See also:

Redialing
The on-board computer saves the last names or numbers dialed in the redial memory. ► Press the button on the steering wheel to select the Telephone menu. ► Press the button to swi ...

Trailer power supply
The trailer socket of your vehicle is equipped at the factory with a permanent power supply. The permanent power supply is supplied via trailer socket pin 4. You can connect accessories wit ...

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. ...