Mercedes-Benz S-Class Owner's Manual page 119

Insert front passenger head restraint
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the brackets.
The front passenger head restraint must
engage on both sides.
Press down red pin 4.
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If pin 4 can be pressed down and is then no
longer visible, the front passenger head
restraint has engaged correctly.
Fold covers 2 forwards and close them.
#
The front passenger head restraint folds into
position automatically.
Moving the front passenger seat into the
normal position (chauffeur mode)
Requirements:
to select the front passenger seat: the power
R
supply is switched on
the front passenger head restraint is fitted
R
1 into
Seats and stowing 117
To select the front passenger seat: press
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button 1.
When the indicator lamp lights up, the front
passenger seat is selected.
Setting the normal position
Press button 3 towards the rear and hold it
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in this position.
The front passenger seat will move to the
threshold of the area for chauffeur mode.