
Best MPG Year
2026
27 MPG combined
Latest Model
2026
27 MPG combined
| Year | Engine | City | Hwy | Combined | Fuel Cost/yr | |
|---|---|---|---|---|---|---|
| 2026 | Premium Hybrid | 24 | 33 | 27 | $3,050 | Details → |
| 2025 | Premium Hybrid | 24 | 33 | 27 | $3,050 | Details → |
| 2024 | Premium Hybrid | 23 | 33 | 27 | $3,050 | Details → |
| 2023 | Premium Hybrid | 24 | 33 | 27 | $3,050 | Details → |
| 2022 | Premium Hybrid | 23 | 33 | 27 | $3,050 | Details → |
| 2021 | Premium | 23 | 33 | 27 | $3,050 | Details → |
| 2020 | Premium | 23 | 33 | 26 | $3,150 | Details → |
| 2019 | Premium | 22 | 33 | 26 | $3,150 | Details → |
| 2018 | Premium | 23 | 32 | 26 | $3,150 | Details → |
| 2017 | Premium | 24 | 31 | 27 | $3,050 | Details → |
| 2016 | Premium | 24 | 31 | 27 | $3,050 | Details → |
| 2015 | Premium | 24 | 31 | 27 | $3,050 | Details → |
| 2014 | Premium | 20 | 27 | 22 | $3,700 | Details → |
| 2013 | Premium or E85 FFV | 19 | 26 | 22 | $3,700 | Details → |
| 2012 | Premium or E85 FFV | 18 | 25 | 20 | $4,100 | Details → |
| 2011 | Premium | 17 | 24 | 20 | $4,100 | Details → |
| 2010 | Premium | 17 | 24 | 20 | $4,100 | Details → |
| 2009 | Premium or E85 FFV | 17 | 25 | 20 | $4,100 | Details → |
| 2008 | Premium | 17 | 25 | 20 | $4,100 | Details → |