Mercedes-Benz GLB 2023 Operator's Manual page 148

146 Climate control
Keep the air inlet free of residue build-up
R
( page 289).
/
To open or close: hold the center of air
#
vent 1 and turn it to the left (open) or right
(closed) as far as it will go.
To set the airflow direction: hold the center of
#
air vent 1 and move it up or down or to the
left or right.
▌Adjusting the rear air vents
To open or close: hold the center of air
#
vent 1 and turn it to the left or right as far as
it will go.
To set the airflow direction: hold the center of
#
air vent 1 and move it up or down or to the
left or right.