ignition MERCEDES-BENZ C-CLASS SEDAN 2020 Owner's Manual

Re
stra int system functiona lity When
theignition isswitc hedon,aself-t estis
per form ed, during whic hth e0075 restra int sys‐
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
If th ere stra int system ismalfunct ioning,
re stra int system com ponen tsma ybe trig‐ ge
redunint entionall yor ma yno tdeplo yas
int ended during anacciden t.This mayaf fect
th eEmer gency Tensi oni ng Device sor air‐
ba gs, forex am ple. #
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 ofth
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, forex am‐
ple, this ma yre sult insuf ficie ntly highleve ls of
ve hicle deceler ation. 34
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 yedaf te rth eself-t est:
R PASSENGER AIRBAGON light sup for
60 seconds ,sub sequently both indic ator
lam psareof f(P AS SENGER AIR BA GON and
OF F): thefront passeng erairbag isable to
deplo yin theev ent ofan acciden t.
R PASSENGER AIRBAGOF Flight sup con tinu‐
ousl y:thefront passeng erairbag isdisabled.
It will then notbe deplo yedin theeve ntofan
acci dent.
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 aut omat icfron tpasse nger airbag
shut offch eckedand repair edimmediat elyata
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 hfrom
using are ar wa rd-faci ng child restra int
sy stem when thefront passeng erfront
airbag isenabled
If yo usec ureach ild inare ar wa rd-facin g
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.
Alw aysensur eth at thefront passeng erair‐
bag isdeactiv ated. The PASSENGER AIRBAG
OFF indicat orlam pmus tbe lit. Occupant
safety 45

#
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. #
Activateth ech ild safetyloc kfo rth e
re ar side windows. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. Re
quirement s:
R The powe rsupp lyor theignition isswitc hed
on. 1
Closes
2 Opens
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. 80
Openingand closing

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
(/ page91 ) R
When theto w- aw ay alar mistrigg ered
(/ page91 )
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
R Afterpr essing thest ar t/ stop butt onwithth e
Smar tKey inthestow agecom partment
(/ page14 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 326) .
% Inthecase ofsevere batt erydisc harging,
th eanti- theftalar msystem isaut omatic ally
deactiv ated tofacil itat eth ene xt engine
st ar t.
Deact ivat ing theATA #
Press theÜ, ßor008B buttononthe
Smar tKey . 90
Openin gand closing

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. The
seats canbeadjus tedwhen theignition is
switc hedoff. &
WARNIN GRisk ofbeco ming trap ped
whe nad jus ting theseats
When youadj usta seat ,yo uor other vehicle
occupants couldbecome trapped, e.g.onthe
seat guide rail. #
When adjustingaseat, makesur eth at
no onehas anybody partsinthesw eep
of theseat. Obser
vethesaf etyno teson "Airbags" and"Chil‐
dr en intheve hicle". &
WARNIN GRisk ofacci dent dueto the
dr iver's seat notbeing engaged
If th edr iver's seat isno teng aged, itcould
mo veune xpectedl ywhile theve hicle isin
mo tion.
This could cause youto 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 ofinju ryfrom adju sting
th eve hicle settin gswhile theve hicle isin
mo tion
Yo uco uld lose contro lof theve hicle inthe
fo llo wing situat ions:
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: adjustth e
dr iver's seat, thehead restra int ,th e
st eer ing wheel orthemir rorand 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. 94
Seatsand stow ing

Switc
hingthest eer ing wheel heateron/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 heaterisswitc hedon. When
youswit chtheignition off,th esteer ing
wheel heaterwill switc hof f. Easy
entryand exitfeatur e Usi
ngtheeasy entryand exitfeatur e &
WARNIN GRisk ofacci dent whendr ivi ng
of fwhi lead jus ting theeasy exitfeatur e
‑ If yo udr ive of fwhile theeasy entryand exit
fe atur eis mak ingadjus tment s,yo uco uld
lose contro lof theve hicle. #
Alw ayswa itunt ilth eadjus tmentpr oc‐
ess iscom pletebef oredr iving off. &
WARNIN GRisk ofbeco ming trap ped
whi lead jus ting theeasy entryand exit
fe atur e
When theeasy entryand exitfeatur eadjus ts
th esteer ing wheel andthedr iver's seat, you
and other vehicle occupants –par ticular ly
ch ildr en–could becom etrapped. #
Dur ing theadjus tmentpr ocess ofthe
easy entryand exitfeatur e,mak esur e th
at no onehas anybody partsinthe
sw eep oftheseat orthesteer ing wheel.
If th er eis arisk ofbecoming trapped bythe
st eer ing wheel: #
Movetheadjus tmentle ve rof thesteer‐
ing wheel.
The adjus tmentpr ocess isstopped.
If th er eis arisk ofbecoming trapped bythe
dr iver's seat: #
Press theseat adjus tmentswitc h.
The adjus tmentpr ocess isstopped. Ve
hicl eswith memor yfuncti on:Youcan stop
th eadjus tmentpr ocess bypressing oneofthe
memor yfunction position switc hes. &
WARNIN GRisk ofbeco ming trap ped
du ring acti vatio nof theeasy entryand
ex itfeatur eby childr en
If ch ildr enact ivat eth eeasy entryand exit
fe atur e,they can beco metrap ped ,pa rticu‐
lar lywhen unattende d. Sea
tsand stow ing 10
3

