2019 MERCEDES-BENZ CLA COUPE warning lights

R
Ifth e windscreen in the area of the multi‐
function camera is dirty, or if the camera is
mis ted up, damaged or co vered.
R Ifth e traf fic signs are ha rdtodetect, e.g. due
to dirt or sno w,or because they are co vered
or due toinsuf ficient lighting.
R Ifth e information in the navigation sy stem's
digital map is incor rect or out-of-da te.
R Ifth e signs are ambiguous, e.g. tra ffic signs
on con stru ction sites or in adjacent lanes.
R Ifyo u turn sharpl y,when passing traf fic signs
outside the camera's field of vision.
Setting Traf fic Sign Assist
Re quirements:
R For automatic ado ption of speed limits:
Ac tive Dis tance Assi stDISTRONIC is acti va‐
te d. Multimedia sy
stem:
4 © 5
Settings 5
Assistance
5 Traffic Sign Assist
Ac tivating/deactivating automatic adoption
of speed limits #
Select Adopt limit . #
Activate or deacti vate the function.
The speed limits de tected byTraf fic Sign
Assi stare automatically adop tedby Active
Dis tance Assi stDISTRONIC.
% If one of thefo llowing sy stems is activated,
th e speed de tected can be manually adop ted
as the speed limit:
R Active Dis tance Assi stDISTRONIC
R Cruise control
R Variable limiter
Fu rther information (/ page 209).
Displaying de tected traf fic signs in the
medi a display #
Select Display in head unit. #
Activate or deacti vate the function. Ad
justing the type of warning #
Select Visual & audible ,Visual orNone.
Ad justing the warning threshold
This value de term ines the speed at which a
wa rning is issued when exceeded. #
Select Warning threshold. #
Set the desired speed. Blind Spot Assist and
Active Blind Spot
Assi stwith exitwa rning Fu
nction of Blind Spot Assist and Active
Blind Spot Assi stwith exitwa rning
Blind Spot Assist and Active Blind Spot Assi st
use two lateral, rear-facing radar sensors to
monitor the area up to40 m behind your vehicle
and 3 m directly next to yourvehicle.
If a vehicle is de tected at speeds ab ove appr ox‐
imately 12km/h and this vehicle subsequently
enters the monitoring range di rectly next to your
ve hicle, thewa rning lamp in the outside mir ror
lights up red. 246
Driving and pa rking

depends on
the settings forth eTraffic andTraf-
fic incidents options. #
Set the options (/ page370).
The following displa ysare available:
R Show all symbols
The Traffic andTraffic incidents options are
swit ched on.
R Only show symbols on theex pected route
The Traffic option is swit ched off, theTraffic
incidents option is switched on.
R Show no symbols
The Traffic incidents option is switched off.
The following hazard warnings are shown on the
map:
R Broken-down vehicles
R Accidents
R Haza rdous weather
R Gene ral hazards
R Hazard warning lights, when switched on
R Crosswind warning R
Mobile roadwor ks
The display is not available in all countries
and regions.
In theFe deral Republic of Germany the dis‐
play is cur rently available in theFe deral State
of Hesse.
% Ifth eve hicle is approaching a hazard spot
with a vehicle speed of at least 60 km/h, the
vo ice output "T raffic incident ahead" is
issued.
The voice output is not issued for hazardous
we ather.
Sending haza rdwa rnings
Au tomatically de tected hazard warnings are sent
by theve hicle. #
Tosend a haza rdwa rning yourself: tap on
th e media display when the map is shown.
The navigation menu is shown. #
Select ¡. #
Select Report traffic incident.
A prom ptis shown. #
Select Yes.
The Thank you for supporting accident pre-
vention. message appears. Ro
ute guidance with augmented reality Overview of
route guidance with augmented
re ality &
WARNING Risk of accident and inju ry
caused bydistraction, inco rrect image or
interpr etation of the display
The dis tance to ot herroad users or informa‐
tion, such as traf fic lights, can be incor rectly
assessed from the camera image. The cam‐
era image of the augmented reality display is
not suitable tobe used for driving. #
Alw ayske ep your eyes on the actual
tra ffic situation. Only glance brief lyat
th e camera image. #
Beaware that depending on the driving
situation there may be hazards that are
not captured in the camera image, e.g. 372
MBUX multimedia sy stem

