Rolling with the engine switched off

There is no power assistance for the steering WARNING
There is no power assistance for the steering and the brake when the engine is not running.
Steering and braking requires significantly more effort and you could lose control of the vehicle and cause an accident as a result.
Do not turn off the engine while the vehicle is in motion.

    See also:

    Storing and maintaining the currentspeed
    You can store the current speed if you are driving faster than 20 mph (30 km/h). ► Accelerate the vehicle to the desired speed. ► Briefly press the cruise control lever up 1 or down ...

    Overview
    Four years after the market launch of the W221 model series, Mercedes-Benz is presenting the 2010 Mercedes-Benz S-Class. Trailblazing innovations in the areas of comfort and drive engineering comb ...

    Important safety notes
    WARNING Do not turn off the engine before the vehicle has come to a complete stop. With the engine not running, there is no power assistance for the brake and steering systems. In this case ...