Most powerful diesel car in Mercedes-Benz history: In the Mercedes-Benz S 350 d 4MATIC (fuel consumption combined: 5.5 l/100 km, CO2 emissions combined: 145 g/km) and S 400 d 4MATIC models (fuel consumption combined: 5.6 l/100 km, CO2 emissions combined: 147 g/km), the new in-line six-cylinder diesel engine makes its début.
It comes in two output levels with 210 kW (286 hp) and 600 Nm as well as 250 kW (340 hp) and 700 Nm. Even though it has noticeably more power than its predecessor, the new engine consumes over seven percent less fuel.
The special traits of the top-of-the-line engine in the diesel family include the stepped-bowl combustion process, two-stage turbocharging and for the first time the use of CAMTRONIC variable valve-lift control. Its design features a combination of aluminium engine block and steel pistons as well as further improved NANOSLIDE® coating of the cylinder walls.
The new six-cylinder diesel engine is designed to comply with future emissions legislation (RDE – Real Driving Emissions). All the components of relevance for efficient emissions reduction are installed directly on the engine. The integrated technology approach combining the new stepped-bowl combustion process, dynamic multi-way exhaust-gas recirculation and near-engine exhaust-gas aftertreatment, for the first time combined with variable valve-lift control, makes further reduced consumption with low emissions possible. Thanks to the near-engine insulated configuration, exhaust-gas aftertreatment has low heat loss and extremely favourable operating conditions.