Mercedes-Benz GLC 300 Gas Mileage (2019-2027)

The Mercedes-Benz GLC 300 gas mileage is 24 to 30 miles per gallon as specified in our data below, organized by trim, option package, and model year.

---

For example, the 2019 Mercedes-Benz GLC 300 GLC 300 4MATIC trim model has a combined gas mileage of 24 miles per gallon, while the 2025 Mercedes-Benz GLC 300 Base has a combined gas mileage of 30 miles per gallon.

---

In the city, the GLC 300 gas mileage is 21 to 26 miles per gallon depending on the trim and model year.

On the highway, the GLC 300 gas mileage is 27 to 33 miles per gallon depending on the trim and model year.

Note: The gas mileage shown for hybrid vehicles is the miles per gallon equivalent.

Check out the Gas Mileage specifications for other makes and models.

2027 Mercedes-Benz GLC 300 Gas Mileage

Depending on trim level, the 2027 Mercedes-Benz GLC 300 gas mileage is from 26 to 27 miles per gallon combined.

In the city, the 2027 GLC 300 gas mileage is from 23 to 24 miles per gallon, depending on the trim.

On the highway, the 2027 GLC 300 gas mileage is from 31 to 32 miles per gallon, depending on the trim.

2026 Mercedes-Benz GLC 300 Gas Mileage

Depending on trim level, the 2026 Mercedes-Benz GLC 300 gas mileage is from 26 to 27 miles per gallon combined.

In the city, the 2026 GLC 300 gas mileage is from 23 to 24 miles per gallon, depending on the trim.

On the highway, the 2026 GLC 300 gas mileage is from 31 to 32 miles per gallon, depending on the trim.

2025 Mercedes-Benz GLC 300 Gas Mileage

Depending on trim level, the 2025 Mercedes-Benz GLC 300 gas mileage is from 27 to 30 miles per gallon combined.

In the city, the 2025 GLC 300 gas mileage is from 24 to 26 miles per gallon, depending on the trim.

On the highway, the 2025 GLC 300 gas mileage is from 30 to 33 miles per gallon, depending on the trim.

2024 Mercedes-Benz GLC 300 Gas Mileage

Depending on trim level, the 2024 Mercedes-Benz GLC 300 gas mileage is from 27 to 30 miles per gallon combined.

In the city, the 2024 GLC 300 gas mileage is from 24 to 26 miles per gallon, depending on the trim.

On the highway, the 2024 GLC 300 gas mileage is from 30 to 33 miles per gallon, depending on the trim.

2023 Mercedes-Benz GLC 300 Gas Mileage

Depending on trim level, the 2023 Mercedes-Benz GLC 300 gas mileage is from 27 to 29 miles per gallon combined.

In the city, the 2023 GLC 300 gas mileage is from 23 to 25 miles per gallon, depending on the trim.

On the highway, the 2023 GLC 300 gas mileage is from 31 to 32 miles per gallon, depending on the trim.

2020 Mercedes-Benz GLC 300 Gas Mileage

Depending on trim level, the 2020 Mercedes-Benz GLC 300 gas mileage is from 24.5 to 25.5 miles per gallon combined.

In the city, the 2020 GLC 300 gas mileage is from 21 to 22 miles per gallon, depending on the trim.

On the highway, the 2020 GLC 300 gas mileage is from 28 to 29 miles per gallon, depending on the trim.

2019 Mercedes-Benz GLC 300 Gas Mileage

Depending on trim level, the 2019 Mercedes-Benz GLC 300 gas mileage is from 24 to 24.5 miles per gallon combined.

In the city, the 2019 GLC 300 gas mileage is from 21 to 22 miles per gallon, depending on the trim.

On the highway, the 2019 GLC 300 gas mileage is 27 miles per gallon.