2020 MERCEDES-BENZ C-CLASS SEDAN tires

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0077 Check Tires *T
hetirepr essur ein one ormor etir es has dropped significantl y.The wheel position isdispla yed. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
Ti re pressur esthat areto olow pose thefo llo wing hazar ds:
R The tires ma ybur st,especiall yas theload andvehicle speed increase.
R The tires ma ywe arexc essiv elyand/or unevenly, whic hma ygr eatl yim pair tiretract ion.
R The drivin gch aract eristic s,as wellas steer ing and braking, maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ure. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir epr essur e(/ page396) andthetir es.
0077 Please Correct TirePres-
sure *T
hetirepr essur eis toolow in at leas tone ofthetir es, orthedif fere nce intirepr ess urebe twee nth eindividual
wheels istoogr eat. #
Chec kth etir epr essur eand add air,if neces sary. #
When thetir epr essur eis cor rect, restar tth etir epr essur emonit or(/ page40 1). Displa
ymessag esand warning/ indic ator lam ps 47
7

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
0077 Warning TireMalfunct ion *T
hetirepr essur ein one ormor etir es has dropped suddenly .The wheel position isdispla yed. &
WARNIN GRisk ofan acci dent from drivi ng with aflat tire
Flat tires aredang erous inthefo llo wing ways:
R The tires can overheat and cause afire .
R The driving charact eristic s,as wellas steer ing and braking, maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Donotdr ive wit haflat tire. #
Obse rveth eno teson flat tires. No
teson flat tires (/ page37 4). #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir es.
Tires Overheat ed *A
tle as tone tireisov erheating. Theaffect ed tires aredispl ayed inred. At temp eratur esclose tothelimit value, the
tir es aredisp laye din yello w. #
Drive mor eslow ly.
Decre aseSpe ed *A
tle as tone tireisov erheating. Theaffect ed tires aredispl ayed inred. At temp eratur esclose tothelimit value, the
tir es aredisp laye din yello w. 47
8
Display messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions &
WARNIN GRisk ofan acci dent from drivi ng with ove rheat edtires
Ov erheat edtires ma ybur st,par ticular lyat high speeds. #
Reduce speed sothat thetir es cool down. #
Reduce speed sothat thetir es cool down. Smar
tKey Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Á Obtain aNew Key *T
heSmar tKey nee dstobe replaced. #
Visit aqu alif ied spec ialistwo rkshop.
Á Repla ceKey Battery *T
heSmar tKey batt eryis disc harged. #
Replace thebatt ery(/ page67 ). Displa
ymessag esand warning/ indic ator lam ps 47
9

Ti
re s Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0077 Ti re pressur emonit oring
sy stem warning lam plight s
up The
yello wtirepr essur emon itor ing system warning lam p(pr essur eloss/ malfun ction) islit.
*The tirepr essur emon itor ing system has detected tirepr ess urelos sin at leas tone ofthetir es. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
Ti re pressur esthat areto olow pose thefo llo wing hazar ds:
R The tires ma ybur st,especiall yas theload andvehicle speed increase.
R The tires ma ywe arexc essiv elyand/or unevenly, whic hma ygr eatl yim pair tiretract ion.
R The drivin gch aract eristic s,as wellas steer ing and braking, maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ure. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle, paying attention toroad and traffic condi tions. #
Checkth etir epr essur eand thetir es. 500
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0077 Ti re pressur emonit oring
sy stem warning lam p
fl ashes The
yello wtirepr essur emon itor ing system warning lam p(pr essur eloss/ malfun ction) flashes forapp roxima tely one
minut eand then remains lit.
*The tirepr essu remonit oring system isdef ective. &
WARNIN GThe reisarisk ofan accident ifth etir epr essur emonit oring system ismalfunct ioning
If th etir epr essur emonit oring system ismalfunct ioning,itis no table toissue awa rning ifth er eis pressur eloss
in one ormor eof thetir es.
Un der inflated tires ma y,forex am ple, impair thedr iving, steer ing and braking charact eristic s. #
Have thetir epr essur emonit oring system checkedat aqu alif ied spec ialistwo rkshop. #
Visit aqu alif ied spec ialistwo rkshop. Ve
hicl e Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
Ù Wa rning lam pfo relectr ic
po we rst eer ing The
redelect ric po we rst eer ing warning lam pis lit while theengine isrunning .
*Th epo we r-assis tedsteer ing orthesteer ing itself ismalfunct ioning. &
WARNIN GRisk ofacci dent ifsteer ing capability isim pair ed
If th esteer ing does notfunc tion asintended, theve hicle's operating safetyis jeopar dized. Di
spla ymes sagesand warning/ indic ator lam ps 50
1

