See also:

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. - ...

NECK-PRO luxury head restraints
If you have difficulty resetting the NECKPRO luxury head restraints, have this work carried out at a qualified specialist workshop, e.g. an authorized Mercedes- Benz Center. Remove resett ...

Selecting a main function
Initial situation You would like to change from the telephone menu to the vehicle settings, for example. Slide the COMAND controller and switch to the main function bar. Select Vehicle i ...