ignition MERCEDES-BENZ C-CLASS COUPE 2021 Owner's Manual

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 Emer gency Tensi oni ng Device :fr ont al
im pa ct, rear impact ,side impact ,ro llo ver
R Driver' sai rba g,front passe nger airba g:fron‐
ta lim pact
R Knee airbag: front alim pact
R Side airbag: sideimpact
R Windo wcur tain airbag: sideimpact ,ro llo ver,
fr ont alim pact
The front passeng erairb agcan onlybe depl oyed
in an acciden tif th ePA SSENGER AIRBAGOF F
ind icat orlam pis off.Ifth efront passeng erseat 36
Occupant safety

*
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. Ex
tending/r etra ctin gth eseat beltextender When
thedoor isclosed, theseat beltextende r
ex tends.
Yo ucan also extend theseat-belt extende rby
usin gth eõ seat-belt extende rbu tton inthe
cent erconso le.
The õ seatbel tex tende rbu tton mayal so be
lo cat edintheswitc hpanel abovethelight
switc hin Mer cedes- AMGvehicles. #
Switc hon theignition . #
Press theõ seatbeltextende rbu tton.
The seatbe ltex tende rex tends. The
seatbe ltex tende rre tracts again in thefo l‐
lo wing cases :
R The seat belttongu eis eng aged intheseat
belt buckle
R The seat belttongu eis no teng aged inthe
seat beltbucklewithin 60seconds
If yo upr ess theõ seatbeltextende rbu t‐
to nag ain in this case, theseat beltextende r
wi llex tend again.
R The respectiv edoor isopened
R Youfo ld theseat backres tfo rw ards
R Nobody issitt ing inthefront passeng erseat
If yo upr ess theõ seatbeltextende rbu t‐
to nag ain in this case, theseat beltextende r
wi llno long er extend.
The seatbe ltex tende rmu stalw aysbe retract ed
wh ile th eve hicle isin mo tion. Fa
stening seatbelts If
th eseat beltispulled quickl yor shar ply, the
seat beltretract orlock s. The seat beltstra pcan‐
no tbe pulled outanyfur ther. #
Alw ayseng ageseat belttongu e2 ofthe
seat beltintoseat beltbuckle1 ofthecor‐
re sponding seat.
Ve hicl eswith automatic front passen gerair‐
bag shutoff: 40
Occupant safety

Fu
nction ofthePA SSEN GERAIRBAGindic a‐
to rlam ps Se
lf-te st of aut oma ticfront passeng erair bag
shu toff
When theignition isswitc hedon,aself-t estis
per form ed dur ing whic hth etw oPA SSENGER
AIR BAGON and OFFind icat orlam pslight up
simul taneou sly. The
status ofthefront passeng erairbag isdis‐
pla yedvia thePA SSENGER AIRBAGind icat or
lam psafte rth eself-t est:
R ON islit:th efront passeng erairbag may
deplo ydur ing anacciden t.
The indicat orlam pgoes outafte rapp rox‐
ima tely 60 seco nd s.
R ON andOF Far eno tlit :th efront passeng er
airbag maydeplo ydur ing anacciden t.
R OFF islit:th efront passeng erairbag isdisa‐
bled. Itwill then notbe deplo yedin theev ent
of an acciden t.
If th ePA SSENGER AIRBAGON indicat orlam pis
of f,on lythePA SSENGER AIRBAGOF Find icat or
lam psho wsthest atus ofthefront passeng er
airbag. ThePASSENGER AIRBAGOF Find icat or
lam pma ybe litcon tinuousl yor be off.
If th ePA SSENGER AIRBAGOF Find icat orlam p
and the0075 restra int system warning lam p
light upsimult aneousl y,thefront passeng erseat
ma yno tbe used. Alsointhis case, donotins tall
a ch ild restra int system onthefront passeng er
seat. Have theaut omatic front passeng erairbag shut
offch eckedand repair edimmediat elyat a
qu alif ied spec ialistwo rkshop.
St atus displa y
If th efront passeng erseat isoccupied, ensure,
bo th bef oreand during thejour ney,that thest a‐
tus ofthefront passeng erairbag iscor rect for
th ecur rent situa tion.
Af terin st alli ng are ar wa rd-faci ng child
re stra int system onthefront passeng er
seat :PA SSENGER AIRBAGOF Fmus tbe litcon ‐
tin uousl y. &
WARNIN GRisk ofinju ryor deat hwhen
using are ar wa rd-faci ng child restra int
sy stem while thefront passeng erairbag
is enabled
If yo usec ureach ild inare ar wa rd-faci ng
ch ild restra int system onthefront passeng er
seat andthePA SSENGER AIRBAGOF Find i‐
cat orlam pis off,th efront passeng erairbag
can deplo yin theeve ntofan acci dent.
The child could bestru ck bytheairbag. Occ
upant safety 47

