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Mercedes-Benz GLA-Class Fuel Economy (MPG)

What is the real-world gas mileage of a 2026 Mercedes-Benz GLA-Class?

The 2026 Mercedes-Benz GLA-Class gets up to 29 MPG combined (26 city / 34 highway) in EPA testing.

Latest model year (2026):

The Mercedes-Benz GLA-Class gets up to 29 MPG combined (26 city / 34 highway) in the Auto (AM8), 4 cyl, 2.0 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
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Mercedes-Benz GLA-Class MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2026Config 1 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2026Config 2 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263429
2026Config 3 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253328
2025Config 1 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline222824
2025Config 2 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263429
2025Config 3 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253328
2024Config 1 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline222824
2024Config 2 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2024Config 3 of 3Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243227
2023Config 1 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline222925
2023Config 2 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243428
2023Config 3 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233226
2023Config 4 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline202522
2022Config 1 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline192522
2022Config 2 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233226
2022Config 3 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2022Config 4 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243428
2021Config 1 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline232925
2021Config 2 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2021Config 3 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2021Config 4 of 4Auto (AM8), 4 cyl, 2.0 L4 2.0LPremium Gasoline202723
2020Config 1 of 2Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243428
2020Config 2 of 2Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2019Config 1 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2019Config 2 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2019Config 3 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2019Config 4 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline222825
2018Config 1 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline222825
2018Config 2 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2018Config 3 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2018Config 4 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2017Config 1 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline222825
2017Config 2 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2017Config 3 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2017Config 4 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2016Config 1 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243127
2016Config 2 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2016Config 3 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243127
2016Config 4 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline222825
2015Config 1 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline232925
2015Config 2 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243127
2015Config 3 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline243127
2015Config 4 of 4Auto (AM7), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Mercedes-Benz GLA-Class data analysis

How Mercedes-Benz GLA-Class combined fuel economy varies

Across 43 configurations recorded for the 2015 through 2026 Mercedes-Benz GLA-Class, combined fuel economy runs from 22 MPG to 29 MPG. The strongest figure belongs to the 2025 Mercedes-Benz GLA-Class (Auto (AM8), 4 cyl, 2.0 L) at 29 MPG, and the weakest to the 2023 car (Auto (AM8), 4 cyl, 2.0 L) at 22 MPG — a spread of 32%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Mercedes-Benz GLA-Class would be misleading.

What changed for 2026

Average combined fuel economy for the 2026 Mercedes-Benz GLA-Class is 27.3 MPG, against 27 MPG for the 2025 car — it rose by 0.3 MPG. That is a real improvement, and it is the kind of change worth paying the newer-year premium for if this figure drives your decision.

How to read this Mercedes-Benz GLA-Class data

This page lists every 2015 through 2026 Mercedes-Benz GLA-Class record we hold for this measurement — 43 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Mercedes-Benz GLA-Class numbers

The 2015 through 2026 Mercedes-Benz GLA-Class entries here cover the variants Auto (AM8), 4 cyl, 2.0 L and Auto (AM7), 4 cyl, 2.0 L. 2023 is the busiest model year in the record with 4 separate measured configurations, which is why a single quoted combined fuel economy figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Mercedes-Benz GLA-Class figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Mercedes-Benz GLA-Class record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speedEPA highway specAutoSpecData adjusted MPGFuel you lose
60 mph34 MPG34 MPG0%
65 mph34 MPG31.7 MPG7%
70 mph34 MPG29.5 MPG13%
75 mph34 MPG27.5 MPG19%
80 mph34 MPG25.6 MPG25%

Our Real-World Speed MPG Adjuster re-scales the Mercedes-Benz GLA-Class EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About GLA-Class MPG

What is the MPG of the Mercedes-Benz GLA-Class?

The Mercedes-Benz GLA-Class gets up to 29 MPG combined (26 city / 34 highway) in the 2026 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Mercedes-Benz GLA-Class trim has the best fuel economy?

The Auto (AM8), 4 cyl, 2.0 L trim offers the best combined fuel economy at 29 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

View full Mercedes-Benz GLA-Class specs

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