2025 Mercedes-Benz GLC300 MPG
EPA-rated · verified snapshot 2026-08-30 · Small Sport Utility Vehicle 2WD
The 2025 Mercedes-Benz GLC300 gets 27 MPG combined — 24 city and 32 highway — in its most efficient configuration (2.0L · 4-cyl · Automatic 9-spd · Rear-Wheel Drive · Hybrid).
City24 MPG
Highway32 MPG
$2,800Fuel cost / yr (EPA est.)
323 g/miCO₂
PremiumFuel
$-3,0005-yr fuel cost vs. average vehicle
5 / 10EPA Fuel Economy & GHG score
Where it sits among compact suvs (2025)
Compared with the 2024 model, the 2025 GLC300 is -2 MPG worse at its best.
FAQ
Does the 2025 GLC300 get good gas mileage for its class?
The 2025 GLC300's 27 MPG combined is below the compact suvs average of 45.4 MPG for 2025.
How much does it cost to fuel a 2025 GLC300 per year?
Based on EPA assumptions (15,000 miles/year), estimated annual fuel cost is $2,800 for the most efficient trim.
What is the city and highway MPG of the 2025 GLC300?
The most efficient trim is rated 24 MPG city and 32 MPG highway.