Mercedes-Benz 600 SEL 1993 Owner's Manual page 41

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.