BMW SERIE 3 CONVERTIBLE 2000 El manual del propietario Pagina 179

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179n
Index Data Technology Repairs Car care Controls Overview
Rollover protection syste
m
Xenon lamps*
The rollover protection system offers
additional protection apart from the air-
bags and safety belts. The system has
highly sensitive sensors that react im-
mediately upon detecting an unstable
vehicle condition, i.e. when the vehicle
is tilted to a critical degree, or if the
wheels are not making proper ground
contact. In this kind of situation, the
protective bar in each rear head
restraint is triggered.
Xenon lamps illuminate the side and
front areas of the vehicle with signifi-
cantly more brightness and uniformity
than the traditional halogen lamp.
In a xenon lamp, an electric arc re-
places the filament in order to generate
intense illumination. A gas mixture in a
quartz glass tube with metal vapor is
ignited by a high electric voltage. The
arc that is generated is then sustained
by a lower voltage. When the lamp is
turned on there is a brief warm-up
period. Maximum brightness is attained
in approx. 15 seconds.
390de134
Xenon lamps provide significantly im-
proved visibility, especially during ad-
verse weather and poor driving condi-
tions e.g. driving at night in heavy rain
or through road repair areas where
there are no lane markers.
Vehicles with xenon lamps are equipped
with automatic headlamp range control.
As a result, the highway is always opti-
mally lighted, regardless of road condi-
tions, and drivers in oncoming traffic are
not blinded.
Xenon lamps make a significant contri-
bution to highway safety since pedestri-
ans and other highway users, bicyclists
and motorcyclists in the right lane, are
more easily detected.
Online Edition for Part No. 01 41 0 155 048 - © 01/00 BMW AG
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