sensor MERCEDES-BENZ C CLASS 2021 Service Manual

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p *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 coolan tpum pis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. &
WARNIN GRisk ofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edorwhen ther eis afire intheengine compartmen t,th e
fo llo wing situat ionsmayocc ur:
R Youco uld come intoco ntact withho tga ses.
R Youco uld come intoco ntact withot her hot,escaping operating fluids. #
Beforeopen ingthehood, allowtheove rheat edengine tocool down. #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. Displa
ymessag esand warning/ indic ator lam ps 429

Ins
tallation locations................................ 41
Knee airbag.... .........................................4 1
Ov ervie w.. .................. ........................ ...... 41
PA SSENGER AIRBAGind icat orlam p....... 46
Pr otect ion.......................................... ...... 42
Side airbag ............................................... 41
Wi ndo wcur tain airbag .............................4 1
Air flow
Se tting. .................................................. 126
AIRM ATIC
Se tting.. .................................................1 89
Suspe nsion........... ............................ ..... 188
Alar m
see Panic alar m
Al ar m system
see ATA(anti-t heftal ar m system)
All-wheel drive
see 4MA TIC
Alt ernativ ero ute
see Route
Amb ientlighting
Se tting (mult imediasystem).. ................1 19 Andr
oidAuto
Con necting amob ilephon e...................2 70
Ending ...................................................270
Inf ormation ......................................... ... 270
Ov ervie w.. .......................................... ... 269
Sound settings... ................................... 270
Tr ans ferred vehicle data........................2 71
Anim als
Pe ts intheve hicle .............................. ..... 63
Anti-loc kbr aking system
see ABS(An ti-loc kBr akin gSy stem)
Anti-skid chains
see Snowch ains
Anti -thef tpr otection
Imm obiliz er...................................... ........ 85
Anticip ator yoccupa ntprotection
see PRE- SAFE®
(anticip ator yoccu‐
pa nt protect ion)
see PRE-S AFE®
PL US (antic ipatory
occupant protect ion plus)
Apple CarPla y®
Connec tinganiPhone ®
... ......................2 68
Ending ...................................................269 No
tes... .................................................2 68
Ov ervie w.......... .....................................268
Sound settings ......................................269
Tr ans ferred vehicle data........................2 71
Assis tance systems
see Drivin gsaf etysy stem
ASS YSTPL US
Batt erydi sconne ctionpe riods..... ..........3 01
Dis play ing theser vice duedate............ 300
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 300
Re gular maint enance work<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 300
Spec ialser vice requ iremen ts................3 00
ATA (anti-thef tala rm system)
Ac tivati ng/d eactiv ating theint erior
mo tion sensor.. ....................................... 88
Ar ming/ disarming theto w- aw ay alar m...8 7
Dea ctivating thealar m............................ 86
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 85
Fu nctio nof theint erior motion sensor.... 87
The tow- aw ay alar mfun ction ...................8 6
AT TENTI ONASSIST
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>164
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 165
Sy stem limit ations. ................................ 164 44
2
Inde x

