2007 MERCEDES-BENZ S550 seat adjustment

315 Controls in detail
Starter switch positions
Starter switch positions
SmartKeyStarter switch
0For removing SmartKey
1Power supply for some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary.
If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 544).
3Starting positionFor information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 359).
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
i
When you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps (ex-
cept high beam headlamp indicator lamp and
turn signal indicator lamps if activated) should go
out when the engine is running. This indicates
that the respective systems are operational.
i
When the SmartKey is removed from the
starter switch and the automatic transmission is
in a position other thanP, the automatic trans-
mission automatically shifts to P.
!
If the SmartKey cannot be turned in the
starter switch, the battery may not be sufficient-
ly charged.


Check the battery and charge it if necessary
(page 634).


Get a jump start (
page 639).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.

317 Controls in detail
Starter switch positions
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the automatic transmission
is set toP.

Do not depress the brake pedal.
KEYLESS-GO start/stop button1USA only
2Canada only
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status 0 (as with
SmartKey removed).Position 1

Press the KEYLESS-GO start/stop but-
ton once.
This supplies power for some electrical
consumers, such as seat adjustment.
Ignition (or position 2)

Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 544).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 360).
i
If you now press the KEYLESS-GO
start/stop button


once again, the ignition (position2) is
switched on


twice, the power supply is again switched off
i
If you now press the KEYLESS-GO
start/stop button once, the power supply is
again switched off.
i
When you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps (ex-
cept high beam headlamp indicator lamp and
turn signal indicator lamps if activated) should go
out when the engine is running. This indicates
that the respective systems are operational.

318 Controls in detailSeatsSeat adjustment
You can adjust the lumbar support, multi-
contour seats for driver and front passen-
ger, as well as drive-dynamic multicontour
seats using COMAND (
page 236).
Warning!
G
All seat, head restraint adjustments, as well
as fastening of seat belts, must be done be-
fore the vehicle is put into motion.Warning!
G
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat
back in an excessively reclined position as
this can be dangerous. You could slide un-
der the seat belt in a collision. If you slide
under it, the belt would apply force at the ab-
domen or neck. That could cause serious or
fatal injuries. The seat backrest and seat
belts provide the best restraint when the
wearer is in a nearly upright position and
belts are properly positioned on the body.
Your seat must be adjusted so that you can
correctly fasten your seat belt
(page 339).
Never place hands under the seat or near
any moving parts while a seat is being ad-
justed.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the power seats
can be operated when the respective door is
open. Therefore, do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
Warning!
G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriate infant, or toddler restraint, or
booster seat recommended for the size and
weight of the child. For additional informa-
tion, see “Children in the vehicle”
(page 61).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.

319 Controls in detailSeats
Front power seat adjustmentExample driver’s door1Head restraint height (
page 324)
2Seat height
3Seat cushion tilt
4Seat cushion depth
5Seat fore and aft adjustment
6Seat backrest tilt

Switch on the ignition (
page 315).
or

Open the respective door.

Seat height: Press the switch up or
down in the direction of arrow2.

Seat cushion tilt: Press the switch up
or down in the direction of
arrow3until your upper legs are
lightly supported.

Seat cushion depth: Press the switch
forward or backward in the direction of
arrow4 until your legs are supported
comfortably.

Seat fore and aft adjustment: Press
the switch forward or backward in the
direction of arrow5.
Adjust the seat to a comfortable seat-
ing position that still allows you to
reach the accelerator/brake pedal
safely. The position should be as far to
the rear as possible, consistent with
ability to properly operate controls.

Seat backrest tilt: Press the switch
forward or backward in the direction of
arrow6 until your arms are slightly
angled when holding the steering
wheel.
i
If PRE-SAFE
® has been activated, the front
passenger’s seat and/or electrically adjustable
rear seats* will be moved to a more favorable
seat position.
i
The memory function (
page 336) lets you
store the settings for the seat positions together
with the settings for the steering wheel and the
exterior rear view mirrors.
!
When moving the seat, make sure there are
no items in the footwell or behind the seats. Oth-
erwise you could damage the seats.
i
Depending on the set height of the head re-
straint, the seat fore and aft position is automat-
ically pre-set.
i
To ensure a maximum range of movement
for seat adjustment, various adjustment func-
tions also involve other indirect adjustments be-
ing made.

320 Controls in detailSeatsRear power seat* adjustment
(rear outer seats)Example rear right door1Seat cushion tilt
2Seat backrest tilt
3Folding down and placing upright head
restraint (
page 326)
4Head restraint tilt (
page 326)
5Seat fore and aft adjustment

Switch on the ignition (
page 315).
or

Open the respective door.

