General notes
If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged.
•► Check the battery in the SmartKey and replace it if necessary.
•► Unlock the driver's door using the mechanical key.
•► Lock the vehicle using the mechanical key.
•► Have the starter battery and the battery contacts checked at a qualified specialist workshop.
If the SmartKey is faulty, contact Roadside Assistance or a qualified specialist workshop.
See also:
Please bear the following in mind
At the onset of winter, have your vehicle
winterproofed at a qualified specialist
workshop, e.g. at an authorized Mercedes-Benz Center.
Observe the notes in the "Changing a wheel"
sec ...
Copying data to a storage medium
Insert an SD card into the SD card slot
or
Insert a USB stick into the socket on the
side in the glove box.
Select Vehicle in the main function bar by
turning the COMAND controller and
p ...
Setting the temperature
Different temperatures can be set for the driver's and front-passenger sides.
Turn the SmartKey to position 2 in the ignition lock.
To increase/reduce: turn controls 1 and 8 clockwise or cou ...