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The EQS is the first all-electric luxury saloon from Mercedes-EQ. With it, Mercedes-EQ is redefining this vehicle segment. The EQS is also the first model to be based on the modular architecture for luxury and executive-class electric vehicles. Fusing technology, design, functionality and connectivity, the EQS delights both drivers and passengers. First models on the market will be the EQS 450+ with 245 kW and the EQS 580 4MATIC with 385 kW. The consumption figures according to WLTP: EQS 450+ electrical consumption combined 20.4-15.7 kWh/100 km, CO2-emissions 0 g/km; EQS 580 4MATIC electrical consumption combined 21.8-17.4 kWh/100 km, CO2-emissions 0 g/km.
As part of its Ambition 2039 initiative, Mercedes-Benz is working on offering a carbon-neutral new car fleet within 20 years from now. By as early as 2030, the company wants more than half the cars it sells to feature electric drive systems - this includes fully electric vehicles and plug-in hybrids. In many areas, Mercedes is already thinking about tomorrow today: the new EQS is designed to be correspondingly sustainable. The vehicles are produced in a carbon-neutral manner, and resource-saving materials such as carpets made from recycled yarn are used. This is because Mercedes-Benz considers the entire value chain, from development and the supplier network to its own production. Mercedes-Benz AG has had its climate protection targets confirmed by the Science Based Targets Initiative (SBTI).
With a great deal of meticulous detail work and on the basis of the Purpose design, the aerodynamicists, in close cooperation with the designers, were able to achieve a new cd best value of 0.20. This makes the EQS the most aerodynamic production car in the world. The operating range particularly benefits from this. It is also among the best in terms of quiet running. The very low wind noise level contributes significantly to this.
The EQS also currently sets a very good value for recuperation: Of the maximum deceleration in the DAuto recuperation program of 5 m/s², up to 3 m/s² is achieved by recuperation (2 m/s² by the wheel brakes). This allows decelerating to a standstill without using the brake pedal, while at the same time the range benefits from this recuperation strategy and the high recuperation power (up to 290 kW). Deceleration is also applied to detected vehicles ahead until they come to a standstill, for example at traffic lights. Intelligent energy recovery is situation-optimised with the aid of ECO Assist and acts with foresight, taking into account traffic conditions or topography, among other things. The driver also can set three energy recovery levels and the coast function via paddle shifters on the steering wheel.
With ranges up to 770 kilometres (WLTP) and an output of up to 385 kW the powertrain of the EQS also meets every expectation of a progressive saloon in the S-Class segment. A performance version with up to 560 kW is being planned. All EQS models have an electric powertrain (eATS) at the rear axle, while the versions with 4MATIC also have an eATS at the front axle.
The EQS marks the launch of a new generation of batteries with significantly higher energy density. The larger of the two batteries has a usable energy content of 107.8 kWh. That is around 26 percent more than the EQC (EQC 400 4MATIC: combined electrical consumption: 21.5-20.1 kWh/100 km; CO2 emissions: 0 g/km). The innovative battery management software, developed in-house, allows updates over the air (OTA). In this way, the energy management system remains up to date throughout the life cycle. In terms of the cell chemistry, the cobalt content of the cathodes has been reduced to ten percent.
The EQS can be charged with up to 200 kW at fast charging stations with direct current. Power for up to another 300 kilometres (WLTP) is recharged in just 15 minutes. At home or at public charging stations, the EQS can be conveniently charged with up to 22 kW with AC using the on-board charger. In Japan, bidirectional charging with the EQS will also be possible, i.e. charging in both directions. In addition, there are various intelligent charging programs that can be activated automatically depending on the location, and functions such as particularly battery-saving charging.
By means of high-quality certificates of origin, Mercedes-Benz guarantees that energy from renewable energy sources is fed into the grid for charging current sourced via Mercedes me Charge. This so-called Green Charging has been an integral part of Mercedes me Charge since 2021. But Mercedes me Charge can do even more: drive to the appropriate charging station, open the flap, plug in and the current starts flowing: this is how easy the charging process is with the EQS, thanks to Plug & Charge. Other highlights include the densest network of charging points, with more than 500,000 of them in 31 countries, including over 200,000 in Europe. With IONITY Unlimited, all European Mercedes me Charge customers can use the fast charging network free of charge for one year.
Navigation with Electric Intelligence plans the fastest and most convenient route, including charging stops, based on numerous factors and reacts dynamically to traffic jams or a change in driving style, for example. A new feature of the EQS is a visualisation in the infotainment system (MBUX Mercedes-Benz User Experience) showing whether the available battery capacity is sufficient to return to the starting point without charging. Charging stations along the route that have been added manually are given preference in the route calculation. Proposed charging stations can be excluded. The estimated charging costs per charging stop are calculated.
Although the EQS is a close relative of the new S-Class, it is built on an all-electric architecture. This completely new concept made a rigorous Purpose Design possible: with its one-bow lines and cab-forward design with fastback, the EQS is clearly distinguishable from vehicles with combustion engines even at first glance. The design philosophy of Sensual Purity, combined with Progressive Luxury, is reflected in generously sculpted surfaces, reduced joints and seamless transitions (seamless design).
The front is combined into a 'Black Panel' unit. Innovative headlights connected by a light band and the deep black radiator grille (Black Panel) form the distinctive face. The exclusive look of the Black Panel radiator grille with central Mercedes star can be enhanced still further: as an optional extra, they are also available with a three-dimensional star pattern. This so-called Mercedes-Benz pattern is available in conjunction with AMG Line Exterior or Electric Art Exterior. The design picks up on the original star of the Daimler-Motorengesellschaft, which was registered as a trademark in 1911.
The EQS is the first Mercedes to offer the option of activating completely new vehicle functions via over-the-air updates (OTA) in many functional areas. Available from launch: two special driving programs for young drivers and service staff, some little games and the demo program "The Best or Nothing". This means that, following the purchase and the initial new-car configuration, some of the features of the EQS can be adapted according to personal preferences. It will also be possible to unlock the rear axle steering with the larger steering angle of ten degrees. In addition to the classic purchase of individual functions, subscriptions, temporary activations and free test phases are also planned.
