There will be two new engines in the Mercedes-Benz ML-Class lineup this year. The new powertrains both feature twin-turbocharging and smaller displacements than the engines they replace, while also ...

Also new for 2015 is the ML250 Bluetec. This is the only four-cylinder ML offered in the U.S. lineup, and the four-pot diesel replaces last year’s ML350 Bluetec’s 3.0L turbodiesel V-6, which continues ...