Mercedes-Benz 300 SD-TURBO DIESEL 1983, Owner'S Manual

Page: 78 / 97

Windshield Wipers
Emergency Operation of Sliding Roof Unlocking the Fuel Filler 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 this
condition is encountered, the accu­
mulated snow should be manually
removed when it is safe to do so.
If the electrically operated sliding roof
drive mechanism should fail, the roof
can be operated manually.
The drive motor, located on the left
side of the trunk behind a cover, is
provided with a redcolored hex head.
Remove cover with a screwdriver and
slip the spark plug wrench (or a
suitable hex socket with driver) onto
the hex head. Now move sliding roof
in desired direction by turning the
wrench.
If the filler flap cannot be opened
because of a fault, withdraw the link of
the vacuum element (on RH side in
trunk).
To close the sliding roof turn wrench
clockwise.