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LIGHTING
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* Option/accessory.
153
Active main beam
Active main beam is a function which uses a
camera sensor at the top edge of the wind-
screen to detect the headlamp beams from
oncoming traffic or the rear lights of vehicles
in front, and then switches from main beam
to dipped beam.
The symbol represents active main beam.
The function can start while driving in the dark
when the car's speed is approx. 20 km/h
(approx. 12 mph) or higher. The function can
also take streetlights into account. When the
camera sensor no longer detects any oncom-
ing car or car in front, main beam is switched
on again after about a second.
Activate active main beam
Active main beam is activated and deactivated
by turning the left-hand stalk switch to posi-
tion
. The rotating ring then returns to
position
. When active main beam is
activated, the symbol
illuminates with a
white glow in the driver display. When main
beam is activated, the symbol shines blue.
If active main beam is deactivated while main
beam is on, the lighting is immediately reset to
dipped beam.
Active main beam does not need to be reacti-
vated every time the car is started.
Adaptive functionality
For cars with LED
3
headlamps*, active main
beam has adaptive functionality
4
. In this case,
unlike what happens during conventional dim-
ming, the light beam continues to illuminate
with main beam on both sides of oncoming
traffic or vehicles ahead – only the part of the
light beam that points directly to the vehicle is
dimmed.
Adaptive functionality: Dipped beam directly towards
oncoming vehicle, but continued main beam on both
sides of the vehicle.
The main beam is partly dimmed, i.e. if the
light beam shines with slightly more than
dipped beam, the symbol
in the driver
display shines blue.
Limitations for active main beam
The camera sensor on which the function is
based has limitations.
3
LED (Light Emitting Diode)
4
Depending on the car's equipment level.
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