warning light MERCEDES-BENZ CLA-CLASS 2013 Repair Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2013, Model line: CLA-CLASS, Model: MERCEDES-BENZ CLA-CLASS 2013Pages: 352, PDF Size: 5.64 MB
Page 201 of 352
Indicator and warning display
Blind Spot Assist is not active at speeds below
approximately 30 km/h. Vehicles in the mon-
itoring range are then not indicated.:Yellow indicator lamp/red warning lamp
If Blind Spot Assist is activated, indicator
lamp : in the exterior mirrors lights up yel-
low up to a speed of 30 km/h. At speeds
above 30 km/h, the indicator lamp goes out
and Blind Spot Assist is operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
30 km/h, warning lamp : on the corre-
sponding side lights up in red. This warning
always occurs when a vehicle enters the blind
spot monitoring range from behind or from
the side. When you overtake a vehicle, the
warning only occurs if the difference in speed
is less than 12 km/h.
The yellow indicator lamp goes out if reverse
gear is engaged. Blind Spot Assist is then
deactivated.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light.
Collision warning
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp : flashes. If
the turn signal remains on, detected vehicles
are indicated by the flashing of red warning
lamp :. There are no further warning tones.
Activating Blind Spot AssistXMake sure that Blind Spot Assist is activa-
ted in the on-board computer
( Y page 219).XTurn the key to position 2 in the ignition
lock.
Warning lamps : in the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Blind Spot Assist is then
deactivated. The indicator lamp lights up yel-
low in the exterior mirrors and the Blind
Spot Assist currently unavailable
See Owner's Manual message appears in
the multifunction display.
i You can deactivate the indicator lamps in
the exterior mirrors.
To do so, deactivate Blind Spot Assist if:
R the key is in position 2 in the ignition lock
R the engine is not running
R the electrical connection to the trailer
has been established
Lane Keeping Assist
General notes
Lane Keeping Assist monitors the area in
front of your vehicle by means of a camera at
the top of the windscreen. Lane Keeping
Assist detects lane markings on the road and
warns you before you leave your lane unin-
tentionally.
Driving systems199Driving and parkingZProCarManuals.com
Page 206 of 352
Before you can tow a trailer with your vehicle,
you must fold out the ball coupling.
The release wheel is located behind the left-
hand side trim panel in the boot.XTo open the cover: turn handle : anti-
clockwise and fold down cover ; and
remove it.XPull out release wheel =.XTurn release wheel = anti-clockwise as far
as it will go.
The ball coupling disengages and folds out
behind the rear bumper. Indicator
lamp ? flashes.GWARNING
If the ball coupling is not correctly engaged,
the trailer can detach. There is a risk of an
accident.
Always engage the ball coupling as described.
XPull the ball coupling in the direction of the
arrow until it engages in a vertical position.
Indicator lamp ? goes out. The power
socket folds down automatically.
The multifunction display shows the
Check trailer hitch lock display mes-
sage until the ball coupling is engaged.XRemove the protective covering from the
ball coupling and store it in a safe place.XMake sure that the ball of the ball coupling
is clean and that it is either greased or dry
(grease free), depending on the instruc-
tions for the trailer.
Coupling up a trailer
XMake sure that the transmission is in posi-
tion P.XApply the electric parking brake.XPosition the trailer level behind the vehicle.XCouple up the trailer.XEstablish the electric connection between
the vehicle and the trailer.XCheck that the trailer lighting system is
working.
A trailer that is connected is recognised
only when the electrical connection is
established correctly and when the lighting
system is working properly. The function of
other systems, such as ESP ®
or PARK-
TRONIC also depends on this.
Uncoupling a trailer
GWARNING
If you uncouple a trailer with an engaged over-
run brake, you could trap your hand between
204Towing a trailerDriving and parking
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Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: ( Y page 24).
Important safety notes
GWARNING
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.
GWARNING
If the instrument cluster has failed or mal-
functioned, you may not recognise function
restrictions relevant to safety. The operating
safety of your vehicle may be impaired. There
is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer only shows messages
or warnings from certain systems in the mul-
tifunction display. You should therefore make
sure your vehicle is operating safely at all
times. Otherwise, a vehicle that is not oper-
ating safely may cause an accident.
For an overview, see the instrument panel
illustration ( Y page 30).
Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
The brightness control knob is on the bottom
left of the instrument cluster ( Y page 30).
XTurn the brightness control knob clockwise
or anti-clockwise.
If the light switch is set to Ã, T or
L , the brightness is dependant upon
the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Coolant temperature gauge
GWARNING
If you open the bonnet while the engine is
overheating or while there is a fire in the
engine compartment, you could come into
contact with hot gases or other leaking
service products. There is a danger of injury.