#
Ifsomeone istrappe d,release thebut‐
to nimm ediate ly or pullit in order to
clos eth eside windo wag ain. &
WARNIN GRisk ofbeco ming trap ped
whe nclos ingasid ewi ndo w
Whe nclos ingasid ewi ndo w,body parts
could betrapped intheclosing area inthe
pr ocess. #
When closing,mak esur eth at no body
par tsarein theclosing area. #
Ifsomeon eis tra pped, release thebut‐
to nimm ediate ly or pres sth ebutt onin
or der toreopen theside windo w. &
WARNIN GRisk ofbeco ming trap ped
whe nch ildr enopera tetheside windo ws
Childr encould become trapped ifth ey oper‐
at eth eside windo ws,par ticular lywhen unat‐
te nde d. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. Re
quirement s:
R The powe rsupp lyor theignition isswitc hed
on. 1
Toclos e
2 Toopen
The buttons onthedr iver's door take prece‐
denc e. #
Tostar taut omatic operation :pr ess the
0062 buttonbeyond thepoint ofresis tance
or pulland release it. 76
Opening andclosing

#
Use automatic operation tofully open and
th en close thesliding sunroof. Anti-t
heftpr otection Fu
nction oftheimm obiliz er The
immo bilizerpreve nts your vehicle from being
st ar tedwit hout thecor rect Smar tKey .
The immobilizer isaut omaticall yactiv ated when
th eignition isswitc hedoffand deactiv ated when
th eignition isswitc hedon.
When leaving theve hicle, alwaysta ke theSmar t‐
Ke ywit hyo uand lockth eve hicle. Anyone can
st ar tth eengine ifava lid Smar tKey has been left
inside theve hicle.
% Intheeve nttheengine cannotbe star ted
(y et theve hicle ’sbatt eryis ch arge d), the
sy stem isno toper ational. Contactan
aut hor ized Mercedes- BenzCenteror call
1-8 00- FOR-MER Cedes (intheUS A)or
1-8 00- 387-0 100(in Canada). ATA
(anti-thef tala rm system) Fu
nction oftheATA system
If th eATA system isarmed, avisual andaudible
alar mistrigg ered inthefo llo wing situat ions:
R When adoor isopen ed
R When thetrunk lidisopened
R When thehood isopened
R When theint erior motion sensor istrigg ered
(/ page84 )
R When theto w- aw ay alar mistrigg ered
(/ page84 )
The ATAsy stem isarmed automaticall yaf te r
appr oximat elyte nseco ndsinthefo llo wing situa‐
tion s:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO Indicat
orlam p1 flashes whentheAT Asy stem
is armed.
The ATAsy stem isdeactiv ated aut omatic allyin
th efo llo wing situat ions:
R Afterunloc kingtheve hicle withth eSmar t‐
Ke y
R Afterunloc kingtheve hicle using KEYLES S-
GO Opening
andclosing 83

Seats
Ad
jus tingthe fron tse at mec hanicall yand
el ec tric all y(w ithou tSe at Co mf ortPa ckag e) &
WARNIN GRisk ofbeco ming trap ped if
th eseats areadjus tedby childr en
Childr encould becom etrapped ifth ey adjus t
th eseats, particular lywhen unattended. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. Yo
ucan adjustth eseats when theignition is
switc hedoff. &
WARNIN GRisk ofbeco ming trap ped
whe nad jus ting theseat
When youadj usta seat ,yo uor other vehicle
occupants couldbecome trapped, e.g.onthe
seat guide rail. #
When adjustingaseat, makesur eth at
no onehas anypar tof their body within
th esw eep oftheseat. Obser
vethesaf etyno teson "Airbags" and"Chil‐
dr en intheve hicle". &
WARNIN GRisk ofacci dent dueto the
dr iver's seat notbeing engaged
The driver's seat maymo veune xpectedl y
while drivin g.
This could caus eyo uto lose control of the
ve hicle. #
Alw aysmak esur eth at thedr iver's seat
is eng aged bef orest ar tin gth eve hicle. &
WARNIN GRisk ofacci dent dueto
adjus tingth eve hicle settin gswhile the
ve hicle isin mo tion
Yo uco uld lose contro lof theve hicle inthe
fo llo wing situat ionsinpar ticular :
R Ifyo uadj ustth edr iver's seat, thehead
re stra int ,th esteer ing wheel orthemir ror
while theve hicle isin mo tion
R Ifyo ufa sten your seat beltwhile theve hi‐
cle isin mo tion #
Beforest ar tin gth eengine: Inpar ticular ,
adjus tth edr iver's seat, head restra int ,
st eer ing wheel andmirror,and fasten
yo ur seat belt. &
WARNIN GRisk ofbeco ming trap ped if
th eseat height isadjus tedcar elessl y
If yo uadj ustth eseat height carelessly ,yo u
or other vehicle occupants couldbetrapped
and ther eb yinjur ed. Seats
andstow ing 87

