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  Mercedes-AMG CLS 53
 

  Article Image gallery (20) Specifications  
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Country of origin:Germany
Introduced in:2018
Introduced at:2018 NAIAS
Source:Company press release
Last updated:January 16, 2018
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Click here to download printer friendly versionMercedes-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 (combined fuel consumption: 8.5 - 8.4 l/100 km; combined CO2 emissions: 201 - 200 g/km). 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.

"With the new 53-series models we are extending our portfolio in a first step towards a hybridised future with a leading-edge combination of sporty design, performance and efficiency. The basis for this is a contemporary drive configuration in the form of a six-cylinder in-line engine with electric auxiliary compressor, EQ Boost starter-alternator and 48 V on-board electrical system. The very spontaneous response to accelerator pedal input, the precision and the design focusing on driving dynamics are hallmark features of AMG As such we are providing an additional lifestyle-oriented customer group with a further attractive offering from Affalterbach", explains Tobias Moers, Chairman of the Board of Management of Mercedes-AMG GmbH.

The six-cylinder in-line engine is characterised 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 CLS 53 4MATIC+ accelerates from zero to 100 km/h in just 4.5 seconds, and with the Driver's package achieves a top speed of 270 km/h. The combined fuel consumption is 8.4 l/100 km, and the combined CO2 emissions 200 g/km. (see table detailing technical data for figures for E-Class 53-series models).

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-litre 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.

The power for the 48 V on-board electrical system is generated by the EQ Boost starter-alternator. The conventional 12 V network is likewise supplied from the new network - using a DC/DC converter. Thanks to the 48 V battery, the overall battery capacity in the vehicle is increased, enabling more electrical energy to be made available - and therefore also allowing innovative functions to be introduced, for example. The 48 V on-board electrical system is therefore paving the way for further hybridisation. An additional advantage: the same power requires only a quarter of the current of a conventional system. The result is that the wiring can be thinner and therefore lighter, which indirectly contributes to saving fuel. The existing 12 V system supplies power to consumers such as lights, cockpit, infotainment displays and control units.

The EQ Boost starter-alternator is a key component of the 48 V system and not only serves as an alternator, but is also responsible for hybrid functions. This allows fuel savings that were previously reserved for high-voltage hybrid technology. For the first time, the EQ Boost starter-alternator is also responsible for idle speed control.

The hybrid functions include boost with 16 kW of output and 250 Nm of torque, recuperation, shifting of the load point, gliding mode and the virtually imperceptible restarting of the engine with the start/stop function.

Because the belt drive for ancillary components on the front edge of the engine is omitted, the installation length of the new six-cylinder engine is also significantly reduced compared with conventional six-cylinder engines. This creates space for an exhaust gas aftertreatment system mounted near the engine, which is therefore particularly efficient. The standard-fit particulate filter is the only part of the exhaust system that is under the floor.

Visually, too, the new 53-series models have a distinctive unique look. A distinctive feature common to the models is the twin-blade radiator grille in silver chrome, previously reserved for the V8 Performance models. Instead of the diamond radiator grille with individual pins, the grille in front of the central radiator now features a black lattice pattern.

The front apron in an A-wing design is equipped with black flics and a front splitter in silver chrome. The outer air intakes have two horizontal fins in silver chrome. AMG-specific side sill panels lend the 53-series models a more dynamic silhouette.

When viewed from the rear, it is not just the redesigned rear apron that stands out, but also the classic, round twin tailpipe trim elements in high-gloss chrome. The design of the sides of the mud flaps improves the aerodynamics at the rear: As a result this provides for better air flow around the wheel arches. The spoiler lip on the boot lid is painted in the body colour, but is optionally also available in carbon-fibre.

The front apron of the CLS 53 4MATIC+ features additional side air curtains: the air flows over them in a targeted manner, thereby improving the aerodynamics at the front and reducing the Cd figure. The front splitter connects seamlessly with the air curtain and reduces lift at the front axle. The outer lines of the radiator grille widen towards the bottom and lend the CLS a powerful appearance. Also making a contribution here are the sharply cut, narrow headlamps.

The exterior mirrors are positioned on the doors, as in the AMG GT models, ensuring an even more dynamic look.

The two-section tail lights visually reinforce the sense of width of the rear and as an additional practical benefit allow for the large boot opening. The broader track width combines better cornering with a perfect look thanks to the wheels being positioned further out. As standard the CLS 53 comes with 19-inch aerodynamically optimised light-alloy wheels, and as an option 20-inch wheels can be ordered.

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  Article Image gallery (20) Specifications