rest MERCEDES-BENZ C CLASS 2021 Owners Manual

Publication
details
Int erne t
Fu rther information aboutMercedes-Ben zve hi‐
cles andabout Mercedes‑Ben zAG can befound
on thefo llo wing websit es:
htt ps:/ /www .mbusa. com(USAonl y)
htt ps:/ /www .mercedes- benz.ca(Canada only)
Documentation team
© Mer cedes ‑Benz AG:No tto be repr int ed, trans‐
lat ed orother wise repr oduced, inwhole orin
par t,wit hout written per mission from
Mer cedes‑ BenzAG .
Ve hicl emanuf acturer
Mer cedes‑Benz AG
Mer cedess traße 120
703 72Stutt gart
Ger man y Fr
ont passeng erair bag warning Airb
agwarning sticke rfo rUS Aand Canada &
WARNIN GRisk ofinju ryor deat hif th e
co-dr iver airba gis ena bled
If th eco- driver airbag isenabled, ach ild on
th eco- driver seat maybe stru ck bytheco-
dr iver airbag during anacciden t.
NEVE Ruse are ar wa rd-faci ng child restra int
sy stem onaseat withan ENABL EDFRONT
AIRB AG;DE ATHor SERIOU SINJU RYtothe
CH ILD can occur . Obser
vethech ap ter"C hild renin theve hicle".
Asat17.06.20

1
L Distance warning →
435
2 00CC Powe rst eer ing →
428
3 003E003D Turn signal lights →
115
4 00B9 CheckEn gin e →
429
5 Electric pa rking brak e(red) →
432
0049 USAonl y
0024 Canada only
6 Brak es(red) →
432
0027 USAonl y
004D Canada only
7 ÿ Coolant temp eratur e →
429
8 Coolant temp eratur edispla y →
207
9 00C6 Recup erati ve Brak eSy stem, USAonl y →
432
004D Brak es (yello w), Canada only →
432 A
0024 Electric pa rking brak e(yello w) →
432
B 0025 ABS →
436
C 0075 Restra int system →
427
D 00E9 Seatbelt →
427
E 0057 Highbeam →
115
F 0058 Lowbeam →
114
G 00B6 Reser vefuel withfuel filler flap locatio n
ind icat or →
429
H Fuelleve l →
207
I 0060 Parking lam ps →
114
J 005E Rear foglam p →
115
K 0077 Tire pressur emonit oring system →
438
L 00BB ESP®
OFF →
436
M 00E5 ESP®
→
436 At
aglanc e– Indicat orand warning lam ps(sta nda rd) 11

1
003E003D Turn signal lights →
115
2 005E Rear foglam p →
115
3 0057 Highbeam →
115
0058 Lowbeam →
114
0060 Parking lam ps →
114
4 ÿ Coolan tte mp eratur e →
429
5 Coolant temp eratur edispla y →
207
6 L Distance warning →
435
7 00E9 Seatbelt →
427
8 0077 Tire pressur emonit oring system →
438
9 Ù Powe rst eer ing →
428
A 0024 Electric pa rking brak e(yello w) →
432
B Elec tric par kingbr ak e(red) →
432
0049 USAonl y
0024 Canada only C
0075 Restra int system →
427
D Brak es (red) →
432
0027 USAonl y
004D Canada only
E 00B6 Reser vefuel withfuel filler flap locatio n
ind icat or →
429
F Fuelleve l →
207
G 00C6 Recup erati ve Brak eSy stem, USAonl y →
432
004D Brak es (yello w), Canada only →
432
H ä Suspension →
435
I 003D Electrical mal functi on →
429
J 00B9 CheckEngine →
429
K 0025 ABS →
436
L 00BB ESP®
OFF →
436
00E5 ESP®
→
436 At
aglanc e– Indicat orand warning lam ps(Widesc reen Coc kpit) 13

1
Oper ates thememor yfunc tion →
101
2 Adjus tstheseats electrically →
93
3 Switc hestheseat heating on/off →
96
4 Switc hestheseat ventil ation on/o ff →
97
5 Oper ates theoutside mirrors →
122
6 Opens/closes thetrunk lid →
71
7 Opens/closes theright side windo w →
76
8 Opens/closes thelef tside windo w →
76
9 Opens/closes there ar right side windo w →
76
A Opens/closes there ar leftside window →
76 B
Child safetyloc kfo rth ere ar side windows →
63
C Opens thedoor →
68
D Locks/unl ocks theve hicle →
68
E Adjus tsthe4-w aylumbar support →
93
F Setstheseat fore -and -aftpos ition →
90
G Seatad jus tment using themultimedia system →
95
H Adjus tsthehead restra int s →
93
I Adjus tstheseat height →
90
J Adjus tstheseat backres tinclin ation →
90 At
aglanc e– Do orcon trol pane land seat adjus tment 17

