warning MERCEDES-BENZ R-Class 2008 W251 Comand Manual

87 Rear Audio/Video*
Rear Seat Entertainment (RSE) operation* (except CLK-Class)

Rear Seat Entertainment (RSE) operation* (except CLK-Class)
Tips on caring for your DVDs
Treat DVDs with care to prevent
malfunctions during playback.
Do not scratch, touch or soil your
DVDs.
Do not attach labels to or write on your
DVDs.
From time to time, clean your DVDs
with a commercially available cleaning
cloth. Never wipe circularly, but in a
straight line from inside to outside.
After use, put your DVDs into the DVD
box.
Protect your DVDs from high
temperatures and direct sunlight.
WarningG
The RSE CD/DVD player is a Class 1 laser
product. There is a danger of invisible laser
radiation when you open or damage the cov-
er.
Do not remove the cover. The RSE CD/DVD
player does not contain any parts which can
be serviced by the user. For safety reasons,
have any necessary service work performed
by qualified personnel.
WarningG
The driver should not wear a Rear Seat
Entertainment headset while operating the
vehicle under any circumstances. The use of
a headset while driving the vehicle could
drastically impair the ability to react to
audible traffic conditions (e.g. emergency
sirens from police/fire/ambulance, another
driver’s horn, etc.).
WarningG
When not in use, headsets or external video
sources should be stored in a safe location
(e.g. one of the vehicle’s storage
compartments) so that they are not loose
within the passenger compartment during
braking, vehicle maneuvers or a traffic
accident. Objects moving within the
passenger compartment could cause
serious personal injury to vehicle
occupants.
WarningG
Due to a potential choking hazard, wired
headset usage by children should only occur
with adult supervision.
General information on CD/DVD
operation

112 Rear Audio/Video*
Rear Seat Entertainment (RSE) operation* (except CLK-Class)
The remote control is operated with two
batteries type AAA 1.5 V. If you press any
button on the remote and the LED does not
light or is red in color, discharged batteries
are most likely the cause.
Remove the cover h of the battery
compartment f on the back of the
remote control.
Press the retainer clip g in the
direction of the arrow and remove
the cover h.
Remove batteries k.
Insert the new batteries. Please make
sure you insert the batteries in the
correct polarity direction (+/-).
Left battery:
Plus (+) must point upward.
Right battery:
Plus (+) must point downward.
Insert the cover h with the location
lugs j into the battery compartment
f and then snap the retainer clip g
into the compartment.
Replacing remote batteries
WarningG
Keep batteries out of the reach of children.
Immediately seek medical help if a child
swallows a battery. Batteries are not to be
short-circuited, dismantled or thrown into
fire.
Environmental NoteH
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.

122 Telephone*
Important notes

Important notes
In chapter “Telephone”, you will find de-
tailed information regarding the tele-
phone*, including emergency call.
1 Observe all legal requirements
WarningG
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle. Whether or not prohibited by law, for
safety reasons, the driver should not use the
cellular telephone while the vehicle is in mo-
tion. Stop the vehicle in a safe location be-
fore answering or placing a call.
If you nonetheless choose to use the cellular
phone while driving, please use the hands-
free device and be sure to pay attention to
the traffic situation at all times. Use the cel-
lular phone
1 only when road, weather and
traffic conditions permit.
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e.
without being connected to an external an-
tenna) from inside the vehicle while the en-
gine is running. Doing so could lead to
malfunction of the vehicle’s electronic sys-
tems, possibly resulting in an accident and
personal injury.
WarningG
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only be
used inside the vehicle if they are connected
to a separate exterior antenna that has been
approved by Mercedes-Benz.

