2013 MERCEDES-BENZ SL-CLASS ROADSTER warning

Problem Possible causes/consequences and
M Solutions?
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 no longer being cooled
sufficiently.
X
Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 498).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the coolant temperature is
under 248

‡ (120 †). Otherwise, the engine could be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. ?
The red coolant
warning
lamp

comes on
while the engine is
running. A warning tone
also sounds. The coolant temperature has exceeded 248 ‡ (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.
Do not
drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).264
Warning and indicator lamps
On-board computer and displays

Problem Possible causes/consequences and
M SolutionsX
Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 498).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures under 248 ‡ (120 †), drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. Driving systems
Problem Possible causes/consequences and
M Solutions·
The red distance
warning lamp lights up
while the vehicle is in
motion.
A

warning tone
also sounds. You are approaching a vehicle 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 DISTRONIC PLUS ( Y page 166).
Further information on PRE-SAFE ®
Brake (Y page 63). Warning and indicator lamps
265
On-board computer and displays Z

Tires
Problem Possible causes/consequences and
M Solutions
h
USA only:
The
yellow

tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.
Canada only:
The yellow tire pressure
monitor warning lamp
(pressure loss) is lit. The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
G WARNING
With tire pressures which are too low, there is a risk of the
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may

wear excessively and/or unevenly, which may greatly
impair tire 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
maneuvers. Pay

attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away ( Y page 154).
X Observe the additional display messages in the multifunction
display.
X If there is a flat tire, inspect the tires ( Y page 509).
X Check the tire pressure (Y page 534).
X If necessary, correct the tire pressure. h
USA only:
The
yellow

tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit. The tire pressure monitor is faulty.
G WARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Visit a qualified specialist workshop.266
Warning and indicator lamps
On-board computer and displays

Useful information
i These operating instructions describe all
the standard and optional equipment of
your COMAND system, as available at the
time of going to print. Country-specific
differences are possible. Please note that
your COMAND system may not be
equipped with all the features described.
This also applies to safety-related systems
and functions.
i Read the information on qualified
specialist workshops: ( Y page 31).
Operating safety
Important safety notes
G
WARNING
Making alterations to electronic components
can cause malfunctions.
Radio, satellite

radio, amplifier, DVD changer,
navigation module, phone and voice control
are networked. If one component is not
functional or if it has been incorrectly
removed/replaced, this could impair the
operation of other components.
This could seriously jeopardize the
operational safety of your vehicle.
We recommend that you always have
maintenance work on electronic components
carried out at an authorized Mercedes-Benz
Center. G
WARNING
In
order to avoid distraction which could lead
to an accident, the driver should only enter
system settings

with the vehicle at a standstill
and operate the system only when road,
weather and traffic conditions permit.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers
a distance of 44 feet (approximately 14 m) per
second. COMAND delivers information to simplify
your choice of route and guide you
comfortably and safely to your destination.
For safety reasons, we recommend that you
bring your vehicle to a standstill, paying
attention to road and traffic conditions,
before making or accepting a telephone call
or viewing navigation maps, instructions or
downloaded information on the COMAND
screen.
G
WARNING
While the navigation system provides
directional assistance,

the driver must remain
focused on safe driving behavior, especially
attention to traffic and street signs, and
should utilize the system's audio cues while
driving.
The navigation system does not supply any
information on stop signs, yield signs, traffic
regulations or traffic safety rules. Their
observance always remains in the driver's
personal responsibility. DVD maps do not
cover all areas nor all routes within an area. G
WARNING
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled
equipment and meets the FCC radio
frequency (RF) Exposure Guidelines in
Supplement C to OET65.
This equipment has very low levels of RF
energy that is deemed to comply without
maximum permissive exposure evaluation
(MPE). But it is desirable that it should be
installed and operated with at least 8
inches
(20 cm)

and more between the radiator and a
person's body (excluding extremities: hands,
wrists, feet and legs.) 268
Operating safety
COMAND

X
Slide ZV the COMAND controller and
switch to main function bar :.
X Select System in the main function bar by
turning cVd the COMAND controller and
press W to confirm.
The system menu appears. Selecting the menu of a main function
Example display for audio CD mode and audio
menu (below)
:
To call up the audio menu
If one of the navigation, audio, telephone or
video main functions is switched on, triangle : appears next to the entry in the
main function bar. You can now select an
associated menu.
The example describes how to call up the
audio menu from audio CD mode (an audio
CD is playing).
X
Select Audio in the main function bar by
sliding ZV the COMAND controller and
press W to confirm.
The Audio menu appears.
The # dot
indicates the currently selected
audio mode.
X Select another audio mode, e.g. Radio, by
turning cVd the COMAND controller and
press W to confirm.
Radio mode is activated.
Selects a menu item X
Select the station by turning cVd the
COMAND controller and press W to
confirm.
The station is set. Basic COMAND functions
Switching COMAND on/off X
Press the q control knob.
A warning message appears. COMAND
calls up the previously selected menu.
i If you switch off COMAND, playback of
the current audio or video source will also
be switched off. At a glance
275
COMAND Z