Re
stra int system Pr
otection prov ided bythere stra int system The
restra int system includes thefo llo wing com‐
pone nts:
R Seat beltsystem
R Airbags
R Child restra int system
R Child seatsecur ingsystems
The restra int system can help preve nttheve hi‐
cle occupants from coming intocont actwith
par tsof theve hicle interior intheev ent ofan
acciden t.In theev ent ofan acciden t,th e
re stra int system can also reduce thefo rc es to
whic hth eve hicle occupants aresubject ed.
A seat beltcanonlypr ov ide thebes tle ve lof pro‐
te ction ifit is wo rncor rectl y.Dep endingonthe
de tected acci dent situation, Emerg encyTensi on‐
ing Device sand /or airba gssupp lement thepr o‐
te ction offere dby acor rectl ywo rnseat belt.
Emer gency Tensi oni ng Device sand /or airba gs
ar eno tde ploy ed ineve ryacc iden t. In
order forth ere stra int system toprov ide the
int ended leve lof protect ion, eachve hicle occu‐
pant mustobser vethefo llo wing informatio n:
R Fasten seat belts correctl y.
R Sitinan almos tup right seat position with
th eir bac kag ains tth eseat backres t.
R Sitwithth eir feet resting onthefloor ,if pos‐
sible.
R Alw ayssecur eper sons under 5ft (1.50 m)
ta llin an addition alrestra int system suitable
fo rMer cedes-Benz vehicles.
Ho wever,no system available toda ycan com‐
ple tely elim inat einj uries and fata lities ineve ry
acc iden tsit uatio n.Inpar ticular ,th eseat belt
and airbag gener ally do notpr otect agains t
objec tspene trating theve hicle from theoutside.
It is also notpossible tocom plet elyru le out the
ri sk ofinjur ycaused bytheairbag deploying. Re
duce dre stra int system protection &
WARNIN GRisk ofinju ryor deat hdue to
modif icationstothere stra int system
Ve hicle occupants mayno long erbe protec‐
te das intended ifalt erations aremade tothe
re stra int system. #
Neveralt er thepar tsof there stra int
sy stem. #
Neverta mp erwit hth ewir ing orany
electr oniccomponen tpar tsor their
sof tware. If
it is neces saryto modify theve hicle toacc om‐
modat eaper son withdisabil ities, con tact an
au thor ized Mercedes-B enzCent erforde tails.
US Aonl y:forde tails, con tact ourCu stomer
Assis tance Center on 1-800-F OR-MER Cedes
(1‑80 0‑367‑63 72). Re
stra int system functiona lity When
theignition isswitc hedon,aself-t estis
per form ed, during whic hth e0075 restra int sys‐ Occ
upant safety 35