Cup
holderinthecent erconsole
In stallin g/remo ving(aut omat ic
transm ission).................................. .....1 14
Cus tomer Assist ance Center (CAC ).........2 7
Cus tomer Relat ions Depar tment .............2 7 D
Dam agede tection (parked vehicl e)...... .169
Dashb oard
see Cockpit
Dashb oardlig hting
see Instrument clusterlig hting
Dat aacq uisiti on
Ve hicle ............................................. ..... 28
Data impor t/expor t................................. 271
Fu nctio n/no tes .................................... 271
Im por ting/e xporting ............................ 272
Data storage
Ele ctroni ccontr oluni ts ............ .............28
Online services ...................................... 30
Ve hicle .................................................. 28 Dat
e
Se ttin gth etime anddateaut omati‐
call y................................................ ..... 266
Da ytim eru nning lampmode
see Daytime running lights
Da ytime running lights ........................... 125
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 125
Deact ivat ing theala rm (ATA ).................... 90
Dealer ship
see Qualif iedspec ialistwo rkshop
Dec laration ofconf ormity
Wi reless vehicle component s......... .......2 5
Decor ative fo il(cleaning instructions)
.. .................................................................3 66
De finitions (tiresand loading) ................4 12
Design s
Men u(on -boar dco mp uter) ............ ...... 231
Des tination .............................................. 295
Ed iting intermed iatedes tinatio ns........ 284
Ed iting thepr ev ious destination s.... .... 295
Ex tern al ...............................................2 95
Sa ving (current vehicle position) ......... 295
Sa ving asglobal favo rite <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 295St
or ing amap position ........................ 295
Des tinat ionentr y.................................... 280
Ent ering 3wo rdaddr esse s.................. 285
En tering aPOI oraddress <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 280
Ent ering anintermed iate des tination ..284
En tering geo-coor dinates.................... 285
Select ingacont act............................. 285
Select ingaPOI .................................... 283
Select ingfrom themap ....................... 286
Select ingprev ious destination s...........2 82
De tectin ginat tentiv eness
see ATTENTION ASSIST
Diagnos ticsconnec tion............................2 6
Digita lOp erator' sMa nua l........................ 20
Digita lsp eedo meter ............. ..................234
Di ng hy towing
see Tow- bar system
DIRECT SELECT leve r............. ..................153
Eng aging drive po sitio n............ ........... 155
Eng aging neu tral ............ ...................... 154
Eng aging park position ........................ 154
Eng aging park position automatic ally .. 154
Eng aging reve rsege ar .........................1 54 Inde
x51
1

