Setting the center air vents

1 Fixed center air vent
2 Center air vent, right
3 Center vent thumbwheel, right
4 Center vent thumbwheel, left
5 Center air vent, left
To open/close: turn thumbwheels 3
and 4 up or down.
See also:
Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program offers technical help in the event of
a breakdown. Calls to the toll-free Roadside
Assistance Hotline are answered by our
agents 24 hours a day, 365 d ...
Low outside temperatures
DEF freezes at a temperature of
approximately 12 °F (–11 °C). The vehicle is
equipped with a DEF preheating system when
it leaves the factory. Winter operation is
therefore also guaranteed at ...
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-recirculati ...