te
m wa rning lam plight sup. Itgoes outnolater
th an afe w sec ond saf te rth eve hicle isstar ted.
The com ponen tsof there stra int system areth en
func tional. Malfu
nctioning restra int system A
malfun ction has occurredin there stra int sys‐
te m if:
R The 0075 restra int system warning lam p
does notlight upwhen theignition is
switc hedon
R The 0075 restra int system warning lam p
light sup con tinuousl yor repeat edly during a
jour ney &
WARNIN GRisk ofinju rydue tomalfu nc‐
tions inthere stra int system
Com ponen tsinthere stra int system maybe
activ ated unint entionall yor notdeplo yas
planned inan acciden t. #
Have there stra int system checkedand
re pair edimmediat elyat aqu alif ied spe‐
cialis two rkshop. Fu
nction ofthere stra int system inan acci‐
dent Ho
wthere stra int system worksis de term ined by
th ese verity of theim pact detected and thetype
of acciden tantic ipated:
R Front alim pact
R Rear impact
R Sideim pact
R Rollover
The activ ation thre sholds forth ecom ponen tsof
th ere stra int system arede term ined based on
th eev aluatio nof thesensor values measur edat
va rious points intheve hicle. Thisprocess ispre-
em ptive in nat ure. The trigg ering/ deplo yment of
th ecom ponen tsof there stra int system mus t
ta ke place ingood timeatthest ar tof thecolli‐
sion.
Fa ctor swhi chcan only besee nand measured
af te ra colli sion hasoccur reddo notpla ya deci‐
siv ero le in thedeplo yment ofan airbag. Nordo
th ey prov ide anindic ation ofairbag deployment .
The vehicle maybe def ormed signif icantl ywit h‐
out anairbag beingdeployed. This isthecase if onl
ypar tswhic har ere lativ elyeasil ydef ormed
ar eaf fect ed and thera te ofvehicle deceler ation
is no thigh. Conversely ,an airbag maybe
deplo yedev en though theve hicle suffers onl y
minor deformation. Ifve ry rigid vehicle parts
suc has longitudinal membersar ehit, this ma y
re sult insuf ficie ntly highleve ls of vehicle decel‐
er ation.
Depending onthede tected dep loyme ntsitu a‐
tion, thecom ponen tsof there stra int system can
be activ ated ordeplo yedindepen dentlyof eac h
ot her :
R Front Emer gency Tensi oni ng Device :fr ont al
im pa ct, rear impact ,side impact ,ro llo ver
R Rear Em erge ncy Tensi oni ng Device :fr ont al
im pa ct, rear impact ,ro llo ver
R Driver' sai rba g,front passe nger airba g:fron‐
ta lim pact
R Knee airbag: frontal impact
R Side airbag: sideimpact
R Windo wcur tain airbag: sideimpact ,ro llo ver,
fr ont alim pact 36
Occupa ntsaf ety

In
order forth ecor rectly wornseat belttopro‐
vide theint ended leve lof protect ion, eachve hi‐
cle occupant mustobser vethefo llo wing infor‐
matio n:
R The seat beltmustno tbe twis tedand must
fi t tig htly and snuglyacr oss thebody .
R The seat beltmustbe routed acr oss thecen‐
te rof theshoulder andaslow do wn across
th ehips aspossible.
R The shoulder sectionoftheseat beltshould
no tto uc hyo ur neck nor berouted und er
yo ur arm or behin dyo ur bac k.
R Avoid wearing bulk yclo thing, e.g. awint er
coat .
R Push thelap belt down asfaras possi ble
acr oss your hips andpulltight wit hth eshoul‐
der sect ionofthebelt. Neverro uteth elap
belt across your abdom en.
Pr egn ant women mustals ota ke par ticular
car ewit hth is.
R Neverro uteth eseat beltacross shar p,poin‐
te d, abr asiv eor fragile objec ts. R
Onlyone person should useeachseat beltat
an yone time. Neverall ow babies andchil‐
dr en totrave lsitt ing onthelap ofano ther
ve hicle occupant.
R Neversecur eobjects withaseat beltifth e
seat beltisalso being usedbyone ofthe
ve hicle's occupants. Alwaysobser vethe
ins truct ions forloa ding theve hicle when
secur ingobject s,lugg ageor loads
(/ page10 2).
Als oensu rethat no obj ect s,e.g .a cus hion ,
ar eev er placed between aper son and the
seat.
The seat belts onthefo llo wing seats areeq uip‐
ped withaspec ialseat beltretract or:
R Front passeng erseat
R Rear seat s
Ac tivateor deacti vate thespecial seatbelt
re tract or(/ page 54).
If ch ildr enaretrav eling intheve hicle, besur eto
obser vetheins truction sand safetyno teson
"Chi ldren intheve hicle" (/page51 ). Limitat
ionsofthepr otection prov ided bythe
seat belt &
WARNIN GRisk ofinju ryor deat hdue to
an incorrect sea tpos ition
The seatbel tdoe sno tof ferth eint ended
le ve lof protect ion ifyo uha ve notmo vedth e
seat backres tto an almos tve rtical posit ion.
In par ticular ,yo uco uld slip beneathth eseat‐
belt andbecome injured. #
Adjus tth eseat proper lybef orebegin‐
ning your jour ne y. #
Alw aysensur eth at theseat backres tis
in an almos tve rtical posit ionand that
th eshoulder beltisrouted acr oss the
cent erofyour sho ulder . &
WARNIN GRisk ofinju ryor deat hwhen
additional restra int systems areno tused
fo rper sons withasmal lerstatur e
Pe rsons under 5ft (1.50 m)ta llcan notwe ar
th eseat beltcorrectly without asuit able
additional restra int system. 38
Occupant safety