0049
Turn On theIgnit iontoRelease
th ePa rking Brak e..................................4 00
0072 Vehicle Ready toDrive Swi tch
th eIgnit ionOffBef oreEx iting ............... 388
00CC Vehicle Rising Please Wait............ 409
00CC Vehicle Rising ...............................4 09
0077 Warning Tire Malfunction. .............4 19
0077 Wheel Sensor(s) Missing ............... 418
Ac tiveBli nd Spo tAssi stCur rently
Un available SeeOper ator' sMan ual...... 405
Ac tiveBli nd Spo tAssi stInoper ative..... .4 06
Ac tiveBr ak eAssi stFunctio nsCur‐
re ntl yLim ited See Operator's Manua l....4 13
Ac tiveBr ak eAssi stFunctio nsLim i‐
te dSee Oper ator's Manual. ...................4 14
Ac tiveDis tance AssistCur rently
Un available SeeOper ator' sMan ual...... 403
Ac tiveDis tance AssistInoper ative..... ... 403
Ac tiveDis tance AssistNo wAv ailable.. ..403 Ac
tiveLa ne Keeping AssistCamer a
Vi ew Restrict ed See Operator's Man‐
ua l... ...... ................................................ 406
Ac tiveLa ne Keeping AssistCur rentl y
Un available SeeOper ator' sMan ual...... 406
Ac tiveLa ne Keeping AssistInopera‐
tiv e... ..................................................... 406
Ac tivePa rking Assistand
PA RK TRONI CInoper ative See Opera‐
to r's Manua l......... .................................. 410
Ac tivePa rking AssistManeuv ering
Ass ista nce Restrict ed See Opera‐
to r's Manua l......... .................................. 410
Ac tiveSt eer ing Assis tCur rentl y
Un available DuetoMultiple Emer‐
ge ncy Stops... ........................................4 04
Ac tiveSt eer ing Assis tCur rentl y
Un available SeeOper ator' sMan ual...... 404
Ac tiveSt eer ing Assis tInoperativ e... ...... 404 Ad
aptiveHig hbeam Assis tCamer a
Vi ew Restrict ed See Operato r's Man‐
ua l... ...... ................................................ 387
Ad aptiveHig hbeam Assis tCur rently
Un available SeeOper ator' sMan ual.......3 87
Ad aptiveHig hbeam Assis tIn oper ative.. 387
App lyBrak eto Shif tfr om 'P'<0011001100110011001100110011001100110011001100110011001100110011
0011> 393
Apply Brak eto Shif tto 'R' ..................... 394
Au xiliary Batt eryMal functi on........ ........395
Begi nning Emergency Stop .................... 404
Blind SpotAssis tCur rentl yUna vaila‐
ble See Opera tor's Manua l..... ............... 405
Blind SpotAssis tInoper ative..... ............405
Chec kTire Pressur eSoon. .................... 421
Chec kTire Pressur eThen Restar t
Ru nFla tIndi cator....... <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ...421
Cr uise Contr olInop erati ve<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 402
Cr uise Contr olOff<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 402
Decr ease Spee d<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 420450
Index

Dr
iver' sDoo rOp en &Trans miss ion
No tin PRisk ofVehicle Rolling Away.... 394
Fr ont Passeng erAirbag Disabled See
Oper ator's Manual.... ............................. 381
Fr ont Passeng erAirbag Enabled See
Oper ator's Manual.... ............................. 381
Hazar dWa rning Flashe rsMalfunc‐
tioning. .................................................. 388
Mer cedes meconn ectServices Limi‐
te dSee Oper ator's Manual. ...................4 15
N Pe rm anen tly Ac tiveRi sk ofRo lling
Aw ay<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 394
Only Shiftto 'P' when Vehicle isSta‐
tio nar y...................................................3 93
Pla cetheKe yin theMar kedSpace
See Oper ator's Manual. .........................3 84
PRE-S AFEInoper ativeSee Oper a‐
to r's Manua l......... ................................. 382
Ra dar SensorsDir tySee Oper ator's
Manual. .................................................. 414 Re
versing NotPo ssible Service
Re quired ................................................ 395
Ru nFla tIndi catorInop erati ve............... 422
Ser vice Required Do NotShif tGear s
Vi sit Dealer.... ........................................3 94
St op Vehicle LeaveEngi neRunning
Wa itTrans miss ionCoolin g.. .................. 395
Ti re Press. Monit orCur rently
Un available ............................................ 417
Ti re Press. Monit orInopera tive... ........... 417
Ti re Pressur eMonit orInopera tiveNo
Wheel Sensors.. .....................................4 18
Ti re sOv erheat ed................................... 420
To Dese lect Por N, Dep ress Brak e
and StartEn gin e.. .................................. 394
To switc hengine off,pr ess and hold
St art/ Stop butt onforat lea st3
secs. orpress 3times...... ..................... 391
Tr ans miss ionMalfun ction Stop..... ........ 395 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
Ch ild sa fety lock (rear door s)...................6 1
Loc king (emerg encykey). ........................ 70
Ope ning (from inside ).............................. 68
Un loc kin g(emer gency key). .................... 70
Un loc kin g(fr om insid e)...........................6 8
Door controlpan el....................................... 16
DO T,Tire Iden tificat ionNumbe r(TI N)..... 348
Dr aw bar
see Tow- bar system
Dr inking anddriving... ...............................1 36
Dr ive Awa yAssis t.... .................................. 204
Dr ive Awa yAssis t
see Protect ion agains tcollision
Dr ive position
Inser ting.. ..............................................1 45 Inde
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1

