Mercedes has unveiled the new range-topping all-electric Mercedes-AMG CLA 45 4Matic+, powered by three axial-flux electric motors that deliver an impressive 680 PS (612 PS continuous output) and 1,759 Nm of torque. That’s more than 250 PS above the previous combustion-powered Mercedes-AMG CLA 45 4Matic, which produced 421 PS and 500 Nm.
Mercedes is bringing flagship AMG technology from the Mercedes-AMG GT 4-Door Coupe to the compact segment, including axial-flux motors and active aerodynamics.
Three Axial-Flux Motors and a Larger 94-kWh Battery
Built on the same MMA multi-energy platform as the standard CLA, the new Mercedes-AMG CLA 45 4Matic+ is powered by three Yasa axial-flux motors—two at the rear and one at the front—fed by a 94-kWh net NMC battery, which is larger than the 85-kWh net battery used in the CLA 250 and CLA 350 4Matic.
It is essentially the same battery as in the new GLC 400 4Matic EQ, which explains why charging power increases to 330 kW, compared with 320 kW in the other CLA variants.
The electric motors are integrated into a High Performance Electric Drive Unit (HP.EDU) on each axle.
The rear HP.EDU consists of two motors, each housed in its own casing and paired with a single-speed gearbox (the CLA 250 and CLA 350 4Matic use a two-speed transmission for the rear motor). Both rear motors are oil-cooled. The front HP.EDU comprises the front axial-flux motor and a single-speed gearbox with an integrated parking lock.
The two rear motors deliver a combined output of up to 680 PS, while the front motor contributes up to 360 PS. The system also features two silicon-carbide inverters, one for each axle.
In axial-flux motors, the electromagnetic flux runs parallel to the motor’s axis. Their core components are designed as flat discs, with the stator sandwiched between two rotors. This design, known as the H-configuration, enables highly efficient transfer of magnetic flux from the stator to the rotors. The two rear axial-flux motors are only 8 cm wide, while the front motor measures 9 cm in width.
The front motor acts as a boost motor and can be engaged or disengaged within a fraction of a second via the Disconnect Unit (DCU).
The AMG Performance 4Matic+ all-wheel-drive system is fully variable, allowing torque distribution both between the rear wheels (torque vectoring) and between the front and rear axles.
Thanks to its 800-volt architecture, the 94-kWh battery can be charged at up to 330 kW, replenishing from 10 to 80% in just 22 minutes. In only 10 minutes, enough energy can be added for 270 km of driving. Mercedes quotes a WLTP range of up to 640 km for the CLA Shooting Brake and up to 670 km for the CLA Sedan.



















