2020 MERCEDES-BENZ C-CLASS COUPE key

Pr
oblems withKEYLESS-GO Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
Yo ucan nolongerloc kor unloc kth e
ve hicle using KEYLES S-GO. Po
ssible causes are:
R The keyfun ction sha ve been deactiv ated (/ page64 ).
R TheSma rtKe ybat tery isdisc hargedor near lydisc harged.
R Ther eis int erfere nce from apo we rful radio signal source.
R The Smar tKey isfaulty . #
Activateth eSmar tKey functions (/page64 ). #
Chec kth ebatt eryusing thebatt erych ecklam pand replace ifnec essar y(/ page65). #
Use theemer gency keyto unlo ckorloc kth eve hicle (/page65). #
Have theve hicle andSmar tKey checkedat aqu alif ied spec ialistwo rkshop. Ac
tiv atin g/deac tivatin gthe automati clo ck ‐
ing featur e The
vehicle isloc kedaut omatic allywhen the
ignit ionisswitc hedonand thewheels aretur n‐
ing faster than walkin gpace. 70
Openingand closing

#
Toactiv ate: press and hold button2 for
appr oximat elyfive seconds untilanacous tic
signal sounds. #
Todeac tivate: press and holdbu tton 1 for
appr oximat elyfive seconds untilanacous tic
signal sounds. In
thefo llo wing situat ions,th er eis adang erof
being lockedout when thefunc tion isactiv ated:
R While theve hicle isbeing tow star ted/
pushed.
R Ifth eve hicle isbeing tested on aro ller dyna‐
mome ter. Loc
king/u nlocking thedr iver' sdoor withth e
emer gency key %
Ifyo uwish toloc kth eve hicle entirelyusing
th eemer gency key,firs tpr es sth ebutt onfor
loc kin gfrom theinside whilethedr iver's
door isopen. Thenproceed toloc kth edr iv‐
er's door using theemer gency key. #
Inser tth eemer gency keyas faras itwil lgo
int oopening 1intheco ver. #
Pull and hold thedoor handle. #
Pull theco veron theemer gency keyas
st ra ight aspossible away from theve hicle
until itre leases. #
Release thedoor handle. Openin
gand closing 71

#
Tounlo ck:tur nth eemer gency keyco unt er-
clo ckwise toposition 0047. #
Toloc k:tur nth eemer gency keyclo ckwise to
position 0047. #
Carefully press theco veront oth eloc kcyli n‐
der until iteng ages and isseat edfirm ly. Tr
unk Openi
ngthetrunk lid &
DANG ER Risk ofexhaus tga spoisoning
Combus tionengines emitpoisonous exhaus t
ga ses suchas carbon monoxide.Exhaus t
ga ses can entertheve hicle interior ifth e
tr unk lid is op en when theengine isrunning ,
esp ecially ifth eve hicle isin mo tion. #
Alw aysswitc hof fth eengine before
opening thetrunk lid. #
Neverdr ive wit hth etrunk lidopen. *
NO
TEDama getothetrunk lidbyobs ta‐
cle sab ove theve hicle The
trunk lidswings upwards when itis
opened. #
Ther efor e, mak esur eth at ther eis suf fi‐
cie ntcle arance above thetrunk lid. Yo
uha ve thefo llo wing options forope ning
the trunk lid: #
Vehicl eswith HANDS -FREEACCESS: Use
yo ur foot to kic kbe low thebum per
(/ page75 ).
Ve hicl eswith trunk lidconvenience closing #
Pull trunk lidremo teoper ating switch1. #
Press and hold the008B buttononthe
Smar tKey . 72
Opening andclosing

#
Fora trunk lidstopped inan intermediat e
position, pullitupw ards and release itas
soon asitstar ts to open.
Wi th thetrunk lidopening heightrestriction
acti vated, manuall ypull thestopped trunk lid
upw ards.
If an object obstructs thetrunk liddur ing the
aut omat icopen ingproce ss,object recogni tion
wi llst op thetrunk lid.The objec tre cogni tion
functi onisonly anaid and isno ta su bs titu tefor
yo ur att entiven ess . Closing
thetrunk lid &
WARNIN GRisk ofinju ryfrom unsecu red
it ems intheve hicle
If object s,lugg ageor loads areno tsecur ed
or notsecur edsuf ficie ntly,they cou ldslip,
tip ove ror be throw nar ou nd and ther eb yhit
ve hicle occupants.
Ther eis arisk ofinjur y,par ticular lyin the
ev ent ofsudden braking orasudden chang e
in dir ect ion. #
Alw aysst ow object sin suc hawa yth at
th ey canno tbe thro wn around . #
Beforeth ejour ney,secur eobjects, lug‐
ga ge orloads agains tslipping ortipping
ove r. Com
plywit hth eloading guidelines whenyouar e
loadin gth eve hicle.
Yo uha ve thefo llo wing options forcl os ing
the trunk lid: #
Pullth etrunk liddown wardsusing thehan‐
dle recess andpush itclos ed.
Ve hicl eswith trunk lidconvenience closing &
WARNIN GRisk ofbeco ming trap ped
du ring automatic closing ofthetrunk lid
Pa rts of thebody could become trapped dur‐
ing automatic closing ofthetrunk lid.Mor e‐
ove r,people, e.g.childr en, maybe standi ng
in theclosing area orma yent ertheclosing
ar ea dur ing theclosing process. #
Mak esur eth at nobody isin thevicin ity
of theclosing area dur ing theclosing
pr ocess.
Use oneofthefo llo wing option sto stop the
clos ingproces s:
R Press the008B buttonontheSmar tKey .
R Press orpull there mo teoper ating switch
on thedr iver's door .
R Press theclosing orloc king buttonon the
tr unk lid. #
Vehicl eswith HANDS -FREEACCESS: itis
also possibletostop theclosing process by
making akic king movement belowthere ar
bum per.
Yo uha ve thefo llo wing options forcl os ing
the trunk lid: #
Pullth etrunk liddown wardsusing thehan‐
dle recess andpush itclos ed. #
With thetrunk lidstopped inan intermediat e
position, pushitdo wn wards.
The trunk lidwill cont inue toclos e. Ope
ning andclosing 73

