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Mercedes-Benz CLS-Class MPG & Fuel Economy

The 2023 Mercedes-Benz CLS-Class gets up to 26 MPG combined (23 city / 30 highway) in EPA testing.

Latest model year (2023):

The Mercedes-Benz CLS-Class gets up to 25 MPG combined (22 city / 30 highway) in the Auto 9-spd, 6 cyl, 3.0 L trim.

Verifiedfueleconomy.gov · Verified August 9, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenance

Mercedes-Benz CLS-Class MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2023Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline223025
2022Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline223025
2021Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline212623
2021Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline233026
2021Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline222925
2020Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline233026
2020Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline212723
2020Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline243126
2019Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline212723
2019Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline243126
2019Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline233026
2018Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162218
2018Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172520
2018Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline182621
2017Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162218
2017Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline182621
2017Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172520
2016Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192622
2016Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline203024
2016Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162218
2016Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172520
2016Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline182620
2015Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192622
2015Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202924
2015Auto 7-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172419
2015Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162218
2015Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline182620

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 CLS-Class MPG FAQ

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

The Mercedes-Benz CLS-Class gets up to 26 MPG combined (23 city / 30 highway) in the 2023 model year. Fuel economy varies by engine and trim — see the full table above for details.

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

The Auto 9-spd, 6 cyl, 3.0 L trim offers the best combined fuel economy at 26 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

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