Activating/deactivating airrecirculation mode
You can deactivate the flow of fresh air if unpleasant odors are entering the vehicle from outside. The air already inside the vehicle will then be recirculated.
The operation of air-recirculation mode is the same for all control panels.
WARNING
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press the
button.
•► Turn the SmartKey to position 2 in the ignition lock.
•► To activate: press the
button.
The indicator lamp above the 
button
lights up.
In the event of high pollution levels19 or at
high outside temperatures, airrecirculation
mode is automatically
activated. When air-recirculation mode is
activated automatically, the indicator lamp
above the button does not light up.
Outside air is added after about 30 minutes.
•► To switch off: press the
button.
The indicator lamp above the button
goes out.
Air-recirculation mode deactivates automatically:
- after approximately five minutes if outside temperatures are less than about 41 °F (5 °C)
- after approximately five minutes if cooling with air dehumidification is deactivated
- after approximately 30 minutes if outside temperatures are over about 41 °F (5 °C)
See also:
Purity
Assuring the purity of DEF is particularly
important with respect to avoiding
malfunctions in the exhaust gas
aftertreatment system.
If DEF is pumped out of the DEF tank, e.g. during repair wor ...
Storing settings
With the memory function, you can store up
to three different settings, e.g. for three
different people.
The following settings are stored as a single
memory preset:
• position of the seat, b ...
Fast forward/rewind
Slide and hold the COMAND
controller until the desired position has
been reached.
You see the navigation menu. ...