With ENERGIZING AIR CONTROL PLUS, Mercedes-Benz is taking a comprehensive approach to air quality in the EQS. The system is based on filtration, sensors, a display concept and air conditioning. The HEPA (High Efficiency Particulate Air) filter has a very high filtration level that enables it to trap fine particles, micro-particles, pollen and other substances that enter with the outside air. Sulphur dioxide, nitrogen oxides and odours are also reduced thanks to an activated charcoal coating. The HEPA filter has the "OFI CERT" ZG 250-1 certification in the area of viruses and bacteria. Using pre-entry climate control, it is also possible to clean the interior air before getting into the vehicle. The particulate levels outside and inside the vehicle are also displayed in MBUX. They can be viewed in detail in the dedicated Air Quality menu. If the quality of the outside air is low, the system can also recommend closing the side windows or the sliding sunroof.
As an option, the EQS has automatic comfort doors at the front and rear. When the driver approaches the car, first of all the door handles extend. As he or she approaches further, the driver's door opens automatically. Using MBUX, the driver is also able to open the rear doors, for example, to let in children in front of the school.
As an exceptionally intelligent vehicle, the EQS has up to 350 sensors, depending on the equipment. These record distances, speeds and accelerations, lighting conditions, precipitation and temperatures, seat occupancy as well as the driver's blink of an eye or the passengers' speech. This wealth of information is processed by control units that, controlled by algorithms, make decisions at lightning speed. So they are the brain, so to speak. The new EQS can expand its capabilities based on new experiences, because it is highly capable of learning thanks to artificial intelligence (AI).
The all-round sound experience in the EQS also makes the paradigm shift from a conventional to an electric car audible. A variety of soundscapes allows for an individual acoustic set-up. In combination with the Burmester® surround sound system, the EQS features the two soundscapes Silver Waves and Vivid Flux. As Sound Experiences they can be selected or switched off on the central display. Another soundscape can be unlocked using over-the-air technology. The interactive driving sound, which is reproduced via the sound system's loudspeakers in the interior, also moves within the respective sound world.
New to ENERGIZING COMFORT are the three ENERGIZING NATURE programs Forest Glade, Sound of the Sea and Summer Rain. These provide an immersive and impressively realistic on-board sound experience. These calming sounds were created in consultation with the acoustic ecologist Gordon Hempton. As with the other programs that form part of ENERGIZING Comfort, lighting moods and images are used to address other senses.
The standard rear-axle steering with a steering angle of up to 4.5 degrees contributes to the handy and dynamic impression of the EQS. Alternatively, rear-axle steering with a steering angle of up to ten degrees can be ordered or subsequently activated by an upgrade over the air (OTA). This enables a turning circle of 10.9 metres for the EQS, which is over five metres long. This corresponds to the turning circle of many models in the compact class. The respective rear-axle angles and trajectories are shown in the driving mode menu in the central display.
Thanks to powerful sensors that monitor the vehicle's surroundings, the parking systems can help the driver with manoeuvring in many areas. The driver can park and unpark the car via smartphone using Remote Parking Assist. With the pre-installation for the INTELLIGENT PARK PILOT, the EQS is prepared for Automated Valet Parking (AVP, SAE level 4). If equipped with the required optional extra and the corresponding Connect service (depending on the country), the vehicle has the technology on board to park and unpark fully automatically and without the driver in car parks equipped with AVP infrastructure, provided that national laws allow such operation.
The revolutionary DIGITAL LIGHT headlamp technology (standard from Advanced Plus equipment level) enables guide markings or warning symbols to be projected onto the road. New are the two assistance functions that display the start of the cooperative lane change and provide a warning/direction instruction if Lane Keeping Assist or Blind Spot Assist detect a hazard. DIGITAL LIGHT has a light module with three extremely powerful LEDs in each headlamp, whose light is refracted and directed by 1.3 million micro-mirrors. The resolution is therefore more than 2.6 million pixels per vehicle.
With the optional DRIVE PILOT, the EQS will be able to drive in conditionally automated mode at up to 60 km/h where traffic density is high or in tailbacks on suitable motorway sections, initially in Germany. By relieving the pressure on the driver, the system enables him or her to undertake secondary activities such as browsing on the internet or dealing with emails in the In-Car Office, and so gain extra time.
The MBUX Hyperscreen is the absolute highlight in the interior. This large, curved screen unit sweeps almost from A-pillar to A-pillar. Three screens sit under a cover glass and appear to merge into one. The 12.3-inch OLED display for the front passenger gives him or her their own display and control area. The entertainment functions are only available there while the car is being driven in accordance with the country-specific legal regulations. Mercedes-EQ relies on an intelligent, camera-based locking logic: if the camera detects that the driver is looking at the front passenger display, it is automatically dimmed.
With adaptive software, MBUX adapts completely to its user and makes personalised suggestions for numerous infotainment, comfort and vehicle functions. With the zero layer, the most important applications are always offered on the top level within the field of vision, according to situation and context.
The latest generation of driver assistance systems includes numerous driver support functions. New, for example, is the additional microsleep warning from ATTENTION ASSIST. It analyses the driver's eyelid movements through a camera on the driver's display (only in conjunction with MBUX Hyperscreen). The assistance display within the driver's display shows the operation of the driving assistance systems in a comprehensible full-screen view.
The principles of Integral Safety, in particular accident safety, apply regardless of the platform. Like all other Mercedes, the EQS therefore features a rigid passenger cell, special deformation zones and state-of-the-art restraint systems. PRE-SAFE® is standard. The fact that the EQS is based on an all-electric architecture also opened up new design possibilities for its safety concept. It meant, for example, that a favourable location could be chosen for the installation of the battery, in a crash-protected area in the underbody. And because there is no large engine block on board, the behaviour in a frontal crash could be modelled even better. In addition to the standard crash tests, the car's performance in various additional load situations was verified and extensive component tests carried out at the Vehicle Safety Technology Centre (TFS).
