key MERCEDES-BENZ C CLASS 2021 Owner's Manual

Ext
endin gor retracti ngthe rear-wi ndo w
ro ller sunblind &
WARNIN GRisk ofbeco ming trap ped
whe nex tendi ng orretracti ngthero ller
sunblin d
Body partsma ybecom etrapped inthero ller
sunblin d'srang eof mo vement. #
Ensur eth er ear eno body partsinthe
ra ng eof mo vement. #
Ifsomeone becomestrapp ed,brief ly
pr ess thebutt onagain.
The opening orclosing process will
br ief lybe stopped. Theroller sunblin d
will then retur nto its star tin gposit ion. *
NO
TEDama gecau sed byobject s Object
sma ycause thero ller sunblin dto mal‐
function. #
Donotst or ean yobject son thepar cel
shelf. #
Mak esur eth at thero ller sunblin dcan
mo vefreely . #
Toextend orretract: press button 1. An
ti-thef tpr 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
(/ page87 ) Opening
andclosing 85

R
When theto w- aw ay alar mistrigg ered
(/ page86 )
The ATA system 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 omaticall yin
th efo llo wing situat ions:
R Afterunloc kingtheve hicle withth eSmar t‐
Ke y
R Afterunloc kingtheve hicle using KEYLES S-
GO
R Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestor ag ecom partmen t
(/ page13 3)
% WhentheMer cedes‑ Benzemergency call
sy stem isactiv eand thealar mstay son for
mor eth an 30 sec onds, ames sageis aut o‐
mat icall ysen tto theCus tomer Assis tance
Ce nter (/ page 277).
% Inthecase ofsevere batt erydisc harging,
th eanti- theftalar msystem isaut omaticall y
deactiv ated tofacil itat eth ene xt engine
st ar t.
Deact ivat ing theATA #
Press theÜ, ßor008B buttononthe
Smar tKey . or #
Press thest ar t/ stop butt onwithth eSmar t‐
Ke yin thestow agecom partment
(/ page13 3)
De activ ating theala rm using KEYLESS-GO #
Grasp theoutside doorhandle withth e
Smar tKey outside theve hicle. Fu
nction oftheto w- aw ay alar m %
This function mayno tbe available inall
coun tries.
An audible andvisual alarmistrigg ered ifan
alt eratio nto your vehicle's angleof inclination is
de tected whi letheto w- aw ay alar misarmed.
The tow- aw ay alar misaut omat icallyar med afte r
appr oximat ely60 seco nds:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO
The tow- aw ay alar mison lyarmed when thefo l‐
lo wing compone ntsar eclos ed:
R Doo rs 86
Openin gand closing

R
Trunk lid
The tow- aw ay alar misaut omat icallydeac tiva‐
te d:
R Afterpr essing theÜ or008B buttonon
th eSmar tKey
R Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestor ag ecom partmen t
(/ page13 3)
R Afterunloc kingtheve hicle using KEYLES S-
GO
R When usingHAND S-FREE ACCES S
In fo rm atio non collision detection onapa rked
ve hicle (/page15 6). Ar
min g/dis armin gthe tow- aw ay alar m Mul
timedi asy stem:
4 Vehicle 5
î Vehicle Setting s
5 Tow-away Protection #
Activate0073 ordeacti vate 0053 thefunc tion. The
tow- aw ay alar misarmed again inthefo llo w‐
ing cases :
R The vehicle isunloc kedag ain.
R Adoor isopened.
R The vehicle isloc kedag ain. Fu
nction oftheint erior motion sensor %
This function mayno tbe available inall
coun tries.
When theint erior motion sensor isarmed, avis‐
ual and audible alarmistrigg ered ifmo vement is
de tected intheve hicle interior .
The interior motion sensor isarmed automati‐
cally afte rapp roxima tely tenseco nds:
R Afterloc king theve hicle withth eSmar tKey
R Afterloc king theve hicle using KEYLES S-GO
The interior motion sensor isonl yar med when
th efo llo wing compone ntsar eclos ed:
R Doo rs
R Trunk lid The
interior motionsen sor isaut omat icallydeac ‐
tiv ated:
R Afterpr essing theÜ or008B buttonon
th eSmar tKey
R Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestor ag ecom partmen t
(/ page13 3)
R Afterunloc kingtheve hicle using KEYLES S-
GO
R When usingHAND S-FREE ACCES S
The follo wing situat ionscanlead toafa lse
alar m:
R Movingobje ctssuc has masc otsin theve hi‐
cle interior
R When theside windo wisopen
R When thesliding sunroofisopen
R When thepanor amicsliding sunroofisopen Openin
gand closing 87

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. 90
Seats andstow ing

st
eer ing wheel andmirror,and fasten
yo ur seat belt. &
WARNIN GRisk ofentr apment forch il‐
dr en when adjustingth esteer ing wheel
Childr encould injureth emselv esifth ey
adjus tth esteer ing wheel. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Tounlo ck:pu sh release leve r1 down as
fa ras itwil lgo. #
Adjus the ight 2 and dist anc e3 tothe
st eer ing wheel. #
Toloc k:push release leve r1 upasfaras it
wil lgo. #
Chec kand makesur eth at thesteer ing col‐
umn isloc kedby mo ving thesteer ing wheel. Ad
jus tingthe steer ing wheel electrically The
steer ing wheel canbeadjus tedwhen the
po we rsupp lyis disco nnect ed. 1
Toadjus tth edis tance tothesteer ing wheel
2 Toadjus tth eheight #
Save these ttings withth ememor yfunc tion
(/ page10 1). 98
Seats andstow ing

