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2023 Mercedes-Benz GLC (X254)
Shown: 2023 Mercedes-Benz GLC (X254). Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons
  • Newest year: 2027
  • Hybrid
  • Electric
  • Wagons
  • Partial model year

2023-2027 Mercedes-Benz GLC-Class MPG & Fuel Cost

5 model years · 20–29 MPG combined

27 MPG
Combined
24 MPG
City
32 MPG
Highway
Annual fuel cost · GLC300 2.0L 4-cyl turbo RWD
$2,950

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

2023-2027 Mercedes-Benz GLC-Class at a glance

The 2023-2027 Mercedes-Benz GLC-Class covers 5 model years in the EPA database (29 configurations in all), rated 20–29 MPG combined. The newest model year, 2027, costs about $2,950 a year to fuel for its most efficient version, the GLC300 2.0L 4-cyl turbo RWD (27 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). Powertrains over the years: hybrid, electric, plug-in hybrid and gas. EPA changed the ratings in 2024, 2025, 2026 and 2027. The best combined rating in the generation, 29 MPG, was reached in 2024.

Model year 2027 is still being filled in by EPA (7 configurations listed so far), so rows may be added.

2023-2027 Mercedes-Benz GLC-Class by model year

2023-2027 Mercedes-Benz GLC-Class: EPA combined rating and yearly fuel cost for each model year
Model yearPowertrainsCombined$/yrEPA ratings
2027 (partial) Hybrid, Electric 22–27 MPG, 102–119 MPGe $780–$3,610 Ratings changed
2026 Hybrid 22–27 MPG $2,950–$3,730 Ratings changed
2025 Hybrid, Plug-in hybrid 21–27 MPG $1,850–$3,900 Ratings changed
2024 Hybrid 21–29 MPG $2,820–$3,900 Ratings changed
2023 Gas, Hybrid 20–28 MPG $2,880–$4,050 First year

What the 2027 GLC300 2.0L 4-cyl turbo RWD costs to drive

Per month

$246

$2,950 a year ÷ 12

Per 25 miles

$4.92

Per 100 miles

$19.67

Five years

$14,750

5 × the yearly cost, prices held at today's level

Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).

2027 Mercedes-Benz GLC-Class MPG

Model year 2027 is still being filled in by EPA (7 configurations listed so far), so rows may be added.

Versus 2026: The most efficient configuration stays at 27 MPG. Its annual cost stays at $2,950.

Hybrid · 2.0L, 3.0L
Combined
22–27 MPG
Per year
$2,950–$3,610
See hybrid configurations
Electric · AWD
Combined
102–119 MPGe
Per year
$780–$910

EPA range 331–350 miles.

See electric configurations

Hybrid configurations (5)

2027 Mercedes-Benz GLC-Class hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
GLC300 (Most efficient) 2.0L 4-cyl turbo RWD 24 32 27 $2,950
GLC300 4matic 2.0L 4-cyl turbo AWD 23 31 26 $3,050
GLC300 4matic (coupe) 2.0L 4-cyl turbo AWD 23 31 26 $3,070
AMG GLC53 4matic Plus 3.0L 6-cyl turbo supercharged AWD 20 26 22 $3,610
AMG GLC53 4matic Plus (coupe) 3.0L 6-cyl turbo supercharged AWD 20 26 22 $3,610

5 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Electric configurations (2)

2027 Mercedes-Benz GLC-Class electric configurations: EPA ratings and annual cost
TrimDrivekWh/100 miMPGeRange$/yr
GLC400 4matic electric (ST) (Most efficient) AWD 28 119 350 mi $780
GLC400 4matic electric AWD 33 102 331 mi $910

MPGe is the distance an electric car travels on 33.7 kWh, the energy in a gallon of gasoline. Fewer kWh per 100 miles means a lower running cost.

