Smart Key battery

See also:

Operating the on-board computer
The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using ...

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 ...

Brakes: with Hill-Start Assist and brake drying function
With the ADAPTIVE BRAKE, the new CLS offers an innovative braking system incorporating additional assistance functions for even greater comfort and safety. One example of this is the practical HOL ...