Allow an overheating engine to cool down
before opening the bonnet. If there is a fire in
the engine compartment, leave the bonnet
closed and notify the fire brigade.
The coolant temperature gauge is in the
instrument cluster on the right-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 120 †.
208Displays and operationOn-board computer and displays
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Activating/deactivating the Speed Limit
Assist message functionXPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress the 9 or : button to select
Speed Lim. Assist .XPress the a button.
The multifunction display shows Speed
Limit Assist.XPress the : button.
The current selection is displayed.XTo activate or deactivate: press a.
If the Speed Limit Assist message function
is activated, a detected speed limit is auto-
matically displayed for five seconds. Other
items in the multifunction display are not
shown during this time.
When Speed Limit Assist is operational and
the message function is activated, the assis-
tance graphic shows the Ä symbol.
Deactivating/activating ESP ®
For further information about ESP
®
, see
( Y page 68).
XStart the engine.XPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress the 9 or : button to select
ESP .XPress the a button.XTo deactivate: press a again.
The å warning lamp in the instrument
cluster lights up.XTo activate: press a again.
The å warning lamp in the instrument
cluster goes out.Activating/deactivating the distance
warning functionXPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress 9 or : to select Distance
warning .XPress the a button.
The current selection is displayed.XTo activate/deactivate: press the a
button again.
When the distance warning function is
deactivated, the æ symbol appears in
the multifunction display in the assistance
graphics display.
Further information on the distance warning
function ( Y page 65).
Activating/deactivating COLLISION
PREVENTION ASSIST PLUS
XPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress the 9 or : button to select
Collision Prevent. Assist .XPress the a button.
The current selection is displayed.XTo activate/deactivate: press the a
button again.
When COLLISION PREVENTION ASSIST
PLUS is deactivated, the æ symbol
appears in the multifunction display in the
assistance graphics display.
For further information about COLLISION
PREVENTION ASSIST PLUS, see (Y page 67).
Activating/deactivating ATTENTION
ASSIST
XPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress 9 or : to select Attention
Assist .218Menus and submenusOn-board computer and displays
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Page 221 of 352
XPress the a button.
The current selection is displayed.XTo activate/deactivate: press the a
button again.
When ATTENTION ASSIST ( Y page 195) is
deactivated, the é symbol appears in
the multifunction display in the assistance
graphics display.
Activating/deactivating Blind Spot
Assist
XPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress 9 or : to select Blind Spot
Asst. .XPress the a button.
The current selection is displayed.XTo activate/deactivate: press the a
button again.
For further information about Blind Spot
Assist, see ( Y page 197).
When the Blind Spot Assist: Sensors
deactivated message is shown, the radar
sensors are deactivated.
XSwitch on the radar sensor system
( Y page 223).
Activating/deactivating Lane Keeping
Assist
XPress the = or ; button on the steer-
ing wheel to select the Assist menu.XPress 9 or : on the steering wheel
to select Lane Keeping Assist .XPress the a button.
The current selection is displayed.XPress a to confirm.XPress the : or 9 button to set Off,
Standard or Adaptive .XPress the a button to save the setting.
When Lane Keeping Assist ( Y page 199) is
activated, the multifunction display in theassistance graphic shows the lane mark-
ings in green.
Service menu
In the Serv menu, you have the following
options:
R Calling up display messages in message
memory ( Y page 226)
R Restarting the tyre pressure loss warning
system ( Y page 321)
R Calling up the service due date
( Y page 286)
Settings menu
Introduction
In the Settings menu, you have the following
options:
R change the instrument cluster settings
R change the light settings
R change the vehicle settings
R change the auxiliary heating settings
( Y page 223)
R change the convenience settings
R restore the factory settings
Menus and submenus219On-board computer and displaysZProCarManuals.com
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XPress a to confirm.
You will see the selected setting.XPress a to confirm.XPress the : or 9 button to select A,
B or Change C .XPress a to confirm.
You can now change the departure time.XPress the = or ; button to select the
display to be changed: hours, minutes.XPress the : or 9 button to set the
selected display.XPress the a button to store the entry.
The yellow indicator lamp on the auxiliary
heating button lights up.
Selecting the departure time or deactivat-
ing a selected departure time
XPress the = or ; button on the steer-
ing wheel to select the Settings menu.XPress the : or 9 button to select the
Heating submenu.XPress a to confirm.
You will see the selected setting.XPress a to confirm.XPress : or 9 to select one of the
three departure times or Timer off (no
timer active).XPress a to confirm.
If a departure time is selected, the yellow
indicator lamp lights up on the auxiliary
heating button.
