Smart key MERCEDES-BENZ S550 2007 W221 Owner's Guide

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.

316 Controls in detailStarter switch positionsSmartKey with KEYLESS-GO*
Vehicles equipped with the KEYLESS-GO
feature are supplied with a SmartKey with
integrated KEYLESS-GO function and a re-
movable KEYLESS-GO start / stop button.
With the KEYLESS-GO start/stop button
inserted and the SmartKey with
KEYLESS-GO present in the vehicle, press-
ing the KEYLESS-GO start/stop button

without the brake pedal depressed
corresponds to the various starter
switch positions (
page 315)


with the brake pedal firmly depressed
will start the engine (
page 360)If you wish or should there be a need to in-
sert the SmartKey with KEYLESS-GO in the
starter switch, the KEYLESS-GO start/stop
button can be easily removed by pulling it
out of the starter switch.
1KEYLESS-GO start/stop button
2Starter switch

Insert KEYLESS-GO start/stop
button1 into starter switch 2 (if not
inserted already).
i
The function of the SmartKey overrules the
KEYLESS-GO function.
i
The KEYLESS-GO start/stop button does
not need to be removed from the starter switch
when you leave the vehicle. However, always
take the SmartKey with KEYLESS-GO with you
when you leave the vehicle. As long as the
SmartKey with KEYLESS-GO is in the vehicle, the
vehicle’s electrical systems can be switched on
or the engine can be started using the
KEYLESS-GO start/stop button.
i
When you switch from SmartKey mode back
to KEYLESS-GO mode, the system requires
2 seconds of detection time before you can use
the KEYLESS-GO button as usual.

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.

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.

329 Controls in detailSeats
With the easy-entry/exit feature activated,
the steering wheel and driver’s seat will re-
turn to their last set memory position or a
factory-set maximum forward position
when you:

close the driver’s door with the ignition
switched on


insert the SmartKey into the starter
switch or press the KEYLESS-GO*
start/stop button (
page 317) once
with the driver’s door closed. With the easy-entry/exit feature activated
the steering wheel tilts upwards and the
driver’s seat moves a few inches to the
rear when you:


remove the SmartKey from the starter
switch,
or


open the driver’s door with the
SmartKey in starter switch position 0
or 1 or the KEYLESS-GO* start/stop
button (
page 317) in position 1.
!
Do not activate the easy-entry/exit feature
if the seat backrest is in an excessively reclined
position. Doing so could cause damage to front
or rear seats.
First move the seat backrest to an upright posi-
tion.
i
For safety reasons, the driver’s seat will not
return to its last set position with the easy-en-
try/exit feature activated if the system recogniz-
es the last set position as an extreme forward
position. Instead, the driver’s seat will remain at
or move to a factory-set maximum forward posi-
tion. To again fully return the driver’s seat toyour last set position or to memory position, ad-
just the seat to the desired position or press and
hold the respective memory position button
(
page 337).
i
The last set driver’s seat and steering wheel
positions are stored when


the ignition is switched off


the position is stored in memory
(page 336)
i
If the current position for the steering wheel
is in the uppermost tilt position, the steering
wheel will no longer be able to move upward
when the easy-entry/exit feature is activated.
If the current seat position falls into a factory-set
position range and the system recognizes the
current seat position to be rearward enough for
easy entry and exit, the driver’s seat will not
move to the rear when the easy-entry/ exit fea-
ture is activated.
The adjustment procedure is briefly interrupted
when the engine is started.Warning!
G
Let the system complete the adjustment
procedure before setting the vehicle in mo-
tion. All driver’s seat and steering wheel ad-
justments must be completed before setting
the vehicle in motion. Driving off with the
driver’s seat/steering wheel still adjusting
could cause the driver to lose control of the
vehicle.

330 Controls in detailSteering wheel
Steering wheel adjustment
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Switch on the ignition (
page 315) or
open the driver’s door.

Adjusting steering column in or out:
Move stalk forward or back in the direc-
tion of arrow1 until a comfortable
steering wheel position is reached with
your arms slightly bent at the elbow.

Adjusting steering column up or
down: Move the stalk up or down in the
direction of arrow2.
Make sure your legs can move freely
and all the displays (incl. malfunction
and indicator lamps) on the instrument
cluster are clearly visible.
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of
the vehicle.
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 steering
wheel adjustment feature can be operated
when the driver’s door is open. Therefore,
do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
i
The memory function (
page 336) lets you
store settings for the steering wheel together
with the settings for the exterior rear view mir-
rors and the seat positions.

