Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ?
N
The red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the scale.
The temperature sensor for the coolant temperature gauge is malfunctioning.
The coolant temperature is no longer being monitored. The engine could be dam-
aged if the coolant temperature is too high.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine. Do not continue driving.
X Safeguard the vehicle against rolling away (Y page 168).
X Consult a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
299On-board computer and displays Z
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
M Solutions ?
N
The red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked or the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is not being cooled sufficiently.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 168).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 335).
X If you have to top up the coolant frequently, have the engine cooling system
checked.
X Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X Do not start the engine again until the coolant temperature is below 120 †. The
engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. ?
N
The red coolant warning lamp comes on while the engine is running.
The coolant temperature has exceeded 120 †. The airflow to the engine radiator may be blocked or the coolant level may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Never drive with an overheated engine. Driving when your engine is overheated
can cause any fluids that may have leaked into the engine compartment to catch fire.
In addition, steam from an overheated engine can cause serious burns, which can
occur just by opening the bonnet.
There is a risk of injury.
X Observe the additional display messages in the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 168).
X Leave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, observing the warning notes
(Y page 335).
X If you have to top up the coolant frequently, have the engine cooling system
checked. 300
Warning and indicator lamps in the instrument clusterOn-board computer and displays
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions X
Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X If the coolant temperature is below 120 †, you can continue driving to the
nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. Driving systems
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ·
N
The red distance warning lamp lights up while the vehicle is in motion.
The distance to the vehicle in front is too small for the speed selected.
X Increase the distance. ·
N
The red distance warning lamp lights up while the vehicle is in motion. A warning
tone also sounds.
You are approaching a vehicle, a pedestrian or a stationary obstacle in your line of travel at too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to brake or take
evasive action.
Further information on Distance Pilot DISTRONIC (Y page 184).
Further information on the distance warning function of Active Brake Assist
(Y page 70). Warning and indicator lamps in the instrument cluster
301On-board computer and displays Z
Tyres
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions h
N
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction) is
lit.
The tyre pressure monitor has detected a loss of pressure in at least one of the
tyres.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed increase
R the tyres may wear excessively and/or unevenly, which may greatly impair tyre
traction
R the driving characteristics, as well as steering and braking, may be greatly
impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking manoeuvres.
Pay attention to the traffic conditions as you do so.
X Safeguard the vehicle against rolling away (Y page 168).
X Observe the additional display messages in the multifunction display.
X Check the tyres and, if necessary, follow the instructions for a flat tyre
(Y page 346).
X Check the tyre pressure (Y page 367).
X If necessary, correct the tyre pressure. h
N
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tyre pressure monitor is faulty.
G WARNING
The system is possibly unable to detect or register low tyre pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction display.
X Consult a qualified specialist workshop immediately. 302
Warning and indicator lamps in the instrument clusterOn-board computer and displays
General notes
The section on the multimedia system in this
manual describes the basic principles for oper-
ation. More information can be found in the Dig-
ital Owner's Manual. Important safety notes
G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the
surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
You must observe the legal requirements for the country in which you are currently driving whenoperating the multimedia system.
The multimedia system calculates the route to
the destination without taking the following into
account, for example:
R traffic lights
R stop and give way signs
R parking or stopping restrictions
R road narrowing
R other road and traffic rules and regulations
The multimedia system may give incorrect driv-
ing recommendations if the actual road/traffic
situation does not correspond with the digital
map data.
For example:
R a diverted route
R the road layout or the direction of a one-way
street has been changed
For this reason, you must always observe road
and traffic rules and regulations during your
journey. Road and traffic rules and regulations
always have priority over multimedia system
driving recommendations. Function restrictions
For safety reasons, some functions are restric-
ted or unavailable while the vehicle is in motion.
You will notice this, for example, because either
you will not be able to select certain menu items or a message will appear to this effect. Operating system
Overview
General notes !
