2021 MERCEDES-BENZ E-CLASS CABRIOLET sensor

Light
s Displa
ymess ages
Possible causes/conseq uencesand0050 0050
Solutions
: Check LeftLow
Beam (exa mp le) *T
hecor responding lightsourceisfaulty . #
Drive on car efull y. #
Con sult aqu alif ied spec ialistwo rkshop immediat ely.
% LED lightsour ces: thedispla ymessag efo rth ecor responding lightappea rsonl ywhen allthelight- emitt ing
diodes inthelight arefa ulty .
: Malf unctionSee Oper a-
to r’s Man ual *T
heexterior lighting ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
: Automatic HeadlampMode
Inoperative *T
helight sensor ismalfunctionin g. #
Consult aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 35
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Act ive Lane Keeping Assist
Currently Unavailable See
Operator' sManual *A
ctiveLane Keeping Assistis temp orarily una vailable.
The ambien tcon dition sar eouts idethesy stem limits (/page19 7).
As soon astheambient conditions arewit hin thesy stem limits, thesy stem will become available again. #
Drive on .
Ac tiveLan eKeep ingAssist
In oper ative *A
ctiveLane Keeping Assistis malfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop.
ç
00B0
00C7
¸ Currently Unavailable
Rada rSensors Dirty *T
heradar sensor system ismalfunct ioning.Possible causes:
R Dirton thesensor s
R Hea vyrain or sno w
R Extende dcou ntrydr ivi ng without other traf fic, e.g. inthedeser t
Dr iving systems anddriving safetysy stems maybe malfunct ioningortemp orarily una vailable.
Onc eth ecause ofthepr oblem isno long erpresent ,th edr iving systems anddriving safetysy stems willbeavailable
ag ain.
If th edispla ymessag edoes notdisappear : #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions. #
Clea nallsenso rs(/ pag e27 6). #
Restar tth eengine. Displa
ymessag esand warning/ indic ator lam ps 37
3

Ti
re pres sur emoni tor Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Tire Press. MonitorCur-
rent lyUnavailable *T
her eis int erfere nce from apo we rful radio signal sourceAs are sult, nosignals from thetir epr essur esensor sar e
being recei ved. The tirepr essur emonit oring system istemp orarily una vailable.
The tirepr essur emon itor ing system will restar taut omat icallyas soon asthecause hasbeen rectif ied. #
Drive on.
Tir ePre ss. Moni torInope ra-
tive *T
hetirepr essur emonit oring system ismalfunct ioning. &
WARNIN GThe reisarisk ofan accident ifth etir epr essur emonit oring system ismalfunct ioning
The tirepr essur emonit oring system cann otissue awa rning ifth er eis pressur eloss inone ormor eof thetir es.
Ti re swit hinsuf ficie nttirepr ess urema yim pa irth edr iving charact eristic sas wellas steer ing and braking. #
Have thetir epr essur emonit oring system checkedat aqu alif ied spec ialistwo rkshop. Tire
Pressure MonitorInop-
erative NoWheel Sensors *T
hewheels installed donotha ve suit able tirepr essur esensor s.The tirepr essur emonit oring system isdeactiv ated. #
Installwheels withsuit able tirepr essur esen sors.
0077 Wheel Sensor(s )Missin g *T
her eis no signal from thetir epr essur esensor sof one ormor ewheels. Nopressur eva lue isdispla yedfo rth e
af fect ed tire. #
Have thefa ulty tirepr ess uresen sor replaced ataqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 385

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p(red) *T
he redcoolant warning lam pis lit while theengine isrunning .
Po ssible causes:
R The temp eratur esensor ismalfunct ioning
R The coolant leve lis toolow
R The airsuppl yto thera diat orisobs truct ed
R The radiat orfanis faulty
R The engin eco olan tpum pis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions andswitchof fth eengine. Donotcon tinue
dr iving under anycir cums tances. #
Notethemessag eson themultifunc tiondispla y. 396
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
If th ecoolant temp eratur edispla yis at thelowe rend ofthete mp eratur escale: #
Consult aqu alif ied spec ialistwo rkshop.
If th ecoolant temp eratur edispla yis at theupper endofthete mp eratur escale: #
Exitth eve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. #
Chec kth ecoolant leve l(/ page269) . #
Mak esur eth at theair supply tothera diat orisno tobs truct ed. #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at the
cool anttemp eratur edispla yre mains belowthere dar ea.
ÿ Coolant warning lam p(yel‐
lo w) *T
he yello wcoolan twa rning lam pis lit while theengine isrunning .
Po ssible causes:
R The temp eratur esensor ismalfunct ioning
R The charge air,tr ans miss ionoilorbat tery cool ingisfaulty #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop.
00B9
Engine diagnosis warning
lam p *T
he yello wChec kEn gine warning lam pis lit while theengine isrunning .
A ma lfunctio nha soccu rred intheengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exc eeded andtheengine maybe inemer gency mod e.
In som est at es, legalrequ iremen tsstipulat eth at youmus timm ediat elyco nsult aqu alif ied spec ialistwo rkshop as
soon astheye llo wChec kEn gine warning lam plight sup. Disp
lay mess ages and warning/ indic ator lam ps 39
7