Changing the departure time
Only vehicles with auxiliary heating
( Y page 136) have this function.
In the Heating submenu, you can select a
stored departure time or change a departure
time.
The auxiliary heating timer function calcu-
lates the switch-on time according to the out-
side temperature so that the vehicle is pre-
heated by the departure time. When the
departure time is reached, the auxiliary heat-
ing continues to heat for a further five
minutes and then switches off. The auxiliary
heating adopts the THERMATIC or
THERMOTRONIC temperature setting.
You can switch off the auxiliary heating by
using the remote control or the auxiliary heat-
ing button on the centre console.GDANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac-
tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To
guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from
the wind.
GWARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system for extended
periods. There is a risk of fire.
When the auxiliary heating is switched on,
make sure that no flammable material can
come into contact with hot vehicle compo-
nents.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for a longer
distance.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
224Menus and submenusOn-board computer and displays
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Safety systemsDisplay messagesPossible causes/consequences and M Solutions!÷
currently unavail‐
able See Owner's
ManualABS (Anti-lock Braking System), ESP ®
(Electronic Stability Pro-
gram), BAS (Brake Assist), PRE-SAFE ®
, the HOLD function, hill
start assist and ESP ®
trailer stabilisation are temporarily unavail-
able.
The adaptive brake lights and COLLISION PREVENTION ASSIST/
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷, å and ! warning lamps light up in
the instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes:
R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient.GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
XCarefully drive on a suitable stretch of road, making slight steer-
ing movements, at a speed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.XVisit a qualified specialist workshop.!÷
inoperative See
Owner's ManualABS, ESP ®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist
and ESP ®
trailer stabilisation are unavailable due to a malfunction.
The adaptive brake lights and COLLISION PREVENTION ASSIST/
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the J, ÷ , å and ! warning lamps light
up in the instrument cluster.
ATTENTION ASSIST is deactivated.GWARNINGDisplay messages227On-board computer and displaysZProCarManuals.com
Page 230 of 352
Display messagesPossible causes/consequences and M SolutionsThe brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.XDrive on carefully.XVisit a qualified specialist workshop immediately.÷
currently unavail‐
able See Owner's
ManualESP ®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist and
ESP ®
trailer stabilisation are temporarily unavailable.
The adaptive brake lights and COLLISION PREVENTION ASSIST/
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
The self-diagnosis function, for example, may not be complete.GWARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance may thus increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
XCarefully drive on a suitable stretch of road, making slight steer-
ing movements, at a speed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.XVisit a qualified specialist workshop.228Display messagesOn-board computer and displays
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Page 231 of 352
Display messagesPossible causes/consequences and M Solutions÷
inoperative See
Owner's ManualESP ®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist and
ESP ®
trailer stabilisation are not available due to a malfunction.
The adaptive brake lights and COLLISION PREVENTION ASSIST/
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.GWARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance may thus increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
XDrive on carefully.XVisit a qualified specialist workshop.T !
÷
inoperative See
Owner's ManualEBD (electronic brake force distribution), ABS, ESP ®
, BAS, PRE-
SAFE ®
, the HOLD function, hill start assist and ESP ®
trailer stabi-
lisation are unavailable due to a malfunction.
The adaptive brake lights and COLLISION PREVENTION ASSIST/
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷, å and ! warning lamps light up in
the instrument cluster and a warning tone sounds.
ATTENTION ASSIST is deactivated.GWARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock, for example, if you brake hard.
The steerability and braking characteristics may be severely affec-
ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
XDrive on carefully.XVisit a qualified specialist workshop immediately.Display messages229On-board computer and displaysZProCarManuals.com
Page 232 of 352
Display messagesPossible causes/consequences and M Solutions!
Release parking
brakeThe red ! indicator lamp flashes and a warning tone sounds.
A condition for automatic release of the electric parking brake is
not fulfilled ( Y page 163).
You are driving with the electric parking brake applied.XRelease the electric parking brake manually.The red ! indicator lamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake ( Y page 163).!
Parking brake See
Owner's ManualThe yellow ! warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:XSwitch the ignition off.XPress the electric parking brake handle for at least ten seconds.XMove the transmission selector lever to P.XConsult a qualified specialist workshop.The yellow ! warning lamp and the red ! indicator lamp
are lit.
The electric parking brake is malfunctioning.
To release:XSwitch off the ignition and turn it back on.XRelease the electric parking brake manually.
or
XRelease the electric parking brake automatically ( Y page 163).
If the electric parking brake still cannot be released:
XDo not drive on.XConsult a qualified specialist workshop.230Display messagesOn-board computer and displays
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