Mercedes-Benz 420 SEL 1988, Owner'S Manual

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Combination Switch
1 Low beam (with exterior lamp
switch turned to position 2)
2 High beam (with exterior lamp
switch turned to position 2)
3 High beam flasher (high beam
available independent of exterior
lamp switch position)
4 Turn signals, right
5 Turn signals, left
To operate the turn signals, move the
combination switch past the point of
resistance (up or down). The switch is
automatically cancelled when the
steering wheel is turned to a large
enough degree.
To signal minor directional changes,
such as changing lanes on a highway,
move combination switch to the point
of resistance only and hold it there.
6 Control for
• windshield washer system
• headlamp cleaning system
(will work only with exterior
lamp switch in position 1 or 2)
When the washer system is acti­
vated, the wipers also operate for
a limited time.
The reservoir, hoses, and nozzles of
the windshield washer and headlamp
cleaning system are automatically
heated.
7 Windshield wiper control
0 Wiper off
1 Intermittent wiping
II Normal wiper speed
III Fast wiper speed
Note:
If one of the turn signals fails, the turn
signal indicator system flashes and
sounds at a faster rate than normal. In
addition, the light failure indicator will
come on.
If the windshield wipers smear the
windshield, even during rain, activate
the washer system as often as neces­
sary. The fluid in the washer reservoir
should be mixed in the correct ratio.
For the overload protection of the
windshield wiper motor, see page 89.
Mixing ratio
For temperatures above freezing:
MB Windshield Washer Concentrate
“S” and water
1 part “S” to 100 parts water
(25 ml “S” to 2.5 liter water;
40 ml “S” to 1 gallon water).
For temperature below freezing:
MB Windshield Washer Concentrate
“S” and commercially available pre­
mixed windshield washer solvent
1 part “S” to 100 parts solvent
(25 ml “S” to 2.5 liter solvent;
40 ml “S” to 1 gallon solvent).
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