The exterior design
The EQS is the first all-electric premium saloon from Mercedes-EQ. The innovative and holistic design is based on a new vehicle architecture. It differs from vehicles with internal combustion engines at first glance: highest demands on function and aerodynamics are combined with innovative aesthetics in the unmistakable purpose design. Sensual Purity is reflected in generously modelled surfaces, reduced joints and seamless transitions (seamless design).
The sporty, low and slim front of the EQS forms a coupé-like silhouette with a bow (one bow) stretched tightly over the greenhouse. The A-pillar, which has been moved far forward, and the C-pillar at the rear generate space for a generous passenger compartment. Unique in this segment is the cab-forward design: the overhangs and the front-end assembly are short, the rear is smoothly rounded. The flush-positioned wheels measuring just under 75 cm in size and ranging from 19 to 22 inches, give the EQS a sporty character in concert with a muscular shoulder section.
The design philosophy of Sensual Purity is implemented with the clear, generous and surface-emphasising modelling. Seamless design is realised with reduced lines, precise joints and flowing transitions. Aerodynamics and formal aesthetics go hand in hand. The detailed design expresses innovation and exclusivity.
Black Panel front with Mercedes-Benz pattern on request
The front is combined into a 'Black Panel' unit. Innovative headlights connected by a light band and the deep black radiator grille (Black Panel) form the distinctive face. This makes the EQS the model for a new luxury-class generation from Mercedes-EQ. Three light dots, combined with the characteristic Mercedes eyebrow, form the striking daytime running light signet. LED High Performance headlamps are standard, DIGITAL LIGHT is available as an optional extra.
The exclusive look of the Black Panel radiator grille with central Mercedes star can be enhanced still further: in conjunction with AMG Line Exterior or Electric Art Exterior, they are also available as an optional extra with the Mercedes-Benz pattern, a three-dimensional star pattern. This references the original star of the Daimler-Motorengesellschaft company, which was registered as a trademark in 1911. In addition to its unique look, there is also a function behind the Black Panel surface: the various sensors of the driver assistance systems such as ultrasound, camera, radar and lidar (laser) are integrated there. Seamless design is particularly evident in the front-end design with its reduced gap pattern and an overlapping bonnet - it does away with the traditional separation between the front bonnet and wings.
Striking one-bow line
The aerodynamic silhouette with frameless, coupé-like doors and the high, arched beltline are independent design elements in the profile. The exterior mirrors sit on the beltline and are aerodynamically and aero-acoustically optimised. Chrome accents highlight design focal points like the one-bow line of the window graphics. High-quality painted contrasting surfaces can be found in the lower area of the vehicle.
Flush door handles are standard on all models. A panoramic sunroof is available as an option. It consists of two modules that together form a large glass surface and thus provide a lot of transparency and light in the interior.
The service flap for wiper fluid was integrated into the side of the left wing. The bonnet is only opened by the specialist workshop for maintenance work, such as replacing the interior air filter.
Lighting strip with LED lamps in 3D helix design
The round, coupé-like rear end is sensuously designed. In contrast to this is the rear spoiler with a sharp spoiler lip. The flush tailgate was integrated almost seamlessly with precise gaps. The rear camera is hidden behind the star, protected from dirt. The highlight at the rear are the innovatively designed LED lamps: Their insides have the shape of a curved and illuminated 3D helix. As at the front, the EQS also has a continuous light band at the rear - a distinguishing feature of Mercedes-EQ vehicles.
Paintwork with high-quality effect pigments
The EQ-specific exterior paints sodalite metallic and velvet brown metallic emphasise the one-bow line and give the EQS a dynamic appearance thanks to eye-catching pigments.
The design concept (exterior)
Although the EQS is a close relative of the new S-Class, it is built on an all-electric architecture. This completely new concept made a rigorous Purpose Design possible: with its one-bow lines and cab-forward design with fastback, the EQS is clearly distinguishable from vehicles with combustion engines even at first glance. This is further emphasised by the Black Panel front and the design of the front and rear lights. Highest standards on function and aerodynamics go hand in hand with innovative aesthetics. The design philosophy of Sensual Purity, combined with Progressive Luxury, is reflected in generously sculpted surfaces, reduced joints and seamless transitions (seamless design).
Electric cars can either be based on an existing (combustion engine) platform ("conversion design") or, like the EQS, on an all-electric architecture ("purpose design"). This complete and consistent new concept allows freedom in the arrangement of the components and a radically different design. This leads to advantages in packaging and ergonomics for the EQS. The purpose design with smooth underbody and mostly closed radiator shutter as well as the favourable basic shape were a good starting point for the flow optimisation. With a lot of meticulous detail work, the aerodynamicists, in close cooperation with the designers, were able to achieve the new best cd value starting from 0.20.
The roof line above the passenger compartment, the so-called greenhouse, is as taut as a bow ("one bow") in the EQS. A coupé-like silhouette is created in concert with the sportily low and slim front. This is underlined by the frameless doors and a high, curved beltline as an independent design element.
Cab-forward design ("cab placed in front")
The far-forward base of the A-pillar and the C-pillar at the rear create space in the EQS for a generously dimensioned passenger compartment. The overhangs and the front-end assembly are short, the rear is smoothly rounded.
Body creases have had their day at Mercedes-Benz. With reduced lines, precise gaps and flowing transitions, the designers have realised the new purism in the EQS in superior fashion. An exemplary element is the front-end design: the front bonnet overlaps the wings. This also reduces the number of visible panel gaps.
Black Panel front
The deep black surface of the grille ("Black Panel") defines the striking face of the EQS. The Black Panel unit at the front is a design feature of the Mercedes-EQ model family.