0077
Warning Tire Malfunction. ............ 387
0077 Wheel Sensor(s) Missing..............3 85
0059 Whilest atio nary,appl yth e
br ak es bef oreoper ating thesof tto p.... .349
Ac tiveBli nd Spo tAssi stCur rently
Un available SeeOper ator' sMan ual.......3 72
Ac tiveBli nd Spo tAssi stInoper ative..... .3 72
Ac tiveBr ak eAssi stFunctio nsCur‐
re ntl yLim ited See Operator's Manua l...380
Ac tiveBr ak eAssi stFunctio nsLim i‐
te dSee Oper ator's Manual. ...................3 81
Ac tiveDis tance AssistCur rently
Un available SeeOper ator' sMan ual...... 369
Ac tiveDis tance AssistInoper ative..... ... 369
Ac tiveDis tance AssistNo wAv ailable.. ..369
Ac tiveLa ne Keeping AssistCur rentl y
Un available SeeOper ator' sMan ual.......3 73
Ac tiveLa ne Keeping AssistInopera‐
tiv e... ..................................................... 373 Ac
tiveSt eer ing Assis tCur rentl y
Un available SeeOper ator' sMan ual.......3 70
Ac tiveSt eer ing Assis tInoperativ e... ...... 370
Ac tiveSt eer ing Asst.Cur rentl y
Un available DuetoMultiple Emer‐
ge ncy Stops... ........................................3 70
Ac tiveSt op &Go Assis tCur rently
Un available SeeOper ator' sMan ual.......3 71
Ac tiveSt op &Go Assis tInoper ative
See Oper ator's Manual.. ........................ 371
Ad aptiveHig hbeam Assis tCur rently
Un available SeeOper ator' sMan ual...... 353
Ad aptiveHig hbeam Assis tIn oper ative.. 353
Ad aptiveHig hbeam Assis tPlus Cur‐
re ntl yUna vailable SeeOpera tor's
Manua l......... ......................................... 353
Ad aptiveHig hbeam Assis tPlus Inop‐
er ativ e...................................................3 53
Apply Brak eto Shif tfr om 'P'<0011001100110011001100110011001100110011001100110011001100110011
0011> 359
Apply Brak eto Shif tto 'R' ..................... 359 Appl
yBr ak eto Shif tto Dor R............. ...359
Au xiliary Batt eryMal functi on........ .........361
Begi nning Emergency Stop .................... 370
Bli nd Spo tAssi stCur rentl yUna vaila‐
ble See Opera tor's Manua l..... ............... 372
Bli nd Spo tAssi stInoper ative.... .............3 72
Cann otStartEn gin eSee Operat or's
Man ual..................................................3 84
Chec kTire Pressur eSoon. .................... 388
Chec kTire Pressur eThen Restar t
Ru nFla tIndi cator....... <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ...389
Cr uise Contr olInop erati ve<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 368
Cr uise Contr olOff<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 368
Decr ease Spee d<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 388
De vice Detected atDia gnos ticsCon‐
nectio nSee Operator's Manua l.............3 81
Dr iver' sDoo rOp en &Trans miss ion
No tin PRisk ofVehicle Rolling Away.... 360
Engine CanNo wBe Started<0011001100110011001100110011001100110011001100110011001100110011
00110011> 384 41
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Fr
ont Passeng erAirbag Disabled See
Oper ator's Manual.... ............................3 45
Fr ont Passeng erAirbag Enabled See
Oper ator's Manual.... ............................3 45
Hazard Warning Flashe rsMalfunc‐
tioning. .................................................. 353
N Pe rm anen tly Ac tiveRi sk ofRo lling
Aw ay<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 360
Only Shiftto 'P' when Vehicle isSta‐
tio nar y...................................................3 59
Pa rking Assistand PARK TRONI C
In operativ eSe eOperat or'sMan ual.......3 77
Place theKe yin theMar kedSpace
See Oper ator's Manual. .........................3 48
PRE-S AFEInoper ativeSee Oper a‐
to r's Manua l......... ................................. 346
Re versing NotPo ssible Service
Re quired ........ ........................................ 360
Ru nFla tIndi catorInop erati ve............... 389Ser
vice Required Do NotShif tGear s
Vi sit Dealer.... ........................................3 60
St op Vehicle LeaveEngi neRunning
Wa itTrans miss ionCoolin g.. ...................3 61
Ti re Press. Monit orCur rently
Un available ............................................ 385
Ti re Press. Monit orInopera tive... ..........3 85
Ti re Pressur eMonit orInopera tiveNo
Wheel Sensors.. .................................... 385
Ti re sOv erheat ed................................... 387
To Dese lect Por N, Dep ress Brak e
and StartEn gin e.. .................................. 359
To switc hengine off,pr ess and hold
St art/ Stop butt onforat lea st3sec‐
onds orpress 3times. ........................... 357
Tr af fic Sign AssistCur rently Unavail‐
able SeeOperat or'sMan ual.................. 371
Tr af fic Sign AssistInoper ative..... .......... 371
Tr ans miss ionMalfun ction Stop..... ........ 360 Displa
yon thewindsh ield
see Head- upDis play
Dis tance control
see ActiveDis tance AssistDIS TRONI C
DI ST RO NIC
see ActiveDis tance AssistDIS TRONI C
Do or
Loc king (emerg ency key). ........................ 72
Opening (from inside)... ........................... 69
Po we rclosi ngfunction ............................ 72
Un loc kin g(emer gency key). .................... 72
Un loc kin g(fr om insid e)...........................6 9
Door controlpan el....................................... 14
DO T,Tire Iden tificat ionNumbe r(TI N)..... 312
Dr aw bar
see Tow- bar system
Dr inking anddriving... ...............................1 42
Dr ive Awa yAssis t.... .................................. 215
Dr ive Awa yAssis t
see Protect ion agains tcollision
Dr ive position
Inser ting.. ..............................................1 53 Inde
x41
7