#
Alw ayssecur eper sons under 5ft
(1 .50 m)tallin asuit able restra int sys‐
te m. &
WARNIN GRisk ofinju ryor deat hdue to
damag edormodif iedseat belts
Seat belts cannotprov ide protect ion inthe
fo llo wing situat ions:
R The seat beltisdamag ed,has been modi‐
fi ed, isex treme lydirty, bleac hedordyed
R The seat beltbuckleisdamag edor
ex treme lydir ty
R Modif ication sha ve been made tothe
Emerg encyTensi oni ng Device ,sea tbe lt
anc horageor sea tbe ltre tract or
Sea tbe lts ma ysu stain non-visi ble damag ein
an acc iden t,e.g .due toglass splin ters.
Modif iedordamag edseat belts could tear or
fa ilin theev ent ofan acciden t,forex am ple.
Modif iedEmerge ncy Tensi oni ng Device s
cou ldacci dentally trig ge ror failto function
as intended . #
Nevermodify theseat beltsystem, for
ex am ple theseat belt, seatbeltbuckle,
Emer gency Tensi oni ng Device ,sea tbe lt
anc horageand seatbe ltre tract or. #
Makesur eth at theseat belts are
undamag ed,notwo rnand clean. #
Alw aysha ve theseat belts checked
immed iatelyaf te ran accide ntata
qu alif ied spec ialistwo rkshop. Onl
yuse seat belts whichha ve been approved
fo ryo ur vehicle byMer cedes-Ben z. &
WARNIN GRisk ofinju ryor deat hfrom
deplo yedpy rotech nic Emerg encyTen‐
si oni ng Device s
Py rotech nic Emerg encyTensi oni ng Device s
th at have been deployedar eno long eroper a‐
tion aland areunable toper form their inten‐
ded protect ive func tion. #
Ther efor e, have deplo yedpy rotech nic
Emerg encyTensi oni ng Device simm edi‐
at ely replaced ataqu alif ied spec ialist
wo rkshop. Mer
cedes-Benz recomme ndsthat youha ve the
ve hicle towe dto aqu alif ied spec ialistwo rkshop
af te ran accide nt.
* NO
TEDama gecau sed bytrap ping the
seat belt If
an unused seatbeltisno tfully retract ed,it
ma ybe come trap pe din thedoor orinthe
seat mechanism. #
Alw aysensur eth at an unus edseat belt
is full yre tract ed. Re
leasing there ar passen gerco mp artment
ce nter seat belt If
th elef t-hand rear seat backres tis folded down
and backup again, itma yno tbe possible topull
out there ar passe nger com partment centerseat
belt. Theseat beltmustbe released. #
Pull theseat beltoutappr oximat ely1 in
(25 mm) attheseat beltoutle ton theseat
bac kres tand then release itag ain.
The seat beltisretract edand released. Occ
upant safety 39

