Setting the glove box air vent
When automatic climate control is activated, the glove box can be ventilated, for instance to cool its contents. The level of airflow depends on the airflow and air distribution settings.
Close the air vent when heating the vehicle.
At high outside temperatures, open the air vent and activate the "cooling with air dehumidification" function. Otherwise, temperature-sensitive items stored in the glove box could be damaged.

1. Air vent thumbwheel
2. Air vent
•► To open/close: turn thumbwheel 1 clockwise or counter-clockwise.
See also:
Vehicle equipment
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences a ...
Brilliant finish: the rear assembly of the M-Class
The rear area too of the M-Class also protects the sturdy passenger
compartment in crash situations thanks to specific deformation work, therefore
minimising the loads on the occupants. A special ...
Setting the temperature
Climate control climate zones
You can select different temperature settings
for the driver's and front-passenger sides as
well as for the left and right sides of the rear
compartment and the ...
