Page 65 of 610
R
With indic ator lam p1 off:via theswitc h
on thecor responding rear door ordriv‐
er' sdoor . No
teson pets intheve hicl e &
WARNIN GRisk ofacci dent andinjury
due toanim alsleftuns ecur edorunat ‐
te nde din theve hicle
If yo ulea veanim alsintheve hicle unatten‐
ded orunsecur ed,they cou ldpos siblypress
do wn butt ons orswitc hes.
Ther ebyan animal may:
R activ ateve hicle equipment andbecome
tr apped, forex am ple
R swit chsystems onoroffand endang er
ot her road user s
Uns ecur edanimals maybe throw nar ou nd in
th eve hicle intheeve ntofan acci dent or
su dd en steer ing and braking maneuv erand
injur eve hicle occupants inthepr ocess. #
Neverlea veanim alsintheve hicle unat‐
te nde d. #
Alw ayscor rectly secu reanim alswhile
dr ivin g,forex am ple usin gasuit able
anim alcar rier . Occ
upant safety 63
Page 66 of 610

Smar
tKey Ov
ervie wof Smar tKey functio ns &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftunat tende din the
ve hicle
If ch ildr enarelef tunat tende din theve hicle,
th ey cou ld:
R Ope ndoo rs,th er eb yendang ering other
per sons orroad user s.
R Getout and 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 Changing thetra nsmiss ionposition .
R Startin gth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. #
When leaving theve hicle, alwaysta ke
th eke ywit hyo uand lockth eve hicle. #
Keep theve hicle keyout ofreac hof
ch ildr en. *
NO
TEDama getotheke ycaus edby
magne ticfields #
Keep theke yaw ay from stro ng ma g‐
ne tic fields. 1
Locks
2 Batt erych ecklam p
3 Unlocks 4
Opens/closes theta ilg ate
5 Panic alar m
% The Sma rtKe yma yva ry from theone shown
in thediagr am,depending ontheve hicle
eq uipment.
The Smar tKey loc ksand unlocksth efo llo wing
com pone nts:
R thedoor s
R theta ilg ate
R thefuel filler flap
If th eve hicle isno topened within appr oximat ely
40 seco ndsafte runloc king,itloc ksagain. Anti-
th eftpr otect ion isarmed again.
Do notke ep theSmar tKey toge ther wit helec‐
tr onic devices orme talobje cts. This canaffect
th eSmar tKey 's functionality .
% Ifbatt erych ecklam p2 does notlight up
af te rpr essing theÜ orß button,the
batt eryis disc harged.
Changing theSmar tKey batt ery(/ page66). 64
Opening andclosing
Page 67 of 610

Ac
tiv atin g/deac tivatin gthe acoustic lock ing
ve rificat ion signa l Mult
imed iasystem:
4 © 5
Set ting s5
Vehicle #
Activateor deacti vate Acou sticLock . 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
Ü andß buttonssimul taneousl yfo r
appr oximat elysix seco ndsuntilth ebatt ery
ch ecklam pflashes twice.
Op tions ifth eunloc kingfunction forth edr iver's
door andfuel filler flap has been selected:
R Pressing theÜ 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 tKey .
To do so, deactiv ateth eSmar tKey functions. #
Todeac tivate: press theß 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 themar kedspace ofthecent ercon ‐
sole, theSmar tKey functions areau tomati‐
cally activated (/ page14 9). Op
ening an dclos ing 65
Page 68 of 610

Re
mo ving /ins ertin gthe eme rgency key #
Toremo ve:pr ess release knob 1.
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 knob 1 again and fully
re mo veemer gency key2. #
Toinser t:press release knob 1. #
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. 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 vetheemer gency key(/ pag e66 ). 66
Opening and closing
Page 69 of 610

#
Press release button2 down fullyand slide
co ver1 inthedir ect ion ofthear row . #
Foldout cover1 inthedir ect ion ofthe
ar row and remo ve. #
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 when doingth is. #
Push inbatt erycom partment 3. #
Re-att achco ver1 and push ituntil it
eng ages. Pr
obl ems with theSm 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.
R The Smar tKey isdef ective. #
Chec kth ebatt eryusing thebatt erych ecklam pand replace ifnec essar y(/ page66). #
Use theemer gency keyto loc kor unloc k(/ page66). #
Have theSmar tKey checkedat aqu alif ied spec ialistwo rkshop. #
Have theSmar tKey deactiv ated ataqu alif ied spec ialistwo rkshop. Opening
andclosing 67
Page 70 of 610
Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
Yo uha ve los ta Smar tKey . #
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. Cent
rally loc king andunloc kingtheve hicl e
fr om theinsid e #
Tounlo ck:pr ess button 1. #
Toloc k:press butt on2. 68
Openin gand closin g
Page 71 of 610

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 2untilth eclosing process has
been completed.
% Further information oncon venie nce closing
(/ page 79) .
If yo uopen theta ilg atefrom outs ideitis aut o‐
matic allyunloc ked. 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 (/ page65). Openin
gand closin g69
Page 72 of 610
Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
R The Smar tKey batt eryis disc 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 (/page65). #
Che ckthebatt eryusing thebatt erych ecklam pand replace ifnec essar y(/ page66). #
Use theemer gency keyto unlo ckorloc kth eve hicle (/page66). #
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