#
Press there mo teopening switchfo rtr unk lid
1. #
Press closi ngbutt on1 onthetrunk lid.
Ve hicl eswith KEYLESS-GO #
Press locking button2 onthetrunk lid.
If aSmar tKey isde tected outsid eth eve hicle,
th etrunk lidwill close andtheve hicle willbe
loc ked. #
With thetrunk lidcom pletely op ened ,pr es s
and hold the008B buttonontheSmar tKey (wit
hth eSmar tKey inthevicin ityoftheve hi‐
cle).
Ve hicl eswith HANDS -FREEACCESS #
With thetrunk lidcom pletely op ened ,ma kea
kic king movement withyo ur foot belo wthe
bum per(/ page75 ).
Tr unk lidaut omatic reve rsing funct ion
If an objec tobs truct sth etrunk liddur ing the
aut omat icclo singpr oce ss,thetrunk lidwill
open again automaticall y.The automatic reve rs‐
ing func tion isonl yan aid and isno ta subs titute
fo ryo ur att entiven ess . #
Dur ing theclosing process, makesur eth at
no body partsarein theclosing area. &
WARNIN GRisk ofbeco ming trap ped
des pite reve rsing func tion
The reve rsefunc tion does notre act :
R Tosof t,light andthin obje cts, e.g. fing ers
R Overthelas t00C2 in(8 mm) oftheclosing
pat h. 74
Opening andclosing

In
these situation sin par ticular ,th ere ve rsing
func tion cannotpr eve ntsom eone being trap ‐
pe d. #
Whe nclo sing, makesur eth at no body
par tsarein theclosing area.
If someon eis trapped:
R Press the008B buttonontheSmar tKey ,
or
R Press orpull there mo teoper ating switch
on thedr iver's door ,or
R Press theclosing orloc king buttononthe
tr unk lid. HA
NDS -FREE ACCESS function Wi
th HANDS-FREE ACCES Syo ucan open ,clo se
or interru pt trunk lid mo vement byper form ing a
kic kin gmo vement under there ar bum per.
The kickin gmo vement trigg ersth eopening or
closing process alternat ely.
Obser vetheno teswhen opening (/page72 )
and closing(/ page73 )th etrunk lid. %
Awa rning tone sou nds while th etrunk lidis
opening orclosing. &
WARNIN GRisk ofburnscaused byaho t
ex haus tsy stem
The vehicle exhaus tsy stem can become very
ho t.Ifyo uuse HAND S-FRE EAC CES S,you
cou ldbu rn yourself bytouc hin gth eex haus t
sy stem. #
Alw aysensur eth at youon lyma kea
kic king movement within thede tection
ra ng eof thesensor s. *
NO
TEDama getotheve hicle caused by
unin tentio nallyopening thetrunk lid R
When usinganaut omatic carwash
R When usingahigh pressur ecleaner #
Deactiv ateKEYLES S-GOormak esur e
th at theSmar tKey locat edisat leas t
10 ft(3 m) away from theve hicle in
suc hsituations. Opening
andclosing 75

When
making thekic king movement, makesur e
th at your feet arefirm lyon thegr ound, other‐
wise youco uld lose your balan ce,e.g.on ice.
Obs erve thefo llo wing notes:
R The Smar tKey isbehin dth eve hicle.
R Stand atleas t12 in(30 cm) away from the
ve hicle while perform ing thekic king move‐
ment.
R Donotcome intocont actwithth ebum per
while making thekic king movement.
R Donotcar ryout thekic king movement too
slo wly.
R The kicking movement mustbe towa rdsth e
ve hicle andbackag ain. 1
Detection rang eof thesensor s
If se veralcon secut ive kic kin gmo vements are
no tsuccessfu l,wa itte nseco nds.
Sy stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing cases :
R The area around thesensor isdir ty,e.g. due
to road salt orsnow .
R The kicking movement ismade using apr os‐
th etic leg. The
trunk lidcould beopen edorclos edunin ten‐
tio nal ly,in thefo llo wing situat ions:
R Ifaper son 'sarms orlegs aremo vingin the
sensor detection rang e, e.g .wh en polishi ng
th eve hicle orpic king upobject s.
R Ifobject sar emo vedor placed behind the
ve hicle, e.g.tensi oni ng stra ps orlugg age.
R Ifclam ping stra ps, tarp sor other coverings
ar epu lled ove rth ebum per.
R Ifapr otect ive mat withalengt hre ac hin g
ov er thetrunk silldown intoth ede tection
ra ng eof thesensor sis used.
R Ifth epr otect ive mat isno tsecur edcor rectly .
R Whe nwo rking onthetra iler hitch,tra iler sor
re ar bicy clerack s.
Deactiv ateKEYLES S-GO(/page64 )or do not
car rytheSmar tKey about your per son insuc h
sit uatio ns. Swit
ching separ atetrunk locking onoroff If
yo ucen trall yunlo cktheve hicle while separate
loc king isactiv ated, thetrunk willremain locked. 76
Opening andclosing

#
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
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. 78
Opening andclosing