See also:

Resetting to factory settings
For safety reasons, the Daytime Running Lights: function in the Lights submenu is only reset when the vehicle is stationary. – Press the or button on the steering wheel to select the Setting ...

Cleaning the steering wheel and gear or selector lever
Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...

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. ...