523 hp to start, more to come
107.8 kWh usable from larger new battery pack
Mercedes-Benz might not be quite ready to reveal the entire EQS electric flagship sedan, but they are ready to give us a load more details about the car. That includes the platform, the battery, some of the powertrains, and more.
To start, the EQS, like the rest of Merc’s new generation electric luxury and executive segment vehicles (read: E and S-Class), will be on a platform designed specifically for EVs that can be scaled to multiple segments. The wheelbase, track, and even battery packs themselves can be scaled as needed to give Mercedes-Benz flexibility.
Battery power comes from one of two options, a larger pack with 107.8 kWh of usable power and another with 90 kWh. The chemistry behind them has reduced cobalt use to just 10 percent, also offering higher energy density and better performance. Mercedes-Benz says the battery is protected from damage under the vehicle and is fused to reduce the risk in case of an accident. The high voltage system can power off automatically if in danger, and the car will monitor for crashes even when sitting and charging, keeping the electrical safety components live. Mercedes’ confidence in the battery means a 10 year, 250,000 km warranty that covers loss of capacity.
Rear-drive will be standard on the Mercedes-Benz EQS, with 4Matic AWD available (though likely AWD will be standard in Canada). EQS 450 models will get 329 hp to the rear wheels while EQS 580 4Matic will offer 342 to the rear and 181 hp to the front thanks to a second motor for a total of 523 hp. Mercedes-Benz said there would be a more powerful performance model down the road, and that its 4Matic system checks torque 10,000 times a minute to adjust between front and rear axles for better traction and performance.
One-pedal driving will be possible, with braking regen recuperation of up to 290 kW. It’s enough power capture that Mercedes says rear-drive models are limited by traction rather than capacity. Any more risks locking the rear tires, while total regen is adjustable through steering wheel paddles.
To ensure S-Class isolation, Mercedes-Benz has gone even into the arrangements of the magnets inside the motors. The drive systems are covered with a foam mat and noise, vibration, and harshness filter, with an insulation layer for the inverter, acoustic foam in the bare body shell, and the engineers have mounted the front and rear power systems on elastomeric bearings for even more isolation. This is the kind of thing necessary when you lower the drag coefficient to just 0.2 and quiet down everything else in the vehicle.
Now all that’s left is for us to see the EQS, and then for it to go on sale later this year.