2007 MERCEDES-BENZ S550 controls

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.
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Adjusting the passenger seat position from
the rear is not possible if you deactivate the over-
ride switch (
page 67).

322 Controls in detailSeatsSeat heating*
The buttons for seat heating are located on
the respective door. The red indicator
lamps on the button come on to show the
heating level selected.
1Seat heating button

Switch on the ignition (
page 315).

Switching on: Press button1 repeat-
edly until the desired heating level is
set.
One or more red indicator lamps on the
button show the selected heating level.

Switching off: Press button1 repeat-
edly until all indicator lamps go out.
Level3
Three indicator lamps on
(highest level)
The seat heating automatically
switches to level2 after approxi-
mately 5 minutes.
2
Two indicator lamps on
The seat heating automatically
switches to level1 after approxi-
mately 10 minutes.
1
One indicator lamp on
(lowest level)
The seat heating automatically
switches off after approximately
20 minutes.
off
No indicator lamp on
i
If one or more of the lamps on the seat heat-
ing button are flashing, there is insufficient volt-
age available since too many electrical
consumers are turned on. The seat heating
switches off automatically.
The seat heating will switch back on again auto-
matically as soon as sufficient voltage is avail-
able.

323 Controls in detailSeats
Seat ventilation*
The buttons for seat ventilation are located
on the respective door. The blue indicator
lamps on the button come on show the
ventilation level selected.
1Seat ventilation button

Switch on the ignition (
page 315).

Switching on: Press button1 repeat-
edly until the desired ventilation level is
set.
One or more blue indicator lamps on
the button show the selected ventila-
tion level.

Switching off: Press button1 repeat-
edly until all indicator lamps go out.
Level3
Three indicator lamps on
(highest level)
2
Two indicator lamps on
1
One indicator lamp on
(lowest level)
off
No indicator lamp on
i
The seat ventilation for the driver’ seat can
be activated using summer opening feature
(
page 355).
i
If one or more of the lamps on the seat ven-
tilation button are flashing, there is insufficient
voltage available since too many electrical con-
sumers are turned on. The seat ventilation
switches off automatically.
The seat ventilation will switch back on again au-
tomatically as soon as sufficient voltage is avail-
able.

324 Controls in detailSeatsHead restraints Front power head restraints
Head restraint height
1Head restraint height

Press the switch up or down in the di-
rection of arrow1.Head restraint tilt
Manually adjust the angle of the head re-
straint.

Push or pull on the upper edge of the
head restraint cushion.
Luxury active head restraints
(S 600 only) (front seats)
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that it is as close to
the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for
injury to the head and neck in the event of
an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.i
Adjust the head restraint in such a way that
it is as close to the head as possible.
i
Depending on the seat’s set fore and aft po-
sition, the head restraint height is automatically
pre-set.
i
The head restraint on the front passenger’s
side is automatically lowered all the way down
while the vehicle is in motion if no one is sitting
on the seat. This helps you to acquire a better
all-round view.
Warning!
G
When folding back the side cushions, never
reach between the side cushion and the
mounting post. You could otherwise be
trapped.