331 Controls in detail
Steering wheel
Heated steering wheel*
The steering wheel heating warms up the
leather area of the steering wheel.
1Switching on
2Switching off
3Indicator lamp
Switch on the ignition (
page 315).

Switching on: Turn switc h a t the t ip of
stalk in the direction of arrow1.
The steering wheel is heated. Indicator
lamp3 comes on.

Switching off: T u r n s w i t c h a t t h e t i p o f
stalk in the direction of arrow2.
The steering wheel heating is turned
off. Indicator lamp3 goes out.
i
The steering wheel heating will not switch
on, when the temperature of the vehicle interior
is above 86°F (30°C).
i
Indicator lamp3 flashes or goes out


in case of power surge or undervoltage


in case of a steering wheel heating malfunc-
tion
i
The steering wheel heating switches off au-
tomatically:


when you remove the SmartKey from the
starter switch


on vehicles with KEYLESS-GO*, when you
switch off the ignition (
page 315) and
open the driver’s door


when the temperature of the vehicle interior
is above 86°F (30°C)


after approximately 30 minutes

343 Controls in detail
Lighting
Low beam headlamps
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.
Turn the switch toB.
The green indicator lampC in the
exterior lamp switch comes on.Manual headlamp mode
The low beam headlamps and parking
lamps can be switched on and off with the
exterior lamp switch. For exterior lamp
switch (
page 342).
Automatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of
the ambient light:


Low beam headlamps


Tail and parking lamps


License plate lamps


Side marker lamps
i
With the SmartKey removed from the starter
switch or the engine turned off with
KEYLESS-GO* and the driver’s door open, a
warning sounds if the parking lamps or low beam
headlamps are switched on.
The message: “Please switch off lights” appears
in the multifunction display.
i
With the daytime running lamp mode activat-
ed and the engine running, the low beam head-
lamps cannot be switched off manually.
For information on how to activate the daytime
running lamp mode, see “Daytime running lamp
mode” (
page 344).
Warning!
G
If the exterior lamp switch is set to*,

the headlamps may switch off unexpect-
edly when the system senses bright am-
bient light, for example light from
oncoming traffic.
If the exterior lamp switch is set to*,

the headlamps may switch off unexpect-
edly when the system senses bright am-
bient light, for example light from
oncoming traffic.


the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others, acti-
vate headlamps by turning exterior lamp
switch to B when driving or when traffic
and/or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from position * to B with the
vehicle at a standstill in a safe location.
Switching from * to B will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle’s lights at all
times.

344 Controls in detailLighting
Turn the exterior lamp switch to *.
With the SmartKey in starter switch po-
sition 1 or the KEYLESS-GO*
start/stop button pressed once, only
the parking lamps will switch on and off
automatically.
When the engine is running, the low
beam headlamps, the tail and parking
lamps, the license plate lamps, and the
side marker lamps will switch on and
off automatically.Daytime running lamp mode

Turn exterior lamp switch to
positionM or*.
When the engine is running, the low
beam headlamps are switched on. In
low ambient light conditions, the fol-
lowing lamps will switch on additional-
ly:

tail and parking lamps


license plate lamps


side marker lamps
For nighttime driving you should turn the
exterior lamp switch to positionB to
permit activation of the high beam head-
lamps.
Canada only
The daytime running lamp mode is manda-
tory and therefore in a constant mode.
When the engine is running, and you shift
from a driving position to positionN orP,
the low beam headlamps will switch off
with a 3-minute delay.When the engine is running, and you


turn the exterior lamp switch to
positionC, the parking lamps
switch on additionally.


turn the exterior lamp switch to
positionB, the manual headlamp
mode has priority over the daytime run-
ning lamp mode.
The corresponding exterior lamps
switch on (
page 622).
USA only
By default, the daytime running lamp mode
is deactivated. Activate the daytime run-
ning lamp mode using the control system,
see “Daytime driving lamps mode on/off
(USA only)” (
page 255).
When the engine is running, and you turn
the exterior lamp switch to position C
orB, the manual headlamp mode has
priority over the daytime running lamp
mode.
The corresponding exterior lamps switch
on (
page 622).
i
The front fog lamps and rear fog lamp can-
not be switched on manually with exterior lamp
switch in position*. To activate the fog
lamps, turn exterior lamp switch to
positionB and pull the exterior lamp switch
to first or second stop (
page 345).