seat adjustment MERCEDES-BENZ S550 4MATIC 2008 W221 Owner's Manual

Contents
Controls in detail............................. 331
Locking and unlocking ....................... 332
SmartKey ..................................... 332
SmartKey with KEYLESS-GO*....... 335
Checking batteries in the
SmartKey or SmartKey with
KEYLESS-GO*............................... 340
Loss of the SmartKey or
SmartKey with KEYLESS-GO*....... 340
Opening doors from the inside ..... 341
Power closing assist for doors
and trunk lid ................................. 342
Automatic central locking ............ 342
Locking and unlocking from
the inside ..................................... 343
Starter switch positions ..................... 344
SmartKey ..................................... 344
SmartKey with KEYLESS-GO*....... 345
Seats.................................................. 347
Seat adjustment ........................... 347
Seat heating* ............................... 351
Seat ventilation* .......................... 352
Head restraints............................. 353
Multicontour seats*, rear ............. 356
Easy-entry/exit feature ................ 357Steering wheel ................................... 359
Steering wheel adjustment .......... 359
Heated steering wheel* ............... 360
Mirrors ............................................... 361
Interior rear view mirror ............... 361
Exterior rear view mirrors............. 361
Power folding exterior
rear view mirrors .......................... 362
Auto-dimming rear view mirrors ... 363
Activating exterior rear view
mirror parking position................. 364
Memory function ............................... 365
Storing positions into memory ..... 366
Recalling positions from memory . 366
Storing exterior rear view mirror
parking position ........................... 367
Fastening the seat belts .................... 368
Proper use of seat belts ............... 370
Seat belt height adjustment ......... 370
Lighting.............................................. 371
Exterior lamp switch..................... 371
Switching on high beams ............. 375
Headlamp cleaning system .......... 375
Corner-illuminating lamps ............ 376
Hazard warning flasher ................ 377
Interior lighting............................. 378Door entry lamps ......................... 379
Courtesy lighting .......................... 380
Trunk lamp ................................... 380
Windshield wipers ............................. 381
Switching on/off
windshield wipers ........................ 381
Intermittent wiping ...................... 382
Single wipe .................................. 382
Wiping with windshield washer
fluid.............................................. 382
Power windows ................................. 383
Opening and closing
power windows ............................ 383
Rear side window sunshades* ..... 385
Summer opening feature ............. 385
Convenience closing feature ........ 386
Driving and parking ........................... 389
Starting the engine ...................... 389
Driving off .................................... 392
Turn signals.................................. 393
Problems while driving ................. 393
Parking......................................... 394
Turning off the engine .................. 397
Releasing seat belts ..................... 398
Automatic transmission..................... 399
Gear selector lever....................... 399

34 At a glance
Driver’s door control panel
ItemPage
1Inside door handle341
2Central unlocking switch341
3Central locking switch341
4Memory function (for storing
seat, exterior mirror, and
steering wheel settings)365
5Selector button for front
passenger seat350
6Seat heating
Seat ventilation*351
352
7Seat adjustment347
ItemPage
8Exterior rear view mirror
adjustment
Mirror folding function361
362
9Switches for opening/ closing
door windows
Switches for opening/ closing
rear door window sunshades*383
385
aRemote trunk opening/clos-
ing* switch479
bOverride switch for rear pas-
senger compartment 63

35 At a glance
Rear door control panel
Rear door control panel
ItemPage
1Selection switch for right
front passenger seat adjust-
ment*
1
1This switch is located on the right rear passenger
side only.
349
2Memory function* (for storing
seat settings) (Canada only)365
3Inside door handle341
4Seat adjustment347
5Seat heating*
Seat ventilation*351
352
6Button for extending/retract-
ing panorama roof sunblind*489
7Switch for extending/retract-
ing rear window sunshade*503
8Switches for opening/closing
door windows
Switches for opening/closing
rear side window sunshades*383
385

42 Safety and Security
Occupant safety
Air bags
Warning!G
Air bags are designed to reduce the poten-
tial of injury and fatality in certain frontal im-
pacts (front air bags), side impacts (side
impact air bags and window curtain air bags)
or rollovers (window curtain air bags). How-
ever, no system available today can com-
pletely eliminate injuries and fatalities.
The deployment of the air bags temporarily
releases a small amount of dust from the air
bags. This dust, however, is neither injurious
to your health, nor does it indicate a fire in
the vehicle. The dust might cause some tem-
porary breathing difficulty for people with
asthma or other breathing trouble. To avoid
this, you may wish to get out of the vehicle
as soon as it is safe to do so. If you have any
breathing difficulty but cannot get out of the
vehicle after the air bag inflates, then get
fresh air by opening a window or door.
Warning!G
To reduce the risk of injury when the front
air bags inflate, it is very important for the
driver and front passenger to always be in a
properly seated position and to wear their
respective seat belt.
For maximum protection in the event of a
collision always be in normal seated position
with your back against the backrest. Fasten
your seat belt and make sure that it is prop-
erly positioned on your body (
page 368).
Since the air bag inflates with considerable
speed and force, a proper seating and hands
on steering wheel position will help to keep
you at a safe distance from the air bag.
Occupants who are unbelted, out of position
or too close to the air bag can be seriously
injured or killed by an air bag as it inflates
with great force in the blink of an eye:

Sit properly belted in a position that is
as upright as possible with your back
against the seat backrest.