127 Telephone*
Telephone operation
You can make an emergency call to an
emergency rescue station with a mobile
communication network.
The emergency call will be placed as long
as the corresponding mobile communica-
tion network is available. To do this, switch
the telephone on if you have not already
done so.
TDMA or CDMA mobile phone
The emergency call will also be placed
if the phone is locked (
page 128).
GSM mobile phone
If no SIM card is in the phone or SIM
PIN is not entered, you can only make
an emergency call at the mobile phone.
Emergency calls may not be possible with
all mobile phone networks or if certain net-
work services and/or telephone functions
are active. Check with your local network
operating company.
If you cannot make an emergency call, you
must initiate rescue measures yourself.
Emergency call “911”
i
This function places a call to the local
911 provider. It does not initiate a
Tele Aid* call.
WarningG
The 911 emergency call system is a public
service. Using it without due cause is a crim-
inal offense.

130 Telephone*
Telephone operation
If no SIM card is in the telephone, the mes-
sage
Please insert SIM card (Emer-
gency Call 911 only possible
with phone)
appears.
Insert a SIM card. Refer to the mobile
phone operator’s manual.
Entry incorrect:
You will hear a warning sound. The mes-
sage
Code incorrect will appear.
You need to re-enter your code.
Entering the PUK
If you enter your code incorrectly three
times in a row, you need to enter the PUK
number.The PUK can only be entered at the mobile
phone. Refer to the mobile phone
operator’s manual.When the COMAND is switched on, you
can switch to telephone operation from
any other system (e.g. radio):
Press a.
The Telephone menu will appear.
Telephone menu
!
If the code is entered incorrectly three
times in a row, the SIM card will be
blocked. The message
SIM-card
blocked
is displayed briefly. After that
the message
PIN blocked. Please
enter PUK on cell phone
is
displayed.
i
The PUK number is provided by your
telephone service provider.
Switching to telephone operation

142 Navigation*
Important notes

Important notes
WarningG
For safety reasons, you should only enter a
destination when the vehicle is stationary.
When the vehicle is in motion, a passenger
should enter the destination. Study manual
and select route before driving.
Do not watch display screen or operate but-
tons while the vehicle is in motion - let voice
instructions guide you. Stop at a safe loca-
tion before using buttons or making correc-
tions.
Traffic regulations always have priority over
any route recommendations given.
Bear in mind that at a speed of just
30 m.p.h. (approximately 50 km/h), your
car is covering a distance of 44 feet (approx-
imately 14 m) every second.
The route calculated by COMAND is a rec-
ommendation on how to best reach your se-
lected destination.
During route guidance, you will not receive
any information on
Traffic lights
Stop and yield signs
Parking or stopping zones
One-way streets
Narrow bridges
Similar traffic regulation data
You should therefore always strictly observe
traffic regulations while driving. Drive care-
fully and always obey traffic laws and road
signs even if they contradict COMAND in-
structions.
WarningG
The Navigation DVD module contains a
Class 1 laser product. There is a danger of
invisible laser radiation if the cover is
opened or damaged.
Do not remove the cover. The Navigation
DVD module does not contain any parts ser-
viceable by the user. For safety reasons,
have any necessary service work performed
by qualified personnel.
The display unit can cause injury if contac-
ted when open. Return the display unit after
inserting a Navigation DVD to its closed po-
sition (
page 204).

151 Navigation*
Destination input
Press the State soft key
in the Enter street menu
(
page 150)
in the Enter city menu (page 157).
The Select state/province menu will
appear.
Select state/province menu
Push the joystick to g or G to
select a state.
Press E.
The Enter street menu will reappear
and shows the new state code in the
middle of the screen.
Toggling between State and Province
list
You can toggle between states in the USA
and provinces in Canada.
Push the joystick to H or h.
State of Hawaii
When on the mainland, you cannot choose
destinations in Hawaii, because these are
in a database separate from the USA/
Canada. Similarly, when in Hawaii, you cannot choose mainland destinations. The
message
You must change the state
or province in order to use that
destination
will appear in this case, if
such a destination is selected from the last
destinations memory (
page 191), the
destination memory (
page 193) or as
home address (
page 163).
Choose another state or province.
The warning message
This selec-
tion will restart the system.
Last destinations may not be
available, and today’s plan
will be erased. Do you wish to
continue?
will appear.
Push the joystick to H to select Yes.
Press E to restart.
Selecting the state/province
i
Use the State list for selecting states in
the USA and the Province list for
selecting provinces in Canada.
i
If you have already calculated a route,
you can toggle to the Last list, which
contains up to 5 last selected states or
provinces.
i
After such a restart, Today’s Plan
entries are all deleted. Destinations in
the previous area (for example in Last
Destinations) are kept so that you can
access and delete them.