Abstracted, three-dimensional star pattern based on the original three-pointed star, the early trademark of Daimler Motorengesellschaft (DMG). The company had applied for a utility model for a three-pointed star in 1909; it was entered in the trademark registry on 9 February 1911. The three-pointed star was used immediately and after a short time was already one of the best-known trademarks in the world. The star first received a wreath in 1916. The pattern is used in several places in the EQS, for example, in the exterior as a special variant of the Black Panel front or in a light-alloy wheel design. In the interior, the Mercedes-Benz pattern can be found in the backlit trim elements with laser-cut or on the front passenger display as a digital decorative image.
The headlights have a striking daytime running light signet with three light dots and are connected to each other via a light band. This is just as defining for the EQ family as the lights at the rear: the rear lights with inner workings in the form of a curved 3D helix are also connected by a light band.
The new EQS under the magnifying glass: see, hear, smell, feel
The EQS can be experienced with almost all the senses. This elevates the all-electric top-of-the-range model to a new dimension in aesthetics and luxury. Seeing, hearing, smelling, feeling and tasting, these are the classic human senses. The new EQS appeals to the first four in many ways:
Over 100 million rods and cones are located in the retina of the human eye. These sensory cells enable us to see, for example, the features of the EQS that are revolutionary for the luxury class, such as the cab-forward design or the coupé-like "one-bow" lines with fastback. This clearly distinguishes the EQS from vehicles with combustion engines at first glance and is further emphasised by the Black Panel front and the design of the lights.
The designers had the mission and the chance to tread a completely new path in styling the interior. They made use of this freedom: the MBUX Hyperscreen is one of the highlights in the new EQS. The concave screen stretches out in front of the occupants from the left to the right A-pillar like an ocean wave. Besides the sheer size, the high-quality, detailed design also guarantees a "wow" effect. The MBUX Hyperscreen is integrated into the instrument panel in minimalist fashion. Only a thin silver shadow frame, a vent band and a narrow leather frame surround it. The vent band spans across the entire width at the top and is very slim at the same time. These extreme proportions, together with the glass wave of the MBUX Hyperscreen, create the avant-garde architecture of the cockpit. The calm and clear design of the door panels borrows from the interior design of modern living spaces. Avant-garde as well as traditional materials and colours give the interior a special atmosphere. Another visual highlight is the head-up display with augmented reality content.
People perceive sound waves with their ears. The listening impression of the EQS ranges between comfortable silence and an interactive, sensual sound experience. With a holistic sound production, the sound experts from Mercedes have made the paradigm shift from the combustion engine to the electric car acoustically perceptible. The EQS comes from the factory with two soundscapes: Silver Waves and Vivid Flux. They can be selected or switched off as sound experiences on the central display. Driver and passengers are already greeted acoustically when approaching the vehicle and when getting in. A corresponding aura sound also accompanies exiting and locking the EQS. The optional driving sound, which is reproduced by the speakers of the sound system in the interior, is also within the respective soundscape. The new ENERGIZING NATURE programs of ENERGIZING COMFORT also offer an impressively realistic listening experience. The soothing sounds called Forest Glade, Sounds of the Sea and Summer Rain were created in cooperation with nature acoustician Gordon Hempton. As with the other ENERGIZING COMFORT programs, other senses are addressed with lighting moods and images. Streaming services are another alternative to the new type of silence and interactive driving sound in the car: Mercedes-Benz has fully integrated the major music streaming services into the MBUX infotainment system with the "Online Music" service.
Scents are constantly being introduced when we breathe. Two systems report odours to the brain independently of each other: millions of receptors in the nasal mucosa and the ends of the trigeminal nerve. The EQS has something against unpleasant odours: its large HEPA filter (High Efficiency Particulate Air) not only cleans the outside air very effectively of fine dust, minute particles and pollen. Special activated charcoals in the HEPA filter and the interior air filter also filter out sulphur dioxide and nitrogen oxides as well as odours. Due to their pore structure, they have a very large inner surface area. Around 600 grams of activated charcoal are used in the HEPA filter of the EQS. The adsorption area is equivalent to about 150 football fields.
The active fragrancing of the EQS, which is part of the AIR-BALANCE Package, also appeals to the sense of smell. A new fragrance has been composed for the new top-of-the-range electric model: No.6 MOOD Linen - carried by the green note of a fig lying on a piece of linen.
The skin is the largest human sensory organ. With its help, we perceive touch and feel, for example, whether things are soft or hard, warm or cold, wet or dry. There is a lot to feel in the interior of the EQS: flowing leather surfaces with intricate seam patterns or dynamic perforation; the modern fine structure NEOTEX, which combines the look of nubuck leather and high-tech neoprene; trim elements made of open-pore real wood or in 3D relief look. The MBUX Hyperscreen's central and front passenger displays also offer haptic feedback. If a finger touches certain points on the touchscreen, the user feels pulses on the smooth surface that give the impression of a mechanical switch. Another operating aid is the so-called force feedback of both displays. Different levels of pressure on the glass change the response. For example, MBUX then jumps to another menu level. Finally, the up to ten different massage programs of the EQS can be felt not only with individual fingers, but with the whole body. They use the vibration motors in the seats and can also enhance the effect of the relaxing massage with heat based on the hot stone principle. For this purpose, the seat heating is combined with the inflatable air chambers of the multicontour seats.
Less resistance for more range and quiet: With a cd value from 0.20, it sets a new aerodynamic benchmark for production vehicles. This benefits the range. It is also among the best in terms of quiet running. A great deal of attention to detail lies behind the very good aerodynamic and aeroacoustic performance.
The purpose design with smooth underbody and mostly closed radiator shutter as well as the favourable basic shape were a good starting point for the flow optimisation. With a great deal of meticulousness, the aerodynamicists were able to achieve the new record cd value of 0.20 in close cooperation with the designers. The frontal area of the EQS is 2.51 m2. This results in an effective air resistance from 0.5 m².
The spread of the individual variants in terms of cd value is comparatively small - customers thus have a wide choice of models without having to consider the range. Mercedes also offers an aero wheel optimised in the wind tunnel in sizes 19, 20 and 21 inches.
