2008 MERCEDES-BENZ S550 4MATIC lamp

244 Control systems
COMAND vehicle menu
Select “Vehicle”
“Vehicle”
“Loca-
tor Lighting”.
A checkmark appears when the locator
lighting is switched on.
Confirming selection: Press n.
To activate locator lighting:
Make sure the function “Locator Light-
ing” is set.
Turn the exterior lamp switch to
position* when exiting the vehicle.
Exterior mirror convenience settings
In the “Exterior Mirror Convenience Set-
tings” menu, you can switch the following
exterior mirror functions on or off:

Exterior mirrors automatically fold in
when the vehicle is locked

Exterior mirror on front passenger’s
side automatically tilts downward
when the vehicle is reversing
Select “Vehicle”.
The main area is active.
Selecting “Exterior Mirror Conve-
nience Settings” menu: Slide omp or
rotate ymz.
Confirming selection: Press n.
Selecting “Fold in automatically
when locking” or “Lower mirror
when reversing”: Rotateymz.
Confirming selection: Press n.
Slide omp to exit.
or
iThe components and operating principles of
COMAND can be found on (
page 85).


267 Control systems
Instrument cluster control system
Telephone* (page 276)Assistance* (page 279)Service (page 280)Settings (page 281)
Commands/submenus
Dialing a number from the
phone bookDisplaying the distance graph-
ic*, DISTRONIC Plus*
(USA only)Calling up vehicle malfunction,
warning and system status
messages stored in memorySetting daytime running lamp
mode (USA only)
RedialingActivating/deactivating
PRE-SAFE® Brake* (USA only)
Checking tire inflation pres-
sureSwitching additional speedome-
ter on or off
Answering a callSwitching on the Dynamic
Rear View Monitor*
automaticallyCalling up maintenance ser-
vice displaySwitching radar sensors* on or
off (USA only)
Ending a call or rejecting an in-
coming callChecking engine oil level*

281 Control systems
Instrument cluster control system
If conditions have occurred causing
status messages to be recorded, the
number of messages appears in the
multifunction display: “2 Messages”.
Press % or $ to select the mes-
sage.
Press # to confirm.
Checking tire inflation pressure
For information about checking tire infla-
tion pressure (
page 561).
Activating Run Flat Indicator
(Canada only)
For information about activating Run Flat
Indicator (
page 565).Calling up the maintenance service in-
dicator display
For information about calling up the main-
tenance service indicator display
(
page 582).
Checking engine oil level (S 600 and
S65AMG)
For information about checking engine oil
level (
page 543).
Settings menu
In the “Settings” menu, you can:

switch the daytime running lamps on or
off (USA only)

switch the additional speedometer on
or off

switch the radar sensors* on or off
(USA only)Setting daytime running lamp mode
(USA only)
Press ( or & to select the “Set-
tings” menu.
Press % or $ to select the “Day-
time driving lamps” function.
Press #.
Press # again if you would like to
change the current status.
Depending on the previous status, the
daytime running lamps will be switched
on or off.
iSee the “Practical hints” section for mal-
function and warning messages (
page 612).
iIf you turn the SmartKey in the starter
switch to position0 and then back to position2,
all messages will be deleted from the message
memory.
iThe menu overview can be found on
(
page 266).
iThis function is not available in countries
where the daytime running lamp mode is manda-
tory and therefore in a constant mode.

282 Control systems
Instrument cluster control system
With “Daytime driving lamps” mode select-
ed and the exterior lamp switch at position
M or *, the low beam headlamps
are switched on when the engine is run-
ning.
In low ambient light conditions the follow-
ing lamps will switch on additionally:

Parking lamps

Tail lamps

License plate lamps

Side marker lamps
For more information on the daytime run-
ning lamp mode (
page 373).Showing or hiding additional
speedometer
You can have an additional digital speed-
ometer shown on the multifunction dis-
play. The speed is shown in the unit of
kilometers/hour (USA) or miles/hour
(Canada).
Press ( or & to select the “Set-
tings” menu.
Press % or $ to select the “Add.
speedometer” function.
Press #.
Press # again if you would like to
change the current status.
Depending on the previous status, the
additional speedometer will be
switched on or off.Switching radar sensors* on/off
If your vehicle is equipped with DISTRONIC
Plus*, BAS Plus*, or Park Assist* it is
equipped with a radar sensor system
which you can switch on and off.
When travelling in Canada in a vehicle not
registered in Canada, you must switch off
the radar sensor system. Canadian law
does not permit the use of the radar sensor
system for vehicles from outside of Cana-
da. When you switch off the radar sensor
system, the following functions are deacti-
vated:
BAS Plus* (page 69)

