Changing the battery
You require a CR 2025 3 V cell battery.
•► Take the mechanical key out of the SmartKey
•► Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery tray cover 1 opens.
When doing so, do not hold cover 1 shut.
•► Remove battery tray cover 1.
•► Repeatedly tap the SmartKey against your palm until battery 3 falls out.
•► Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.
•► Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.
•► Insert the front tabs of battery tray cover 1 and then press to close it.
•► Insert the mechanical key into the SmartKey.
•► Check the function of all SmartKey buttons on the vehicle.
See also:
Digital speedometer
Press the or
button on the steering wheel to
select the Trip menu.
Press or
to select the digital speedometer.
...
New dimensions in energy efficiency
The performance of the Mercedes-Benz M-Class engines becomes particularly
apparent when looking at the reduced energy requirements coupled with a marked
increase in power output per litre for the ...
Deactivating/activating ESP® (except
AMG vehicles)
WARNING
ESP® should not be deactivated during
normal driving other than in the
circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
Do ...