Dr
ive pr og ram dis pla y........... .................... 142
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 60
Ac tiveBr ak eAssi st<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 178
BA S(Br akeAssi stSystem) ............... ..... 160
Cameras. .............. ............................ .....1 58
EBD (electr onic brak efo rc edis tribu‐
tion )......... ..............................................1 62
ESP ®
Cr ossw indAssis t.......................... 161
Ov ervie w.... ....................................... ....1 59
Ra dar and ultrasonic sensors................ 158
Re sponsibili ty.......... .............................. 158
ST EER CONTR OL............... ....................162
Dr ivin gsy stem
DY NA MIC BODY CONTR OL.... ................ 188
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 AIRMA TIC
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
Dr iving tips
Dr ink ing and drivin g..............................1 36
Gene raldr ivin gtips .......................... .....1 36
No teson breaking-in ane wvehicle.... ...135
Op timized acceleration.......................... 135
Dr ow siness detection
see ATTENTION ASSIST
DY NA MIC BODY CONT ROL
Sus pens io<0051001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 188
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> 143
Dis play ing engin edat a..........................1 43
Displ aying vehicle data.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 143
Dr ive pr og ram disp lay. <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 142
Dr ive pr og rams...... ................................ 141
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>141
Oper ating (DYN AMIC SELECTswitc h)....1 42
Selecti ngthedr ive pr ogr am.. ................1 42
Sho wing operationfe edbac k.................1 43 E
E1 0......... .....................................................371
Easy entryfe atur e
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 99
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 100
Easy exitfeatur e
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 99
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 100
EBD (electr onicbrak efo rc edis tribu‐
tion)
Functio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 162
ECO display
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>141 452
Index

Ext
erior mir rors
Anti-g lare mode (automatic).... .......... .... 123
Au tomatic mirrorfo lding function. .........1 25
Fo lding in/out.. .....................................1 22
Oper ating thememor yfunc tion.............1 01
Pa rking posit ion..................................... 124
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 122 F
Fa tig ue detection
see ATTENTION ASSIST
Fa vo rite s
Ad ding. .... ........................................ ...... 217
Callin gup ...............................................2 17
Del eting.. ...............................................2 17
Mo ving.. ............................................. ....2 17
Ov ervie w.. ..............................................2 16
Re nam ing<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>217
Fi rs t-aid kit(sof tsi ded) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> .......315
Flat tire
Chan gingawheel .................................. 359
MOE xtend edtires.. ................................ 316
No tes... ............................................. ..... 315
TIREFIT kit..............................................3 17 Flat
towing
see Tow- bar system
Floor mats.................................................. 113
Fo ilco vering
Ra dar and ultrasonic sensors................ 158
Fr ee sof tware.. ............................................ 34
Fr eq uencies
Tw o-w ayradio .................................. ...... 367
Fr ont airbag (driver ,fr ont passeng er).......4 1
Fr ont passeng erseat
see Seat
Fu el
Ad ditiv es.......................................... ...... 372
E1 0.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 371
Fu elreser ve<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 372
Gasolin e............................................. ....3 71
Qua lity(gaso line ).<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 371
Re fuel ing.... ...........................................1 48
Sulfu rcont ent............ ............................ 371
Ta nk cont ent<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ................372
Fu nction seat
see Door controlpanel Fu
ses
Bef orere placing afuse .......................... 331
Dashboar dfuse box.............................. 333
Fu se assignment diagram...................... 331
Fu se boxin theengine compartmen t.... 332
Fu se boxin thefront -passen gerfo ot ‐
we ll....................................................... 334
Fu se boxin thetrunk... .........................3 34
No tes... .................................................. 331
Fu ses
see Fuses G
Gar agedoor opener
Clea ring thememor y.... .........................1 54
Opening orclosing thedoor.. ................1 54
Pr ogr amming buttons. ........................... 152
Re sol ving problems ...............................1 54
Sync hronizi ngthero lling code.. .............1 53
Gas station search
St artin gaut omat icsear ch<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 236
Swi tching theaut omatic searchon/
of f.......................................................... 242
Gasoli ne...................................................... 371 45
4
Inde x

