Emergency Operation Of Sliding Roof; Manual Release Of Fuel Filler Flap; Windshield Wipers - Mercedes-Benz 420 SEL 1989 Owner's Manual

Emergency Operation of Sliding
Roof
The sliding roof can be opened or
closed manually should an electrical
malfunction occur.
Fold back access cover in left side
panel of trunk with a screwdriver. In­
sert socket wrench (from tool kit)
through opening in panel and place
on the hex-drive of the electric motor.
Turn socket wrench (manually) to
open or close roof as desired.
To slide the roof closed or to raise the
roof at the rear: turn clockwise.
To slide the roof open or to lower the
roof at the rear: turn counterclock­
wise.

Manual Release of Fuel Filler Flap

If the central locking system does not
release the fuel filler flap automatical­
ly, pull back the knob on the vaccuum
element on the right side of the trunk
while opening the filler flap.

Windshield Wipers

To release frozen windshield wiper
blades or to replace worn blades, the
windshield wiper arms can be pulled
out of their recess by hand. Sufficient
force must be applied to overcome
spring resistance. Be careful not to
tear rubber blades which are frozen to
the glass, as this will reduce the effec­
tiveness of the wipers.
To ensure operation of the windshield
wiper even when it is snowing heavily,
an overload protection has been in­
stalled. It becomes effective if a cer­
tain wiping resistance is exceeded as
a result of snow accumulation. The
windshield wiper arm will then no
longer return completely to its initial
position, although the windshield
wiper motor continues to run a full
cycle. If this condition is encountered,
the accumulated snow should be
manually removed when it is safe.
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