Mercedes-AMG is extending its product range with the addition of three new models and at the same time introducing a new model designation: the 53-series models of the CLS, E-Class Coupé plus E-Class Cabriolet. They combine powerful performance with sporty style and high efficiency. At their heart lies a new, electrified 3.0-litre engine featuring twin-turbocharging by means of an exhaust gas turbocharger and an electric auxiliary compressor.
The 6‑cylinder in-line engine generates 320 kW (435 hp) and delivers maximum torque of 520 Nm. Its EQ Boost starter-alternator momentarily provides an additional 16 kW of output plus 250 Nm of torque and furthermore feeds the 48 V on-board electrical system. Other technical highlights include the AMG SPEEDSHIFT TCT 9G transmission and the fully variable all-wheel drive system AMG Performance 4MATIC+.
Distinguishing features which are common to the three new 53-series models comprise the twin-blade radiator grille, the front apron in A-wing design, the AMG-specific side sill panels, the rear apron with diffuser insert plus the round exhaust tailpipe trim elements in high-gloss chrome. The six-cylinder in-line engine is characterized by top-of-the-range performance and intelligent electrification. The EQ Boost starter-alternator combines a starter motor and alternator in a powerful electric motor and is fitted between the engine and transmission. This innovation as well as the intelligent charging via an electric auxiliary compressor and an exhaust gas turbocharger all have the same goal: to enhance the hallmark AMG performance and driving dynamics, while at the same time reducing fuel consumption and emissions. And this move has been a successful one: the AMG CLS 53 accelerates from zero to 60 mph in just 4.4 seconds (est.).
Supported by the EQ Boost starter-alternator when moving off, the electric auxiliary compressor builds up a high charge pressure without any delay, for a faster increase in torque for acceleration until the large exhaust gas turbocharger is deployed. As a result the 3.0-liter engine reacts extremely spontaneously and provides a highly dynamic response without turbo lag. An additional bonus is the high level of refinement of the six-cylinder in-line engine.
