ADAPTIVE FRONT LIGHTING
SYSTEM
The adaptive front lighting system (AFLS) is designed
to give the driver improved visibility under varying
driving conditions. The main light source consists of
bi-functional (high and low beam) xenon projector units
that are swiveled left or right to improve the light spread
on bends in the road. The illustration shows the light
spread of a vehicle fitted with AFLS (1) and a vehicle
not fitted with AFLS (2).
Bi-Xenon lights (3) provide significantly improved
visibility over conventional halogen lights (4).
The projector units also react dynamically in the vertical
plane to the vehicle’s braking or acceleration to
maximize headlight performance.
The units operate when the engine is running and the
master lighting switch is set to headlights, or AUTO (if
the ambient light has fallen below a preset level). When
the engine is started, the headlights will swivel for a
few seconds as they initiate a self-calibration cycle.
The system takes inputs from the vehicle’s road speed
and steering angle to determine the amount of horizontal
swivel. The amount of swivel is highest at low and
maneuvering speeds and reduces as speed increases.
If reverse gear is selected, the lights return to the central
position and the unit’s swiveling capability is disabled.
Static Bending Lights
Additional lighting comes from the cornering (static
bending) lights, which are angled outwards from the
center line of the vehicle. These lights broaden the beam
of the headlights when cornering during normal night
driving. The illustration shows the light spread of a
vehicle not fitted with static bending lights (1) and a
vehicle fitted with static bending lights (2).
61Technical Training
Adaptive Front Lighting SystemLesson 12 – Exterior LightingE71512 E71513
05/25/2006
