See also:

Vehicles with automatic transmission
Apply the electric parking brake. Shift the transmission to position P. Using the SmartKey Turn the SmartKey to position 0 in the ignition lock and remove it. The immobilizer is activated. ...

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, ...

Safety
Mercedes-Benz's Electronic Stability Program, antilock brakes, front and rear side-impact airbags, and side curtain-type airbags are standard. ...