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Stichworte Daten Technik Selbsthilfe Wartung Bedienung Überblick
Regensensor*
Der Regensensor steuert je nach
Benetzung der Windschutzscheibe den
Scheibenwischerbetrieb.
Infrarotes Licht wird über einen opti-
schen Körper so an die Oberfläche der
Windschutzscheibe geleitet, daß es bei
trockener Scheibe vollständig reflektiert
wird. Die reflektierte Lichtmenge wird
gemessen.
Wird die Scheibe durch Wassertropfen
benetzt, vermindert sich die reflektierte
Lichtmenge, da das infrarote Licht an
der Oberfläche der Windschutzscheibe
austreten kann. Die reflektierte Licht-
menge ist also ein Maß für die Benet-
zung der Windschutzscheibe.
390de133
Bei eingeschalteter „Intervall“-Stufe
reagiert der Wischer sofort, wenn z.B.
durch vorausfahrende Fahrzeuge Was-
ser an die Windschutzscheibe gespritzt
wird. Der Regensensor trägt damit zu
mehr Sicherheit und Komfort bei.
Online Version zu Sach-Nr. 01 40 0 004 599 - © 09/99 BMW AG
221


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