AutoSpecData

Mercedes-Benz C-Class Fuel Economy (MPG)

What is the real-world gas mileage of a 2027 Mercedes-Benz C-Class?

The 2027 Mercedes-Benz C-Class gets up to 30 MPG combined (26 city / 36 highway) in EPA testing.

Latest model year (2027):

The Mercedes-Benz C-Class gets up to 29 MPG combined (25 city / 35 highway) in the Auto 9-spd, 4 cyl, 2.0 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsCurb WeightSafetyEV Range

Mercedes-Benz C-Class MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2027Config 1 of 2Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2027Config 2 of 2Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline253529
2026Config 1 of 3Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline192722
2026Config 2 of 3Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2026Config 3 of 3Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline253529
2025Config 1 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline192220
2025Config 2 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline253529
2025Config 3 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2025Config 4 of 4Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline192722
2024Config 1 of 3Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline202823
2024Config 2 of 3Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline263630
2024Config 3 of 3Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2023Config 1 of 10Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline192622
2023Config 2 of 10Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223125
2023Config 3 of 10Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223125
2023Config 4 of 10Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline213025
2023Config 5 of 10Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline212924
2023Config 6 of 10Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline253629
2023Config 7 of 10Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2023Config 8 of 10Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline182721
2023Config 9 of 10Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline182822
2023Config 10 of 10Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline162419
2022Config 1 of 8Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223125
2022Config 2 of 8Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2022Config 3 of 8Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline253529
2022Config 4 of 8Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline212824
2022Config 5 of 8Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223125
2022Config 6 of 8Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline213024
2022Config 7 of 8Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192822
2022Config 8 of 8Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192822
2021Config 1 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2021Config 2 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2021Config 3 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233226
2021Config 4 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233527
2021Config 5 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2021Config 6 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2021Config 7 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192722
2021Config 8 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192722
2021Config 9 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline182721
2021Config 10 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172520
2021Config 11 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172621
2021Config 12 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172620
2020Config 1 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline213025
2020Config 2 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223125
2020Config 3 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline212924
2020Config 4 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline212924
2020Config 5 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243528
2020Config 6 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233326
2020Config 7 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192722
2020Config 8 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline182521
2020Config 9 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192722
2020Config 10 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172420
2020Config 11 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline182721
2020Config 12 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172620
2019Config 1 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233427
2019Config 2 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223125
2019Config 3 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223125
2019Config 4 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline212924
2019Config 5 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline212924
2019Config 6 of 12Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223326
2019Config 7 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192722
2019Config 8 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192722
2019Config 9 of 12Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline182521
2019Config 10 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline182721
2019Config 11 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172420
2019Config 12 of 12Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172620
2018Config 1 of 13Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline283230
2018Config 2 of 13Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline182420
2018Config 3 of 13Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172219
2018Config 4 of 13Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172319
2018Config 5 of 13Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233226
2018Config 6 of 13Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2018Config 7 of 13Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2018Config 8 of 13Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline222925
2018Config 9 of 13Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline222925
2018Config 10 of 13Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2018Config 11 of 13Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202723
2018Config 12 of 13Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202722
2018Config 13 of 13Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192622
2017Config 1 of 14Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline232925
2017Config 2 of 14Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233026
2017Config 3 of 14Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243127
2017Config 4 of 14Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243428
2017Config 5 of 14Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline283230
2017Config 6 of 14Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172319
2017Config 7 of 14Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline182521
2017Config 8 of 14Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline182420
2017Config 9 of 14Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline172219
2017Config 10 of 14Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline222925
2017Config 11 of 14Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233126
2017Config 12 of 14Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202823
2017Config 13 of 14Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192622
2017Config 14 of 14Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202823
2016Config 1 of 5Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243127
2016Config 2 of 5Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2016Config 3 of 5Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline283230
2016Config 4 of 5Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline212824
2016Config 5 of 5Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline182520
2015Config 1 of 8Auto 7-spd, 4 cyl, 1.8 L4 1.8LPremium Gasoline213125
2015Config 2 of 8Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline253328
2015Config 3 of 8Auto 7-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline243127
2015Config 4 of 8Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline212824
2015Config 5 of 8Auto 7-spd, 6 cyl, 3.5 L6 3.5LPremium Gasoline192722
2015Config 6 of 8Auto 7-spd, 6 cyl, 3.5 L6 3.5LPremium Gasoline202823
2015Config 7 of 8Auto 7-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline182420
2015Config 8 of 8Auto 7-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline131915

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 C-Class data analysis

How Mercedes-Benz C-Class combined fuel economy varies

Across 106 configurations recorded for the 2015 through 2027 Mercedes-Benz C-Class, combined fuel economy runs from 15 MPG to 30 MPG. The strongest figure belongs to the 2016 Mercedes-Benz C-Class (Auto 7-spd, 4 cyl, 2.0 L) at 30 MPG, and the weakest to the 2015 car (Auto 7-spd, 8 cyl, 6.2 L) at 15 MPG — a spread of 100%. 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 C-Class would be misleading.

What changed for 2027

Average combined fuel economy for the 2027 Mercedes-Benz C-Class is 28 MPG, against 26 MPG for the 2026 car — it rose by 2 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 C-Class data

This page lists every 2015 through 2027 Mercedes-Benz C-Class record we hold for this measurement — 106 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 C-Class numbers

The 2015 through 2027 Mercedes-Benz C-Class entries here cover variants including Auto 9-spd, 4 cyl, 2.0 L, Auto 9-spd, 6 cyl, 3.0 L, Auto 9-spd, 8 cyl, 4.0 L, Auto 7-spd, 4 cyl, 2.0 L, Auto 7-spd, 8 cyl, 4.0 L, Auto 7-spd, 6 cyl, 3.0 L, Auto 7-spd, 4 cyl, 1.8 L and Auto 7-spd, 6 cyl, 3.5 L. 2017 is the busiest model year in the record with 14 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 C-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 C-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 mph36 MPG36 MPG0%
65 mph36 MPG33.6 MPG7%
70 mph36 MPG31.3 MPG13%
75 mph36 MPG29.1 MPG19%
80 mph36 MPG27.1 MPG25%

Our Real-World Speed MPG Adjuster re-scales the Mercedes-Benz C-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 C-Class MPG

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

The Mercedes-Benz C-Class gets up to 30 MPG combined (26 city / 36 highway) in the 2027 model year. Fuel economy varies by engine and trim — see the full table above for details.

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

The Auto 9-spd, 4 cyl, 2.0 L trim offers the best combined fuel economy at 30 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

View full Mercedes-Benz C-Class specs

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