See also:

Belt height adjustment
You can adjust the seat belt height on the driver's seat and the front-passenger seat. Adjust the height so that the upper part of the seat belt is routed across the center of your shoulder. ...

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. ...

Working on the vehicle
WARNING When working on the vehicle, engage the electronic parking brake and shift the automatic transmission into park position P. Otherwise the vehicle could roll away which could result in ...