2013 MERCEDES-BENZ SL-CLASS ROADSTER warning light

Safety
Seat belts Problem Possible causes/consequences and
M Solutions
ü
The red seat belt
warning lamp lights up
after the engine starts,
as soon as the driver's
or the front-passenger
door is closed.
The driver or front passenger has not fastened their seat belt.
X
Fasten your seat belt ( Y page 51).
The warning lamp goes out. There are objects on the front-passenger seat.
X
Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out. ü
The red seat belt
warning lamp flashes
and an intermittent
audible warning
sounds.
The driver or front passenger has not fastened their seat belt. You
are driving faster than 15 mph (25 km/h ) or have briefly driven
faster than 15 mph (25 km/h

).
X Fasten your seat belt ( Y page 51).
The warning lamp goes out and the intermittent warning tone
ceases. There are objects on the front-passenger seat. You are driving
faster than 15 mph (25 km/h
) or have briefly driven faster than
15 mph (25 km/h

).
X Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning tone
ceases.256
Warning and indicator lamps
On-board computer and displays

Problem Possible causes/consequences and
M Solutions!
The
yellow
ABS warning
lamp is lit while the
engine is running. ABS is temporarily unavailable. BAS, BAS PLUS, ESP
®
, EBD
(electronic brake force distribution), PRE-SAFE ®
,
PRE-SAFE ®
Brake,
the HOLD function, hill start assist are therefore
also deactivated, for example.
Possible causes are:
R Self-diagnosis is not yet complete.
R The on-board voltage may be insufficient.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is

not operational, ESP ®
is unable to stabilize the vehicle.
There is a risk of an accident.
X Carefully drive a suitable distance making slight steering
movements at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.258
Warning and indicator lamps
On-board computer and displays

Problem Possible causes/consequences and
M Solutions֌
The yellow ESP
®
and
ESP ®
OFF warning
lamps are lit while the
engine is running. ESP
®
, BAS, BAS PLUS, PRE-SAFE ®
, PRE-SAFE ®
Brake, the HOLD
function and
hill start assist are not available due to a malfunction.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is

not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop. ֌
The yellow ESP
®
and
ESP ®
OFF warning
lamps are lit while the
engine is running. ESP
®
, BAS, PRE-SAFE ®
,
the HOLD function and hill start assist are
temporarily unavailable.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
ATTENTION ASSIST is deactivated.
Self-diagnosis is not yet complete.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is

not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance making slight steering
movements at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop. Warning and indicator lamps
261
On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions$ (USA only)
! (Canada only)
The red indicator lamp
for the electric parking
brake flashes and/or
the yellow
!
The warning lamp for
the electric parking
brake lights up. The electric parking brake is temporarily malfunctioning or
defective.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 154).
X Observe the additional display messages in the multifunction
display. 6
The red SRS warning
lamp is lit while the
engine is running.
There is a malfunction in the SRS (Supplemental Restraint
System).
G WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Drive on carefully.
X Have SRS checked at a qualified specialist workshop
immediately.
Further information on occupant safety (Y page 37). 262
Warning and indicator lampsOn-board computer and displays

Engine
Problem Possible causes/consequences and
M Solutions
;
The yellow Check
Engine warning lamp
lights up while the
engine is running.
There may be a malfunction, for example:
R
in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system
R in the fuel system
The emission limit values may be exceeded and the engine may
be running in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop.
i In some states, you must immediately visit a qualified
specialist workshop

as soon as the yellow Check Engine warning
lamp lights up. This is due to the legal requirements in effect in
these states. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving. 8
The yellow reserve fuel
warning lamp lights up
while the engine is
running.
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. 8
The yellow reserve fuel
warning lamp flashes
while the vehicle is in
motion.
In addition, the

;
Engine Check warning
lamp may light up. The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed:
close
the fuel filler
cap.
X If the fuel filler cap is closed: visit a qualified specialist
workshop. ?
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
defective.
The
coolant
temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention

to road and traffic conditions. Do not continue
driving under any circumstances.
X Secure the vehicle against rolling away ( Y page 154).
X Consult a qualified specialist workshop. Warning and indicator lamps
263
On-board computer and displays Z

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

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

X
Call up the "Personal POIs" menu
(Y page 316).
X Select Display Personal POIs On Map
in the menu and press W to confirm.
You can select different categories. Selection Explanation
ªNot
Classified Standard entry for
personal POIs
ªCOMAND Personal POIs
(destinations,
routes)
that
you have imported via the
online function
(Y page 392). If you have created your own categories (e.g.
"Fishing", "Hotels"), they are also displayed
(Y page 317).
X
Select a category and press W to confirm.
The icon display is switched on O or off
ª, depending on the previous status.
i The icons will be displayed in the following
map scales:
R 1/16 mile (50 m)
R 1/8 mile (100 m)
R 1/4 mile (200 m)
R 1/2 mile (500 m)
Visual warning for personal POIs Example: visual warning for a personal POI
If the vehicle is approaching a personal POI,
this
is

highlighted on the map. The display for the corresponding category must be
activated for this.
X
Call up the "Personal POIs" menu
(Y page 316).
X In the "Personal POIs" menu, select
Visual Warning For Personal POIs
and press W to confirm.
The menu

displays the available categories.
X Select a category and press W to confirm.
This will switch the visual warning for all
personal POIs

of this category on O or off
ª, depending on the previous setting.
Acoustic notification for personal POIs
A gong sounds when the vehicle is
approaching a

personal POI. The function for
the corresponding category must be
activated for this.
X Call up the "Personal POIs" menu
(Y page 316).
X In the "Personal POIs" menu, select
Acoustic Notification For
Personal POIs and press W to confirm.
The menu

displays the available categories.
X Select a category and press W to confirm.
This will

switch the acoustic notification for
all personal POIs of this category on O or
off ª, depending on the previous setting.
Creating categories for personal POIs Navigation
317
COMAND Z