For the first time, the AMG 4.0-litre V8 biturbo engine of the Mercedes-AMG GLS 63 4MATIC+ is equipped with an integrated EQ Boost starter-alternator. It combines a starter motor and an alternator in a single, powerful electric motor compactly integrated between the engine and the transmission.
The briefly and additionally available 16 kW (22 PS) of output and 250 Nm of torque allow particularly fast sprints from a standstill and intermediate sprints, e.g. when overtaking. Moreover, this innovative component not only supplies the 48-volt electrical system, and is not only used as a power generator, but also performs hybrid functions. These include boost, recuperating, load point shift, gliding and the virtually imperceptible restarting of the engine with the start/stop function. For the first time, the EQ Boost starter-alternator is also responsible for idle speed control. This allows fuel savings that were previously reserved for high-voltage hybrid technology.