See also:

Please bear the following in mind
The engine oils are matched to the performance of Mercedes-Benz engines and service intervals. You should therefore only use engine oils and oil filters that are approved for vehicles with mai ...

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. ...

Switching on/off
The steering-wheel heating heats the leather areas of the steering wheel •► Make sure that the SmartKey is in position 2 in the ignition lock. •► To switch on/off: turn the lever i ...