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Operation
Rain sensor*
Fig. 85
Windscreen wipers lever: adjust the
r
ain sensor
A
.
Fig. 86 Rain sensor sensitive surface
The rain sensor controls the frequency of the
windscr
een wiper int
ervals, depending on the
amount of rain
›››
. The sensitivity of the rain
sensor can be adjust
ed manually. Manual
wipe
›
››
page 86.
Press the lever to the desired position
›››
Fig. 85:
Rain sensor off.
Rain sensor on; automatic wipe if neces-
sary.
Setting sensitivity level of rain sensor
–
Set control to the right: high sensitivity.
–
Set control to the left: low sensitivity.
When the ignition is switched off and then
back on, the rain sensor stays on and starts
operating again when the windscreen wipers
are in position
1
and the vehicle is travelling
at mor
e than 16 km/h (
10 mph).
Modified behaviour of the rain sensor
The possible causes of anomalies and erro-
neous interpretations in the sensitive surface
area
›››
Fig. 86 of the rain sensor are, among
others:
●
Damaged wipers: a film of water on the
damaged blades may lengthen the activa-
tion time, reduce the washing intervals or re-
sult in a fast and continuous wipe.
●
Insects: insects on the sensor may trigger
the windscreen wiper.
●
Salt on the road: in winter, salt spread on
the roads may cause an extra long wipe
when the windscreen is almost dry.
0
1
A
●
Dirt: dry dust, w
ax, coating on gl
ass (Lotus
effect) or traces of detergent (car wash) may
reduce the effectiveness of the rain sensor or
make it react more slowly, later or not at all.
●
Windscreen crack: the impact of a stone
will trigger a single wipe cycle with the rain
sensor on. Next the rain sensor detects the re-
duction in the sensitive surface area and
adapts accordingly. The behaviour of the
sensor will vary with the size of the damage
caused by the stone.
WARNING
The rain sensor may not detect enough rain
to s
witch on the wipers.
●
If necessary, switch on the wipers man-
ually when water on the windscreen ob-
structs visibility.
Note
●
Regul
arly clean the sensitive surface of
the rain sensor and check for possible
damage to the blades
›››
Fig. 86 (arrow).
●
To remove wax and coatings, we recom-
mend a window cleaner containing alco-
hol.
●
Do not put stickers on the windscreen in
front of the rain sensor*. This may cause
sensor disruption or faults.
88
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