Behind the very good aerodynamic performance is a lot of detail work. The EQS is the first representative of the new electric platform. This is why the invisible details, such as those on the underbody, were developed particularly intensively. Several thousand computational runs were performed in the virtual wind tunnel alone. Below are some details of the aero development:
For more than three decades, the aerodynamicists at Mercedes-Benz have been achieving top results. Currently, the A-Class Saloon (V 177) and the S-Class (V 223) are the worldwide record holders with a cd value of 0.22. The special simulation tools and the Mercedes-Benz aero-acoustics wind tunnel commissioned in 2013 make a decisive contribution to this. The EQS also received its fine-tuning there.
Extensive sealing and insulation measures reduce wind noise
In an electric car without the usual level of powertrain noise, wind noise is particularly noticeable by the occupants. That is why the aeroacoustic behaviour is particularly important. In this area, too, the new EQS is one of the very best vehicles in its class.
New solutions had to be found due to the concept-related lack of a partition between the interior and the boot and the aluminium alloys used in many places. Low-frequency noise, which can be perceived as reducing comfort, is prevented by filling numerous cavities in the body with acoustically effective foam.
It was possible to reduce the high-frequency components of the wind noise by specific measures on the door and window seals. Special attention was paid to the sealing of the transitions between the six side windows. The seals on the flush-fitting door handles, the window support and on the raised exterior mirrors are also noise-optimised.
A further contribution was made by the newly developed A-pillar with a specially shaped piece of trim at the transition to the windscreen. The development is supported by both modern flow simulations and external noise measurements using a special microphone array in the wind tunnel. The A-pillar designed in this way not only improves the aero-acoustics, but is also important for a low cd value and in keeping the windows free of dirt.
For further enhanced quiet running, the standard Acoustic Comfort Package has been developed. This includes additional insulation measures in the interior. Optionally, there are acoustically effective laminated glass panels at the side and rear. The additional acoustic glazing mainly reduces the wind noises even further, but also does so for noises coming in from the outside (for example, tyre noise or passing/oncoming vehicles). Particularly on longer journeys or motorway journeys, the driver remains more relaxed and the passengers feel more comfortable as a result.
On the optional panoramic roof, various wind deflection measures (wind deflectors, covers and seals with optimised geometry) ensure a high level of quiet running despite the large opening area of the roof.
The automatic comfort doors
As an option, the EQS has automatic comfort doors at the front and rear. When the driver approaches the car, first of all the door handles extend. As he or she approaches further, the driver's door opens automatically. Using MBUX, the driver is also able to open the rear doors, for example, to let in children in front of the school. With one-touch operation, the automatic comfort doors can be closed conveniently and with little effort. The sensors of the parking assistance systems are used for obstacle detection. Their integration into Blind Spot Assist (option) provides additional safety.
Hold the door? A matter of course for cavaliers or gentlemen of the old school. Or for the new EQS: Its automatic comfort doors make entry and exit particularly convenient. Because with this optional equipment, all four doors are electrically powered and open and close automatically. If desired, the EQS can even hold the driver's door open like a chauffeur. If the driver approaches the EQS from the side, the door handle first extends at a distance of approximately six metres. If the distance is only about 1.5 metres, the car unlocks and automatically opens the driver's door. This special welcome function can be activated or deactivated via MBUX.
The comfort doors are available in combination with the Premium Plus Package. The comfort doors can be operated in many ways: as usual via the door handles (inside and outside), by vehicle key, via the central display or the optional MBUX High-End Rear-Seat Entertainment System. In addition, the driver's door closes automatically when the brake pedal is depressed.
The comfort doors have obstacle detection. Opening is also monitored by Blind Spot Assist if it is active: If the system detects that another road user is approaching from behind, a vehicle exit warning is given. The doors only open when it is safe to do so.
To protect against damage, the car also uses data from the parking sensors. If the EQS has the automatic doors and the KEYLESS-GO Comfort Package Plus, ultrasound sensors monitor the surroundings when parking. In combination with the Premium Plus Package and the included Parking Package with 360° camera, observation is also provided by cameras in the exterior mirrors. The EQS then takes detected obstacles into account when opening the doors. Proximity sensors in the doors are also active when the vehicle is stationary. They also scan the environment while opening.
There is an electric actuator on the catch strap in each door. The doors are then swung open and closed in a controlled manner on command from the door control panel. The comfort doors were required to undergo extensive testing in true Mercedes-Benz fashion. Before being made to demonstrate their operating convenience and reliability in overall vehicle trials, they were tested on various test rigs including the climatic chamber. Naturally their acoustic properties and safety functions were also thoroughly tested.
Nonstop from Munich to Berlin or from Oslo to Stockholm: with an operating range of up to 770 kilometres (WLTP) and an output of up to 385 kW, the powertrain of the EQS also meets every expectation of a progressive saloon in the S-Class segment. All EQS models have an electric powertrain (eATS) at the rear axle, while the versions with 4MATIC also have an eATS at the front axle. In the 4MATIC models, the Torque Shift function ensures intelligent, continuously variable distribution of drive torque between the rear and front electric motors and thus the use of the most efficient eATS in each case. The modular powertrain concept ensures high overall performance and long range.
The modular drive concept allows a wide range of maximum total drive powers from 245 to 385 kW. A performance version with up to 560 kW is being planned. Depending on the size of the battery and the vehicle equipment and configuration, WLTP ranges of up to 770 kilometres are possible.
The electric motors on the front and rear axles are permanently excited synchronous motors (PSM). With the PSM, the rotor of the AC motor is fitted with permanent magnets and therefore does not need to be supplied with power. The magnets - and thus the rotor - follow the rotating alternating current field in the winding of the stator. In the EQS, Mercedes-Benz uses a so-called pull-in winding for a particularly strong magnetic field. The engine is said to be synchronous, because the rotor turns at the same rate as the magnetic field of the stator. The frequency is adjusted in the power electronics convertors to the speed requirements of the driver. The advantages of this design include high power density, high efficiency and high power constancy. The motor on the rear axle is particularly powerful due to its six-phase design: It has two windings with three phases each.