F
Fa tig ue detection
see ATTENTION ASSIST
Fa vo rite s
Ad ding .................................................2 61
Callin gup ........................................ .....2 61
Del eting .......................................... .....2 61
Mo ving ..................... ............................2 61
Ov ervie w ............................................. 260
Re nam ing<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>261
Fi rs t-aid kit(sof tsi ded) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> ....373
Flacon Inser ting/r emo ving........................ .....1 38
Flat tire ....... .............................................. 374
Chan gingawheel .................................4 19
MOExt ended tires ................................ 374
No tes ................................................... 374
TIREFIT kit...........................................3 75
Flat towing
see Tow- bar system
Floor mats................................................ 120
Fo ilco vering
Ra dar and ultrasonic sensors.............. 170 Fr
ag rance
see Perfume atomiz er
Fr ee sof tware .............................................3 1
Fr eq uencies
Tw o-w ayradio ................................ ...... 427
Fr eq uency band
Dialin g(on -boardcom puter) ................ 237
Fr ont airbag (driver ,fr ont passeng er).....4 0
Fr ont passeng erseat
see Seat
Fu el ...........................................................4 32
Ad ditiv es........................................ .....4 32
E1 0 ....... ............................................... 431
Fu elreser ve <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 432
Ga sol ine <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 431
Qua lity (gas oline )<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 431
Re fuel ing ............................................. 159
Sul fur cont ent <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 431
Ta nk cont ent <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> .............432
Fu elconsum ption
On- boar dcom puter .............................2 34
Fu nction seat
see Door controlpanel Fu
ses ........................................................ 390
Bef orere placing afuse ........................ 390
Dashboar dfuse box............................ 392
Fu se assignment diagram...................3 90
Fu se boxin theengine compartmen t.. 391
Fu se boxin thefront -passen gerfo ot ‐
we ll...................................................... 392
Fu se boxin thetrunk ........................... 392
No tes .................................................. 390
Fu ses
see Fuses G
Gar agedoor opener
Clea ring thememor y........................... 165
Opening orclosing thedoor ................1 65
Pr ogr ammi ngbutt ons .......................... 162
Ra dio equipment approval num bers.... 166
Re sol ving problems ............................. 164
Sync hronizi ngthero lling code .............1 64
Gas station search
St artin gaut omat icsear ch<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 283
Swi tching automatic searchon/of f..... 289
Using automatic search<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 28951
8
Inde x

Insp
ectio n
see ASSYST PLUS
Ins trument cluster
see Instrument Display
Ins trument clusterlighti ng............ ........233
In stru men tDi spl ay <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 228
Ad jus ting thelighting ..................... ..... 233
Fu nctio n/no tes ................................... 228
Ins trument cluster ...... ........................... 10
Se tting theadditional value rang e ....... 231
Wa rning/ indic ator lam ps................ .....4 87
Int ellig entLight System
Ad aptiveHig hbeam Assis t...................1 24
Cor nering light func tion<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 124
Int erior ligh ting........ ................................ 126
Ambi entlighti ng<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> ..............126
Re adin glight ........................................ 126
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 126
Swi tch-of fdel aytim e........... ................127
Int erior motion sensor
Ac tivati ng/d eactiv ating ........... ..............92
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 91Int
ermed iatedes tination
Calculat ingaro utewit hint ermed iate
des tinatio ns........................................ 284
En tering <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>284
Mod ifying <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011>284
St artin gan aut omat icga sst atio n
sear ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 283
St artin gth eaut omatic service sta‐
tio nsear ch<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 290
In te rn et
Callin gup awe bpag e.........................3 30
Cl osing thebr ows er........................ ..... 331
Dele tingabookmar k........................ ... 331
Dele tingbrows erdat a..................... ....3 31
Managing bookmarks<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 331
In te rn et connect ion
Comm unicationmodul efun ction .... .... 328
Con nectionstatus .......................... .....3 29
Displ aying thecon nect ionstatus .... .... 329
Es tablishing .................................... .....3 28
Inf ormatio n....... ................................... 327
Re strictions <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> .............327
Io niza tion
Ac tivati ng/d eactiv ating (mu ltimed ia
sy stem) .......................................... ...... 138 iPhone
®
see Apple CarPla y®
see Mercedes- BenzLink J
Jac k
St or ag elocation ................................... 418
Jum p-startconne ction ............................3 83
Gene ralno tes ...................................... 381 K
KEY LESS-GO
Loc king theve hicle ................................ 70
Pr oblem .................................................7 2
Un loc kin gse tting .................................. 66
Un loc kin gth eve hicle ............................7 0
Kic kdow n.................................................1 56
Using ...................................................156
Knee airbag ................................................ 40 L
Label ing(tires)
see Tire labeling 520
Index