The Mercedes-Benz ML350 BlueTEC was a diesel-powered variant of the W166 M-Class that debuted for the 2012 model year. The ML350 BlueTEC featured Mercedes' 4MATIC all wheel drive system, and featured the company's OM642 engine. This 3.0L turbocharged V6 diesel engine had an output of 254hp and 457 lb ft of torque. Drive was sent from the engine to the wheels via a 7 speed automatic gearbox. Production of the ML350 BlueTEC ended in 2015 when Mercedes renamed the M-Class to the GLE-Class.