Mercedes-Benz A Series Owner's Manual page 135

Controls
Air conditioning
i
Notes and recommendations on optimum
air conditioning:
Activate the air conditioning by turning
R
control knob 3 clockwise to the desired
position (except position 0).
Only use the "demisting" function until
R
the windscreen is clear again.
Only use the "air-recirculation mode"
R
briefly, e.g. when there are unpleasant
Air-conditioning system*
132
outside odours or when in a tunnel. Oth-
erwise, the windows could mist up due
to a lack of fresh air in air-recirculation
mode.
* optional