Do not use the space in front of the display
for storage. Objects placed here could dam-
age the display or impair its function. Avoid
any direct contact with the display surface.
Pressure on the display surface may result in
impairments to the display, which could be
irreversible.
Wearing polarised sunglasses may impair your
ability to read the display.
The display has an automatic temperature-con- trolled switch-off feature. The brightness is
automatically reduced if the temperature is too
high. If necessary, the display may temporarily
switch off completely.
Cleaning instructions !
Do not touch the display. The display has a
very sensitive high-gloss surface; there is a
risk of scratching. If you have to clean the
screen, however, use a mild cleaning agent
and a soft, lint-free cloth.
The display must be switched off and have
cooled down before you start cleaning. Do not
apply pressure to the display surface when
cleaning it, as this could cause irreversible dam- age to the display.
Switching the multimedia system
on/off X
Press the qcontrol knob. Operating system
303Multimedia system Z
Adjusting the volume
X
Turn the qcontrol knob.
The volume changes:
R for the currently set media source
R during a traffic announcement or navigation
message
R in hands-free mode during an active call
Switching the sound on/off X
Press the 8button on the control panel.
If the audio output is switched off, the status
line will show the 8symbol. If you switch
the media source or change the volume, the
sound is automatically switched on.
i You will hear navigation messages even
when the sound is muted.
Functions The multimedia system has the following func-
tions:
R Radio mode
R Media mode with media search
R Sound systems
R Navigation system
COMAND Online: navigation using hard drive
Audio 20: navigation using SD memory card
R Communication functions
R Vehicle functions with system settings
R Favourites functions
Controller The controller in the centre console lets you:
R select menu items on the display
R enter characters
R select a destination on the map
R save entries
The controller can be:
R turned 3
R slid left or right 1
R slid forwards or back 4
R slid diagonally 2
R pressed briefly or pressed and held 7Back button You can use the
%button to exit a menu or to
call up the basic display of the current operating mode.
X To exit the menu: briefly press the%
button.
The multimedia system changes to the next
higher menu level in the current operating
mode.
X To call up the basic display: press the%
button for longer than two seconds.
The multimedia system changes to the basic
display of the current operating mode. Favourites
Calling up and exiting favourites X
To call up: press thegbutton on the con-
troller.
X Select a favourite, e. g. Vehicle Vehicle.
The favourites are displayed.
X To exit: press the gbutton again.
Adding favourites Adding a predefined favourite
:
To add a new favourite
; To rename a selected favourite
= To move a selected favourite
? To delete a selected favourite
X Press the gbutton.
X Slide 6the controller.
The menu bar is shown.
X Select Reassign
Reassign.
The categories are displayed.
X Select a category.
The favourites are displayed. 304
Operating systemMultimedia system
X
Select a favourite.
X Add a favourite at the desired position.
If a favourite has already been added at this
position, it will be overwritten.
Adding your own favourite
X Select Vehicle VehicleQ Climate control Climate control.
X Press and hold the gbutton until the
favourites are displayed.
X Add a favourite at the desired position.
If a favourite has already been added at this
position, it will be overwritten. Navigation mode
Important safety notes G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the
surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
You must observe the legal requirements for the country in which you are currently driving whenoperating the navigation system.
General notes Correct functioning of the navigation system
depends, amongst other things, on GPS recep-
tion. In certain situations, GPS reception may be
impaired, there may be interference or there
may be no reception at all, e.g. in tunnels or
multi-storey car parks.
Audio 20 is equipped with Garmin ®
MAP PILOT;
see the manufacturer's operating instructions.
The Garmin ®
MAP PILOT operating instructions
are stored on the SD card as a PDF file. The SD card box contains a quick guide.
The following descriptions apply to navigation
with COMAND Online. Further information can
be found in the Digital Owner's Manual. Selecting a route type and route options Multimedia system:
X Select Navi
Navi QNavigationNavigation.
The map displays the current vehicle position.
X Slide 6the controller.
