Setting the airflow
Turn the SmartKey to position
2 in the
ignition lock.
To increase/reduce: press
the 
or
button.
You can use automatic climate
control to
set the airflow in the rear compartment
separately.
See also:
DEF refill bottle
DEF refill bottles can be obtained at many gas
stations or at an authorized Mercedes-Benz
Center. Refill bottles without a threaded cap
do not provide overfill protection. DEF may
leak if over ...
Showing/hiding the picture
To hide the picture: select Display OFF
in the system menu using the
buttons on the remote control and press
the button to confirm.
The picture is hidden.
To display the picture: press the ...
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 ...