The Driving Assistance package comprises DISTRONIC PLUS, BAS PLUS, the PRE-SAFE® Brake as well as the Lane Keeping Assist and Blind Spot Assist functions. It is available for the S 400 Hybrid. The extended Driving Assistance package PLUS is optionally available for all other models. It incorporates the Active Lane Keeping Assist and Active Blind Spot Assist functions.

DISTRONIC PLUS proximity control helps the driver to maintain a specified (timed) distance from the vehicle in front when travelling at speeds of 0 to 200 km/h. Radar sensors permanently monitor this distance, regulate the road speed and can apply braking pressure if a critical situation is detected.

Operating at speeds between 30 and 250 km/h, Active Blind Spot Assist monitors the area behind the vehicle and the blind spots on the left and right. If a vehicle is detected in the monitored area, a warning signal appears in the relevant exterior mirror.

Implementing BAS PLUS Brake Assist in conjunction with the PRE-SAFE® brake system helps to avoid rear-end collisions more effectively. If radar sensors identify a potential collision and the driver presses the brake, BAS PLUS is primed to apply braking pressure in accordance with the available stopping distance.
If a potential collision is identified within the speed range 30 to 200 km/h and the driver fails to apply the brakes sufficiently early, the PRE-SAFE® brake system emits visual and audible signals. If the driver does not respond to this warning, independent partial braking is activated approx. 1.6 seconds before the calculated impact at a deceleration rate of up to 4m/s2. If the system categorises the situation as highly critical and there is still no reaction from the driver, an independent full brake application can be initiated automatically 0.6 seconds before what is considered an unavoidable impact.