Mercedes-Benz 500 SEC Operator's Manual page 119

Manual Release of Fuel Filler Flap
The manual release knob is located
behind the right side trunk panel and
felt pad.
In case the central locking system does
not release the fuel filler flap, pull the
manual release knob while
simultaneously opening the fuel filler
flap.
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 counter-
clockwise.
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