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Mercedes-Benz GLS-Class Engine Specifications

The 2026 Mercedes-Benz GLS-Class is offered with 3.0L–5.5L engines in 6 and 8-cylinder form, per EPA fuel-economy records.

Latest model year (2026):

The Mercedes-Benz GLS-Class is available with 6 3.0L and Automatic 9-spd (All-Wheel Drive).

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenance

Mercedes-Benz GLS-Class Engine Specs — All Years

YearTrimCylindersDispl.TransmissionDriveFuel TypeVehicle Class
2026Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2026Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2026Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2026Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2025Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2025Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2025Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2025Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2024Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2024Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2024Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2024Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2023Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2023Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2023Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2023Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2022Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2022Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2022Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2022Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spdAll-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2021Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2021Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2021Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2021Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2020Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2020Auto 9-spd, 8 cyl, 4.0 L84.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2019Auto 7-spd, 8 cyl, 5.5 L85.5LAutomatic 7-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2019Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2019Auto 9-spd, 8 cyl, 4.7 L84.7LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2018Auto 7-spd, 8 cyl, 5.5 L85.5LAutomatic 7-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2018Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2018Auto 9-spd, 8 cyl, 4.7 L84.7LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2017Auto 7-spd, 8 cyl, 5.5 L85.5LAutomatic 7-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2017Auto 9-spd, 6 cyl, 3.0 L63.0LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD
2017Auto 9-spd, 8 cyl, 4.7 L84.7LAutomatic 9-spd4-Wheel DrivePremium GasolineStandard Sport Utility Vehicle 4WD

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 GLS-Class Engine Specs FAQ

What engine does the Mercedes-Benz GLS-Class have?

The Mercedes-Benz GLS-Class is available with 6 cylinder engines ranging up to 3.0L. Transmission and drivetrain options vary by trim. See the full table above.

Is the Mercedes-Benz GLS-Class available with all-wheel drive?

Yes, the Mercedes-Benz GLS-Class is available with all-wheel drive. Check the "Drive" column in the table above for specific trims.

All Mercedes-Benz GLS-Class specifications

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