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. ...

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 ...

Activating/deactivating the residual heat function
It is possible to make use of the residual heat of the engine to continue heating the stationary vehicle for up to 30 minutes after the engine has been switched off. The heating time depends o ...