warning lights MERCEDES-BENZ E-CLASS CABRIOLET 2021 Owner's Manual

Lights
Lights
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
:
Left dipped beam (examp le) *T
he cor responding light source is defecti ve. #
Drive on carefull y. #
Consult a quali/ed specialist workshop immediatel y.
% LED light sources: the display message forth e cor responding light appears only when all the light-emitting diodes
in the light are faulty.
: Malfunction See Owner's
Manual *T
heexterior lighting is malfunctioning. #
Consult a quali/ed specialist workshop.
*V Vehicles wit ehicles wit h a tr
h a trailer hitc
ailer hitc h:
h:a fuse may ha veblown. #
Stop theve hicle in accordance with the tra1c conditions. #
Check the fuses and replace them if necessary (/ page 332).
:
Automatic driving lights
inoperative *T
he light sensor for automatic driving lights is malfunctioning. #
Consult a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
379
379

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
:
Active Light System inoper-
ative *T
he active headlamps are malfunctioning. #
Consult a quali/ed specialist workshop.
:
Switch on headlamps *Y
ou are driving without lo w-beam headlamps. #
Turn the light switch totheL orà position.
:
Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch totheà position.
:
Intelligent Light System
inoperative *T
he Intelli gent Light System is malfunctioning. The lighting system continues tofunction proper lywithout the functions
of the Intelligent Light System. #
Consult a quali/ed specialist workshop. 380 380
Displ
aymessages and warning/indicator lamps

Ins
Ins
tr
trument displ ay
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown.
Indicat
Indicat or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 431)
ü Seat belt (/ page 431)
ï Trailer hitch (/ page 432)
Ù Powe r steering (/ page 432)
ÿ Coolanttemp erature (/ page 433)
; Engine diagnostics (/ page 433)
% V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow#
Electricalfault (/ page 433)
8 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 433)
! Electric parking brake (red)
(/page 437)
! Electric parking brake (yellow)
(/page 437)
J Brakes (yellow) (/ page 437)
J Brakes (red) (/ page 437)
L Distancewarning (/ page 439)
Ó Active Brake Assist (/ page 439)
ê Active Brake Assist (/ page 439)
ä AIR BODYCONTROL (/ page 439)
ä DYNAMIC BODY CONTROL
(/ page 439)
! ABS (/page 440)
÷ ESP®
(/ page 440)
å ESP®
OFF (/ page 440)
h Tyre pressure monitoring system
(/ page 443) T
Standing lights (/ page 125)
L Low beam (/ page 125)
K High beam (/ page 127)
#! Turn signal lights (/ page 127)
R Rear fog light (/ page 125) 430 430
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ü
Seat belt warning lamp
lights up *T
he red seat belt warning lamp lights up once theve hicle has star ted.
In addition, an intermittent warning tone may sound.
The red seat belt warning lamp reminds the driver and front passenger tofasten their seat belts. #
Fasten your seat belt (/ page 44).
If yo u ha veplaced objects on the front passenger seat, there d seat belt warning lamp may remain lit. V
V
ehicle
ehicle W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Ù
Po we r steering warning
lamp (red) *T
he red po wer steering warning lamp is lit while theve hicle is running.
The po wer assistance or the steering itself is malfunctioning. &
W
WARNING
ARNING Risk of accident if steering capability is impaired
If th e steering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and tra1c conditions. Do not
continue driving under any circums tances. #
Consult a quali/ed speciali stwo rkshop. #
Notethe messages on the instrument displa y.432
432
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
#
Electrical fault warning lamp *T
hered electrical fault warning lamp is lit.
There is a fault in the electrics. #
Notethe messages on the instrument displa y.
8
Fu elreser vewarning lamp
lights up *T
he yellow fuel reser vewarning lamp lights up while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel. 436
436
Display messages and
warning/indicator lamps

Dr
Dr
iving syst
iving syst ems
ems W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
L
Wa rning lamp for distance
wa rning function *T
he red distance warning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obstacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the distance.
Fu nction of Active Brake Assist (/ page 205).
Ó Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
Due todirty sensors or a malfunction, the system is not available or thera nge of functions is restric ted. #
Notethe messages on the instrument displa y.
ê
Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
The system is switched o. or thera nge of functions has been automatically restric ted.
This may be the case if the driver is not wearing a seat belt or ano ther driving system has been activated. #
Obser vethe no tes on Active Brake Assist (/ page 205). Display messages and
warning/indicator lamps
439
439

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed specialist workshop. ÷
ESP ®
wa rning lamp 0ashes *
The yellow ESP ®
wa rning lamp 0ashes while theve hicle is in motion.
One or more wheels ha vereached their grip limit (/ page 186). #
Adapt your driving style tosuit thero ad and weather conditions.
÷ ESP ®
wa rning lamp lights up *
The yellow ESP ®
wa rning lamp is lit while theve hicle is running.
ESP ®
is malfunctioning.
Other driving systems and driving sa fety systems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the instrument displa y. &
W
W ARNI NG
ARNI NGRisk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot carr y outvehicle stabilisation. In addition, other driving saf ety sy stems are
swit ched o.. #
Drive on carefull y. #
Have ESP ®
ch ecked at a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
441
441