2026 Mercedes-Benz GLC-Class MPG

22–27 MPG · $2,950–$3,730/yr

Versus 2025: The most efficient configuration stays at 27 MPG. Its annual cost stays at $2,950.

Hybrid · 2.0L
Combined
22–27 MPG
Per year
$2,950–$3,730

Hybrid configurations (5)

2026 Mercedes-Benz GLC-Class hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
GLC300 (Most efficient) 2.0L 4-cyl turbo RWD 24 32 27 $2,950
GLC300 4matic 2.0L 4-cyl turbo AWD 23 31 26 $3,050
GLC300 4matic (coupe) 2.0L 4-cyl turbo AWD 23 31 26 $3,070
AMG GLC43 4matic 2.0L 4-cyl turbo AWD 19 26 22 $3,670
AMG GLC43 4matic Coupe 2.0L 4-cyl turbo AWD 19 25 22 $3,730

5 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2025 Mercedes-Benz GLC-Class MPG

21–27 MPG · $1,850–$3,900/yr

Versus 2024: The most efficient configuration moves from 29 to 27 MPG, down 2. Its annual cost goes from $2,820 to $2,950, $130 more.

Hybrid · 2.0L
Combined
21–27 MPG
Per year
$2,950–$3,900
See hybrid configurations
Plug-in hybrid · 2.0L
Gas-only combined
20–25 MPG
Per year
$1,850–$3,740

On electricity 31–64 MPGe, with 1–54 miles of electric range.

See plug-in hybrid configurations

Hybrid configurations (5)

2025 Mercedes-Benz GLC-Class hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
GLC300 (Most efficient) 2.0L 4-cyl turbo RWD 24 32 27 $2,950
GLC300 4matic 2.0L 4-cyl turbo AWD 23 31 26 $3,050
GLC300 4matic Coupe 2.0L 4-cyl turbo AWD 23 31 26 $3,070
AMG GLC43 4matic 2.0L 4-cyl turbo AWD 19 25 21 $3,810
AMG GLC43 4matic Coupe 2.0L 4-cyl turbo AWD 18 24 21 $3,900

5 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Plug-in hybrid configurations (3)

2025 Mercedes-Benz GLC-Class plug-in hybrid configurations: EPA ratings and annual cost
TrimDriveGas MPGElectric MPGeElectric range$/yr
GLC350e 4matic with EQ Hybrid Tech (Most efficient) AWD 25 64 54 mi $1,850
AMG GLC63 S E Performance AWD 20 31 1 mi $3,740
AMG GLC63 S E Performance (coupe) AWD 20 31 1 mi $3,740

Cost assumes EPA's utility factor: 25%–77% of miles are driven on electricity (residential electricity 18.3¢/kWh (U.S. average, Jul 2026)) and the rest on gasoline (premium gasoline $5.36/gal (U.S. average, Sep 2026)).

2024 Mercedes-Benz GLC-Class MPG

21–29 MPG · $2,820–$3,900/yr

Versus 2023: The most efficient configuration moves from 28 to 29 MPG, up 1. Its annual cost goes from $2,880 to $2,820, $60 less.

Hybrid · 2.0L
Combined
21–29 MPG
Per year
$2,820–$3,900

Hybrid configurations (5)

2024 Mercedes-Benz GLC-Class hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
GLC300 (Most efficient) 2.0L 4-cyl turbo RWD 26 33 29 $2,820
GLC300 4matic 2.0L 4-cyl turbo AWD 24 32 27 $2,990
GLC300 4matic Coupe 2.0L 4-cyl turbo AWD 24 30 26 $3,070
AMG GLC43 4matic 2.0L 4-cyl turbo AWD 19 25 21 $3,810
AMG GLC43 4matic Coupe 2.0L 4-cyl turbo AWD 18 24 21 $3,900

5 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

2023 Mercedes-Benz GLC-Class MPG

20–28 MPG · $2,880–$4,050/yr
Gas · 2.0L, 3.0L
Combined
20–22 MPG
Per year
$3,590–$4,050
See gas configurations
Hybrid · 2.0L
Combined
26–28 MPG
Per year
$2,880–$3,080
See hybrid configurations

