
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 e13 7). 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. Opening
andclosi ng 65

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 e65 ). #
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. 66
Openin gand closin g

#
Startth eve hicle withth est ar t/ stop butt on
(→ pag e13 6) and simu ltaneou sly pul lone of
th esteer ing wheel paddle shifters 1 or2.
R The idlespeed isincr eased brief lywhen
st ar tin gth eengine.
R The exhaus tga sflaps areopen ed(spo rty
ch aract eristic )(→ pag e14 6).
St arting theve hicl ein emer gency oper ation
mode
If th eve hicle does notst ar tand thePlace the
Key inthe Marked SpaceSeeOperator 'sManual
messag eappear sin themultifunc tiondispla y,
yo ucan star tth eve hicle inemer gency operati on
mod e. #
Makesur eth at mar kedspace 2isem pty. #
Remo veSmar tKey 1 from theke yring. #
Place Sma rtKe y1 inmar kedspace 2.
The vehicle willstar taf te ra shor ttime.
If yo ure mo veSmar tKey 1 from mar ked
space 2theengine continues running .Fo r
fur ther vehicle star ts howe ver,Smar tKey 1
mus tbe locat edinmar kedspace 2during
th eent ire jour ney. #
Have theSmar tKey 1 checkedat aqu alif ied
spec ialistwo rkshop.
If th eve hicl edoes notst ar t: #
Place SmartKey 1 inmar kedspace 2and
lea veitth er e. #
Depr essthebr ak epedal andstar tth eve hicle
using thest ar t/ stop butt on.
% Youcan also switchon thepo we rsupp lyor
th eignition withth est ar t/ stop butt on. St
arting theve hicl evia Remo teOnline serv‐
ices Cooling
orheating theve hicl eint erior before
co mmenci ngyour jour ney
% This function isno tav ailable inall coun tries.
If yo ustar tth eve hicle viayour smar tphon e,the
pr ev iousl yselec tedair con dition ingadjus tment
is activ e.
En sur eth efo llo wing beforest ar tin gth eengine:
R The legalstipulation sin thear ea wher eyo ur
ve hicle ispar kedallo wengin est ar tin gvia
smar tphon e.
R Itis saf eto star tand runth eengine where
yo ur vehicle ispar ked.
R The fuel tank issu fficien tly filled.
R The star terbatt eryis suf ficie ntly charge d.
Char ging thebat tery bef orecommencing
yo ur jour ney
% This function isno tav ailable inall coun tries.
R Ifth eve hicle batteryis disc harg ed,you
re cei veames sageon your smar tphon e. Dr
ivin gand parking 13
7

Smar
tKey Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
00AF Obtain aNew Key *T
heSmar tKey nee dstobe replaced. #
Visit aqu alif ied spec ialistwo rkshop.
00AF Repla ceKey Battery *T
heSmar tKey batt eryis disc harged. #
Replace thebatt ery(→ pag e65).
00AF
Don 'tForget YourKey *A
warning tone also sou nds. Thismes sage reminds youto take your Sm artK ey wit hyo uwhen youlea vetheve hicle.
00AF
Key NotDetec ted(whit e
displa ymessag e) *T
heSmar tKey iscur rently undetect ed. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Ifth eSmar tKey isstill no tre cogni zed,star tth eengine withth eSmar tKey inthemar kedspace (→pag e13 7). 46
2
Dis play messa gesand warning/ indic ator lam ps