T
T
yr
yr e pr
e pr essur
essur e monit
e monit or
or W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
h
Ty re pressure monitoring
system warning lamp 0ashes *The
yellow tyre pressure monitor warning lamp (pressure loss/malfunction) 0ashes for appr oximately one minute and
th en remains lit.
The tyre pressure monitor is malfunctioning. &
W
WARNING
ARNING There is a risk of an accident if the tyre pressure monitoring system is malfunctioning
The tyre pressure monitoring system cannot issue a warning if there is pressure loss in one or more of the tyres.
Ty res with insu1cient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring system checked at a quali/ed specialist workshop. h
Ty re pressure monitoring
system warning lamp lights
up *T
he yellow tyre pressure monitoring system warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring system has de tected tyre pressure loss in at least one of the tyres. &
W
W ARNING
ARNING Risk of an accident due toinsu1cient tyre pressure
R The tyres can burst.
R The tyres can wearexcessively and/or une venly.
R The driving characteristics as well as the steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. Display messages and
warning/indicator lamps
443
443

Opening dimensions.............................. 367
Boo
Boo t separ
t separ at
ator
or
Closing................................................... .87
Opening.................................................. .87
Br
Br ak
ak e Assis
e Assist Syst t System
em
see BAS (Brake Assist System)
Br
Br ak
ak e
e0uid
0uid
No tes..................................................... 365
Br
Br ak
ak e f
e f or
orce disce distr tribution
ibution
EBD (Elect ronic Brake forc e Distribu-
tion).......................................................1 88
Br
Br ak
ak es
es
ABS (Anti-lock Braking System).............. 185
Ac tive Brake Assist................................. 205
Ad aptive brake lights.............................. 190
BAS (Brake Assist System).................... .186
Driving tips............................................ 158
EBD (Electronic Brake forc e Distribu-
tion).......................................................1 88
HOLD function....................................... 188
Limited braking e.ect (salt-treated
ro ads)................................................... .158
Ne w/replaced brake linings/brake
discs...................................................... 156 Ru
nning-in no tes.................................... 156
Br
Br aking assist aking assist ance
ance
see BAS (Brake Assist System)
Br
Br eakdo
eakdo wn
wn
Overvi ewofthe help functions................. 16
To w- starting........................................... 332
To wing away.......................................... 328
Tr anspo rting theve hicle........................ .330
Wheel chang e........................................ 346
Br
Br ea kdo
eakdo wn
wn
see Flat tyre
Butt
Butt ons
ons
St eering wheel....................................... 249 C
C
Calls
Calls Mercedes me......................................... 277
Camera
Camera Information............................................ 183
Camera
Camera see 360° Camera
see Dashcam
see Reversing camera Car
key
Car key
see Key
Car w Car w ash
ash
see Care
Car w
Car w ash (car
ash (car e)
e)............................................ 305
Car
Car -t
-to-X
o-X -Communication
-Communication
Displaying hazard warnings.................... 271
Care
Care 360° camera......................................... 311
Air-water duct........................................ 305
Automatic car wash.............................. .305
Carpet................................................... 312
Decorative foil........................................ 308
Display................................................... 312
Draught stop.......................................... 310
Exterior lighting...................................... 311
Fo lding draught stop.............................. 310
Head-up display..................................... 312
High-pressure cleaner............................3 06
Pa int...................................................... 307
Plastic trim............................................3 12
Re alwo od/trim elements..................... .312
Re versing camera..................................3 11
Ro of lining............................................. 312 Index
449 449

ç
O................................................ .401
ë O.................................................3 98
K Open/close soT top comple tely.... 378
! Parking brake See Owner's
Manual..................................................3 94
É Please reduce speed .................... .410
Ý Please wait 48 V battery charg-
ing......................................................... 418
h Rectify tyre pressure ..................... 421
Ø Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 424
! Release parking brake ...................397
¸ Replace air cleaner ....................... 391
Á Replace key.................................. 375
8 Reser vefuel le vel.......................... 390
6 Restraint sys. malfunction Con-
sult workshop ....................................... .372
# See Owner's Manual..................... 416
K SoTtop lo wering........................... 377 K
SoTtop Operation only up to
60 km/h................................................ 377
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 385
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 386
# Stop vehicle Lea veengine run-
ning ....................................................... 417
# Stop vehicle See Owner's Man-
ual......................................................... 417
É Stop vehicle Vehicle too low .......... 409
ç suspended .................................... 400
: Switch o. lights............................ 380
: Switch on headlamps .................... 380
á temp orarily una vailable Camera
view restric ted....................................... 408
¸ temp orarily una vailable Sensors
dirty....................................................... 407
Ø Top up AdBlue Emer gency op. in
XXX miles See Owner's Manual.............. 424 +
Top up coolant See Owner ’s
Manual.................................................. 389
¥ Top up washer 0uid...................... .388
! Turn on the ignition torelease
th e parking brake ................................... 397
d Vehicle is operational Switch o.
ignition before exiting............................. 383
É Vehicle rising Please wait.............. 410
É Vehicle rising ................................ 410
h Warning tyre defect....................... 421
h Wheel sensor(s) missing ................ 420
K While stationar y,apply the
brake before operating the soT top........ 377
Ø XX,X l Top up AdBlue Swit chon
ignition, wait 60 sec. or eng. start not
poss...................................................... 425
Ac tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 405
Ac tive Blind Spot Assist inoperative........ 406 454 454
Index