Mercedes-Benz 2013 CLA Owner's Manual page 114

Exterior lighting
112
In very rare cases, Adaptive Highbeam Assist
recognises road users too late or not at all. In
this, or in similar situations, the automatic
main-beam headlamps will not be deactivated
or activated regardless. There is a risk of an
accident.
Always carefully observe the traffic conditions
and switch off the main-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You
are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and
traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
poor visibility, e.g. due to fog, heavy rain or
R
snow
dirt on the sensors or the sensors are
R
obscured
General notes
You can use this function to set the head-
lamps to change between dipped beam and
main beam automatically. The system recog-
nises vehicles with their lights on, either
approaching from the opposite direction or
travelling in front of your vehicle, and conse-
quently switches the headlamps from main
beam to dipped beam.
The system automatically adapts the dipped-
beam headlamp range depending on the dis-
tance to the other vehicle. Once the system
no longer detects any other vehicles, it reac-
tivates the main-beam headlamps.
The system's optical sensor is located behind
the windscreen near the overhead control
panel.
Switching Adaptive Highbeam Assist
on/off
X
To switch on: switch on the Adaptive High-
beam Assist function using the on-board
Y
computer ( page 221).
X
Turn the light switch to Ã.
X
Press the combination switch beyond the
pressure point in the direction of arrow :
( Y page 109).
The _ indicator lamp in the multifunc-
tion display lights up when it is dark and the
light sensor activates the dipped-beam
headlamps.
If you are driving at speeds above approx-
imately 45 km/h:
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above approx-
imately 55 km/h and no other road users
are detected:
The main-beam headlamps are switched on
automatically. The K indicator lamp in
the instrument cluster also lights up.