168 Navigation*
Route guidance
After route calculation, the system assists
route guidance using pictorial displays
(
page 169) and voice instructions. Repeating current voice instructions
If you have not understood a navigation
announcement, you can at any time have a
current announcement repeated.
Press j.
The current navigation announcement
is repeated.
Switching voice instructions On/Off
Switching off
Press J during a navigation
announcement.
The message
Voice announcements
muted
will appear briefly. Further route guidance takes place
using only the symbols in the display.
If a new route guidance cycle is started,
the announcements are automatically
switched on again.
Switching on again
Press j.
Voice instructions
WarningG
Voice instructions are intended to direct you
while driving without diverting your atten-
tion from the road and driving.
Always use this feature instead of consulting
the map display for directions. Consulting
the map displays for directions may cause
you to divert your attention from driving and
increase the risk of an accident.

172 Navigation*
Route guidance
Usually COMAND guides you through fully
digitized areas on verified roads for as long
as possible. Route guidance is conducted
in the usual manner, i.e. with navigation
announcements and route guidance dis-
plays, map or split screen.
The DVD map may contain areas that are
only partially digitized with unverified
roads although they are within a digitized
region.Verified roads
include information about the road’s
average speed, turning restrictions, or
whether it is a one-way street
are typically roads within a
metropolitan area, interstate freeways
or major roads connecting cities
enable reasonably accurate route
calculation and selection
Unverified roads
are roads which lack the expected
road’s average speed and other
attributes
could be smaller city streets and roads
either named incorrectly, have no
name or the name is shown in the
wrong location
may not enable reasonably accurate
route calculation and selection
Partially digitized areas/unverified
roadsWarningG
Due to incomplete digitization, the route
shown on the map may differ from the actual
road/traffic situation.
If you follow the route shown on the map, for
example, it is possible that you could drive
the wrong way down a one-way street, that
a street cannot be driven on or that the road
is of questionable quality.
When using route guidance on a unverified
road in a partially digitized area, you must
therefore be sure to observe all relevant
traffic regulations and the course of the
road.
Drive carefully and keep in mind that all rel-
evant traffic regulations and the course of
the road always take priority over the route
shown on the map.

173 Navigation*
Route guidance
Route guidance in these areas
When you are
entering a partially digitized area
or
starting route guidance within such an
area,
the navigation system will inform you that
turn by turn guidance cannot be provided
with corresponding navigation displays
and voice announcements.Map display
Within these areas the display shows a
split screen with the map on the left-hand
side and a direction arrow on the right side
pointing to the destination instead of the
symbol for the next driving maneuver
(page 174).
Route presentation
Usually the map highlights the active route
on verified roads with a blue line.
After route calculation, the route may
contain unverified road sections. Here, the
exact route guidance is suppressed and
these route sections will appear as blue
dotted lines. This type of line e.g. connects
two verified road sections, which are
displayed as blue lines or connects the end
of a verified road with a stopover or
destination located on an unverified road.
i
Displayed or audible distance to the
beginning of such an area is an
estimation. The actual distance may
differ.
WarningG
If the origin and destination are located very
close to each other, the system may not pro-
vide the shortest path to the destination
when you are travelling in an unverified area.
In most cases you will be directed to a veri-
fied road closest to the destination. This
may appear to be a long and inconvenient
route but it is safer. At your own risk, you
may choose to drive on the unverified roads
to the destination.