Cooling: sophisticated thermal concept for high load capacity
Consistently high performance and multiple accelerations without a drop in power characterise the drive philosophy of the EQS. This includes a sophisticated thermal concept with some special features. A so-called water lance in the shaft of the rotor cools it from the inside. Other cooling elements in the cooling circuit are fins on the stator, a needle-shaped pin-fin structure on the inverter and a transmission oil cooler. This also brings more efficiency during cold driving, because the heat exchanger then serves to heat the transmission oil and thus reduces friction in the transmission.
Intelligent recuperation: one-pedal driving to a standstill
The EQS offers several variants of energy recovery: In this process, the high-voltage battery is charged by converting the mechanical rotary motion into electrical energy during push or braking operation. The driver can manually select the deceleration in three stages (D+, D, D-) and the coast function via shift paddles behind the steering wheel. Additionally, there is DAuto. In this programm, up to 5 m/s² deceleration is achieved, 3 m/s² of which is due to recuperation (2 m/s² via the wheel brakes). The recuperation power of the all-wheel drive versions is up to 290 kW, and for rear-wheel drive vehicles, traction (and thus driving stability) is the limiting factor.
ECO Assist also offers situation-optimised energy recovery - deceleration is so strong or weak that it ultimately results in the most efficient driving style. Recuperative deceleration is also used as far as possible approaching detected vehicles ahead until they come to a standstill, for example at traffic lights. The driver does not need to press the brake pedal for this - pure one-pedal driving.
4MATIC models: infinitely variable distribution of the drive torques
In the models with 4MATIC, the Torque Shift function intelligently and continuously distributes the drive torques between the front and rear axles. It thus ensures the use of the most efficient eATS in each case, as these can be regulated independently of each other. The required drive torque at the wheels is checked 10,000 times per minute and set if necessary: The reaction is thus much faster than would ever be possible with a mechanical all-wheel drive.
Extensive testing: special test benches at Mercedes-Benz
On its way to series production, the EQS covered around five million test kilometres, including at the Test and Technology Centre (PTZ) in Immendingen. The systematic validation of the overall vehicle serves to guarantee the high quality standards and is one of the extensive measures in the development process of every Mercedes-Benz model series. Stations included tough winter tests in Scandinavia, chassis and powertrain tests on proving grounds, public roads and on the high-speed test track in Nardò, as well as integrated complete vehicle heat testing in Southern Europe and South Africa. The EQS was also on the road for test drives in China, Japan, Dubai and the USA.
In the process, it completed the same demanding testing programme as any other vehicle that can proudly wear a star. In addition, a number of tests were carried out specifically for electric cars, covering important development priorities such as range, charging and efficiency. Of course, special attention was paid to the e-drive and the battery.
In addition, there were several million test kilometres on a total of more than two dozen test benches in Stuttgart-Untertürkheim and at the development site in Nabern. Testing takes place on pure eATS test benches, where the current comes from a special direct current source, a so-called battery simulation, and on eDrive test benches: Here, the testing also includes the battery and the complete charging components of the vehicle. The track profile/test bench profile was modified compared to the combustion engines, for example to take into account the torque load on the transmissions in both directions - a special load case determined by the high recuperation power. In addition, there is the special hot/cold testing of the power electronics.
The noise and vibration comfort
The EQS is the all-electric member of the S-Class family. This means that it must meet the highest expectations for acoustic comfort. The specifications therefore already defined a number of measures, including special acoustic foams in some of the profiles of the shell as well as the encapsulation of the eATS at the front and rear. The drive units are doubly insulated using rubber mounts. At the front axle this takes the form of a supporting frame, with a subframe at the rear axle.
Starting with the design of the electric powertrains (eATS), NVH (noise, vibration, harshness was a priority. The magnets inside the rotors are arranged in an NVH-optimised way (so-called sheet metal cut). This also reduces the use of rare earths. The shape of the winding, the so-called stator tilt, also supports vibration comfort, especially at low speeds. In relation to the permanent magnets of the rotor, the coils of the stator are obliquely wound. Otherwise, what is known as cogging torque could occur. This would lead to slight but unpleasant vibrations when driving very slowly.
In addition, the eATS have a special foam mat all around as an NVH cover. The lid of the inverter has a sandwich construction of three metal and plastic layers. The eATS are doubly decoupled from the body via elastomer bearings: At the front axle opposite a supporting frame and this against the body, and a rear axle carrier.
Highly effective spring/mass components provide continuous sound insulation from the cross-member under the windscreen to the floor of the boot. Acoustic foams are inserted into many carriers as early as the shell construction stage. Because the full-area main floor under the high-voltage battery is a component with a potentially high noise component, a new insulation part is used there. A foam sealed in foil, enclosed in the seal of the battery lid, is clamped between the battery and the floor and prevents excitation. In addition, the main floor is designed with beads for NVH reasons. These prevent resonance of the surface and thus the occurrence of a corresponding structure-borne sound. Two acoustic dividers in the very large tailgate reduce boom noise. These could be caused by roadway excitations and are favoured by the large volume of the cab including the bulkhead-free luggage compartment.
The traction battery
Modular, efficient and innovative: The lithium-ion battery system of the EQS can be flexibly equipped with pouch or hardcase cells. This scalability enables the realisation of different range and performance variants. Depending on the variant, sufficient energy can be stored for ranges of up to 770 kilometres according to WLTP. The innovative battery management software, developed in-house, allows updates over the air (OTA). The energy management of the EQS is therefore kept up to date throughout the life cycle.
