In the development of innovative drive technologies Mercedes-Benz stays true to its role as innovation leader: The BlueEfficiency Power engines with BlueTec® 6 are convincing with their environmental compatibility and economy. Engine, transmission, drive axle and exhaust aftertreatment – the drive system components for the Tourismo all come from the same source and are perfectly aligned to each other.
The very latest state-of-the-art six-cylinder in-line engines
are hard at work in the rear. With 7.7 and 10.7 litre displacement, they are compact but still very high performance. Depending on the model, output ranges from 260 kW (354 hp) to 335 kW (456 hp). Low consumption and long maintenance intervals ensure a good overall economy. With the OM 470 engine when using as a coach, the first change of the soot particulate filter is only due after 360,000 kilometres, after which the change intervals are each after 240,000 kilometres. In cross-country and tourist traffic the oil in the OM 936 engine has to be changed every 90,000 kilometres, in the OM 470 engine every 120,000 kilometres.
Thanks to optimised aerodynamics with a Cd value of 0.33, a consumer management, proper elevation of the engine idle speed and optimised battery charge the consumption was reduced again. For further saving potential, the electronic aids of Predictive Powertrain Control and Eco Driver Feedback are optionally available.