See also:

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. ...

Bead
The tire bead ensures that the tire sits securely on the wheel. There are several steel wires in the bead to prevent the tire from coming loose from the wheel rim. ...

Redialing
The on-board computer saves the last names or numbers dialed in the redial memory. – Press the or button on the steering wheel to select the Tel menu. – Press the button to switch to the r ...