Gas configurations (2)

2023 Mercedes-Benz GLC-Class gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
GLC300 4matic Coupe (Most efficient) 2.0L 4-cyl turbo AWD 20 26 22 $3,590
AMG GLC43 4matic Coupe 3.0L 6-cyl turbo AWD 17 24 20 $4,050

2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Hybrid configurations (2)

2023 Mercedes-Benz GLC-Class hybrid configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
GLC300 (Most efficient) 2.0L 4-cyl turbo RWD 25 32 28 $2,880
GLC300 4matic 2.0L 4-cyl turbo AWD 23 31 26 $3,080

2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the GLC300 2.0L 4-cyl turbo RWD: $3,510 in California and $2,560 in Texas, a $950 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2027 wagon models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · EIA residential electricity, U.S. average, Jul 2026 (18.3¢/kWh) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

What gas mileage does the 2023-2027 Mercedes-Benz GLC-Class get?

EPA rates the 2023-2027 Mercedes-Benz GLC-Class at 20–29 MPG combined across 29 configurations and 5 model years. The most efficient version, the 2024 GLC300 2.0L 4-cyl turbo RWD, is rated 29 MPG (26 city, 33 highway). By powertrain: Hybrid: 21–29 MPG; Electric: 102–119 MPGe; Plug-in hybrid: 20–25 MPG; Gas: 20–22 MPG.

Which years had the best MPG in the 2023-2027 Mercedes-Benz GLC-Class?

The GLC300 2.0L 4-cyl turbo RWD reached the generation's best combined rating, 29 MPG, in 2024. The lowest top rating, 27 MPG, was in 2025, 2026 and 2027.

Did EPA ratings change during the 2023-2027 Mercedes-Benz GLC-Class?

Yes. Ratings changed in 2024, 2025, 2026 and 2027.

How does the 2023-2027 Mercedes-Benz GLC-Class compare with the previous generation?

The previous generation (2016-2022 Mercedes-Benz GLC-Class) is rated 17–25 MPG combined and costs $2,290–$4,630 a year to fuel; the 2023-2027 model is rated 20–29 MPG and costs $780–$4,050 a year.

How much does it cost to fuel a 2027 Mercedes-Benz GLC-Class per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the GLC300 2.0L 4-cyl turbo RWD costs about $2,950 a year. Across all 7 configurations the cost runs $780–$3,610 a year. That is a $2,830 difference between the cheapest and the costliest configuration.

How much does it cost to drive a 2027 Mercedes-Benz GLC-Class 100 miles?

About $19.67 per 100 miles for the GLC300 2.0L 4-cyl turbo RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $5.20 and $24.07 across all configurations. That is the annual cost over 15,000 miles divided by 150.

Is the 2027 Mercedes-Benz GLC-Class more efficient in the city or on the highway?

The GLC300 2.0L 4-cyl turbo RWD is rated 24 city and 32 highway MPG, so it is more efficient on the highway, by 8 MPG.

What is the range and charging cost of the 2027 Mercedes-Benz GLC-Class?

EPA rates the range at 331–350 miles depending on configuration, and the GLC400 4matic electric (ST) AWD goes 350 mi. Efficiency is 28–33 kWh per 100 miles (102–119 MPGe). At residential electricity 18.3¢/kWh (U.S. average, Jul 2026), charging costs $780–$910 a year, or $5.20 per 100 miles for the GLC400 4matic electric (ST) AWD.

Is the 2027 Mercedes-Benz GLC-Class different from the 2026 model?

The most efficient configuration stays at 27 MPG. Its annual cost stays at $2,950. EPA lists 7 configurations for 2027 against 5 configurations for 2026. See the 2026 Mercedes-Benz GLC-Class for that year.