Adjust the driver’s seat as far as possi-
ble rearward, still permitting proper op-
eration of vehicle controls. The distance
from the center of the driver’s breast-
bone to the center of the air bag cover
on the steering wheel must be at least
10 inches (25 cm) or more. You should
be able to accomplish this by a combina-
tion of adjustments to the seat and
steering wheel. If you have any prob-
lems, please contact an authorized
Mercedes-Benz Center.

Do not lean your head or chest close to
the steering wheel or dashboard.

Keep hands on the outside of steering
wheel rim. Placing hands and arms in-
side the rim can increase the risk and
potential severity of hand/arm injury
when driver’s front air bag inflates.

Adjust the front passenger seat as far as
possible rearward from the dashboard
when the seat is occupied.

63 Safety and Security
Occupant safety
If you have not installed a child seat, the
LATCH anchors are hidden by an uphol-
stery cover.
1Indicates the position of the anchors
2Anchors
3Upholstery cover
4Installation device
Bring the rear power seat backrest* to
its fully upright position (
page 349).
Fold upholstery cover3 upward.
Turn installation device4 to a vertical
position so that upholstery cover3
does not fold down.
Install child seat according to the man-
ufacturer’s instructions.
A rigid connection is established be-
tween the child seat and the body of
the vehicle.Override switch for rear passenger
compartment
You can disable select functions in the rear
passenger compartment for added safety
(for instance when you have children riding
in the rear passenger compartment).
You can disable the following functions in
the rear passenger compartment:

rear door window operation
(
page 383)

adjustment of front passenger seat
from the rear* (
page 349)

rear center console lighter
(
page 505)
Damaged or impact damaged child seats or
child seat mounting fittings must be re-
placed.
Do not leave children unattended in the ve-
hicle, even if the children are secured in a
child restraint system.
Warning!G
Vehicles with rear power seats*: Never ad-
just the rear seat position after installing the
child restraint. Adjusting the rear seat posi-
tion after installing the child restraint could
damage the child restraint and/or introduce
undesirable slack or tension into the seat
belt and loosen or misposition the child re-
straint, lessening the effectiveness of the
child restraint and thus increasing the
chance or severity of injury in an accident.
iThe child seat must be firmly attached to the
right and left side anchor fittings.
Make sure the seat belt for the center seat can
operate freely with a child seat installed.
Non-LATCH type child seats may also be used
and can be installed using the vehicle’s seat belt
system. Install child seat according to the manu-
facturer’s instructions.

246 Control systems
COMAND vehicle menu
Activating easy-entry/exit feature
Use this function to activate and deacti-
vate the easy-entry/exit feature
(
page 357).
The following settings are available for the
easy-entry/exit feature:
Select “Vehicle”.
The main area is active.
Selecting “Easy Entry/Exit Feature”
menu: Slide omp or rotate ymz.
Confirming selection: Press n.
or
Select “Vehicle”
“Vehicle”
“Easy
Entry/Exit Feature”.
Confirming selection: Press n.
A selection list appears.
The current setting is indicated by a
dotR.
iThe components and operating principles of
COMAND can be found on (
page 85).
OFFThe easy-entry/exit
feature is deactivated.
Steering Column
& SeatBoth the steering col-
umn and the driver’s
seat are moved.
Warning!G
You must make sure no one can become
trapped or injured by the moving steering
wheel and driver’s seat when the easy-en-
try/exit feature is activated.
To stop seat/steering wheel movement, do
one of the following:

Press seat adjustment switch
(
page 348).

Move steering wheel adjustment stalk
(
page 359).

Press one of the memory position but-
tons or the memory button M
(
page 366).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.

259 Control systems
COMAND seats
COMAND seats
When adjusting the seats, observe the
safety notes in the section “Seats”
(
page 347).
Operating seats via COMAND
The following seat adjustments can be
made via COMAND:Selecting a seat
You must first select the seat for which you
would like to make adjustments.
1Seat menu button
Press O.
The main area is active.
Switching to the bottom menu line:
Slide qmr.
Example illustration (vehicles with Drive-dy-
namic multicontour seat*)
Selecting seat: Slide omp or
rotateymz.
Confirming selection: Press n.
Exiting menu
There are several ways to exit the multi-
contour seat menu.
Press O again.
or
Press any shortcut button.
or
iThe components and operating principles of
COMAND can be found on (
page 85).
SettingsPage
Lumbar support260
Multicontour seats*, front260
Drive-dynamic multicontour
seats*, front262


344 Controls in detail
Starter switch positions
SmartKey
Starter 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 598).
3Starting positionFor information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 390).
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. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
iWhen 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.
iWhen 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 692).

Get a jump start (page 697).
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.

346 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 button
1USA 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 598).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 390).
iIf 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
iIf you now press the KEYLESS-GO
start/stop button once, the power supply is
again switched off.
iWhen 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.


347 Controls in detail
Seats
Seats
Seat adjustment
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 seat belt would apply force at
the abdomen or neck. That could cause se-
rious or fatal injuries. The seat backrest and
seat belts provide the best restraint when
the wearer is in a nearly upright position and
seat belts are properly positioned on the
body.
Warning!G
Your seat must be adjusted so that you can
correctly fasten your seat belt
(
page 368).
Observe the following points:

Adjust the backrest until your arms are
slightly angled when holding the steer-
ing wheel.

Adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The po-
sition should be as far back as possible
with the driver still able to operate the
controls properly.

Adjust the 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.

Never place hands under the seat or
near any moving parts while a seat is be-
ing adjusted.
Failure to do so could result in injury to per-
sons.
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. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.