service MERCEDES-BENZ R500 2006 W251 User Guide

85 Safety and Security
Occupant safety
Occupant Classification System
The Occupant Classification System (OCS)
automatically turns the front passenger
front air bag on or off based on the classi-
fied occupant weight category determined
by weight sensor readings from the front
passenger seat.
Occupants must sit properly belted in a
nearly upright position with their back
against the seat backrest and feet on the
floor to be correctly classified. If the occu-
pant’s weight is transferred to another
object in the vehicle (e.g. by leaning on
armrests), the OCS may not be able to
properly approximate the occupant’s
weight category.Furthermore, the occupant weight may ap-
pear to increase or decrease due to
objects hanging on the seat, other passen-
gers pushing on the seat, objects lodged
underneath the seat or stuffed between
seat and middle console or between seat
and door or due to objects applying pres-
sure on the back of the seat. Always make
sure the seat has clearance in all direc-
tions at all times.
Both, driver and the front passenger
should always use the 59 in-
dicator lamp as an indication of whether or
not the front passenger is properly posi-
tioned.
When the child restraint is not in use, re-
move it from the vehicle or secure it with the
seat belt to prevent the child restraint from
becoming a projectile in the event of an ac-
cident.
Do not leave children unattended in the ve-
hicle, even if the children are secured in a
child restraint system. Unsupervised chil-
dren in a child restraint system may use
vehicle equipment and may cause an acci-
dent and / or serious personal injury.
iThe system does not deactivate the
front passenger side impact air bag,
the window curtain air bag, and the
emergency tensioning device.
iIf your seat, including your trim cover
and cushion needs to be serviced in
any way, take the vehicle to an autho-
rized Mercedes-Benz Light Truck
Center.
Only seat accessories approved by
Mercedes-Benz may be used.

105 Safety and Security
Anti-theft systems
Arming the alarm system
The alarm system is armed after you have
locked the vehicle with the SmartKey or
SmartKey with KEYLESS-GO*.
The alarm system indicator lamp is located
to the lower left of the hazard warning
flasher.1Alarm system indicator lamp

Make sure all doors and the tailgate are
closed.

Lock the vehicle (
page 67).
The turn signal lamps flash three times
to indicate that the vehicle is locked.
The alarm system is armed within ap-
proximately 10 seconds. Alarm system
indicator lamp 1 flashes.
iIf the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
Tele Aid* system (
page 311) provid-
ed Tele Aid* service was subscribed to
and properly activated, and that neces-
sary cellular service and GPS coverage
are available.
iIf the turn signal lamps do not flash
three times, one of the following ele-
ments may not be properly closed:

a door


the tailgate
Close the respective element and lock
the vehicle again.

106 Safety and SecurityAnti-theft systemsDisarming the alarm system
Unlock the vehicle (
page 36).
The turn signal lamps flash once to
indicate that the vehicle is disarmed.Canceling the alarm
To cancel the alarm:
With the SmartKey

Insert the SmartKey in the starter
switch.
or

Press theŒ or ‹button on the
SmartKey.
With KEYLESS-GO*

Grasp an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft (1 m) of the vehicle.
or

Press the KEYLESS-GO start / stop
button (
page 40).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
iThe alarm system will rearm automati-
cally again after approximately
40 seconds if neither a door nor the
tailgate is opened.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is
lifted on one side.
If the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
Tele Aid* system (
page 311) provid-
ed Tele Aid* service was subscribed to
and properly activated, and that neces-
sary cellular service and GPS coverage
are available.

161 Controls in detail
Control system
Control system
The control system is activated as soon as
the SmartKey in the starter switch is
turned to position1 (
page 38) or as
soon as the KEYLESS-GO start / stop but-
ton* is in position1 (page 39). The con-
trol system enables you to


call up information about your vehicle


change vehicle settings
For example, you can use the control sys-
tem to find out when your vehicle is next
due for maintenance service, to set the
language for messages in the instrument
cluster display, and much more.
The control system relays information to
the multifunction display.
Multifunction display
1Trip odometer
2Main odometer
3Gear position indicator
4Current transmission program mode
5Status indicator (outside temperature
or digital speedometer)
For more information on menus displayed
in the multifunction display, see “Menus”
(page 164).
iThe displays for the audio systems
(radio, CD player) will appear in English,
regardless of the language selected.
Warning!
G
A driver’s attention to the road and traffic
conditions must always be his/her primary
focus when driving.
For your safety and the safety of others, se-
lecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions per-
mit it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.

165 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Standard display
AUDIO
NAV*
Airmatic/
Compass
Vehicle status message
memory
(page 168)
(page 170)
(page 172)
(page 172)
(page 173)
Commands/submenusTrip- and main odometer
Selecting radio station
Show route guidance
instructions, current
direction traveled
Airmatic*
Calling up vehicle malfunction,
warning and system status
messages stored in memory
Checking tire inflation pressure*
Selecting satellite ra-
dio station* (USA only)
Compass
Checking coolant temperature
Operating CD player
Calling up digital speedometer or
outside temperatureCalling up maintenance service
indicatorChecking engine oil leveliThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays. The first func-
tion displayed in each menu will auto-
matically show you which part of the
system you are in.