Pot
entialprotect ion prov ided byeac hairbag:
R Knee airbag: thigh, knee and lowe rleg
R Driver's airbag,front pass engerairb ag:head
and ribcag e
R Windo wcur tain airbag: head
R Side airbag: ribcag e,also pelvis forfr ont seat
occupa nts
* NO
TEMer cedes-AMG vehicles #
Obser vetheno tesin theSupplement .
Yo uco uld other wise failto recogni ze
da ngers. &
WARNIN GRisk ofinju ryor deat hif th e
co-dr iver airba gis ena bled
If th eco- driver airbag isenabled, ach ild on
th eco- driver seat maybe stru ck bytheco-
dr iver airbag during anacciden t.
NEVE Ruse are ar wa rd-faci ng child restra int
sy stem onaseat withan ENABL EDFRONT
AIRB AG;DE ATHor SERIOU SINJU RYtothe
CH ILD can occur . When
installing ach ild restra int system onthe
fr ont passeng ersea t,obse rveth eve hicle-spe‐
cif icinf ormation (/page60). Also, always
obser vetheno teson rear wa rd-faci ng or
fo rw ard-f acin gch ild restra int systems onthe
fr ont passeng ersea t.
Inf ormation onaut omatic front passen ger
airbag shutoff
The front passeng erairbag canonly bedep loye d
in an acc ident ifth ePA SSENGER AIRBAGOF F
ind icat orlam pis off.Ifth efront passeng erseat
is occupied, makesur e,bo th bef oreand during
th ejour ney,that thest atus ofthefront
passeng erairbag iscor rect (/ page 46).
* NO
TEImpo rtant poin tsto remember if
th efront passeng erseat isunocc upied In
an acciden t,th ecom ponen tsof the
re stra int system maydeplo yunnec essarily
on thefront passeng erside if:
R Ther ear ehea vyobjec tson thefront
passeng erseat. R
The seat belttongu eis eng aged inthe
seat beltbuckleofthefront passeng er
seat andthefront passeng erseat is
unocc upied. #
Stow object sin asuit able place. #
Onlyone person should useeachseat
belt atanyone time. Depending
onthede tected acci dent situation,
th ewindo wcur tain airbag onthefront
passeng erside maydeplo y.The airbag is
deplo yedre ga rdless ofwhe ther thefront
passeng erseat isoccupied. Pr
otectiv ecap acit yof theair bags Dep
endingontheacciden tsituation ,an airbag
ma ysupplement thepr otect ion offere dby acor ‐
re ctly fastened seatbelt. 42
Occupant safety

&
WARNIN GRisk ofinju ryor deat hdue to
an incorrect sea tpos ition
If yo ude viat efrom thecor rect sea tpos ition,
th eairbag cannotper form itsintended pro‐
te ctiv efuncti on.
Eac hve hicle occupant mustmak esur eof the
fo llo wing:
R Fasten seat belts correctl y.Pregnant
wo men mustta ke par ticular careto
ensur eth at thelap belt neverlie sacr oss
th eabdomen.
R Adoptth ecor rect sea tpos ition and keep
as faraw ay as poss iblefrom theairbags.
R Obser vethefo llo wing informatio n. #
Alw aysmak esur eth at ther ear eno
objec tsbetween theairbag andvehicle
occupant. To
avo idtherisk sre sulting from thedeplo yment
of an airbag, eachve hicle occupant must
obser vethefo llo wing informatio nin par ticular :
R Beforest ar tin gyo ur jour ne y,adjus tyo ur seat
co rrect ly;th edr iver's seat andfront passeng
erseat should bemo vedas farbac k
as possi ble.
When doingso,alwaysobser vetheinf orma‐
tion onthecor rect driver's seatpos ition
(/ page 89).
R Only holdthesteer ing wheel bythesteer ing
wheel rim. This allows theairbag tobe fully
deplo yed.
R Alw ayslean agains tth eseat backres twhen
th eve hicle isin mo tion. Donotlean forw ards
or agains tth edoor orside windo w.Youma y
ot her wise beinthedeplo yment area ofthe
airbag s.
R The occupant smus talw ayske ep their feet
on thefloor .Do notput your feet on the
coc kpit, forex am ple. Your feet ma yot her‐
wise beinthedeplo yment area oftheairbag.
R Ifch ildr enaretra veling intheve hicle,
obser vetheadditional notes(/ page51 ).
R Alw aysst or eand secur eobject scor rectl y. Objects
intheve hicle interior maypr eve ntan
ai rba gfrom func tioning correctly .Eac hve hicle
occupant mustalw aysmak esur eof thefo llo w‐
ing inpar ticular :
R Ther ear eno people, animals orobje cts
be tween theve hicle occupants andanair‐
bag.
R Ther ear eno object sbe tween theseat, door
and door pillar (B-pillar).
R Ther ear eno har dobjec ts,e.g. coat hangers,
hanging onthegr ab handles orcoat hooks.
R Ther ear eno accessor ypar ts,suc has mobile
na vig ation devices, mobile phones orcup
holder s,wit hin thedeplo yment area ofan air‐
bag, e.g.onthecoc kpit, onthedoor ,on the
side windo wor on theside trim.
In addition, nocon nect ingcables, tensi oni ng
st ra ps orretainin gst ra ps mus tbe routed or
att ached totheve hicle within thedeplo y‐
ment area ofan airbag. Alwayscom plywith
th eaccessor ymanuf acturer'sinstallation
ins truct ions and, inpar ticular ,th eno teson
suit able places forins tallation . Occ
upant safety 43