Audi S5 Owner's Manual page 65

document_0900452a81793dcc.book Seite 63 Mittwoch, 21. März 2007 5:42 17
To reduce the sensitivity level of the rain sensor move control
⇒ page 62, fig. 63 to the left. To increase the sensitivity level of the
rain sensor move the control to the right.
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).
WARNING
Poor visibility can cause accidents. Always ensure that the
wiper blades are in good condition ⇒ page 64, "Changing wiper
blades".
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.
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.
Caution
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.
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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journey. Filling the reservoir ⇒ page 231.
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
The headlight washer system only operates when the lights
are switched on.
– Move the automatic wash and wipe lever to position
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.
The headlight washer jets come out of the bumper automatically
(under water pressure).
Clean off stubborn dirt (insects, etc.) from the lenses at regular
intervals, for instance when stopping for fuel.
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.
Safety Driving tips General maintenance
Lights and vision
Note
Check that the washer fluid reservoir is full before starting a long
Worn or dirty wiper blades can cause smearing on the glass
⇒ page 62, fig. 63.
Self-help
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Technical data