Page 65 of 578

If
yo udo notopen theve hicle within appr ox‐
imat ely40 seco ndsafte runloc king:
R The vehicle isloc kedag ain
R Anti-th eftpr otect ion isreact ivat ed
Do notke ep theSmar tKey toge ther wit helec‐
tr onic devices orme talobje cts. This canaffect
th eSmar tKey 's functionality .
Do notke ep theSmar tKey inthete mp eratur e-
con trolled cupholder .Ot her wise, theSmar tKey
will notbe reliably detected.
% Ifba tter ych ecklam p2 does notlight up
af te rpr essing the0036 or0037 button,the
batt eryis disc harged. Ac
tiv atin g/deac tivatin gthe acoustic lock ing
ve rificat ion signa l Mult
imed iasystem:
, Vehicle .
î Vehicle Set-
ting s.
Aco ustic Lock #
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv atin g/deac tivatin gthe pani calar m Re
quirement s:
R The ignit ionisswitc hedoff
% The panic alarmfunc tion isonl yav ailable in
cer tain coun tries. #
Toactiv ate: press butt on1 forapp rox‐
ima tely one second.
A visual andaudibl ealar mistrigg ered. #
Todeac tivate: briefly pr ess button1 again.
or #
Press thest ar t/ stop butt ononthecoc kpit
(t he Smar tKey isinsid eth eve hicle). Changing
theunloc kingsettings Po
ssible unlockingfunctions oftheSmar tKey :
R Cen tralunlo cking
R Unloc kin gth edr iver's door andfuel filler flap #
Toswitc hbe tw een settings: press the
0036 and0037 buttonssimul taneousl yfo r
appr oximat elysix seco ndsuntilth ebatt ery
ch ecklam pflashes twice.
If th eunloc kingfunction forth edr iver's door
and fuel filler flap has been selected:
R Pressing the0036 buttonasecon dtime cen‐
tra lly unloc kstheve hicle
R Vehicl eswith KEYLESS-GO :If yo uto uc h
th einner surface ofthedoor handle onthe
dr iver's door ,onl yth edr iver's door andfuel
fi ller flap areunlo cked. Deactiv
atingtheSm artK ey functio ns If
yo udo notuse theve hicle oraSmar tKey for
an extende dpe riod oftime, youcan reduce the
ener gycon sum ption ofthere spectiv eSmar t‐ Opening
andclosing 63
Page 66 of 578

