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As standard the EQA features a comfort suspension with steel springs, and all versions have a multi-link rear suspension. The suspension with Adaptive Damping System (option) offers the driver the possibility of choosing their preferred damping characteristics, thus enhancing their comfort noticeably.

The EQA has a MacPherson front suspension. The wheels are guided by control arms below each wheel centre, the MacPherson struts and two tie rods. The wishbone is forged from aluminium. This reduces the unsprung masses. The steering knuckles are made of cast aluminium.

All EQA models have a sophisticated four-link rear suspension. The three transverse links and one trailing arm at each rear wheel are configured for maximum driving stability, ride comfort and longitudinal/lateral dynamics. The rear axle is mounted on a subframe isolated from the body shell by rubber bushings so that fewer vibrations are transferred from the suspension to the body (see section on "Noise and vibration comfort").

Two suspension variants: optional Adaptive Damping System

The EQA comes as standard with a comfort suspension with steel springs. A suspension with Adaptive Damping System is available as an option. This enables the driver to choose the preferred damping characteristics. A valve in each of the four shock absorbers is electronically actuated to control the oil flow. The damping characteristics are changed by regulation of the oil flow. The Comfort programme comes into its own especially when travelling at low speeds, for example on a cobblestone road.

Several sensors constantly monitor the suspension status, driving situation and driving style of the driver, and adjust the damping at each wheel. They also provide information about the drive system, recuperation and braking system, steering, and the driving assistance systems. The damping is specifically stiffened during acceleration, braking or steering manoeuvres to reduce pitching and body roll, and to improve wheel loads and the ground contact of the tyres.

More traction if desired: 4MATIC all-wheel drive

The more powerful versions of the EQA will be fitted with an additional electric powertrain (eATS) at the rear axle and therefore feature all-wheel drive. The 4MATIC system uses Torque Shift: the distribution of the torque is adjusted 100 times per second as required on a continuously variable basis between the two electric units at the front and rear axles. If the driver does not call for the full output, the motor that is not needed will be completely switched off in order to reduce the base load. In a low load range therefore, the reliance will be on the rear axle with the more efficient, permanently excited synchronous motor (PSM). Higher performance requirements will be met through the additional activation of the asynchronous motor (ASM) on the front axle.

In order to ensure maximum traction and driving stability even on snow and ice, the operating strategy reacts to spinning wheels and adjusts the torque distribution accordingly. Since the two motors are controlled independently of each other, a loss of traction on one axle does not preclude torque being sent to the respective other axle - much as with a conventional central differential lock.
 
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