2019-2024 Mercedes CLA 4 Door Display messages and warning/indicator lamps -> Warning and indicator lamps User Manual
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Display messages and warning/indicator lamps -> Warning and indicator lamps for Your Mercedes CLA 4 Door Second Generation (2019-2024)

WWararning and indicatning and indicator lamor lampsps
OvOverervieview of indicatw of indicator and wor and wararning lamning lampsps
Some systems will perform a self-test when the
vehicle is switched on. Some indicator and warn-
ing lamps may briey light up or ash. This behav-
ior is non-critical. These indicator and warning
lamps indicate a malfunction only if they light up
or ashaer the vehicle has been started or dur-
ing a journey.
S
Sttandarandard insd instrtrument displayument display
WWidescridescreen coceen cockpit inskpit instrtrument displayument display
Depending on the display setting, the positions of
the indicator lamps on the instrument display may
dier from the example shown.
Indicat
Indicator and wor and wararning lamning lamps:ps:
6
Restraint system (/ page 388)
ü
Seat belt (/ page 388)
Ù
Power steering (/ page 389)
ÿ
V
Vehicles witehicles with a widescrh a widescreen coceen cockpitkpit::
coolant temperature (/ page 390)
;
Engine diagnostics (/ page 390)
#
Electrical malfunction (/ page 390)
æ
Reserve fuel with fuel ller ap loca-
tion indicator (/ page 390)
F
USA: electric parking brake (red)
(/ page 394)
!
Canada: electric parking brake (red)
(/ page 394)
!
Electric parking brake (yellow)
(/ page 394)
é
USA: Recuperative Brake System
(/ page 394)
J
Canada: brakes (yellow)
(/ page 394)
$
USA: brakes (red) (/ page 394)
J
Canada: brakes (red) (/ page 394)
L
Distance warning (/ page 397)
Ó
Active Brake Assist (/ page 397)
ê
Active Brake Assist (/ page 397)
!
ABS (/ page 398)
÷
ESP
®
(/ page 398)
å
ESP
®
OFF (/ page 398)
Display messages and warning/indicator lamps
387
387
h
Tire pressure monitoring system
(/ page 400)
T
Parking lights (/ page 114)
L
Low beam (/ page 114)
K
High beam (/ page 115)
#!
Turn signal lights (/ page 115)
R
Rear fog light (/ page 114)
Occupant safeOccupant safetyty
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
6
Restraint system warning
lamp
*The restraint system red warning lamp is lit while the vehicle is on.
The restraint system is malfunctioning (/ page 38).
&
W
WARNINGARNING Risk of injury due to malfunctions in the restraint system
Components in the restraint system may be activated unintentionally or not deploy as planned in an accident.
#
Have the restraint system checked and repaired immediately at a qualied specialist workshop.
#
Drive on carefully.
#
Note the messages on the instrument display.
#
Consult a qualied specialist workshop immediately.
388388
Display messages and warning/indicator lamps
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
ü
Seat belt warning lamp
ashes
*The red seat belt warning lamp ashes and an intermittent warning tone sounds.
The driver or front passenger has not fastened his/her seat belt while the vehicle is in motion.
#
Fasten your seat belt (/ page 42).
There are objects on the front passenger seat.
#
Remove the objects from the front passenger seat.
ü
Seat belt warning lamp
lights up
*The red seat belt warning lamp lights up for six seconds once the vehicle has started.
In addition, an intermittent warning tone may sound.
The red seat belt warning lamp reminds the driver and front passenger to fasten their seat belts.
#
Fasten your seat belt (/ page 42).
If you have placed objects on the front passenger seat, the red seat belt warning lamp may remain lit.
VVehicleehicle
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
Ù
Power steering warning
lamp (red)
*The red power steering warning lamp is lit while the vehicle is running.
The power assistance or the steering itself is malfunctioning.
&
W
WARNINGARNING Risk of accident if steering capability is impaired
If the steering does not function as intended, the vehicle's operating safety is jeopardized.
Display messages and warning/indicator lamps
389
389
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
#
Pull over and stop the vehicle safely as soon as possible, paying attention to road and trac conditions. Do not
continue driving under any circumstances.
#
Consult a qualied specialist workshop.
#
Note the messages on the instrument display.
EngineEngine
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
ÿ
Coolant warning lamp (red)
*The red coolant warning lamp is lit while the engine is running.
Possible causes:
R
The temperature sensor is malfunctioning
R
The coolant level is too low
R
The air supply to the radiator is obstructed
R
The radiator fan is faulty
R
The engine coolant pump is faulty
If there is an additional warning tone, the coolant temperature has exceeded the maximum permissible temperature.
390390
Display messages and warning/indicator lamps
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
&
W
WARNINGARNING Risk of burns when opening the hood
If you open the hood in the event of an overheated engine or re in the engine compartment, the following situations
may occur:
R
You may come into contact with hot gases.
