2007 MERCEDES-BENZ S550 Using key

305 Controls in detail
Locking and unlocking
Factory setting
Global unlocking: Press buttonŒ.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of un-
locking if:


neither a door nor the trunk is opened


the SmartKey is not inserted in the
starter switch


the central locking switch is not acti-
vated

Global locking: Press button‹.
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs in the doors move down.
The anti-theft alarm system is armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressingŒ only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 304)
flashes twice.
The SmartKey will then function as fol-
lows:

Unlocking driver’s door and fuel fill-
er flap: Press buttonΠonce.
All turn signal lamps flash once. The
locking knob in the driver’s door moves
up. The anti-theft alarm system is dis-
armed.

Global unlocking: Press buttonŒ
twice.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
i
USA only:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
Canada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
You can also open and close the door win-
dows and tilt/sliding sunroof, or the tilt/ sliding
panel* using the SmartKey (
page 355).


307 Controls in detail
Locking and unlocking
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. It is possible for children
to open a locked door from the inside, which
could result in an accident and/or serious
personal injury.
They could start the vehicle with a valid
SmartKey with KEYLESS-GO left in the vehi-
cle or with the KEYLESS-GO button on the
starter switch, or they could release the
electric parking brake, thereby putting
themselves and others in danger. Switch off
the engine and take the SmartKey with
KEYLESS-GO with you even if you are only
leaving the vehicle for a short while.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
or trunk lid opening when closing a door or
the trunk. Be especially careful when small
children are around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.i
USA only:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
Canada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
You can also open and close the door win-
dows and tilt/sliding sunroof, or the tilt/ sliding
panel* using the SmartKey with KEYLESS-GO
(
page 355).

308 Controls in detailLocking and unlockingImportant notes on using KEYLESS-GO

You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 304).
The starter switch is under the
KEYLESS-GO button. Pull the
KEYLESS-GO button out in order to ac-
cess the starter switch.


You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with button ‹).


Always carry the SmartKey with
KEYLESS-GO with you.


Never store the SmartKey with
KEYLESS-GO together with:

Electronic items such as a mobile
phone or another SmartKey with
KEYLESS-GO


Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.


To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft. (1 m) of a door or the
trunk lid.


In order to start the engine with the
SmartKey with KEYLESS-GO:

The SmartKey with KEYLESS-GO
must be located in the vehicle.


The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.


If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle then cannot be locked or
the engine started via the KEYLESS-GO
system.


If the SmartKey with KEYLESS-GO is re-
moved from the vehicle (e.g. if passen-
ger exits the vehicle with the SmartKey
with KEYLESS-GO)


when pressing the KEYLESS-GO
start/stop button or trying to lock
the vehicle with the outside door
handle the message “Key not recog-
nized” appears in the multifunction
display


with the engine running, the mes-
sage “Key not recognized” appears
in the multifunction display while
driving off.
Find the SmartKey or change its
present location immediately
(e.g. place it on the front passenger
seat or insert it in shirt pocket).


If you have started the engine with the
KEYLESS-GO start/stop button
(page 317), you can turn it off again
with:


the KEYLESS-GO start/stop button


the SmartKey inserted in the starter
switch, when the automatic trans-
mission is in positionP

310 Controls in detailLocking and unlockingSelective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you, grasp the driv-
er’s outside door handle only the driver’s
door and the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about 6 seconds un-
til battery check lamp5 (
page 306)
flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:

Unlocking driver’s door and fuel fill-
er flap: Grasp the driver’s outside door
handle.
All turn signal lamps flash once. The
locking knob in the driver’s door moves
up. The anti-theft alarm system is dis-
armed.

Global unlocking: Grasp any outside
door handle other than the driver’s out-
side door handle.All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.

Global locking: close all doors and
touch outside of door handle1. Do
not keep your hand in the door handle
recess.
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs in the doors move down.
The anti-theft alarm system is armed.

Restoring to factory setting: Press
and hold buttonsŒ and‹ si-
multaneously for about 5 seconds until
battery check lamp5 (
page 306)
flashes twice.Global locking using lock button on
trunk lid
1Lock button on trunk lid

Close all doors and press lock
button1.
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs in the doors move down.
The anti-theft alarm system is armed.
i
You can also lock the vehicle using the lock
button on trunk lid (
page 310) or, vehicles
with trunk opening/closing system*,
KEYLESS-GO locking/closing switch
(
page 440).
i
To prevent a possible inadvertent lockout,
the trunk will open automatically if a SmartKey
with KEYLESS-GO is recognized inside the vehi-
cle or in the trunk.

311 Controls in detail
Locking and unlocking
Checking batteries in the SmartKey or SmartKey with KEYLESS-GO

Press button‹ orŒ.
The battery check lamp (
page 304)
(
page 306) comes on briefly to indi-
cate that the SmartKey or SmartKey
with KEYLESS-GO batteries are in or-
der.Loss of the SmartKey or SmartKey with
KEYLESS-GO
If you lose your SmartKey, SmartKey with
KEYLESS-GO or mechanical key, you
should do the following:
Have the SmartKey or SmartKey with
KEYLESS-GO deactivated by an autho-
rized Mercedes-Benz Center.

Report the loss of the SmartKey,
SmartKey with KEYLESS-GO or the me-
chanical key immediately to your car
insurance company.

Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
i
You can also lock the vehicle using the out-
side door handle (
page 309) or, vehicles with
trunk opening/closing system*, KEYLESS-GO
locking/closing switch (
page 440).
!
If you cannot lock or unlock the vehicle with
the SmartKey or SmartKey with KEYLESS-GO,
then either the batteries in the SmartKey or
SmartKey with KEYLESS-GO are discharged, the
SmartKey or SmartKey with KEYLESS-GO is mal-
functioning or the vehicle batteries are drained.


Check the batteries in the SmartKey or
SmartKey with KEYLESS-GO and replace it
them necessary (
page 619).


Use the mechanical key to unlock the driv-
er’s door (
page 614) and trunk
(
page 615).


Have the vehicle batteries and their connec-
tions checked (
page 634).If the SmartKey or SmartKey with KEYLESS-GO
is malfunctioning, contact an authorized
Mercedes-Benz Center.
!
If the battery check lamp does not come on
briefly during check, the SmartKey or SmartKey
with KEYLESS-GO batteries are discharged.
Replace the batteries (
page 619).
You can obtain the required batteries at any au-
thorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing button‹ or
Πwill lock or unlock the vehicle accordingly.

314 Controls in detailLocking and unlockingLocking and unlocking from the inside
You can lock or unlock the doors and the
trunk from the inside using the central
locking or unlocking switch. This can be
useful, for example, if you want to lock the
vehicle before starting to drive.
The fuel filler flap will not be locked or un-
locked with the central locking or unlock-
ing switch, respectively.1Central unlocking switch
2Central locking switch

Locking: Press switch ‹.
If the front passenger door is closed,
the vehicle locks.

Unlocking: Press switch Œ.
The vehicle unlocks.
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
You can open a locked door from the inside.
Open door only when conditions are safe to do
so.
If the vehicle was previously centrally locked
with the SmartKey or the with KEYLESS-GO*, it
will not unlock using the central unlocking
switch1.
If the vehicle was previously locked with the cen-
tral locking switch2:


While in the global remote control mode, the
vehicle is unlocked completely when a door
is opened from the inside.


While in the selective remote control mode,
only the door opened from inside is un-
locked.

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.

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.