engine MERCEDES-BENZ S-Class 2008 W221 Comand Manual

77 Safety and Security
Driving safety systems
PRE-SAFE
® Brake* (vehicles with
DISTRONIC Plus* only)
PRE-SAFE
® Brake* can assist you in mini-
mizing the risk of a rear-end collision with
a vehicle in front of you and in reducing the
severity of an accident. At speeds over ap-
prox 20 mph (30 km/h), it will


warn you of a possible collision


automatically begin to brake the vehi-
cle lightly in a speed range of up to
112 mph (180 km/h)


activate preventative occupant safety
measures (PRE-SAFE
®) (page 57)
Warning!
G
If you see the ESP
® warning lampv
flashing in the speedometer, proceed as fol-
lows:


While driving off, apply as little throttle
as possible


While driving, ease up on the accelera-
tor


Adapt your speed and driving style to
the prevailing road conditions
Failure to observe these guidelines could
cause the vehicle to skid.
The ESP
® cannot prevent accidents result-
ing from excessive speed.
!
Do not tow with one axle raised.
Otherwise the transfer case can be damaged,
which is not covered by the Mercedes-Benz Lim-
ited Warranty.
!
Performance testing must only be conduct-
ed on a two-axle dynamometer.
Otherwise the transfer case can be damaged,
which is not covered by the Mercedes-Benz Lim-
ited Warranty.
!
Because the ESP
® operates automatically,
the engine and the ignition must be shut off
(SmartKey in starter switch position0 or1 or
KEYLESS-GO start/stop button* in position0
or1) when the parking brake is being tested on a
brake test dynamometer.
Active braking action through ESP
® may other-
wise seriously damage the front or rear axle
brake system.
Operational tests with the engine running can
only be conducted on a two-axle dynamometer.
Warning!
G
PRE-SAFE
® Brake is a convenience system
designed to assist the driver during vehicle
operation. The responsibility for the vehicle
speed and the distance to the vehicle ahead,
including most importantly brake operation
to assure safe stopping distance, always re-
mains with the driver.


82 Safety and SecurityAnti-theft systemsImmobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey or SmartKey with KEYLESS-GO*
with you, and lock the vehicle. The engine
can be started by anyone with a valid
SmartKey or SmartKey with KEYLESS-GO*
that is left inside the vehicle.
Activating
With the SmartKey: Remove the
SmartKey from the starter switch.

With the KEYLESS-GO*: Turn off the
engine (
page 372) and open the driv-
er’s door.
Deactivating

Switch on the ignition (
page 370).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:

a door


the trunk


the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when


the vehicle is opened with the
mechanical key


a door is opened from the inside
To cancel the alarm after it has been trig-
gered, see “Canceling the alarm”
(
page 83).
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Starting the engine will also deactivate the
immobilizer.
In case the engine cannot be started (yet the ve-
hicle’s battery is charged), the system is not op-
erational. Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).

141 Control systems
COMAND telephone*
COMAND telephone*
Safety precautions
General notesCalls disconnected while the vehicle is
in motion
A call may be disconnected if:


there is insufficient network coverage


you move from one transmitter/receiv-
er area (cell) into another and no chan-
nels are free or the cell is full
Warning!
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving.
Whether or not prohibited by law, for safety
reasons, the driver should not use the cellu-
lar telephone while the vehicle is in motion.
Stop the vehicle in a safe location before
placing or answering a call.
If you nonetheless choose to use the mobile
phone
1 while driving, please use the hands-
free feature and be sure to pay attention to
the traffic situation at all times. Use the mo-
bile phone only when road, weather and traf-
fic conditions permit. Otherwise, you may
not be able to observe traffic conditions and
could endanger yourself and others.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approxima-
tely 14 m) every second.
1Observe all legal requirements.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.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.

189 Control systems
COMAND navigation (introduction)
Loading a DVD into the DVD changer
1Disc slot
2Magazine tray buttons 1 – 6

Switch on COMAND (
page 87).

Press one of the magazine tray
buttons2.
If a disc is loaded, it will be ejected.

Take disc out of slot 1.

Wait until LED for magazine button 2
which you pressed flashes quickly.

Slide DVD into slot 1 with printed side
facing upwards.
COMAND loads the DVD.
i
If you carry out the update with the engine
switched off and the vehicle battery has insuffi-
cient power, COMAND may automatically switch
off during the process in order to protect the bat-
tery. If this occurs, restart the update with the
engine running period. Similarly, if the SmartKey
position is unintentionally switched to 0, restart
the update.Warning!
G
Never leave the engine running in an en-
closed space. The exhaust gases contain
carbon monoxide. Inhaling exhaust gases
constitutes a health hazard and could lead
to loss of consciousness or even death.
i
Each magazine tray button 2 indicates the
status of the corresponding magazine tray by
means of an LED.


LED off = magazine tray is empty


LED constantly lit = magazine tray is loaded


LED flashes = CD/DVD changer requesting
disc to be loaded

276 Control systemsCOMAND automatic climate control
Changing air volume: Slide qmr or
rotate ymz.
or

Switching back to automatic mode:
Rotateymz and select “AUTO”.