Adjust desired seat using seat
switches1,2 and5.Adjusting front passenger seat from
driver’s seat/rear*
Warning!
G
The seat belt only offers its intended protec-
tion when the seat backrest is in a nearly
vertical position and the occupant is sitting
upright. Avoid sitting in positions that pre-
vent the seat belt from being properly posi-
tioned against the body (
page 339). You
should therefore adjust the backrest to a po-
sition as upright as possible.
Warning!
G
When adjusting the front passenger seat,
make sure the seat, if occupied, is as far
from the passenger front air bag as possi-
ble.
Otherwise, the passenger could be seriously
or even fatally injured in the event of an ac-
cident or braking maneuver.
Make sure no one is caught or injured while
the seat is being adjusted.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the power seats
can be operated when the respective door is
open. Therefore, do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.!
Do not move the front passenger seat com-
pletely forward if objects are stored in the parcel
net in the front passenger-side footwell. Items in
the net may be damaged.

321 Controls in detailSeats
Adjusting front passenger seat from
driver’s seat*
You can adjust the front passenger seat
using the seat switches on the driver’s
side.
1Adjusting front passenger seat
Switch on the ignition (
page 315).

Press button1.
When the indicator lamp on button1 is
on, you can operate the following features
of the front passenger seat:


seat adjustment


seat heating/ventilation*


memory function
Setting front passenger seat position
from rear*
The switch is located on the right rear pas-
senger door.
1To select front or rear passenger seat
2Seat height
3Head restraint height (
page 324)
4Backrest tilt
5Seat fore and aft adjustment

Switch on the ignition (
page 315).
or

Open the right rear passenger door.

Press button1 to adjust the front
passenger seat.
The Indicator lamp in the button1
comes on.

Adjust front passenger seat using seat
switches2,3,4 and5.

To adjust right rear passenger seat
(page 320), press button1 again.
The Indicator lamp in the button1
goes out.
i
Adjusting the passenger seat position from
the rear is not possible if you deactivate the over-
ride switch (
page 67).

325 Controls in detailSeats
Adjustment
1Head restraint side cushions
2Adjusting head restraint forward and
backward
You can individually adjust side
cushions1 of the luxury head restraints.
Adjusting side cushions: Pull or push
side cushions1 into desired position.

Adjusting forward or backward: Pull
or push head restraint in direction of
arrow2.Resetting
If the luxury active head restraints have
been triggered in an accident, the luxury
active head restraints must be reset. Oth-
erwise, the luxury active head restraints
cannot offer any additional protection in
the event of another rear-end collision.
Have this work carried out by an autho-
rized Mercedes-Benz Center.
For information on luxury active head re-
straints, see “Luxury active head restraints
(S 600 only)” (
page 59).
Rear head restraintsFolding head restraints back
The rear seat head restraints and the rear
seat power head restraints* can be folded
backward for increased visibility.
1Switch in the front center console
Warning!
G
For safety reasons, always drive with the
rear head restraints in the upright position
when the rear seats are occupied.
Otherwise, the back of the head will not be
supported in the event of a collision. As a re-
sult, rear seat occupants could be injured.
Warning!
G
Keep the area around head restraints clear
of articles (e.g. clothing) to not obstruct the
folding operation of the head restraints.i
You can only fold back the rear seat head re-
straints when no rear seat passenger is wearing
a seat belt.

327 Controls in detailSeats

Press switch down in the direction of
arrow3.
The rear power head restraint will fold
backward.

Press the switch forward or backward
in the direction of arrow2 or4.
The power head restraint will be tilted.
Luxury head restraints*
(rear outer seats)Adjustment
1Head restraint side cushions
2Head restraint height
You can individually adjust side
cushions1 of the luxury head restraints

Adjusting side cushions: Pull or push
side cushions1 into desired position.

Adjusting head restraint angle: Grip
head restraint at upper edge of cushion
and pull it forward or backward in di-
rection of arrow2.
Multicontour seats*, rear
You can adjust the rear outer multicontour
seats using the buttons on the center con-
sole.
1To select right rear passenger seat
2Massage setting, gentle
3Massage setting, vigorous
4To adjust position of backrest curva-
ture (lordosis)
5Lumbar region support
6Side bolster adjustment
7To select left rear passenger seat
Switch on the ignition (
page 315).
Warning!
G
When folding back the side cushions, never
reach between the side cushion and the
mounting post. You could otherwise be
trapped.