Ve
hicl e Dis
playmessag es
Possible causes/conseq uencesand0050 0050
Solutions
0072 Vehicle Operation alSwitc h
the Ignit ionOffBefore Exit-
ing *Y
ouarelea ving theve hicle when itis in are ady -to- dr ive st at e. #
When leavingth eve hicle, switchof fth eignition ,secur eth eve hicle agains tro lling away and take theSmar tKey
wit hyo u. #
Ifyo udo notlea vetheve hicle, switchof fth eelectr icalconsumer s,e.g. theseat heating. Other wise, the12 ‑V
ba tter yma ydi sc ha rgeand itwi llth en be possible tostar tth eve hicle onlyusing adonor battery(s ta rting assis‐
ta nce) .
00CA Ope rationOnl yPos sibl e in
Tra nsmi ssion Pos ition P *
Yo uha ve attem pte dto displace theball coupling andthetra nsmiss ionisin position 005E,005Cor005B. #
Depr essthebr ak epedal. #
Shif tth etra nsmiss iontoposition 005D.
Driv er's Door Open &
Transm issionNotinPRisk
of Vehicle RollingAway *
The driver's door isno tfully closed andthetransmission isin position 005E,005Cor005B. #
Shif tth etra nsmiss iontoposition 005Dwhen youpar kth eve hicle.
N Permanent lyAct ive Risk
of Rolli ngAway *
While theve hicle isrolling orwhile youar edr ivin g,thetra nsmiss ionhas been shiftedto position 005C. #
Depr essthebr ak epedal tostop and, when theve hicle isstatio nary,shif tth etransmission toposition 005D. #
Tocontinu eyo ur jour ne y,shif tth etransmission toposition 005Bor005E.
* Yo uha ve attem pte dto shif tth etra nsmiss ionout ofposition 005Dor005C intoano ther transmission position. 46
4
Displa ymessag esand warning/ indic ator lam ps

Au
tomatic drivin glights ........... ...............116
Au tomatic engine star t(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> .......142
Au tomatic engine sto p(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> .......142
Au tomatic fron tpass engerfr on tair‐
bag shutoff <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 42,44
Fu nctio nof theaut omatic front
passeng erfront airbag shutoff......... ..... 42
PA SSENGER AIRBAGind icat orlam p.....4 4
Au tomatic fron tpass engerfr on tair‐
bag shutoff
see Automatic front pass engerfront
airb agshut off
Au tomatic lateral supp ortadjus tment
Se tting ........... ................................. .......92
Au tomatic mirrorfo lding function
Ac tivati ng/d eactiv ating ........... ............126
Au tomatic trans mis sion
Dou ble-cl utchfu nctio n........... ..............151
Dr ive pr ogr am disp lay ............ ............ ..148
Dr ive pr ogr ams............ ........................ 147
DY NA MIC SELE CTswitc h..................... 147 E-SELEC
Tsel ect orleve r..... .................. 149
Eng aging drive po sitio n............. ........... 151
Eng aging neu tral ............. .....................150
Eng aging park position .................. ...... 150
Eng aging reve rsege ar .................... .....1 50
Kic kdo wn ....... ......................................153
Manual gearshif ting.............................1 51
Oil temp eratur e(on- boar dcom puter,
Pe rfor mance menu) ............................. 230
St eer ing wheel paddle shifters ............. 151
Tr ans miss ionposit iondispla y........ ...... 149
Tr ans miss ionposit ions........................ 149 B
Bag hook<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 102
BA S(Br akeAssis tSy stem) .....................1 66
Batt ery
Cha rging (Remo teOnline) .................... 137
Smar tKey <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 65
Batt ery
see Battery(v ehi cle)
Batt ery(v ehi cle) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 377
Char ging........................................ ...... 376
No tes ................................................... 372 No
tes(s ta rting assis tance and
ch argin g) .............................................. 374
Re placing .............................................3 77
St artin gassis tance <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ......376
Bel t
see Seatbel t
Bli nd Spo tAs sist <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 218
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>218
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 220
Sy stem limit ations ...............................2 18
Blo wer
see Clima tecontr ol
Blue tooth®
<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 259
Ac tivati ng/d eactiv ating ........... ............259
Inf ormatio n....... ................................... 259
Blue tooth®
audio
Ac tivati ng ........... ................................. 337
De-a uthor izing (de-r egiste ring) the
de vice .................................................. 337
Inf ormation .......................................... 335
Ov ervie w .............................................3 35
Sear ching fora trac k ..... ...................... 337
Sear ching forand author izing the
de vice .................................................. 336 492
Index