Exiting menu: Press n, back
buttonL in the center console
(page 88) or slideomp.
The setting is saved.Central climate control menu via
COMAND
The central climate control menu is in the
center of the climate control settings.
When the automatic climate control is
switched on, you will see “on” in the cen-
tral menu. The following functions can only
be operated in the central climate control
menu via COMAND:
Select climate control settings
Cen-
tral menu.Switching cooling on or off
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.
Function
Page
Switching off cooling (“AC
OFF”)
276
Central climate control (“Mono”)
277
Footwell temperature
278
Air flow from air vents
279
Rear climate control*
279


289 Control systems
Instrument cluster control system
Menus
Trip (
page 291)
Navi (
page 292)
Audio (
page 294)
AMG
1 (page 296)
1S63AMG and S65AMG only.Commands/submenusStandard display
Showing route guidance in-
structions, current direction
traveled
Selecting radio station
Gear currently engaged
Engine oil temperature
Vehicle supply voltage
Fuel consumption statistics since start
Selecting satellite radio
channel
RACETIMER
Fuel consumption statistics since last
reset
Operating DVD changer/
audio CD/ audio DVD/MP3
Overall analysis
Resetting fuel consumption statistics
Operating video DVD
Lap analysis
Distance to emptyDigital speedometer

290 Control systemsInstrument cluster control system
Telephone* (
page 299)
Assistance* (
page 303)
Service (
page 304)
Settings (
page 305)
Commands/submenusDialing a number from the
phone book
Displaying the distance graph-
ic*, DISTRONIC Plus*
Calling up vehicle malfunction,
warning and system status
messages stored in memory
Setting daytime running lamp
mode (USA only)
Redialing
Activating/deactivating
PRE-SAFE
® Brake*
(vehicles with
DISTRONIC Plus* only)
Checking tire inflation pres-
sure
Switching additional speedome-
ter on or off
Answering a call
Switching on or off Rear View
Camera* automatically
Calling up maintenance ser-
vice display
Switching on or off radar
sensors*
Ending a call or rejecting an in-
coming call
Switching on or off Blind Spot
Assist*
Checking engine oil level*

291 Control systems
Instrument cluster control system
Trip menu
In the “Trip” menu, you can show an addi-
tional display for the speedometer and call
up or reset your vehicle’s statistical data.
Standard display
In the standard display, the trip odometer
and main odometer are shown in the mul-
tifunction display.
Press ( or & to select the “Trip”
menu.
1Main odometer
2Trip odometerFuel consumption statistics since start

Press ( or & to select the “Trip”
menu.

Press % to select “From Start”.
1Distance driven since start
2Time elapsed since start
3Average speed since start
4Average fuel consumption since startFuel consumption statistics since last
reset

Press ( or & to select the “Trip”
menu.

Press % or $ to select “Since
Reset”.
1Distance driven since last reset
2Time elapsed since last reset
3Average fuel consumption since last re-
set
4Average speed since last reset
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The menu overview can be found on
(
page 289).
i
All values that are based on the last start are
reset when you turn off the vehicle’s engine for
more than four hours (
page 424).
i
If you turn the SmartKey to position1 or2
again during this time, the values will not be re-
set. After 9 999 hours or 99 999 miles (kilome-
ters), the fuel consumption statistics since start
are automatically reset.
i
After 9 999 hours or 99 999 miles (kilome-
ters), the fuel consumption statistics since last
reset are automatically reset.

296 Control systemsInstrument cluster control systemAMG menu
The main screen of the AMG menu shows
you

the gear currently engaged


the engine oil temperature


the vehicle supply voltage

Press ( or & to select the
“AMG” menu.
1Gear indicator
2Upshift indicator “up”
3Engine oil temperature
4Vehicle supply voltageIf the engine reaches the overspeed range
in the manual shift program, you will see
“up” 2 next to gear indicator 1 as a re-
minder to upshift.
Use buttons % or $ to select the fol-
lowing functions in the AMG menu:RACETIMER
The RACETIMER allows you to time and
save driving stretches in hours, minutes
and seconds.

Press ( or & to select the
“AMG” menu.

Press % to select the RACETIMER.
i
This function is only available in S 63 AMG
and S 65 AMG.
i
The engine oil temperature will be shown in
blue if the engine oil temperature has not yet
reached 176°F (80°C). During this time, avoid
driving at full engine speed.
Function
Page
RACETIMER
296
Overall analysis
298
Lap analysis
299
Warning!
G
The RACETIMER feature is for use only on
roads and in conditions where high speed
driving is permitted. Racing on public roads
is prohibited under all circumstances and
the driver is and must always remain re-
sponsible for following posted speed limits.

297 Control systems
Instrument cluster control system
1Gear indicator
2RACETIMER
3Seconds display
4Lap
Starting RACETIMER: Press æ.

Displaying intermediate time:
Pressç.
The intermediate time is shown for
5 seconds.

Stopping RACETIMER: Press æ.

To select a different display, press
$, ( or &.Saving lap time and starting a new lap

Press buttonç while the timer is
running.
The intermediate time will be shown for
5 seconds.

Press buttonç within 5 seconds.
The intermediate time shown will be
saved as a lap time.
The RACETIMER begins timing the new
lap. The new lap begins to be timed as
soon as the intermediate time is called
up.
1Gear indicator
2RACETIMER
3Best lap time
i
You can start the RACETIMER when the en-
gine is running or the starter switch is in
position2 (
page 370).
i
While the RACETIMER is being displayed,
you cannot adjust the audio volume using but-
tons æ or ç.
i
When you stop the vehicle and turn the
Smartkey to position 1 (
page 370) or, in vehi-
cles with KEYLESS-GO*, turn off the engine and
do not open the driver’s door, the RACETIMER
stops timing. Timing is resumed when you switch
the ignition back on or restart the engine and
then press æ button.
i
When you switch on the Night View Assist*
(
page 491) while the RACETIMER is operating,
the RACETIMER will continue to run in the back-
ground but cannot be operated with the multi-
function steering wheel buttons.
To stop the RACETIMER, switch off the Night
View Assist* first.
i
You can save up to 16 laps.