Ins
trum ent Disp lay
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 207
Ins trume ntclu ster ................................... 10
Wa rning/ indic ator lam ps.................. .... 425
Ins trum ent Displa yand on-boa rd
com puter
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 206
In te llig ent Light System
Ad aptiveHig hbeam Assis t..................... 117
Cor nering light..... <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> .........117
Int erior ligh ting
Ad jus ting ............ .................................... 119
Ambi entlighti ng........... <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> ......119
Re adin glam p.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 119
Swi tch-of fdel aytim e..... ........... .............120
Int erior motion sensor
Ac tivati ng/d eactiv ating........... ................88
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 87
Int ermed iatedes tination
Calculat ingaro utewit hint ermed iate
des tinatio ns...........................................2 37
Ent ering ............ .....................................236
Modi fying.. ....... .....................................237 St
artin gan aut omat icga sst atio n
sear ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 236
St artin gth eaut omatic service sta‐
tio nsear ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 242
Int erne tconnect ion
Comm unicationmod ulefunction ...... .... 279
Con nection status.. .......................... .....2 80
Displ aying thecon nect ionstatus.. .... .... 280
In fo rm atio n...................................... ...... 279
Re strictions <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> ...............279
Int erne tra dio
see TuneIn
iP hon e®
see AppleCa rPlay®
see Mercedes-Benz Link J
Jac k
St or ag elocation. ................................... 358
Jum p-startconnec tion
Gener alno tes.. ...................................... 323 K
KEYLESS- GO
Loc kingth eve hicle ..................................6 8
Pr oblem. .................................................. 69
Un loc kin gse tting.... ................................ 65
Un loc kin gth eve hicle .............................. 68
Kic kdo wn
Using... .................................................. 147
Knee airbag .................................................. 41 L
Labelin g(tir es)
see Tire labeling
Lam p
see Interior light ing
Lam ps(Ins trum ent Displa y)
see Warning/ indic ator lam ps
Lane detection (automatic )
se eAc tiveLa ne Keeping Assist
Lane Keeping Assist
see ActiveLa ne Keeping Assist
Languag e
No tes... .................................................2 25 456
Index

Seat
beltwarning
see Seat belts
Seat belts
Ac tivati ng/d eactiv ating seat belt
ad jus tment ........... ...................................41
Ad jus ting theheight... ............................. 40
Cent errear seat (releasi ng).<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 39
Fa stening.. ............................................... 40
Re duced protect ion.. ...............................3 8
Re leasing .................................................4 1
Sea tbel tad jus tment (function) ............... 40
Wa rning lam p................................... ........ 41
Seat cover(C are)...... ............ ..................... 312
Seat heating
Ac tivati ng/d eactiv ating........... ................96
Se at ventilat ion
Ac tivati ng/d eactiv ating........... ................97
Second telephone
Conn ecting... .........................................2 59
Fe atur es................................................ 259
Select ingage ar
see Changing gears Select
orleve r
see DIRECT SELECTleve r
Self-t est
Au tomatic front pass engerfront air‐
bag shut off..... .........................................4 6
Sensor s(car e)............................................ 311
Ser vice center
see Qualif iedspecialis two rkshop
Ser vice interva ldisp lay
see ASSYST PLUS
Ser vice station search
St artin gaut omat icsear ch<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 242
Se tting aspeed
see Cruise control
Se tting summ ertime.... ............................2 22
Se tting theda te form at....... ..................... 223
Se tting thedis tance unit.......................... 226
Se tting thema pscale
see Map
Shif tpa dd les
see Steer ing wheel paddle shifters Shif
ting gears
Gea rshif tre comme nda<0057004C00520051001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 146
Shor tmessag es
see Text mes sage s
Side airbag.. .................................................4 1
Side impact protection. ............................ 197
Side windo ws
Child safetyloc kin there ar
passe nger com partment. ........................ 63
Closin g....................................................7 6
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 79
Co nvenienc eclosing featur e...................7 9
Con venie nce openi ng<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ......78
Opening... ................................................ 76
Opening withth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 78
Pr oblem. .................................................. 79
Ro ller sunblin d.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 84
Size designation (tires) ............................. 350
Sliding sunroof
Au tomatic featur es..................................8 2
Closin g....................................................8 0
Closin gusin gth eSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 79
Ope <0051004C0051004A001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 80
Ope ning with theSmar tKey <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 78 Inde
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