Locking/u
nlockingcentr ally You
canstart ,loc ko runlo ckthev ehicle usin g
KE YLE SS-GO .Tod othis, you onlyneedc arry
th eS martKey with you.Youcancom bine the
fun ction sofKEYLESS -GO with those ofac on-
ven tional SmartKey. Unloc kthe veh icle by
usin gKEYLESS -GO ,for ins tan ce, and lockit
usin gthe 0037 buttonontheS martKey.
The driver'sd oor and thed oor atwhic hthe
han dleisused, mustbothbeclosed. The
Sm artKey must beouts idethev ehicle .When
loc kin go runlo cking with KEYLE SS-GO ,the
dist ancebetween thek eyand thec orres pon d-
ing door handlemust notbegreat erthan 3ft
(1 m).
Ac heck whic hperio dicall yestablishe saradio
con nectionb etween thev ehicle and the
Sm artKey determ inesw hether avalid Smart-
Key isin thev ehicle .This occ urs, forexam ple:
R when start ing thee ngine
R while driving
R when thee xtern aldoor handles aretouche d X
To unlock thev ehicl e:touch thei nn er sur-
fac eo fthe door handle.
X To lock thev ehicl e:touch sensor sur-
fac e0043 or0044.
Mak esure that you donot touch thei nn er
surf ace ofthed oor handle.
X Convenien ceclosing feature: touch
rec esse dsensor surf ace 0044for anext end ed
perio d.
Fur ther inform ationonthe con venience
clo singfeat ure (Ypage 77).
Deact ivatingand activat ing If
you donot intend touse aSmartKey foran
ext end edperio doftim e,you can deac tivate
th eK EYLESS -GO function ofthek ey. The Sm
artKey willthen use verylittle power ,
th ereb yconser vingb attery power .For thep ur-
poses ofact ivat ion/de activat ion,the veh icle
must notbenear by.
X To dea ctiv ate: pres sthe 0037 buttonon
th eS martKey twiceinr apid successio n.
The batterychecklamp (Ypage 69)ofthe
Sm artKey flash estwic ebrief lyand light sup
onc e,then KEYLE SS-GO isdeac tivated .
X To act ivat e:pres sany butt onontheS mart-
Key.
or X Inser tthe Sm artKey intot he ignitio nlock.
KE YLE SS-GO andallofits assoc iatedfea-
tur es are available again. Cha
nging thes ettings ofthel ocking
syst em
You canchan gethes ettin gs ofthel oc kin g
syst em. This mean sonlyt he driv er'sd oor ,the
lock able stowage compartmen tsinthev ehicle
int erio rand thef uel filler flapareunlo cked
when thev ehicle isunlo cked. This isusef ulif
you frequen tlytravel alone.
X To cha nge thes etting: pressand hold
down the0036 and0037 buttons simult ane-
ously forabout sixsec ond suntilth eb attery
indi catorlamp (Ypage 69)flash estwic e.
If th es ettin go fthe lockin gsyst em ischan ged
with inthes ign alran geofthev ehicle ,pres sing
th e0037 or0036 button:
R lock sor
R unlo ckst he veh icle
The SmartKey now function sasfollo ws:
X To unlock :pres sthe 0036 buttononc e.
X To unlock centrally:pres sthe 0036 button
twic e.
X To lock centr ally:pres sthe 0037 button.
The KEYLE SS-GO function ischan gedasfol-
lows:
X To unlock thed river 'sdoor :to uch the
inn ersurf ace ofthed oor handleonthed riv-
er' sd oor .
X To unlock centrally:to uch thei nn er sur-
fac eo fthe driv eror fro nt-pas senger door
han dle.
X To lock centr ally:to uch theo uter sen sor
surf ace onone ofthed oor handles. Sm
artKey
67Openingand closing Z
X
To res tore thefactory settin gs:pre ssand
hol dd ownthe 0036 and0037 buttons
si mu ltaneou slyf or appro xima telys ixsec-
ond suntilthe battery checklamp
(Y page 69)flashe stwice. Mec
hani calkey
Gen eral notes If
the vehiclec an no longer belocked or
unl ocke dwitht he Sma rtKey orwith KEYL ESS-
GO ,use the mech anical key.
If yo uu sethe mech anical key tounl ock and
op en the driver 'sdo or orthe trunk lid, the
anti -thef talarm system willbe trig gered.
Swi tch offthe alarm (Ypage 64).
Remo ving the mec hani calkey X
Pu sh release catch 0043inthe directi onofthe
arr ow and atthe same time remove
mech anical key 0044from theSma rtKey .
