The Mercedes-Benz ML 250 CDI BlueTEC 4MATIC was a diesel-powered variant of the W166 M-Class that debuted for the 2012 model year. This variant featured Mercedes' 4MATIC all wheel drive system, and featured the company's OM651 DE 22 LA engine. This 2.1L 16V I4 Bi-turbo diesel engine had an output of 201hp and 369 lb ft of torque. Drive was sent from the engine to the wheels via a 7 speed automatic gearbox. Production of the ML250 CDI BlueTEC 4MATIC ended in 2015 when Mercedes renamed the M-Class to the GLE-Class.