[6] Bearing the X206 codename, it received external body cladding, a 40 mm increase in ride height, 4Matic AWD and additional drive modes.

The M254 is equipped with a twin-scroll "segmented" turbocharger featuring an overboost function that allows it to produce an additional 26 kW for up to 30 seconds, as well as a 48V electric supercharger that provides assist at low engine speeds.

Compared with the preceding Diesel engine, the OM654 has a new crankshaft that increases the stroke to 94.3 millimeters, and a water-cooled, variable turbine geometry turbocharger.

The mainline C-class 4Matic models and AMG C43 continue to use permanent AWD with an open double-planetary type center differential.

AMG C43 models are offered with the more rear-biased AMG-Performance Permanent AWD, which uses a center differential geared for a 31/69 front-to-rear torque split.

This system replaces the open center differential with an electronically controlled multi-disc clutch which enables stepless coupling of the front axle to the drivetrain.