FuelFacts

2025 Mercedes-Benz AMG GLB35 4matic MPG & Specs — Real-World vs EPA, All Trims

Every gas trim of this model takes premium.

23
MPG combined (21 city / 26 hwy)
$3,052
est. fuel / year (today's prices, 15k mi)
Premium
gas type

Is the 2025 Mercedes-Benz AMG GLB35 4matic good on gas?

At up to 23 MPG combined, the 2025 Mercedes-Benz AMG GLB35 4matic is better than average for a Midsize Station Wagons — that class averages about 21.1 MPG across 613 EPA-tested versions, so it's a good pick on fuel for its size.

Real-world MPG vs the EPA number

The EPA figures above come from a standardized dynamometer test, not the open road — real-world MPG typically runs a bit lower depending on your driving, climate and terrain. That's true of every car on this site, old or new.

At today's AAA national average price — $4.68/gal for premium gas as of 2026-07-05 — the most efficient trim runs about $3,052/year (roughly $254/month, about $20.35 per 100 miles) at the EPA's assumed 15,000 miles/year, using an estimated 652 gallons a year. We don't estimate a cost-per-fill since exact tank size isn't in the public EPA dataset, but the per-100-mile figure scales to any tank. Current national average gas prices →

2025 Mercedes-Benz AMG GLB35 4matic trims & fuel economy

Trim (engine / transmission)FuelMPGFuel/yr (today's price)
2.0L 4-cyl, AM8 automatic, AWDPREMIUM23$3,052
Where the EPA lists premium, that’s the fuel the maker specified for the mileage test — many such engines run on regular with slightly less power/MPG. Whether premium is required or just recommended is an owner’s-manual detail the EPA dataset omits, so we don’t guess it. What premium, regular and the octane numbers mean →

2025 Mercedes-Benz AMG GLB35 4matic specs

What the EPA test-car listings record for this model year — every combination sold is a row in the trims table above.

Engine options2.0L 4-cyl turbo
TransmissionAM8 automatic
Drive typeAWD
EPA body classMidsize Station Wagons
FuelPremium
Tailpipe CO₂390 g/mi

Other years of the Mercedes-Benz AMG GLB35 4matic

2026 Mercedes-Benz AMG GLB35 4matic2024 Mercedes-Benz AMG GLB35 4matic2023 Mercedes-Benz AMG GLB35 4matic2022 Mercedes-Benz AMG GLB35 4matic2021 Mercedes-Benz AMG GLB35 4matic

Similar cars (Midsize Station Wagons)

2025 Mercedes-Benz EQE 350 Plus (SUV)2025 Mercedes-Benz EQE 500 4matic (SUV)2026 Mercedes-Benz AMG EQE 4matic Plus (SUV)2026 Honda CR-V e-FCEV2026 Volvo V90CC B6 AWD2026 Audi A6 Allroad quattro

Cars that take premium · Cheapest cars to fuel · Where fuel grade depends on the trim · Fuel guides

1 trim(s) · EPA FuelEconomy.gov data retrieved 2026-10-25 · fuel prices AAA national average as of 2026-07-05.