For further informa tiona bout:
R unl ocki ngthe driver's door (Y page 73)
R unl ocki ngthe trunk (Ypage 74)
R locking thevehicle( Ypa ge73)
In se rtin gthe mec hani calkey X
Pu sh mech anical key 0044comp letel yinto the
Sma rtKey untilite nga ges and release
catch 0043isba ck inits basicp osition. SmartK
eybatte ry
Impo rtant safetynotes G
WAR
NING
Batte riesc onta intoxi cand corr osive sub-
sta nces. Ifba tteri esare swallo we d,itcan
res ulti ns evere healthpro blems .The re isa
ris ko ffata linju ry.
Kee pbatteri esouto fthe rea chofchi ldren.
If ab attery issw allo we d,see km edica l
atte ntionimm ediatel y. H
En
viron men talnote Batte
riesc onta inpo lluta nts.
It is ille ga ltod ispo se of
them with the household
ru bb ish. The ym ustb ec ol-
le cted separatelya nd dis-
po sed ofinan envi ronme n-
tal lyres ponsi bler ecy cling
sy stem . Disp
oseofbatteri esinan
envi ronme ntallyres ponsi ble
ma nner. Take discha rged
ba tteri estoaq ualifi ed spe -
cia list wo rksh oportoac ol-
le ctio npoint for used bat-
teri es.
The Sma rtKey batteri esconta inpe rchl orate
ma teri al,w hich ma yrequire spe cialhan dling
and regard forthe envi ronme nt.National
gu ideline sm ustb eo bserved during dispo sal.
In Ca liforni a,see www.dts c.ca.go v/
Hazardo usWaste/Perc hlorate/ index .cfm .
Mer cedes-Be nzreco mme ndsthatyou have
the batteri esrep laced ataq ualifi ed spe cialist
wo rksh op. 68
SmartKe
yOpening and clos ing
Check
ingtheb atter y X
Pre ssthe0037 or0036 button.
The battery iswork ingproperl yifb atte ry
ch eck lamp 0043light supb riefly.
The battery isdisc harg edifbat tery check
lamp 0043does notlight upbrie fly.
X Chan getheb atte ry (Y page 69).
If th eS martKey battery isch eck edwithin the
sign alrec ept ion rangeofthev ehicle ,pres sing
th e0037 or0036 button:
R loc ksor
R unlo ckst he veh icle
i You
cangetabatte ry at any qualif iedspe-
ciali stwork shop.
Rep lacin gthe bat tery You
requi reaC R2 0253V cellbatte ry.
X Tak ethe mec hanical keyo utoftheS mart-
Key (Ypage 68). X
Pre ssmec hanical key0044 intot he Sm artKey
open inginthed irection ofthea rrow until
bat tery com partmen tcover 0043 open s.Do
no th old battery com partmen tcover 0043
clo sed while doingso.
X Remo vebat tery com partmen tcover 0043. X
Repeat edlytaptheS martKey again styour
palm untilbat tery 0087 falls out.
X Inser tthe newb atte ry wit hthe posi tivet er-
min alfac ing upward s.Use alint-fr ee cloth
to do so.
X Mak esure that thes urface oftheb atte ry is
fr ee oflint,gre ase and other contam inan ts.
X Inser tthe fron ttab so fbatte ry com partmen t
cov er0043 intot he hous ingand then pres sto
clo seit.
X Inser tm echan ical key0044 intot he Sm artKey
(Y page 68).
X Chec kthe fun ction ofall Sm artKey buttons
on thev ehicle . Sm
artKey
69Opening andclosing Z
Problems
withtheSmar tKey Problem
Possible
causes/co nsequences and0050 0050
Solutions You
cannolonger lock
or unlock thevehicle
using theSmartK ey. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69).
If this does notwork:
X Unlock (Ypage 73)orlock (Ypage 73)thevehicle usingthe
mechanical key. There
isinterf erence fromapowerful sourceofradio waves.
X Unlock (Ypage 73)orlock (Ypage 73)thevehicle usingthe
mechanical key. The
SmartK eyisfaulty.
X Unlock (Ypage 73)orlock (Ypage 73)thevehicle usingthe
mechanical key.
X Have theSmartK eycheck edataq uali fied specialist workshop. You
cannolonger lock
or unlock thevehicle
using KEYLE SS-GO. KEYLE
SS-GO was deactivated.
X Reactivate KEYLESS-GO (Ypage 66). The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69).
If this does notwork:
X Unlock (Ypage 73)orlock (Ypage 73)thevehicle usingthe
mechanical key. There
isinterf erence fromapowerful sourceofradio waves.
X Unlock (Ypage 73)orlock (Ypage 73)thevehicle usingthe
mechanical key. KEYLE
SS-GO ismalfunction ing.
X Lock/ unlock thevehicle usingtheremote controlfunct ionofthe
SmartK ey.
X Have thevehicle andSmartK eycheck edataq uali fied specialist
workshop.
If the vehicle canalso notbelocked/unlock edusing theremote
cont rolfunct ion:
X Unlock (Ypage 73)orlock (Ypage 73)thevehicle usingthe
mechanical key.
