Mercedes-Benz 500 SEC Operator's Manual page 39

Important!
Bring seat backrest to upright position
before recalling a stored seat/head
restraint/steering wheel/exterior and
inside rear view mirror position,
otherwise the front seats could get
forced against a rear seat and be
damaged.
Prior to operating the vehicle, the
driver should adjust the seat height for
proper vision as well as fore/aft
placement and seat back angle to insure
adequate control, reach, operation, and
comfort. The head restraint should also
be adjusted for proper height.
Both the inside and outside rear
view mirrors should be adjusted for
adequate rearward vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle
Safety Standard 213 and Canadian
Motor Vehicle Safety Standard 213.1.
All seat, head restraint, and rear view
mirror adjustments as well as fastening
of seat belts should be done before the
vehicle is put into motion.
Backrest lock
1 Release button
When a door is open, the backrests can
be folded forward without pushing the
button.
With doors closed and key in steering
lock position 2 the backrests are locked.
The lock can be released by pushing
button (1).
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