R
You may come into contact with other escaping hot operating uids.
#
Before opening the hood, allow the engine to cool down.
#
In the event of a re in the engine compartment, keep the hood closed and call the re service.
#
Stop immediately in accordance with the trac conditions and switch o the vehicle. Do not continue driving.
#
Note the messages on the instrument display.
If t
If the coolant the coolant tememperperaturature displae display is at ty is at the lowhe lower end of ter end of the the tememperperaturature scale:e scale:
#
Consult a qualied specialist workshop.
If t
If the coolant the coolant tememperperaturature displae display is at ty is at the upper end of the upper end of the the tememperperaturature scale:e scale:
#
Exit the vehicle and keep a safe distance from it until the engine has cooled down.
#
Check the coolant level (/ page 264).
#
Make sure that the air supply to the radiator is not obstructed.
#
Avoiding high loads on the engine, drive to the nearest qualied specialist workshop. In doing so, ensure that the
coolant temperature display remains below the red area.
Display messages and warning/indicator lamps
391
391
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
ÿ
Coolant warning lamp (yel-
low)
*The yellow coolant warning lamp is lit while the engine is running.
Possible causes:
R
The temperature sensor is malfunctioning
R
The charge air, transmission oil or battery cooling is faulty
R
The radiator shutters are blocked or defective
#
Avoiding high loads on the engine, drive to the nearest qualied specialist workshop.
;
Engine diagnosis warning
lamp
*The yellow Check Engine warning lamp is lit while the engine is running.
A malfunction has occurred in the engine, the exhaust system or the fuel system.
The emission limit values may be exceeded and the engine may be in emergency mode.
In some states, legal requirements stipulate that you must immediately consult a qualied specialist workshop as soon
as the yellow Check Engine warning lamp lights up.
#
Have the vehicle checked as soon as possible at a qualied specialist workshop.
#
Electrical malfunction warn-
ing lamp
*The red electrical malfunction warning lamp is lit.
There is a malfunction in the electrics.
#
Note the messages on the instrument display.
392392
Display messages and warning/indicator lamps
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
æ
Fuel reserve warning lamp
ashes
*The yellow fuel reserve warning lamp lights up while you are driving.
There has been pressure loss in the fuel system. The fuel ller cap is not closed correctly or the fuel system is leaking.
#
Close the fuel ller cap.
If the fuel ller cap has already been closed correctly:
#
Consult a qualied specialist workshop.
æ
Fuel reserve warning lamp
lights up
*The yellow fuel reserve warning lamp lights up while the engine is running.
The fuel supply has dropped into the reserve range.
#
Refuel.
Display messages and warning/indicator lamps
393
393
BrBrakakeses
WWararning/indicatning/indicator lamp Por lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
F
Electric parking brake indi-
cator lamp (red) (USA only)
!
Electric parking brake indi-
cator lamp (red) (Canada
only)
!
The electric parking brake
(yellow) indicator lamp
*The red electric parking brake indicator lamp ashes or is lit.
The yellow electric parking brake indicator lamp is also lit in the event of a malfunction.
#
Note the messages on the instrument display.
394394
Display messages and warning/indicator lamps
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
é
Recuperative Brake System
warning lamp (USA only)
J
Brakes warning lamp (yel-
low) (Canada only)
*The yellow é warning lamp (USA only) or the yellow J brake warning lamp (Canada only) is lit while the vehicle is
running.
&
W
WARNINGARNING Risk of an accident due to a brake system malfunction
If the brake system is malfunctioning, braking characteristics may be impaired.
#
Drive on carefully.
#
Have the brake system checked immediately at a qualied specialist workshop.
#
Adjust your speed and drive on carefully, leaving a suitable distance to the vehicle in front.
#
If the instrument display shows a display message, observe it.
#
Consult a qualied specialist workshop.
Display messages and warning/indicator lamps
395
395
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
$
Brake warning lamp (USA
only)
J
Brake system warning lamp
(Canada only)
*The red brake warning lamp is lit while the vehicle is running.
Possible causes:
R
The brake force boosting is malfunctioning and the braking characteristics may be aected.
R
There is insucient brake uid in the brake uid reservoir.
#
Note the messages on the instrument display.
&
W
WARNINGARNING Risk of accident and injury if brake force boosting is malfunctioning
If brake force boosting is malfunctioning, increased brake pedal force may be necessary for braking. The braking
characteristics may be impaired. The braking distance can increase in emergency braking situations.
#
Stop in a safe location immediately. Do not continue driving.
#
Consult a qualied specialist workshop.
&
W
WARNINGARNING Risk of an accident due to low brake uid level
If the brake uid level is too low, the braking eect and the braking characteristics may be impaired.