Switc
hingthest eer ing wheel heatingon/of f Re
quirement s:
R The ignit ionisswitc hedon. #
Turn theleve rin thedir ect ion ofarrow 1or
2.
If indicat orlam p3 lights up,thesteer ing
wheel heating isswitc hedon. When
youswit chtheignition off,th esteer ing
wheel heating switchesoff. Easy
entryand exitfeatur e Usi
ngtheeasy entryand exitfeatur e &
WARNIN GRisk ofacci dent whenpu lling
aw ay dur ing theadjus tmentpr ocess for
th eeasy exitfeatur e
Yo uco uld lose contro lof theve hicle. #
Alw ayswa itunt ilth eadjus tmentpr oc‐
ess iscom pletebef orepulling away. &
WARNIN GRisk ofbeco ming trap ped
du ring adjus tment oftheeasy entryand
ex itfeatur e
Yo uand other vehicle occupants –par ticu‐
lar lych ildr en–could becom etrapped. #
Ensur eth at no onehas abody partin
th esw eep ofthesteer ing wheel ordriv‐
er's seat. If
th er eis arisk ofbecoming trapped bythe
st eer ing wheel: #
Movetheadjus tmentle ve rof thesteer‐
ing wheel.
The adjus tmentpr ocess willbestop‐
ped.
If th er eis arisk ofbecoming trapped bythe
dr iver's seat: #
Press theseat adjus tmentswitc h.
The adjus tmentpr ocess willbestop‐
ped. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. Yo
ucan stop theadjus tmentpr ocess bypress‐
ing one ofthememor yfunc tion position
switc hes. Seats
andstow ing 97

&
WARNIN GRisk ofbeco ming trap ped if
ch ildr enact ivat eth eeasy entryand exit
fe atur e‑
Childr encoul dbec ome trapped ifth ey act i‐
va te theeasy entry‑and exitfeatur e,par ticu‐
lar lywhen unattende d. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. If
th eeasy entryand exitfeatur eis act ive, the
st eer ing wheel willmoveupw ards and thedr iv‐
er's seat willmovebac kin thefo llo wing situa‐
tion s:
R Youswit chtheignition offwit hth edr iver's
door open
R Youopen thedr iver's door withth eignition
switc hedoff
% The steer ing wheel willthen mo veupw ards
on lyifit is no talr eady ashigh asitwill go.
The driver' sseat willthen mo vebac kwards onl
yif it is no talr eady atthere ar oftheseat
adjus tmentra ng e.
The steer ing wheel andthedr iver's seat will
mo vebac kto thelas tdr ive position inthefo l‐
lo wing cases :
R Youswit chthepo we rsupp lyor theignition
on when thedr iver's door isclosed
R Youclo sethedr iver's door withth eignition
switc hedon
The lastdr ive position willbesave dwhen:
R Youswit chtheignition off.
R yousa ve theseat settings viathememor y
func tion.
If yo upr ess oneof thememor yfunc tion memor y
position switches,theadjus tmentpr ocess will
be stopped. Se
tting theeasy entryand exitfeatur e Mul
timedi asy stem:
4 Vehicle 5
î Vehicle Setting s
5 Easy Entry/E xit #
Select Steering Wheel&Seat, Steering
Wheel OnlyorOff. Memor
yfunction Fu
nction ofthemem oryfun ction &
WARNIN GRisk ofan acci dent ifth e
memor yfunction isused whiledr iving
If yo uuse thememor yfunc tion onthedr iv‐
er's side while driving, youco uld lose contro l
of theve hicle asare sult oftheadjus tments
being made. #
Onlyuse thememor yfunc tion onthe
dr iver's side when theve hicle isstatio n‐
ar y. 98
Seats andstow ing

The
exterior lighting (exc ep tst andi ngand park‐
ing lam ps) will swit choffaut omaticall ywhen the
dr iver's door isopened.
R Obser vetheno teson sur round lighting
(/ page11 6).
Au tomatic drivin glights function
The parking lam ps,low beam anddaytime run‐
ning lamp sar eswitc hedonaut omaticall y
depending ontheignition status andtheambi‐
ent light. &
WARNIN GRisk ofacci dent whenth elow
beam isswitc hedoffin poor visibility
When thelight switc his setto 0058 ,th elow
beam mayno tbe switc hedonaut omaticall y
if th er eis fog, sno wor other causes ofpoor
visibili tysuc has spr ay. #
Insuc hcases, turnth elight switc hto
0058 . The
automatic driving lights areonl yan aid. You
ar ere sponsible forve hicle lighting. Switc
hingthere ar foglights onoroff
Re quirement s:
R The light switc his in the0058 or0058 posi‐
tion . #
Press the 005E button.
Please observethecount ry-spe cificlaws onthe
use ofrear foglam ps. Oper
ating thecombin ation switc hfo rthe
li ghts 1
Highbe am
2 Turn signal light,right
3 High-beam flasher
4 Turn signal light,left #
Use thecombin ationswitchto act ivat eth e
desir edfunc tion. Light
andvisibility 11
3