001-055 Alfa 156 GB - Alfa Romeo serviss

ADJUSTING THE FRONT
FOGLIGHTS
(for versions/markets where
applicable)
To adjust the height of the beam of the
front foglights, act on adjusting screw (Afig.
164).
Contact Alfa Romeo Authorized
Services to have
the headlights correctly adjusted.
fig. 164
A0B0239m
GAS DISCHARGE HEADLIGHTS
(optional for versions/markets
where applicable)
The gas (xenon) discharge headlights operate
with a voltaic arc, in an ambient saturated
with pressure xenon, instead of the
glow filament.
The resulting illumination is sensibly higher
to that of conventional lamps, both for light
quality (clearer light) and for the width and
positioning of the illuminated area.
The advantages of better illumination can
be perceived (due to less eyesight fatigue
and greater orientation capacity for the driver,
which in turn means higher driving
safety) especially in case of bad weather,
fog and/or insufficient road signs, thanks
to the better illumination of the side parts
of the visual field, normally obscured.
The large increase of the side part illumination
increases driving safety since it allows
the driver to better see the other users on
the edge of the road (pedestrians, cyclists
and bikers).
The triggering of the voltaic arc requires a
very high voltage, while subsequent power
supply can take place at a low voltage.
The headlights achieve their top luminosity
approx. 15 seconds after they are
switched on.
The intense light produced by this type of
headlights requires the use of an automatic
system to keep headlight trim constant and
avoid dazzling the vehicles coming from the
opposite direction in case of braking, acceleration
or when carrying loads.
GETTING TO KNOW YOUR CAR
175