Battery development is a decisive factor in Mercedes-Benz's electrification strategy. After all, the battery is the heart of an electric car and makes a decisive contribution to, among other things, the range and thus the driving characteristics of the electric vehicle. The EQS marks the launch of a new generation of batteries with significantly higher energy density. The largest battery has a usable energy content of 107.8 kWh (according to WLTP). That is around 26 percent more than the EQC (EQC 400 4MATIC: combined electrical consumption: 21.5-20.1 kWh/100 km; CO2 emissions: 0 g/km). The new batteries set standards in terms of performance, efficiency and charging capacity.
They also meet the high Mercedes requirements in terms of safety, durability and sustainability. Mercedes-Benz issues a battery certificate for its high-voltage batteries and thus a performance promise to customers: A term of 10 years or 250,000 kilometres with a remaining capacity of 70 percent.
Comprehensive battery expertise
The highly efficient batteries were developed entirely in-house by the team of experts at the Mercedes-Benz Battery Centre of Competence. The software for the intelligent management system was also developed and programmed in-house. The batteries are produced in the Hedelfingen plant section at the Stuttgart-Untertürkheim site.
The scalability of the battery system enables the realisation of different range and performance variants. Different battery sizes are available: Depending on the output and drive system layout (rear-wheel drive or 4MATIC), a lithium-ion battery with either 10 or 12 cell modules is installed, which are realised with different cell types in the form of pouch and hardcase cells. The usable energy content is 90 or 107.8 kWh.
For both battery variants, a major step has been achieved in terms of the sustainability of the cell chemistry: The optimised active material consists of nickel, cobalt and manganese in a ratio of 8:1:1. This reduces the cobalt content to less than ten percent. The continuous optimisation of the recyclability is part of Mercedes-Benz's holistic battery strategy. The aim is to be able to dispense entirely with materials such as cobalt through the use of innovative post-lithium-ion technologies.
Intelligent operating strategy for maximum range
The battery is integrated into the intelligent thermal management of the EQS. If the intelligent navigation with Electric Intelligence is activated, the battery is preheated or cooled as needed while driving to reach the optimal temperature for efficient charging at the charging point. The desired temperature range of the battery is achieved with the aid of the cooling circuit and a PTC (Positive Temperature Coefficient) booster heater integrated into it.
Complex protection concept for safety
In principle, Mercedes-Benz AG applies very high safety standards to all its models. This means that, in many cases, internal Mercedes-Benz safety standards exceed legal requirements. Especially the crash-related requirements are aligned to the so-called real-life safety philosophy. In the process, findings from internal accident research are incorporated into the development specifications. Alongside verification of crash behaviour, all Mercedes-Benz vehicles undergo additional component tests at system level.
The battery sits in a crash-protected area in the underbody, embedded in the body shell structure including an extruded aluminium profile on the side. In extrusion, a heated block of metal is forced through dies and transformed into a continuous profile, which is then cut to fit. In this way, highly complex profiles can be produced that are precisely tailored to the requirements. The housing with energy absorbing structures at the front and side as well as a rigid, double-walled base plate provide additional protection for the modules. The test criteria include, among other things, the battery behaviour under shock load and in the event of foreign object penetration. Overheating and overcharging were also simulated and tested. In addition, there is a separate, multi-level safety system for everyday operation. This includes, for example, temperature, voltage or insulation monitoring as a continuously monitoring safety system. If an error occurs, the battery is switched off.
Production: Battery systems from Hedelfingen
The batteries for the Mercedes-EQ electric vehicles are supplied by the global battery production network with factories on three continents. Local battery production is a key success factor for Mercedes-Benz's electric initiative.
The battery systems for the EQS are produced in the Hedelfingen plant section at the Stuttgart-Untertürkheim site. Absolute precision is required in their manufacture. The battery systems consist of a large number of components, including up to 12 cell modules and the so-called EE compartment for intelligent integration of the power electronics. It is assembled at the Mercedes-Benz location in Berlin.
The Mercedes-Benz Hedelfingen plant will have carbon-neutral production from 2022. The Hedelfingen plant is a prime example of the transformation of production sites as part of the Mercedes-Benz Electric First strategy. The efficient and seamless integration of battery production alongside existing transmission production transforms Hedelfingen's traditional role as a site for conventional powertrain components into an important part of the company's global battery production network.
The suppliers of the battery cells have undertaken to use electricity from renewable energy sources such as hydropower, wind and solar energy in the production of the battery cells. The supplier network accounts for a substantial share of value creation, and is therefore of decisive importance for the decarbonisation targets. Already, around half of all suppliers have signed a corresponding declaration of intent. Because of the higher energy requirements in the production of all-electric vehicles, the supplier network is a crucial component in achieving Mercedes-Benz's climate targets.
The charging functions
Three charging programs are offered in the EQS - Standard, Home and Work. In these, parameters such as departure time, air conditioning and maximum charge level can be preset. The Home and Work charging programs can be activated based on location. This means that they are switched on automatically as soon as the vehicle is parked at a charging point at the positions stored in the system. The user is informed about this in MBUX.
The EQS also has these intelligent charging functions:
The charging components of the EQS
A latest-generation charging system sits above the rear axle of the EQS. It can be used to charge the battery via the public power grid with single-phase or three-phase alternating current and an optional charging capacity of up to 22 kW. In addition, intelligent wallboxes from national partners are available to customers in the individual markets. Mercedes-Benz also offers an installation service for these wallboxes. This includes a preliminary check of the installation conditions, a detailed consultation and of course the installation.
A DC box with a charging capacity of up to 200 kW is fitted on board for (fast) charging via direct current. High charging currents can be maintained for a long time through temperature and charging management. Power for up to another 300 kilometres (WLTP) is recharged in just 15 minutes.
Navigation with Electric Intelligence
As far as Navigation with Electric Intelligence is concerned, the name says it all. Because it plans the fastest and most convenient route, including charging stops, based on numerous factors and reacts dynamically to traffic jams or a change in driving style, for example. In the EQS, Navigation with Electric Intelligence is smarter than ever: this is how the estimated charging costs per charging stop are calculated. Furthermore, the customer can edit the planned routes individually by adding in preferred charging stations along the route or excluding proposed charging stations.
