Mercedes-Benz GLC 300 MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated Mercedes-Benz GLC 300 model year from 2016 to 2026 — each engine and transmission with its official city, highway and combined figures. Over these years the GLC 300 has been offered with 2.0L 4-cyl engines; the most efficient version is the 2024 (up to 29 MPG combined). Every rated gas version calls for premium gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.
Mercedes-Benz GLC 300 fuel economy by year
| Year | Combined | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2026 | 26–27 MPG | 2.0L 4-cyl | $56,785 | 1,695 listings |
| 2025 | 26–27 MPG | 2.0L 4-cyl | $48,484 | 226 listings |
| 2024 | 26–29 MPG | 2.0L 4-cyl | $42,924 | 96 listings |
| 2023 | 22–28 MPG | 2.0L 4-cyl | $39,500 | 67 listings |
| 2022 | 23–24 MPG | 2.0L 4-cyl | $30,059 | 396 listings |
| 2021 | 23–25 MPG | 2.0L 4-cyl | $26,999 | 260 listings |
| 2020 | 24 MPG | 2.0L 4-cyl | $23,998 | 128 listings |
| 2019 | 23–24 MPG | 2.0L 4-cyl | $20,076 | 128 listings |
| 2018 | 24 MPG | 2.0L 4-cyl | $18,320 | 83 listings |
| 2017 | 24 MPG | 2.0L 4-cyl | $17,245 | 54 listings |
| 2016 | 24 MPG | 2.0L 4-cyl | $13,950 | 22 listings |
2026 Mercedes-Benz GLC 300: engines & MPG
The 2026 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy from 26 to 27 MPG. Used 2026 models currently list for a median of $56,785 on VehiSales (1,695 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 24 | 32 | 27 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 23 | 31 | 26 MPG |
| GLC300 4matic (coupe) | 2.0L 4-cyl | Automatic 9-spd | Premium | 23 | 31 | 26 MPG |
2025 Mercedes-Benz GLC 300: engines & MPG
The 2025 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy from 26 to 27 MPG. Used 2025 models currently list for a median of $48,484 on VehiSales (226 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 24 | 32 | 27 MPG |
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 23 | 31 | 26 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 23 | 31 | 26 MPG |
2024 Mercedes-Benz GLC 300: engines & MPG
The 2024 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy from 26 to 29 MPG. Used 2024 models currently list for a median of $42,924 on VehiSales (96 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 26 | 33 | 29 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 24 | 32 | 27 MPG |
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 24 | 30 | 26 MPG |
2023 Mercedes-Benz GLC 300: engines & MPG
The 2023 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy from 22 to 28 MPG. Used 2023 models currently list for a median of $39,500 on VehiSales (67 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 25 | 32 | 28 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 23 | 31 | 26 MPG |
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 20 | 26 | 22 MPG |
2022 Mercedes-Benz GLC 300: engines & MPG
The 2022 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy from 23 to 24 MPG. Used 2022 models currently list for a median of $30,059 on VehiSales (396 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 28 | 24 MPG |
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 27 | 24 MPG |
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 27 | 23 MPG |
2021 Mercedes-Benz GLC 300: engines & MPG
The 2021 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy from 23 to 25 MPG. Used 2021 models currently list for a median of $26,999 on VehiSales (260 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 29 | 25 MPG |
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 28 | 24 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 28 | 23 MPG |
2020 Mercedes-Benz GLC 300: engines & MPG
The 2020 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy of 24 MPG. Used 2020 models currently list for a median of $23,998 on VehiSales (128 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 28 | 24 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 28 | 24 MPG |
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 29 | 24 MPG |
2019 Mercedes-Benz GLC 300: engines & MPG
The 2019 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy from 23 to 24 MPG. Used 2019 models currently list for a median of $20,076 on VehiSales (128 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 27 | 24 MPG |
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 27 | 24 MPG |
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 27 | 23 MPG |
2018 Mercedes-Benz GLC 300: engines & MPG
The 2018 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy of 24 MPG. Used 2018 models currently list for a median of $18,320 on VehiSales (83 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 28 | 24 MPG |
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 27 | 24 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 28 | 24 MPG |
2017 Mercedes-Benz GLC 300: engines & MPG
The 2017 GLC 300 was EPA-rated in 3 versions (2.0L 4-cyl), with combined economy of 24 MPG. Used 2017 models currently list for a median of $17,245 on VehiSales (54 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 4matic Coupe | 2.0L 4-cyl | Automatic (S9) | Premium | 22 | 27 | 24 MPG |
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 28 | 24 MPG |
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 28 | 24 MPG |
2016 Mercedes-Benz GLC 300: engines & MPG
The 2016 GLC 300 was EPA-rated in 2 versions (2.0L 4-cyl), with combined economy of 24 MPG. Used 2016 models currently list for a median of $13,950 on VehiSales (22 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| GLC300 4matic | 2.0L 4-cyl | Automatic 9-spd | Premium | 21 | 28 | 24 MPG |
| GLC300 | 2.0L 4-cyl | Automatic 9-spd | Premium | 22 | 28 | 24 MPG |
Frequently asked questions
What MPG does a Mercedes-Benz GLC 300 get?
Depending on year and engine, EPA combined ratings for the GLC 300 range from 24 to 29 MPG. The most efficient rated version is the 2024 model year.
What engines does the 2026 Mercedes-Benz GLC 300 have?
The 2026 GLC 300 was EPA-rated with 2.0L 4-cyl engines — see the 2026 table above for each version's exact city/highway figures.
Does the Mercedes-Benz GLC 300 require premium gas?
Yes — every EPA-rated gas GLC 300 version specifies premium gasoline.
Is there a hybrid or electric GLC 300?
Yes — the ratings above include hybrid versions; look for them in the per-year tables.
https://vehisales.com/research/fuel-economy/mercedes-benz/glc-300.
See also: Mercedes-Benz GLC 300 hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].