document_0900452a81793dcc.book Seite 63 Mittwoch, 21. März 2007 5:42 17
Lights and vision
63
A
To reduce the sensitivity level of the rain sensor move control A
⇒ page 62, fig. 63 to the left. To increase the sensitivity level of the
rain sensor move the control to the right.
Note
• Check that the washer fluid reservoir is full before starting a long
journey. Filling the reservoir ⇒ page 231.
If you have selected a high sensitivity level for the rain sensor the
windscreen wipers will react sooner to any moisture on the wind-
screen. The wiper intervals in the intermittent wipe setting are also
varied automatically according to the road speed (in addition to the
sensitivity setting).
• Worn or dirty wiper blades can cause smearing on the glass
which can also impair the effectiveness of the rain sensor. Please
check the wiper blades regularly.
Applies to vehicles: with headlight washers
Headlight washer system
WARNING
• Poor visibility can cause accidents. Always ensure that the
wiper blades are in good condition ⇒ page 64, “Changing wiper
blades”.
The headlight washer system only operates when the lights
are switched on.
• The rain sensor is only intended to assist the driver. The driver
is still obliged to manually operate the windscreen wipers as
required depending on visibility.
5
– Move the automatic wash and wipe lever to position A
⇒ page 62, fig. 63.
The headlight washer system is always activated the first time you
operate the automatic wash and wipe. Subsequently, it is only acti-
vated about every five wash and wipe cycles. The headlights are
always washed if you hold the lever for longer than about
2 seconds.
• Do not use water-repellent coatings on the windscreen. In bad
visibility conditions such as light rain, low sun or when driving at
night these coatings can cause increased dazzle, which is a
serious safety hazard. Such coatings can also cause the wiper
blades to judder.
The headlight washer jets come out of the bumper automatically
(under water pressure).
Caution
Clean off stubborn dirt (insects, etc.) from the lenses at regular
intervals, for instance when stopping for fuel.
• In icy conditions, always check that the wiper blades are not
frozen to the glass before using the wiper for the first time. If you
switch on the wipers when the wiper blades are frozen to the glass,
this could damage both the wiper blades and the wiper motor.
To ensure that the system works properly in winter, keep the nozzle
holders free of snow and remove any ice with a de-icer spray.
• Make sure you switch off the windscreen wiper system (lever in
position "0") before you use an automatic car wash. This will avoid
inadvertent triggering of the wipers and possible damage to the
wiper system.
Controls
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General maintenance
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