Mercedes-Benz GLC300 Fuel Economy History
MPG by year — EPA official data.
Best MPG Year
2024
29 MPG combined
Latest Model
2026
27 MPG combined
| Year | Engine | City | Hwy | Combined | Fuel Cost/yr | |
|---|---|---|---|---|---|---|
| 2026 | Premium Hybrid | 24 | 32 | 27 | $3,050 | Details → |
| 2025 | Premium Hybrid | 24 | 32 | 27 | $3,050 | Details → |
| 2024 | Premium Hybrid | 26 | 33 | 29 | $2,800 | Details → |
| 2023 | Premium Hybrid | 25 | 32 | 28 | $2,900 | Details → |
| 2022 | Premium | 22 | 27 | 24 | $3,400 | Details → |
| 2021 | Premium | 22 | 29 | 25 | $3,250 | Details → |
| 2020 | Premium | 22 | 29 | 24 | $3,400 | Details → |
| 2019 | Premium | 22 | 27 | 24 | $3,400 | Details → |
| 2018 | Premium | 22 | 28 | 24 | $3,400 | Details → |
| 2017 | Premium | 22 | 28 | 24 | $3,400 | Details → |
| 2016 | Premium | 22 | 28 | 24 | $3,400 | Details → |