Climate control status display
The climate status display in the COMAND display
(example)
If you change the settings of the climate
control system, the climate status display
appears for three seconds at the bottom of
the screen in the COMAND display. You will
see
the
current settings of the various climate
control functions.
Overview of climate control systems
(Y page 122).
The climate status display appears when:
X You turn one of the two temperature
controls and

set the temperature to the left
or right.
or
X You press one of the following buttons:
K Increases air flow
I Decreases air flow
¿ Switches climate control on/off
á Switches the ZONE function on/off
à Controls the air conditioning
automatically
ñ Sets the climate control style in
automatic mode (FOCUS/MEDIUM/
DIFFUSE)
_ Sets the air distribution
¬ Turns on the defrost function
Ù Turns on maximum cooling Example settings for the defrost function (top) and
for the climate mode in automatic mode
X
To hide the display: turn or press the
COMAND controller.
or
X Press one of the buttons on COMAND.
Displaying the image from the rear view
camera G
WARNING
The rear view camera is only an aid and may
show a distorted view of obstacles, show
them incorrectly or not at all.
Further information on the rear view camera
(Y page 190).
The image from the rear view camera is
shown in the COMAND display when reverse
gear is engaged if:
R your vehicle is equipped with a rear view
camera.
R COMAND is switched on
R the Activation by R gear function is
activated.
If the function is activated, the COMAND
display will automatically switch back to the
previously selected display as soon as you
shift out of reverse gear.
i Further information on the rear view
camera ( Y page 190).
X Press the W function button.
The system menu appears.
X Select Settings by turning cVd the
COMAND controller and press W to
confirm. 276
At a glance
COMAND

If you select
Yes, a prompt will appear again
asking whether you really wish to reset.
X Select Yes or No and press W to confirm.
If you

select Yes, a message will be shown.
COMAND is reset and restarted.
If you select No, the process will be
canceled.
i Resetting personal COMAND data does
not reset the Internet and online settings
(Y page 401). Likewise, resetting the
Internet and

online settings does not reset
personal COMAND data. Navigation
Introduction
Safety notes G
WARNING
For safety reasons, only enter a new
destination when the vehicle is stationary.
When you are driving, another passenger
should enter the destination. Read the
Operator's Manual and select the route
before driving.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h

), the vehicle covers
a distance of 44 feet (approximately 14 m) per
second.
COMAND calculates the route to the
destination without taking account of the
following, for example:
R traffic lights
R stop and give way signs
R merging lanes
R parking or stopping in a no parking/no
stopping zone
R other road and traffic rules and regulations
R narrow bridges G
WARNING
COMAND may give incorrect navigation
commands if

the actual road/traffic situation
no longer corresponds to the data on the digital map. Digital maps do not cover all
areas nor all routes in an area. For example,
a route may have been diverted or the
direction of a one-way street may have
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 the system's driving
recommendations. G
WARNING
Navigation announcements are intended to
direct you

while driving without diverting your
attention from the road and driving.
Please always use this feature instead of
consulting the map display for directions.
Looking at the icons or map display can
distract you from traffic conditions and
driving, and increase the risk of an accident.
General notes Operational readiness of the navigation
system
The navigation system must determine the
position of the vehicle before first use or
whenever operational status is restored.
Therefore, you may have to drive for a while
before precise route guidance is possible.
GPS reception
Correct functioning of the navigation system
depends, amongst other things, on GPS
reception. 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 parking garages.
Entry restriction
On vehicles for certain countries, there is a
restriction on entering data.
The
restriction

is active from a vehicle speed
of above approximately 3 mph (5 km/h). As
soon as the speed falls below approximately Navigation
295
COMAND Z

Carpool lanes may only be used under certain
conditions.
Normally
you can use these lanes
when two or more occupants are traveling in
the vehicle. However, there are lanes that can
only be used when three or four occupants
(e.g. in New York) travel in the vehicle. In
California, lone drivers can use a carpool lane
if their vehicle's emission level or fuel
consumption is below a fixed threshold.
Carpool lanes may be reserved for specific
times (e.g. during the peak period).
Carpool lanes are identified by HOV symbols
on special road signs and by markings on the
road. The road signs may also include the
designation CARPOOL. The lanes are arranged
as a separate lane next to the others or are
built as a physically separate lane.
Depending on the setting under Number of
Occupants in Vehicle, COMAND uses
carpool lanes when calculating the route.
COMAND then guides you in and out of
carpool lanes using visual and acoustic
driving directions. X
In the route settings menu, select Number
of Occupants in Vehicle by turning
cVd the COMAND controller. X
Select 1, 2 or More than 2 by turning
cVd and press W to confirm.
A # dot indicates the current setting. Destination input
Important safety notes G
WARNING
For safety reasons, only enter a new
destination when the vehicle is stationary.
You could otherwise be distracted from the
traffic conditions, cause an accident and
injure yourself and others.
Entering a destination by address Introduction
When
entering

an address as the destination,
you have the following options:
R entering the state/province, city/ZIP code
and street
R entering the state/province, city and
center
R entering the state/province, city/ZIP code,
street and house number
R entering the state/province, city/ZIP code,
street and intersection
R entering the state/province, street, city
and house number
R entering the state/province, street and
house number
R entering the state/province, street and
intersection298
Navigation
COMAND