Mercedes-Benz GLK-Class Engine Specifications

The 2015 Mercedes-Benz GLK-Class is offered with 2.1L–3.5L engines in 4 and 6-cylinder form, per EPA fuel-economy records.

Latest model year (2015):

The Mercedes-Benz GLK-Class is available with 4 2.1L and Automatic 7-spd (4-Wheel Drive).

Verifiedfueleconomy.gov · Verified August 11, 2026

Mercedes-Benz GLK-Class Engine Specs — All Years

YearTrimCylindersDispl.TransmissionDriveFuel TypeVehicle Class
2015Config 1 of 5Auto 7-spd, 4 cyl, 2.1 L42.1LAutomatic 7-spd4-Wheel DriveDieselSmall Sport Utility Vehicle 4WD
2015Config 2 of 5Auto 7-spd, 6 cyl, 3.5 L63.5LAutomatic 7-spdRear-Wheel DrivePremium GasolineSmall Sport Utility Vehicle 2WD
2015Config 3 of 5Auto 7-spd, 6 cyl, 3.5 L63.5LAutomatic 7-spd4-Wheel DrivePremium GasolineSmall Sport Utility Vehicle 4WD
2015Config 4 of 5Auto 7-spd, 6 cyl, 3.5 L63.5LAutomatic 7-spdRear-Wheel DrivePremium GasolineSmall Sport Utility Vehicle 2WD
2015Config 5 of 5Auto 7-spd, 6 cyl, 3.5 L63.5LAutomatic 7-spd4-Wheel DrivePremium GasolineSmall 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 GLK-Class data analysis

How Mercedes-Benz GLK-Class engine displacement varies

Across 5 configurations recorded for the 2015 Mercedes-Benz GLK-Class, engine displacement runs from 2.1 litres to 3.5 litres. The strongest figure belongs to the 2015 Mercedes-Benz GLK-Class (Auto 7-spd, 4 cyl, 2.1 L) at 2.1 litres, and the weakest to the 2015 car (SIDI) at 3.5 litres — a spread of 40%. 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 GLK-Class would be misleading.

How to read this Mercedes-Benz GLK-Class data

This page lists every 2015 Mercedes-Benz GLK-Class record we hold for this measurement — 5 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.

Where these Mercedes-Benz GLK-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 GLK-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.

Frequently Asked Questions About GLK-Class Engine Specs

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

The Mercedes-Benz GLK-Class is available with 4 cylinder engines ranging up to 2.1L. Transmission and drivetrain options vary by trim. See the full table above.

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

Check the drive column in the table above to see available drivetrain configurations.

View full Mercedes-Benz GLK-Class specs

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