Mercedes-Benz 1984 300SD, Owner'S Manual

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Seats
Orthopedic Seat Backrest
Some m odels may be equipped with
orth o p e d ic seats. These seats have
an inflatable air cushion built into the
backrest to provide additional spinal
cord support. The am ount of cushion
height and curvature may be adjusted
after turning the key in steering lock
to position “ 2” .
The inflation pressure of the air
cushion may be continuously varied
between position “ 0 ” = w ithout
pressure, and position “ 4 ” = maxi­
mum pressure, by changing the
pressure regulator (1) setting.
In addition, the cushion height may be
changed to five different settings
betw een position " A ” = lowest
setting, and " E ” = highest setting, by
varying the height regulator (2)
adjustm ent.
If a driving trip is tem porarily inter­
rupted, the last cushion setting is
retained in memory, and autom atically
adjusts the cushion to this setting
when the trip is continued.
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