Mercedes-Benz 300SD 1981, Owner'S Manual

Page: 77 / 97

W indshield W ipers
E m erg en cy O p e ra tio n of Sliding Roof Unlocking th e Fuel F iller Flap
In order to renew or release frozen
windshield wiper blades, the wind­
shield wiper arms can be pulled out of
their recess by hand. Sufficient force
must be applied to overcome spring
resistance.
In order to ensure operation of the
windshield wiper even when it is
snowing heavily, an overload protec­
tion has been installed. It becomes
effective if a certain 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 the electric drive fails, the sliding
roof can also be moved by hand.
For this purpose a red hexagonal
head is provided in the trunk on the
LH side behind a cover. Using a
screwdriver, remove the cover, slip
the spark plug wrench onto the
hexagonal head and move the sliding
roof in the desired direction by
turning the wrench.
To close the sliding roof, turn wrench
clockwise.
If the filler flap cannot be opened
because of a fault, withdraw the link of
the vacuum element (on RH side in
boot).
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