Ke
y.To do so, deactiv ateth eSmar tKey func‐
tions. #
Todeac tivate: press the0037 buttononthe
Smar tKey twi ce inqu ick succ ession .
The batterych ecklam pof theSmar tKey
fl ashes twicebr ief lyand light sup once. #
Toactiv ate: press anybutt onontheSmar t‐
Ke y.
% When theve hicle isstar tedwit hth eSmar t‐
Ke yin thestow agecom partment ofthecen‐
te rconsole, theSmar tKey functions are
au tomatical lyact ivat ed (→ pag e16 9). Re
mo ving /ins ertin gthe eme rgency key #
Toremo ve:pr ess release button1.
Em erge ncy key2 ispush edout slightly. #
Pull outemer gency key2 untilit en gage sin
th eint ermediat eposition .
% Youcan usetheint ermediat eposition of
emer gency key2 toatt achth eSmar tKey to
a ke yring. #
Press release button1 again and fully
re mo veemer gency key2. #
Toinser t:press release button1. #
Insertemer gency key2 totheint ermediat e
position orfull yuntil iteng ages. Re
plac ingthe Smar tKey batt ery &
DANG ER Serious damag eto healt h
caused byswallo wing batteries
Batt eries cont aintoxic and corrosiv esub‐
st anc es.Swallo wing batteries ma ycause
ser ious damag eto healt h.
Ther eis arisk offata linj ury. #
Keep batt eries out ofthere ac hof chil‐
dr en. #
Ifbatt eries aresw allo wed,seek medical
att ent ion immediat ely. +
ENVIR
ONMEN TALNO TEEnvironme ntal
da ma gecau sed byimproper disposal of
batt eries Bat
teries con tain polluta nts. Itis
illeg alto dispose ofthem withth ehousehold
ru bbish. #
Dispose
ofbatt eries inan
en vironmen tally re sponsible manner.
Ta ke disc hargedbatt eries toaqu alif ied
spec ialistwo rkshop ortoacol lection
poin tfo rused batteries. 64
Opening andclosing
Page 67 of 578
Re
quirement s:
R Youre qu ire aCR 203 23V cell battery.
Mer cedes-Ben zre comme ndsthat youha ve the
batt eryre placed ataqu alif ied spec ialistwo rk‐
shop. #
Remo vethemec hanical key(→ pag e64 ). #
Press release button2 down fullyand
re mo vecover1. #
Remo vebatt erycom partmen t3 and take
out thedisc hargedbatt ery. #
Inser tth ene wbatt eryint obatt erycom part‐
ment 3.Obser vethepositiv epole marking
in thebatt erycom partmen tand onthebat‐
te ry. #
Push inbatt erycom partmen t3. #
Replace cover1 sothat iteng ages. Pr
oblem swit hth eSm artK ey Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
Yo ucan nolongerloc kor unloc kth e
ve hicle. Po
ssible causes are:
R The Smar tKey batt eryis disc hargedor near lydisc harged.
R Ther eis int erfere nce from apo we rful radio signal source. Openin
gand closin g65
Page 68 of 578
Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
R The Smar tKey isdef ective. #
Chec kth ebatt eryusing thebatt erych ecklam pand replace ifnec essar y(→ pag e64 ). #
Use theemer gency keyto loc kor unloc k(→ pag e64 ). #
Have theSmar tKey checkedat aqu alif ied spec ialistwo rkshop.
Yo uha ve los ta Smar tKey . #
Have theSmar tKey deactiv ated ataqu alif ied spec ialistwo rkshop. #
Ifnecessar y,ha ve themec hanical lockch ang edaswell. Door
s Un
loc king andopening doorsfrom theinsid e #
Tounlo ckand open afront door :pul ldoor
handl e2.
Loc king pin1pops upwhe nth edoor is
unloc ked. #
Tounlo ckare ar door :pul lth ere ar door
han dle.
The lockin gpin pops upwhen there ar door
is unlo cked. #
Toopen are ar door :pul lth ere ar door han‐
dle again. 66
Openingand closing
Page 69 of 578
Loc
king/u nlocking theve hicl ece ntr allyfrom
th einsid e #
Tounlo ck:pr ess button 1. #
Toloc k:press butt on2.
This does notloc kor unloc kth efuel filler flap. The
vehicle isno tunloc ked:
R Ifyo uha ve loc kedth eve hicle using the
Smar tKey .
R Ifyo uha ve loc kedth eve hicle using KEY‐
LESS -GO. Loc
king/unloc kingtheve hicl ewith KEY‐
LES S-GO Re
quirement s:
R The Smar tKey isouts idetheve hicle.
R The distance betwee nth eSmar tKey and the
ve hicle does notex ceed 3ft (1 m).
R The driver's door andthedoor atwhic hth e
door handle isused areclosed. #
Tounlo cktheve hicl e:touc hth einner sur‐
fa ce ofthedoor handle. #
Toloc kth eve hicl e:touc hsen sor surface
1 or2. #
Convenience closing:touc hre cess edsen‐
sor surface 2foran extende dpe riod.
% Further information oncon venie nce closing
(→ page 80) . Openi
ngand closi ng 67
Page 70 of 578
If
yo uopen thetrunk lidfrom outside, thetrunk
lid isaut omaticall yunloc ked. Pr
oblems withKEYLE SS-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 Smar tKey batt eryis we ak ordisc harged.
R Ther eis int erfere nce from apo we rful radio signal source.
R The Smar tKey isdef ective. #
Chec kth ebatt eryusing thebatt erych ecklam pand replace ifnec essar y(→ pag e64 ). #
Use themec hanical keyto loc kor unloc kth eve hicle (→pag e64 ). #
Have theve hicle andSmar tKey checkedat aqu alif ied spec ialistwo rkshop. Switc
hingtheaut oma ticlocking featur e
on/ off The
vehicle isloc kedaut omatic allywhen the
ignit ionisswitc hedonand thewheels aretur n‐
ing faster than walkin gpace. 68
Openingand closing
Page 71 of 578

#
Todeac tivate: press and holdbu tton 1 for
appr oximat elyfive seconds untilanacous tic
signal sounds. #
Toactiv ate: press and hold button2 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 The vehicle isbeing towe d/pushed. R
The vehicle isbeing tested on adynamome‐
te r. Inf
orma tion onthepo we rcl os ingfun ction
fo rthe doors If
yo upush thedoor intoth eloc kto thefirs t
de tent positio n,thepo we rclosi ngfunction will
au tomatical lypul lth edoor intoth eloc k. 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 69
Page 72 of 578

#
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 option sfo ropening the
tr unk lid: #
Pullth etrunk lidhandle. #
Vehicl eswith trunk lidconvenience clos‐
ing: With thetrunk lidstopped inan inter‐
mediat eposition, pullthetrunk lidupw ards
and release assoon asitbegin sto open. #
Press and hold the008B buttononthe
Smar tKey . #
Pull trunk lidremo teoper ating switch1. 70
Opening andclosing