Alfa Romeo 166 Booklet page 62

At each start the rain sensor automati-
cally (in about 2 minutes) stabilises at a
temperature of about 40°C to eliminate
any condensation from the control surface
and prevent the formation of ice.
The rain sensor is capable of detecting
and adapting automatically to the pres-
ence of the following particular conditions
which call for different sensitivity:
– impurities on the control surface
(saline deposits, dirt, etc.)
– streaks of water caused by partial
wear of the windscreen wiper
– difference between day and night
(the human eye is more disturbed during
the night by a wet windscreen surface.
62
Windscreen washer (fig. 74)
The windscreen washer is operated by
pulling the lever towards the steering
wheel.
Keeping the lever pulled the windscreen
wiper is turned on continuously. When
the lever is released the wiper continues
for a few strokes and then stops or con-
tinues at the speed set.
fig. 74
Headlight washer (fig. 75)
(optional for versions/markets where
applicable)
These are operated when the low beam
headlights are on and the windscreen
washer is switched on.
fig. 75