While a conventional range calculator lives from past data, the Navigation with Electric Intelligence system looks into the future. The energy demand is computed for the calculation of the route. The topography, route, ambient temperature, speed, heating and cooling requirements are all taken into account. Further factors include the traffic situation along the planned route, as well as the available charging stations to be found there, their capacity and payment functions. Calculation takes place in the Cloud and is combined with on-board data.
The customer does not necessarily always have to take on a full charge, but will be given a specific recommendation as to the required charging time at the charging station. The charging station stops will be planned in the way that is most favourable for the overall travelling time: Under certain circumstances, two short charging stops with a higher charging power can be more advantageous than charging once for a long time. In addition, Electric Intelligence navigation automatically adjusts the vehicle's charging settings and optimises them for fast charging along the route.
A new feature of the EQS is a visualisation in MBUX of whether the available battery capacity is sufficient to return to the starting point without charging. Charging stations along the route that have been added manually are given preference in the route calculation. Proposed charging stations can be excluded. The estimated charging costs per charging stop are calculated.
If there is a risk of not reaching the destination or the charging station with the set settings, Active Range Monitoring issues the prompt to activate ECO driving functions. In addition, the driving speed for reaching the next charging station or the destination is calculated and displayed in the speedometer. Under the menu item "Range", the EQS driver can switch off various energy consumers to increase the range and activate the ECO driving functions to support a more efficient driving style.
The EQS is the first Mercedes-Benz to offer the option of activating completely new vehicle functions via over-the-air updates (OTA) in a number of functional areas. Available from launch: two special driving programs for young drivers and service staff, little games and the demo program "The best or nothing". This means that, following the purchase and the initial new-car configuration, some of the features of the EQS can be adapted according to personal preferences. This also includes the release of the rear-axle steering with a ten-degree steering angle. In addition to the classic purchase of individual functions, subscriptions, temporary activations and free test phases are also planned.
Updates overnight and new functions the next morning, just like on a computer - the OTA technology in the EQS makes it possible. The explicit consent of the user is always a precondition for OTA updates. Mercedes-Benz relies on mobile radio technology and the communication module installed in the vehicle because of the high security standard.
The additional driving sound "Roaring Pulse" is available in the Mercedes me Store. This extroverted sound is reminiscent of powerful elements such as large-volume combustion engines, turbines and the forces of nature. There will also be small entertaining games such as a number puzzle or a Mercedes-Benz quiz. You can even play games with each other on the front passenger display and the screens in the rear in multi-player mode.
"The best or nothing" program can also be activated via OTA. There the EQS introduces itself. The various vehicle functions are shown in a video, and special features such as ambient lighting or seat massage can be experienced directly.
With two digital security functions, the use of the EQS can be adapted to specific target groups:
The main user activates and deactivates these programs via their personal profile, which is protected with a PIN and/or biometric recognition, or conveniently via the Mercedes me App from the smartphone. The modes can only be activated with a restart.
Independently of these new functions, it is also possible to update the majority of the control units in the vehicle OTA for service and maintenance purposes. This technology saves the customer time, as they do not need to visit a workshop for this purpose. Furthermore, many functions of their vehicle remain up to date throughout its lifetime.
The interior design
The EQS is the luxurious and avant-garde top-of-the-range model from Mercedes-EQ. With this completely new type of vehicle, the designers had the mission and the opportunity to take a completely new approach to the interior design as well. They made use of this freedom and, in addition to the MBUX Hyperscreen, relied on consistent digitisation for many other elements.
The EQS is the first Mercedes-EQ to be based on an all-electric platform. For the designers, this went hand in hand with the vision of consistent digitisation of the interior. The optional MBUX Hyperscreen impressively implements this vision: the entire instrument panel is one ultimate widescreen. This determines the aesthetics of the entire cockpit and interior. The real glass appears to drape itself in three dimensions over the entire width of the vehicle like a wave - a unique feature in automotive construction to date.
The high-resolution screens merge seemingly seamlessly under the shared glass cover. The graphic appearance of their MBUX content is tailored to each other. The MBUX Hyperscreen is integrated into the instrument panel in minimalist fashion. The MBUX Hyperscreen is surrounded only by a thin silver shadow frame, a vent band and a narrow leather frame, reminiscent of the lower volume body of classic instrument panels.
The vent band spans across the entire width at the top and is very slim at the same time. These extreme proportions, together with the glass wave of the MBUX Hyperscreen, create the avant-garde architecture of the cockpit.
The dominant outer vents have a turbine design. They deliberately play on the theme of hyperanalogue through the contrast between high-tech precision mechanics and digital, glass display world. The intricately designed turbine blades distribute the airflow efficiently.
The front section of the centre console joins the instrument panel and stands freely in space. It is a visual reference to the new drive architecture - due to the electric powertrain, no transmission tunnel is necessary. Flowing leather surfaces with intricate seam patterns create a lot of storage space in combination with a large cover made of real wood. The visual impression is both modern and luxurious.
The base model without MBUX Hyperscreen has a slightly different centre console. There is a soft armrest in the rear section. It is first visually interrupted before being transitioned into the floating central display.
The design of the door panels borrows from the interior design of modern living spaces. Doors and their centre panels emerge from behind the MBUX Hyperscreen to span the space. A surface-mounted modular body floats like a sideboard in front of the door panel. It accommodates all necessary door elements such as armrest, door module, pull handle and map pocket. Circular ambient lighting completes this floating, avant-garde aesthetic in the dark.
The Electric Art design and equipment line includes the comfort seats. Despite their simplicity of design, they captivate with their sculptural beauty. Wrap-around surfaces in the side bolsters create the body support and stand in stark contrast to the seat centre panel. It has a sophisticated seam pattern similar to a fan palm.
In combination with the AMG Line interior, the EQS is fitted with the sports seats. They are characterised by a slim and monolithic shape. The seat surfaces are designed in such a way that they give the impression of draped-o