2023 Mercedes-Benz GLC300 MPG
EPA-rated · verified snapshot 2026-08-30 · Small Sport Utility Vehicle 2WD
The 2023 Mercedes-Benz GLC300 gets 28 MPG combined — 25 city and 32 highway — in its most efficient configuration (2.0L · 4-cyl · Automatic 9-spd · Rear-Wheel Drive · Hybrid).
City25 MPG
Highway32 MPG
$2,700Fuel cost / yr (EPA est.)
316 g/miCO₂
PremiumFuel
$-2,5005-yr fuel cost vs. average vehicle
6 / 10EPA Fuel Economy & GHG score
Where it sits among compact suvs (2023)
Compared with the 2022 model, the 2023 GLC300 is +4 MPG better at its best.
FAQ
Does the 2023 GLC300 get good gas mileage for its class?
The 2023 GLC300's 28 MPG combined is below the compact suvs average of 34.1 MPG for 2023.
How much does it cost to fuel a 2023 GLC300 per year?
Based on EPA assumptions (15,000 miles/year), estimated annual fuel cost is $2,700 for the most efficient trim.
What is the city and highway MPG of the 2023 GLC300?
The most efficient trim is rated 25 MPG city and 32 MPG highway.