DISTRONIC Plus* (page 424)

Park Assist* (page 448)

PRE-SAFE® Brake* (page 76)
iIf you turn the exterior lamp switch to anoth-
er position, the corresponding lamp(s) will
switch on.
iMake sure that the light switch is set
toB or * when you switch off the day-
time running lamps while driving at night.

332 Controls in detail
Locking and unlocking
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks,
when set to factory settings (
page 333):

the doors

the trunk

the fuel filler flap
SmartKey with remote control
1‹ Lock button
2ŠOpening button for trunk
(
page 479)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6ÂPanic button (
page 65)
!To prevent possible malfunction, avoid ex-
posing the SmartKey to high levels of electro-
magnetic radiation.
Warning!G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s un-
supervised access to a vehicle could result
in an accident and/or serious personal inju-
ry.
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.

333 Controls in detail
Locking and unlocking
Factory setting
Global unlocking: Press buttonŒ.

All turn signal lamps flash once.

An acoustic signal sounds once
(if equipped and feature activated).

The locking knobs in the doors
move up.

The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically
and rearm 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/unlocking switch is
not activated
iUSA 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.
iCanada 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.
iYou can also open and close the door win-
dows and tilt/sliding sunroof, or the tilt/ sliding
panel* using the SmartKey (
page 385).
!If you cannot lock or unlock the vehicle with
the SmartKey, then either the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle batteries are drained.

Check the batteries in the SmartKey and re-
place them if necessary (
page 676).

Use the mechanical key to unlock the driv-
er’s door (
page 671) and the trunk
(
page 672).

Use the mechanical key to lock the driver’s
door (
page 672) and the trunk
(
page 484).

Have the vehicle batteries and their connec-
tions checked (
page 692).
If the SmartKey is malfunctioning, contact Road-
side Assistance or an authorized Mercedes-Benz
Center.
iYour vehicle may be equipped with an
acoustic lock and unlock confirmation signal fea-
ture. If your vehicle is equipped with this feature
and the feature is activated, an acoustic signal
will sound when the vehicle is locked or unlocked
using the SmartKey. To determine whether or not your vehicle is
equipped with this feature, contact an autho-
rized Mercedes-Benz Center. If equipped and
you wish to activate or deactivate the feature, or
adjust its signal volume, also contact an autho-
rized Mercedes-Benz Center.

334 Controls in detail
Locking and unlocking
Global locking: Press button‹.
With the trunk and both doors closed:

All turn signal lamps flash three
times.

An acoustic signal sounds three
times (if equipped and feature acti-
vated).

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 press-
ing buttonŒ 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 332)
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.

An acoustic signal sounds once
(if equipped and feature activated).
For more information, see “Factory
setting” (
page 333).

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.

An acoustic signal sounds once
(if equipped and feature activated).

The locking knobs in the doors
move up.

The anti-theft alarm system is dis-
armed.
Global locking: Press button‹.
With the trunk and both doors closed:

All turn signal lamps flash three
times.

An acoustic signal sounds three
times (if equipped and feature acti-
vated).

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 332)
flashes twice.

335 Controls in detail
Locking and unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote control and a removable
mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys with
KEYLESS-GO are of different color to help
distinguish each SmartKey with
KEYLESS-GO unit.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked every time you grasp an outside
door handle.
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.The SmartKey with KEYLESS-GO centrally
locks and unlocks, when set to factory set-
tings (
page 338):

the doors

the trunk

the fuel filler flap
SmartKey with KEYLESS-GO
1‹ Lock button
2ŠOpening button for trunk
(
page 479)
3Locking tab for mechanical key
4ΠUnlock button
5Battery check lamp
6ÂPanic button (
page 65)
iWhen any outside door handle other than
the driver’s outside door handle is grasped, the
vehicle is centrally unlocked.
!To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
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. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
Children 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 could release the electron-
ic parking brake, thereby putting them-
selves 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.