168 Controls in detailControl systemStandard display menu
In the standard display, the main odometer
and the trip odometer appear in the multi-
function display.
1Trip odometer
2Main odometer
If you see another display, press
buttonè orÿ repeatedly until the
standard display appears.
You can select the functions in the
standard display menu with
buttonkorj.The following functions are available:Checking coolant temperature
Function
Page
Checking tire inflation pressure*
371
Checking coolant temperature
168
Calling up digital speedometer or
outside temperature
169
Calling up maintenance service
indicator
393
Checking engine oil level
(R 500 only)
347
Warning!
G


Driving when your engine is badly over-
heated can cause some fluids which
may have leaked into the engine com-
partment to catch fire. You could be se-
riously burned.


Steam from an overheated engine can
cause serious burns and can occur just
by opening the hood. Stay away from
the engine if you see or hear steam com-
ing from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.

171 Controls in detail
Control system
Selecting satellite radio station*
(USA only)
The satellite radio is treated as a radio
application.
Select satellite radio with the
corresponding soft key on the Modular
COMAND System.
1SAT mode
2Channel name or number

Press buttonk orj repeatedly
until the desired channel is found.Operating the CD player

Turn on the Modular COMAND System
and select CD. Refer to separate
Modular COMAND System operating
instructions.

Press buttonè orÿ repeatedly
until the settings for the CD currently
being played appear in the multifunc-
tion display.
1Current CD (for CD changer*)
2Current track

Press buttonk orj repeatedly
until the desired track is selected.
iFeature description is based on
preliminary information available at
time of printing.
Additional optional satellite radio
equipment and a subscription to satel-
lite radio service provider are required
for satellite radio operation. At time of
printing, no date for the availability of
optional equipment required for satel-
lite radio operation had been set.
Contact an authorized Mercedes-Benz
Light Truck Center for details and
availability for your vehicle.
For more information, refer to separate
Modular COMAND System operating
instructions.


295 Controls in detail
Useful features
Closing CD-changer*
1CD-changer
Gently push CD-changer 1 up in direc-
tion of arrow until it engages.
For information on CD-changer operation,
see separate Modular COMAND System
operating instructions.Locking and unlocking the glove box
separately
You can lock the glove box separately, e.g.
when the vehicle is in the shop for service.

Take the mechanical key out of the
SmartKey or SmartKey with
KEYLESS-GO* (
page 459).
1Unlocking glove box
2Locking glove box

Insert mechanical key into glove box
lock.

Turn mechanical key to position 2.

Turn mechanical key to position 1 to
unlock the glove box.iThe separate locking status of the
glove box can be canceled by means of
the mechanical key only.

314 Controls in detailUseful featuresThe Tele Aid system is available if

it has been activated and is operation-
al. Activation requires a subscription
for monitoring services, connection
and cellular air time


vehicle battery power is available


the relevant cellular phone network
and GPS signals are available and pass
the information on to the response cen-
terInitiating an emergency call manually
1Cover
2SOS button

Briefly press on cover1.
The cover opens.

Press SOS button2 briefly.
The indicator lamp in SOS button2
will flash until the emergency call is
concluded.

Wait for a voice connection to the
Response Center.

Close cover1 after the emergency
call is concluded.
iLocation of the vehicle on a map is only
possible if the vehicle is able to receive
signals from the GPS satellite network
and pass the information on to the
Response Center.
Warning!
G
If the indicator lamp in the SOS button is
flashing continuously and there was no
voice connection to the Response Center
established, then the Tele Aid system could
not initiate an emergency call (e.g. the rele-
vant cellular phone network is not available).
The message
Call failed
appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be sum-
moned by other means.

316 Controls in detailUseful featuresThe Mercedes-Benz Roadside Assistance
dispatcher will either dispatch a qualified
Mercedes-Benz technician or arrange to
tow your vehicle to the nearest
Mercedes-Benz Light Truck Center. For
services such as labor and/or towing,
charges may apply. Refer to the Roadside
Assistance Manual for more information.
These programs are only available in the
USA:

Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire with the
vehicle spare tire are obtainable.
iThe indicator lamp on the Roadside
Assistance button• remains illumi-
nated in red for approximately
10 seconds during the system
self-check after switching on the igni-
tion (together with the SOS button and
the Information button¡).
See system self-check (
page 312) if
the indicator lamp does not come on in
red or stays on longer than
approximately 10 seconds.
If the indicator lamp on the Roadside
Assistance button• is flashing
continuously and there was no voice
connection to the Response Center
established, then the Tele Aid system
could not initiate a Roadside Assis-
tance call (e.g. the relevant cellular
phone network was not available). The
message
Call failed
appears in the
multifunction display.
Roadside Assistance calls can be
terminated using thet button on
the multifunction steering wheel or the
END Button on the Modular COMAND
System.