Mercedes-Benz GLC300 4matic Coupe MPG by year — every rating on record
The Mercedes-Benz GLC300 4matic Coupe has a combined EPA fuel economy rating for 9 model years, from 2017 to 2025. Across those years its best rated version returned 26 mpg (2024) and its thirstiest returned 22 mpg (2023). The EPA record holds 9 configurations for this nameplate, most recently a Small Sport Utility Vehicle 4WD.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2017 | 1 | 24 mpg | 24 mpg | #32 of 78 (60th pct) | 4-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2018 | 1 | 24 mpg | 24 mpg | #45 of 94 (53th pct) | 4-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2019 | 1 | 23 mpg | 23 mpg | #65 of 93 (30th pct) | 4-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2020 | 1 | 24 mpg | 24 mpg | #60 of 111 (46th pct) | 4-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2021 | 1 | 24 mpg | 24 mpg | #68 of 124 (46th pct) | 4-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2022 | 1 | 23 mpg | 23 mpg | #114 of 151 (25th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2023 | 1 | 22 mpg | 22 mpg | #138 of 166 (17th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2024 | 1 | 26 mpg | 26 mpg | #90 of 176 (49th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
| 2025 | 1 | 26 mpg | 26 mpg | #115 of 194 (41th pct) | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Mercedes-Benz GLC300 4matic Coupe placed highest in 2017 at #32 of 78, and lowest in 2023 at #138 of 166. It spent 2 of its 9 ranked years in the top half of its class.
Every configuration on record
All 9 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 2.0L 4-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 23 | 31 | 26 | 442.3 | 11.4 | $3,000 | 337 | 5/10 |
| 2024 | 2.0L 4-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 24 | 30 | 26 | 442.3 | 11.4 | $3,000 | 340 | 5/10 |
| 2023 | 2.0L 4-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI, turbocharged, start-stop | 20 | 26 | 22 | 522.7 | 13.5 | $3,500 | 397 | 5/10 |
| 2022 | 2.0L 4-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI, turbocharged, start-stop | 21 | 27 | 23 | 500.0 | 12.9 | $3,350 | 383 | 5/10 |
| 2021 | 2.0L 4-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI, turbocharged, start-stop | 22 | 28 | 24 | 479.2 | 12.4 | $3,250 | 363 | 5/10 |
| 2020 | 2.0L 4-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI, turbocharged, start-stop | 21 | 28 | 24 | 479.2 | 12.4 | $3,250 | 374 | 5/10 |
| 2019 | 2.0L 4-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI, turbocharged, start-stop | 21 | 27 | 23 | 500.0 | 12.9 | $3,350 | 383 | 5/10 |
| 2018 | 2.0L 4-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI, turbocharged, start-stop | 22 | 27 | 24 | 479.2 | 12.4 | $3,250 | 375 | 5/10 |
| 2017 | 2.0L 4-cyl 4-Wheel Drive Automatic (S9) Premium | SIDI, turbocharged, start-stop | 22 | 27 | 24 | 479.2 | 12.4 | $3,250 | 375 | 5/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 2 of 5 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2018 → 2019 | 24 → 23 mpg | -1 mpg | 500 gal |
| 2019 → 2020 | 23 → 24 mpg | +1 mpg | 479 gal |
| 2021 → 2022 | 24 → 23 mpg | -1 mpg | 500 gal |
| 2022 → 2023 | 23 → 22 mpg | -1 mpg | 523 gal |
| 2023 → 2024 | 22 → 26 mpg | +4 mpg | 442 gal |
What GLC300 4matic Coupe fuel costs over a year
At the EPA's 11,500 miles a year, the 2025 Mercedes-Benz GLC300 4matic Coupe burns 442 to 442 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,327 | $1,327 | $0 |
| $3.50/gal | $1,548 | $1,548 | $0 |
| $4.00/gal | $1,769 | $1,769 | $0 |
EPA’s own estimate for the 2025 model year is $3,000 to $3,000 a year in fuel, or $3,750 more than the average new vehicle over five years.
How it compares with other Small Sport Utility Vehicle 4WD
Across the 311 nameplates EPA classifies as Small Sport Utility Vehicle 4WD, the median best combined rating is 27 mpg. At 26 mpg the Mercedes-Benz GLC300 4matic Coupe is 1 mpg below the median, which is worth about $57 a year at $3.50 a gallon.
- All Small Sport Utility Vehicle 4WD rankings — every nameplate in the class, best to worst.
Other Mercedes-Benz nameplates
Every Mercedes-Benz model compared → — all nameplates ranked by best combined rating, with what each one costs a year.