Dr
ive pr og ram dis pla y........... .................... 150
Dr ive pr og rams
se eDY NA MIC SELE CT
Dr iver's seat
see Seat
Dr iving safetysy stem
AB S(An ti-loc kBr akin gSy stem) .............1 66
Ac tiveBr ak eAssi st<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 185
BA S(Br akeAssi stSystem) ............... ..... 166
Cameras. .......................................... .....1 64
EBD (electr oni cbr ak efo rc edis tribu‐
tion )................................................... ....1 68
ESP ®
Cr ossw indAssis t............ .............. 167
Ov ervie w.... ....................................... ....1 65
Ra dar and ultrasonic sensors................ 164
Re sponsibili ty.......... .............................. 164
ST EER CONTR OL............... ....................168
Dr ivin gsy stem
DY NA MIC BODY CONTR OL.... ................ 199
Dr ivin gsy stem
see 360°Camer a
see ActiveBli nd Spo tAssi st
see ActiveDis tance AssistDIS TRONI C
see ActiveEmerg encyStop Assis t see
ActiveLa ne Chang eAssi st
see ActiveLa ne Keeping Assist
see ActivePa rking Assist
see ActiveSpe edLimi tAssi st
see ActiveSt eer ing Assis t
see AIRBODY CONTR OL
see ATTENTION ASSIST
see Blind SpotAssis t
see Cruise control
see Driving safetysy stem
see HOLD function
see Parking AssistPA RK TRONI C
see Rear vie wcam era
see Traf fic Sign Assist
Dr ivin gtips
Dr ink ing and drivin g.............................. 142
Gene raldr ivin gtips .......................... .....1 42
No teson breaking-in ane wvehicle.... ...140
Op timized acceleration.......................... 141
Dr ow siness detection
see ATTENTION ASSIST
DY NA MIC BODY CONT ROL
Sus pens io<0051001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 199 Dyna
micha nd ling cont rolsy stem
see ESP®
(Ele ctro nic Stabilit yPr og ram)
DY NA MIC SELECT
Conf iguring drive pr ogr am I.<0011001100110011001100110011001100110011001100110011001100110011
00110011> 150
Dis play ing engin edat a..........................1 50
Displ aying vehicle data.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 150
Dr ive pr og ram disp lay. <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 150
Dr ive pr og rams...... ................................149
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>149
Oper ating (DYN AMIC SELECTswitc h)....1 50
Selecti ngthedr ive pr ogr am.. ................1 50 E
E1 0......... ....................................................335
Easy entryfe atur e
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 101
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 103
Easy exitfeatur e
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 101
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 103
EBD (electr onicbrak efo rc edis tribu‐
tion)
Functio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 168 41
8
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