#
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 willmoveupw ards onlyif
it is no talr eady ashigh asitwill go.The driv‐
er's seat willmovebac kwards onl yif it is no t
alr eady inthere ar mos tposit ion.
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 willbestor ed when:
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 save dposition buttons to
st op 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. Oper
ating themem 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. &
WARNIN GRisk ofentr apment whense t‐
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 these tting procedur eof the
memor yfunction, ensureth at no body
par tsarein thesw eep oftheseat or
th esteer ing wheel. 10
4
Sea tsand stow ing

R
Onlyconnec tde vices uptoamax imum of
18 0W (15 A). #
Liftup soc ketcap 1. #
Makesur eth at no cable sar eru nning
th ro ugh orsec ured intheairbag deployment
ar ea when usingthesoc ket.Als oob serveth e
no teson airbag protect ion (/ page41 ). USB
portin there ar passe nger comp artment Dependi
ngon theeq uipment installed, theve hi‐
cle has one ortwoUSB portsinthere ar
passe nger com partment centerconsole. Ex
am ple: USB portsinthere ar passe nger com part‐
men tcen terconsole Yo
ucan charge aUS Bde vic e,e.g .a mobi le
phon e,at US Bpor ts1 usin gasuit able charg‐
ing cable .
The devic es can becharge dwit h5 V (2. 1A) and
when theignition isswitc hedon. Wi
reless chargin gof themobil eph one and
connecti onwit hth eex terior ant enna No
teson wir elessl ych argin gth emobil e
ph one &
WARNIN GRisk ofinju rydue toobject s
being stowe dincor rectly
If obje ctsintheve hicle interior arestowe d
inc orrectl y,they can slide orbe throw n
ar oun dand hitvehicle occupants. Inaddi‐
tion, cupholder s,open stow agespac esand
mobi lephon ere cep tacle scanno tal wa ys
re tain all obje ctsth ey cont ain.
The reisarisk ofinjur y,par ticular lyin the
eve ntofsudd en braki ng orasu dd en chang e
in dir ect ion. 11
8
Sea tsand stow ing

R
Obser vetheno teson sur round lighting
(/ page12 6).
Au tomatic drivin glights function
The parking light s,low beam anddaytime run‐
ning lamp sar eswitc hedonaut omatically
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
High-beam headlamp s
2 Turn signal indicat or,ri ght
3 High-beam flasher
4 Turn signal indicat or,lef t #
Use thecombin ationswitchto act ivat eth e
desir edfunc tion. 12
2
Light andvisib ility

#
Seta col or.
Ad jus tingthe brightne ss #
Select Bright nes s. #
Seta br ightne ssvalue.
Ac tiv atin gthe brightne ssforzon es #
Select Brightne ssZones . #
Activate0073 ordeacti vate 0053 thefunc tion.
The Display ,Fron tand Rear zonescan beset
separ ately . Se
tting theint erior light ingswitc h-offdela y
tim e Multi
media system:
4 Vehicle 5
÷ LightSetting s
5 Int.Light SwitchOff #
Setth eswitc h-offdela ytime. Wi
ndshield wiperandwindshield washer
sy stem Switc
hingthewindsh ieldwiper son/of f 0047
005AWindsh ield wipe rof f
0048 0062 Intermitt entwiping, normal
0049 0063 Intermitt entwiping, frequent 004A
00AA Continu ouswi ping, slow
004B 00A9 Continuous wiping,fast #
Turn thecombin ationswitchto thecor re‐
sponding position0047-004B. #
Sing lewipe/w ashing: pushthebutt onon
th ecombin ationswitchin thedir ect ion of
ar row 1.
R 00D3 Singlewipe
R 00D4 Wipes withwa sher fluid Cha
nging thewindsh ieldwiper blades &
WARNIN GRisk ofbeco ming trap ped if
th ewindshield wipersar eswitc hedon
while wiper blades arebeing replaced
If th ewindshield wipersbegin tomo vewhile
yo uar ech ang ingthewiper blades, youcan
be trapped bythewiper arm. #
Alw aysswitc hof fth ewindshield wipers
and theignition beforech ang ingthe
wiper blades. Light
andvisib ility 12
7