X Select Options OptionsQ Route settings
Route settings .
Notes for route types:
R Eco route
Eco route
R Dynamic route
Dynamic route
Traffic reports on the route are taken into
account for the route guidance (not available
in all countries).
R Dynamic route only after request Dynamic route only after request
You can decide whether or not current traffic
reports should be taken into account for route
calculation (not available in all countries).
R Calculate alternative routes Calculate alternative routes
Different routes are being calculated. In order
to do so, instead of Start Start, select the menu
item Continue
Continue .
X To avoid/use route options: selectAvoid
Avoid
options
options.
X Select a route option.
Notes for route options:
R Use toll roads
Use toll roads
The route calculation includes roads which
require you to pay a usage fee (toll).
R Use vignette roads Use vignette roads (not available in all
countries)
The route calculation includes roads which
require you to pay a time-based fee (vignette).
A vignette allows temporary use of the route
network, e. g. 10 days or 1 year.
Entering an address Multimedia system:
X Select Navi NaviQNavigationNavigation.
The map displays the current vehicle position.
X Slide 6the controller.
X Select Destination DestinationQ Address entry Address entry.
Enter an address, e.g. as follows:
R town or postcode, street, house number
R country, town or postcode
R town or postcode, centre
R street, town or postcode, junction Operating system
305Multimedia system Z
X
Select Town
Town .
The town in which the vehicle is currently
located (current vehicle position) is at the top.
Below this, you will see locations for which
route guidance has already been carried out.
X Enter the town.
The Gsymbol: the location is contained on
the digital map multiple times.
X To switch to the list: slide5the control-
ler.
X Select the location.
If available, the postcode is shown. If there
are different postcodes available for the loca-
tion, the corresponding digits are displayed
with an X
X.
X Enter the street and house number.
The address is in the menu.
Further options for destination entry:
R search for a keyword
The keyword search finds destinations using
fragments of words.
R select the last destination
R select a contact
R select a POI
You can search for a POI by location, name or
telephone number.
R select destination on the map
R enter intermediate destination
You can map the route to the destination
yourself with up to four intermediate destina-
tions.
R select travel guide destination (only available
for selected European countries)
R select destinations from Mercedes-Benz
Apps
R select geo-coordinates
Calculating the route Prerequisite: the address has been entered and
is in the menu.
X Select Start StartorContinue
Continue .
The route is calculated with the selected route
type and the selected route options. If route guidance has already been activated,
a prompt will appear asking whether you wish to end the current route guidance.
X Select Cancel
Cancel current
current route
routeguidance
guidance or
Set as intermediate destination
Set as intermediate destination.
Cancel current route guidance Cancel current route guidance cancels
the current route guidance and starts route
calculation to the new destination.
Set as intermediate destination
Set as intermediate destination adds
the new destination in addition to the existing destination and opens the intermediate des-
tinations list. Connecting the mobile phone
Requirements For telephony via the Bluetooth
®
interface, you
require a Bluetooth ®
-capable mobile phone. The
mobile phone must support Hands-Free Profile
1.0 or above.
Multimedia system:
X Select Vehicle VehicleQ System set‐
System set‐
tings
tingsQActivate Bluetooth Activate Bluetooth.
X Activate Bluetooth ®
O.
Mobile phone:
X Activate Bluetooth ®
and, if necessary, Blue-
tooth ®
visibility for other devices (see the
manufacturer's operating instructions).
The Bluetooth ®
device names for all of one man-
ufacturer's products might be identical. To
make it possible to clearly identify your mobile
phone, change the device name (see the man-
ufacturer's operating instructions).
If the mobile phone supports the PBAP (Phone
Book Access Profile) and MAP (Message
Access Profile) Bluetooth ®
profiles, the follow-
ing information will be transmitted after you
connect:
R Phone book
R Call lists
R Text messages and e-mails
i Further information on suitable mobile
phones can be found at: http://
www.mercedes-benz.com/connect 306
Operating systemMultimedia system