Owner's Manual for the vehicle. With a quick reference ... - E38.org

Wiper/Washer system
69n
on the traffic conditions. This is especially
important under adverse weather
conditions.
To activate the rain sensor:
From ignition key position 1 and up,
move the lever to position 1. The wipers
travel once across the windshield, regardless
of the weather.
You can leave the lever permanently in
position 1. It is then only necessary to
activate the rain sensor from ignition
key position 1 and up. To do this
> turn rotary dial 7 briefly or
> use either the automatic windshield
washer 5 or the automatic intensive
washer 6.
To modify the sensitivity of the rain
sensor:
Turn rotary dial 7.
Turn the rain sensor off in automatic
car washes.
If you do not, damage may occur if the
wipers switch on unintentionally.<
2 Normal wiper speed
When the vehicle is stationary, the wipers
switch automatically to intermittent
wipe (not on vehicles with rain sensor).
3 Fast wiper speed
When the vehicle is stationary, the wipers
operate at normal speed (not on vehicles
with rain sensor).
5 Automatic windshield washer
The system sprays washer fluid against
the windshield and activates the wipers
for a brief period.
If you only pull the lever briefly, the system
sprays washer fluid onto the windshield
without activating the wipers.
Headlamp washers*
If they are on, the headlamps will also
be cleaned every fifth time you activate
the automatic windshield washer.
Do not use the washers if there is
any danger that the fluid will
freeze on the windshield, otherwise vision
could be obscured. For this reason,
use an antifreeze agent. Refer to
page 142.
Do not use the washers when the reservoir
is empty, since this could cause
damage to the washer pump.<
Windshield washer jets
The windshield washer jets and the
windshield in the wiper sweep area are
defrosted automatically when the ignition
key is in position 2.
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