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. Ve
hicl eswith memor yfuncti on:Youcan stop
th eadjus tmentpr ocess bypressing oneofthe
memor yfunction position switc hes. Seats
andstow ing 99

&
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 Vehicl eswith memor yfuncti on:Youcall
up theseat settings viathememor yfunc tion.
R Vehicl eswith memor yfuncti on:Yousa ve
th eseat settings viathememor yfunc tion.
Ve hicl eswith memor yfuncti on:Press one of
th ememor yfunc tion memor yposition switches
to stop theadjus tmentpr ocess. 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. 10
0
Sea tsand stow ing

&
WARNIN GRisk ofentr apment when
ad jus ting theseat withth ememor yfunc ‐
tion
When thememor yfunc tion adjus tstheseat
or steer ing wheel, youand other vehicle
occupants –par ticular lych ildr en–could
becom etrapped. #
Dur ing theadjus tingprocess ofthe
memor yfunction, ensureth at no body
par tsarein thesw eep oftheseat or
th esteer ing wheel. #
Ifsomebody becomestrapped, immedi‐
at elyre lease thememor yfunc tion posi‐
tion button.
The adjus tmentpr ocess isstopped. &
WARNIN GRisk ofentr apment ifth e
memor yfunction isactiv ated bychildr en
Childr encould becom etrapped ifth ey act i‐
va te thememor yfunc tion,par ticular lywhen
unatt ended. #
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 usethememor yfunc tion when theigni‐
tion isswitc hedoff.
Seat adjus tmentsforup tothre epeople canbe
st or ed and called upusing thememor yfunc tion.
Yo ucan save settin gsforth efo llo wing systems:
R Seat, backres tand head restra int
R Steer ing wheel
R Outside mirrors
R Hea d-up Display Oper
ating themem oryfun ction St
oring #
Setth edesir edposition forall systems. #
Brief lypress memor ybutt onV andthen
pr ess prese tposition 0037,TorU
wit hin thre esecon ds.
An acous ticsignal sounds. Thesettings are
st or ed. Seats
andstow ing 10
1

Dr
ivin g No
teson Mer cedes- AMGvehicl es Obser
vetheno teson thefo llo wing topics inthe
Sup pleme nt,other wise youma yfa ilto recogni ze
da ngers.
% The availabilit yof cer tain func tionsdepen ds
on theeq uipment andmodel oftheve hicle.
R Emo tion Start
R Rear axle lockin gdif fere ntia l
R AMG Perfor mance exhaus tsy stem
R AMG ceramic high-per form anc ecom posit e
br ak esy stem
R Tract ion control
R RACE STAR T
R AMG adaptivespo rtsuspension system
R AMG steer ing-wheel buttons Switc
hingonthepo we rsupp lyor ignit ion &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftunat tende din the
ve hicle
If ch ildr enarelef tunsuper visedintheve hi‐
cle, they cou ld,in pa rticular :
R open doors,ther eb yendang ering other
per sons orroad user s.
R getou tand bestru ck byoncom ingtraf‐
fi c.
R ope rate vehicle equipment andbecome
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion, forex am ple by:
R releasing thepar king brak e.
R chang ingthetra nsmiss ionposition .
R star tin gth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Keep theve hicle SmartKey out ofreac h
of childr en. Re
quirement s:
R The Smar tKey isin theve hicle andisrecog‐
nized .
R The brak eped alisno tdep ressed. Dr
iving andparking 13
1

#
Toswitc hon thepo we rsupp ly:pr ess but‐
to n1 once .
Yo ucan activat eth ewindshield wipers,for
ex am ple.
The powe rsupp lyis switc hedoffag ain ifth efo l‐
lo wing condition sar eme t:
R Youopen thedr iver's door .
R Youpr ess button1 twice mor e. #
Toswitc hon theignit ion:press butt on1
twic e.
The indic ator lam psintheins trument cluster
light up.
The ignit ionisswitc hedoffag ain ifone ofthe
fo llo wing condition sis me t:
R Youdo notst ar tth eve hicle within
15 minut esand thetransmission isin posi‐
tion 005Dortheelectr icpar king brak eis
applied.
R Youpr ess button1 once . St
arting theve hicl e St
arting theve hicl ewith thest ar t/s topbut‐
to n &
DANG ER Risk ofdeat hcause dby
ex haus tga ses
Combus tionengines emitpoisonous exhaus t
ga ses suchas carbon monoxide.Inhaling
th ese exhaus tga ses ishazar dous tohealt h
and leads topoisonin g. #
Neverlea vetheengine or,if pr esent ,
th eauxiliar yheating running inan
encl osedspa cewithout sufficie ntventi‐
la tio n. &
WARNIN GRisk offire due toflammab le
mat erial intheengine compartmen tor
th eex haus tsy stem
Flammable materials mayignit e. #
Ther efor e, checkre gular lythat ther e
ar eno flammab lemat erials inthe
engine compartmen tor on theex haus t
sy stem. Re
quirement s:
R The Smar tKey isin theve hicle andisrecog‐
nized . #
Shif tth etra nsmiss iontoposition 005Dor005C. #
Depr essthebr ak epedal andpress butt on
1 onc e. #
Ifth eve hicle does notst ar t:switc hof fnon-
essential consumer sand press butt on1
once. 13
2
Driving and parking