See also:

Derestricting the shift range
Briefly press the selector lever to the right towards D+. or Pull the right-hand steering wheel paddle shifter. The shift range is derestricted. ...

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 ...

Problems with your vehicle
If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to ...