See also:

Displaying service messages
Switch on the ignition. Press or on the steering wheel to select the Service menu. Press or to select the ASSYST PLUS submenu and press to confirm. The service due date a ...

Cleaning the steering wheel and gear orselector lever
► Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...

Problems with the SmartKey
Problem Possible causes/consequences and Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged. - ...