Setting the B-pillar air vents

1 B-pillar air vent
2 Thumbwheel for B-pillar air vent
To open/close: turn thumbwheel 2 to the
left or right.
See also:
Engine
Display messages
Possible causes/consequences and
Solutions
The coolant level is too low.
Add coolant, observing the
warning notes when doing so.
If coolant nee ...
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 ...
More power, lower consumption: the engines
An improvement of up to 31 per cent has been achieved in fuel consumption and
all Mercedes-Benz C-Class launch models will feature the ECO start/stop function
as standard. All the engine variants ...