#
Pull over and stop the vehicle safely as soon as possible, paying attention to road and trac conditions. Do not
continue driving under any circumstances.
#
Consult a qualied specialist workshop.
#
Do not add brake uid.
396396
Display messages and warning/indicator lamps
DrDriving systiving systemsems
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
L
Warning lamp for distance
warning function
*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.
If there is an additional warning tone, you are approaching an obstacle at too high a speed.
#
Be prepared to brake immediately.
#
Increase the distance.
Function of Active Brake Assist (/ page 177).
Ó
Active Brake Assist warning
lamp
*The Active Brake Assist warning lamp is on.
Due to dirty sensors or a malfunction, the system is not available or the range of functions is restricted.
#
Note the messages on the instrument display.
ê
Active Brake Assist warning
lamp
*The Active Brake Assist warning lamp is on.
The system is switched o or the range of functions has been automatically restricted.
This may be the case if the driver is not wearing a seat belt or another driving system has been activated.
#
Observe the notes on Active Brake Assist (/ page 177).
Display messages and warning/indicator lamps
397
397
DrDriving safeiving safety systty systemsems
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
!
ABS warning lamp
*The yellow ABS warning lamp is lit while the vehicle is running.
ABS is malfunctioning.
If an additional warning tone sounds, EBD is malfunctioning.
Other driving systems and driving safety systems may also be malfunctioning.
#
Note the messages on the instrument display.
&
W
WARNINGARNING There is a risk of skidding if EBD or ABS is malfunctioning
The wheels may lock during braking.
The steerability and braking characteristics are heavily impaired and the braking distance may increase. In addition,
other driving safety systems are switched o.
#
Drive on carefully.
#
Have the brake system checked immediately at a qualied specialist workshop.
÷
ESP
®
warning lamp ashes
*
The yellow ESP
®
warning lamp ashes while the vehicle is in motion.
One or more wheels have reached their grip limit (/ page 159).
#
Adapt your driving style to suit the road and weather conditions.
398398
Display messages and warning/indicator lamps
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
÷
ESP
®
warning lamp lights up
*
The yellow ESP
®
warning lamp is lit while the vehicle is running.
ESP
®
is malfunctioning.
Other driving systems and driving safety systems (e.g. BAS) may also be malfunctioning.
#
Note the messages on the instrument display.
&
W
WARNINGARNING Risk of skidding if ESP
®
is malfunctioning
If ESP
®
is malfunctioning, ESP
®
cannot carry out vehicle stabilization. In addition, other driving safety systems are
switched o.
#
Drive on carefully.
#
Have ESP
®
checked at a qualied specialist workshop.
å
ESP
®
OFF warning lamp
*
The yellow ESP
®
OFF warning lamp is lit while the vehicle is running.
ESP
®
is deactivated.
Other driving systems and driving safety systems may also be inoperative.
&
W
WARNINGARNING Risk of skidding when driving with ESP
®
deactivated
ESP
®
does not act to stabilize the vehicle. The availability of further driving safety systems is also limited.
#
Drive on carefully.
#
Deactivate ESP
®
only for as long as the situation requires.
Display messages and warning/indicator lamps
399
399
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
If ESP
®
cannot be activated, ESP
®
is malfunctioning.
#
Have ESP
®
checked immediately at a qualied specialist workshop.
#
Observe the notes on deactivating ESP
®
(/ page 159).
TTirire pre pressuressure monite monitoror
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
h
Tire pressure monitoring
system warning lamp ashes
*The yellow tire pressure monitor warning lamp (pressure loss/malfunction) ashes for approximately one minute and
then remains lit.
The tire pressure monitor is malfunctioning.
&
W
WARNINGARNING There is a risk of an accident if the tire pressure monitoring system is malfunctioning
The tire pressure monitoring system cannot issue a warning if there is pressure loss in one or more of the tires.
Tires with insucient tire pressure may impair the driving characteristics as well as steering and braking.
#
Have the tire pressure monitoring system checked at a qualied specialist workshop.
400400
Display messages and warning/indicator lamps
WWararning/indicatning/indicator lampPor lampPossible causes/conseqossible causes/consequences anduences and MM SolutionsSolutions
h
Tire pressure monitoring
system warning lamp lights
up
*The yellow tire pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tire pressure monitoring system has detected tire pressure loss in at least one of the tires.
&
W
WARNINGARNING Risk of an accident due to insucient tire pressure
R
The tires can burst.
R
The tires can wear excessively and/or unevenly.
R
The driving characteristics as well as the steering and braking may be greatly impaired.
You could then lose control of the vehicle.
#
Observe the recommended tire pressures.
#
Adjust the tire pressure if necessary.
#
Stop the vehicle in accordance with the trac conditions.
#
Check the tire pressure and the tires.
Display messages and warning/indicator lamps
401
401

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