Mercedes-Benz 350 SDL Owner's Manual page 86

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.
Insert 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 counterclockwise.
84
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 vacuum
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
effectiveness of the wipers.
To ensure operation of the windshield
wiper even when it is snowing heavily,
an overload protection 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 accumulated snow should be
manually removed when it is safe.