Switching the ECO function on/off
The ECO start/stop function switches the engine off automatically if the vehicle is stopped under certain conditions. When pulling away again, the engine starts automatically. You can switch the ECO start/stop function on and off using COMAND.
If you switch the ECO start/stop function off using COMAND, the function is switched on again automatically when you switch the ignition off and on again.

To switch the ECO start/stop function
on/off: select Vehicle in the main
function bar by sliding
and turning
the COMAND controller and press
to confirm.
The main area is active.
Select the ECO function by sliding
or
turning
the COMAND controller and
press
to confirm.
The ECO start/stop function is switched on and off alternately.
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.
...
Fuel requirements
Use only premium-grade unleaded gasoline. The octane number
should be at least 91. Details can be found on the gas pump. The octane number is
the average value of the Research Octane Number (RON) ...
Dialing a number from the phone book
You can enter new telephone numbers into
the phone book via the mobile phone (see the
separate operating instructions). If your
mobile phone is operational, you can select
and dial a number from t ...