Display messages
Possible causes/consequences and M
MSolutions
Re cognition of a restra int sy stem fault:
R The restra int sy stem warning lamp 6does not light up when the ignition is switched on.
R The restra int sy stem warning lamp 6lights up continuously or repeatedly during a journe y. #
Consult a qualified specialist workshop immediatel y.
6
Front left malfunction Con-
sult workshop (Example) *T
he cor responding restra int sy stem is faulty (/ page 35). &
WARNING Risk of inju rydue tomalfunctions in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or may
not deploy as intended during an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. De
tection of a restra int sy stem fault:
R The restra int sy stem warning lamp 6does not light up when the ignition is switched on.
R The restra int sy stem warning lamp 6lights up continuously or repeatedly during a journe y. #
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 537

Display messages
Possible causes/consequences and M
MSolutions
& inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle. Lights
Display messages
Possible causes/consequences and M
MSolutions
b Left dipped beam (Example)*T
he cor responding light source is defective. #
Drive on carefully. #
Consult a qualified specialist workshop immediatel y.
or #
Check whe ther you are permit tedto replace the light source yourself (/ page138).
% LED light bulbs: the display message forth e cor responding lamp appears only when allthe light-emitting diodes
in the lamp ha vefailed. 578
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
b Malfunction See Owner's
Manual *T
heexterior lighting is faulty. #
Consult a qualified specialist workshop.
Ve hicles with a trailer hitch: a fuse may haveblown. #
Pull over and stop theve hicle in accordance with the tra ffic conditions. #
Check the fuses and replace them if necessary (/ page 482).
b
Automatic driving lights
inoperative *T
he light sensor is faulty. #
Consult a qualified specialist workshop.
b Switch on headlamps *Y
ou are driving without lo w-beam headlamps. #
Turn the light switch totheL orà position.
b
Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch totheà position. Display messages and
warning/indicator lamps 57 9

Instrument display (standard)
Instrument display in
the widescreen cockpit Depending on
the display setting, the positions
of the indicator lamps on the instrument display
may dif fer from theex ample shown.
Wa rning and indicator lamps:
L Low beam(/
page128)
T St
anding lights(/ page128)
K High beam(/
page130)
#! Tu
rn signal lights( /page 130)
R Re
ar fog light(/ page128)
6 Re
stra int sy stem(/ page 583)
ü Seat belt not
fastened(/ page 588)
J Brakes (yellow)(/
page 583)
J Brakes (red)(/
page 583)
! Elect
ric pa rking brake (yellow)
(/ page 583)
! Electric parking brake (red)
(/
page 583)
! ABS malfunction(/
page 583)÷
ESP®
(/ page 583)
å ESP®
OFF(/ page 583)
L Distance warning(/ page 589)
Ù Electric powerst eering malfunction
(/ page 594)
; Engine diagnostics(/
page 590)
% Preglow
# Elect
rical fault( / page 590)
æ Fu
elreser vewith fuel filler cap loca‐
tion indicator(/ page 590)
? Ve
hicles with a widescreen cock‐
pit: Coolant too hot/cold
(/ page 590)
h Ty
re pressure monitor(/ page 592)
ï Trailer hit chis not operational or is
swiveling(/ page 594) 582
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
÷ ESP ®
wa rning lamp flashes The
yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
At least one wheel and tyre assemb lyhas reached its traction limit (/ page193). #
Adapt your driving style to suit thero ad and weather conditions.
÷ ESP ®
wa rning lamp lights
up The
yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning
Other drive sy stems and driving saf ety sy stems may also be malfunctioning. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems are
switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages on the multifunction displa y. #
Consult a qualified specialist workshop. 584
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
6 Re stra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
The restra int sy stem is faulty (/ page 35). &
WARNING Risk of inju rydue tomalfunctions in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or may not
deploy as intended during an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages on the multifunction displa y. #
Consult a qualified specialist workshop immediatel y.Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
lights up The
red seat belt warning lamp will light up once the engine has star ted.
In addition, a warning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt (/ page 39).588
Display messages and warning/indicator lamps