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2012 Mercedes-Benz GLK-Class vs 2012 Mercedes-Benz ML-Class

Published figures side by side. Rows where our sources have no value for a vehicle read “Not available”. Configurations differ within a model year, so ranges are shown where they apply.

Specification comparison
Specification2012 Mercedes-Benz GLK-Class2012 Mercedes-Benz ML-Class
Engine
EngineVaries by configuration: 3.5L 6-cylinder, 3.5L 6-cylinder (SIDI)Varies by configuration: 3.5L 6-cylinder (SIDI), 3.5L 6-cylinder (SIDI; FFV), 4.7L 8-cylinder turbocharged, 5.5L 8-cylinder turbocharged
Displacement3.5 L3.5 L to 5.5 L
Cylinders66 to 8
AspirationNot availableTurbocharged
Fuel typeGasolineVaries by configuration: Gasoline, Flex fuel
Transmission and drivetrain
TransmissionAutomaticAutomatic
Gears77
DrivetrainVaries by configuration: RWD, 4WD4WD
Fuel economy and range
Combined18 mpg (13.1 L/100 km)20 mpg (11.8 L/100 km) to 15 mpg (15.7 L/100 km)
City16 mpg (14.7 L/100 km)18 mpg (13.1 L/100 km) to 14 mpg (16.8 L/100 km)
Highway22 mpg (10.7 L/100 km) to 21 mpg (11.2 L/100 km)23 mpg (10.2 L/100 km) to 18 mpg (13.1 L/100 km)