When the new S-Class is launched, a six-cylinder in-line engine will be available, alongside a V8 engine with integrated starter generator (ISG) and a 48-volt onboard electrical system.
With the introduction of the integrated starter-generator (ISG) in the S-Class powered by the M 256 six-cylinder in-line engine in 2017, the 48 volt onboard electrical system celebrated its world premiere. The ISG is responsible for hybrid functions such as EQ boost and energy recovery, while allowing fuel savings that were previously reserved for high- voltage hybrid technology. The systematically electrified six-cylinder in-line engine in the new Mercedes-Benz S 500 4MATIC has an output of 429 hp and 384 lb-ft of torque. The electrified V8 biturbo engine in the new Mercedes-Benz S580 has an output of 469 hp and 516 lb-ft. Both variants are equipped with EQ Boost which provides a further 184 lb-ft of torque as well as up to an additional 21 hp for short periods.
Intelligent, forced induction that includes an electric booster compressor, as well as the integrated starter alternator (ISG) provide outstanding power delivery without turbo lag. In addition, the engine starts quickly and comfortably, making the start/stop function almost imperceptible to the driver.
Systematic electrification dispenses with the need for a belt drive for ancillary components at the front of the engine, which reduces its overall length. The slim design as an in-line engine, together with the physical separation of intake/exhaust, creates space for a near-engine emission control system. The 48 V on-board electrical system serves not only high power consumers, such as the water pump and air-conditioning compressor, but also the integrated starter-generator (ISG), which also supplies energy to the battery by means of highly efficient energy recuperation.
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