X Have thevehicle andSmartK eycheck edataq uali fied specialist
workshop. 70
Smar
tKeyOpening andclosing
Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine cannot be
started usingtheSmart-
Key. The
on-board voltageistoo low.
X Switch offnon- essential consumers, e.g.seat heating orinterior
lighting, andtrytostart theengine again.
If this does notwork:
X Check thestarter battery andcharge itifnecessary
(Y page 260).
or
X Jump-start thevehicle (Ypage 261).
or
X Consult aquali fied specialist workshop. The
engine cannot be
started usingKEYLE SS-
GO. TheSmartK eyisin
the vehicle. The
vehicle islocked.
X Unlock thevehicle andtrytostart thevehicle again. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69).
If this does notwork:
X Start yourvehicle withtheSmartK eyinthe ignition lock. There
isinterf erence fromapowerful sourceofradio waves.
X Start yourvehicle withtheSmartK eyinthe ignition lock. You
have lostaSmart-
Key. X
Have theSmartK eydeactivated ataq ualified specialist work-
shop.
X Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. You
have lostthe
mechanical key. X
Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. The
side windows can-
not beopened orclosed
using theconven ience
opening/c losingfea-
ture. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69). Doo
rs Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment Additionally,
childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005D
R start theengine
There isar isk ofan accident andinjury. Doo
rs
71Opening andclosing
Z
Never
leavechildren oranimal sunattended
in the vehicle.
When leavingthe vehicle, always take the
SmartKey withyouand lock thevehicle. This
also appliesforthe Digital Vehicle Keyifthe
"Digital Vehicle Key"function isactivated via
Mercedes meconnect . Unlo
cking andopeni ngdoors from
the inside
! The
side window swilln ot open/close if
the battery isdischarge dorift he side win-
dows haveicedup.Itwil lthen notbepossi-
ble toclose thedoor. Donot attempt to
force thedoor closed. Youcould otherwise
dama gethe door orthe side window .
You canopen adoor from inside thevehicle
even ifit has been locked.
If the vehicle haspreviou slybeen locked from
the outside ,opening adoor from theinside
wil ltrigger theanti-theft alarm system. Switch
off the alarm (Ypage 64). X
Pull door handle 0044.
If the door islocked, lockingknob0043pops
up. The door isunlocked andcanbe
opened.
When adoor isopened, theside window on
that side opens slightly .When thedoor is
closed, theside window closesagain. Cen
trally locking andunloc kingthe
vehic lefrom theinside
You cancentrally lockorunlock thevehicle
from theinside. Forexample ,you can unlock the
front- passe ngerdoor from theinside or
lock thevehicle beforeyoupullawa y. X
To unloc k:press button 0043.
X To loc k:press button 0044.
If the front- passenger doorisclosed, the
vehicle locks.
The central locking buttondoesnotlock or
unlock thefuel fillerflap orthe stowage com-
partment inthe center console.
You cannot unlockthevehicle centrally from
the inside ifthe vehicle hasbeen locked with
the SmartKey orKEYLESS- GO.
You canopen adoor from inside thevehicle
even ifit has been locked.
If al ocked doorisopened fromtheinside, the
previou sunlock status ofthe vehicle willbe
taken intoconsideration if:
R the vehicle waslocked usingthelocking
button forthe central locking, or
R ifthe vehicle waslocked automa tically
The vehicle willbef ullyu nlocked ifit had pre-
viousl ybeen fullyunlocked. Ifonly thedriver's
door hadbeen previou slyunlocked, onlythe
door which hasbeen opened fromtheinside is
unlocked. 72
Do
orsOpeni ngand closi ng
Aut
oma ticl ocki ngfea ture X
To dea ctivate: pressand hold button0043 for
about fives econ ds unt ilat ones oun ds.
X To act ivate: pressand hold button0044 for
about fives econ ds unt ilat ones oun ds.
If you pressoneo fthe two buttons and donot
hear atone,ther elevan tsetting has already
been selected.
The vehiclei sloc keda uto mat icallywhen the
ign ition isswit ched on and thew hee lsare
tur nin g.
You could there foreloc ky ours elfout if:
R thev ehiclei sb ein gp ush ed.
R thev ehiclei sb ein gtow ed.
R thev ehiclei so nar oller dyn amom eter.
You canalso switchthea uto mat icloc king
fun ction onand offusin gthe on-board com-
put er(Y page 179). Unlock
ing/lockingthe driver 'sdoor
usi ng them echa nica lkey
i If
you want tocentrally lockthe veh icle
usin gthe mec hanical key,begi nbypressi ng
th el oc king but tonf or thei nteri or loc king
mec hanism while thed river 'sdoor isopen .
The nlockt he driver 'sdoor usingthe
mec hanical key. X
To unl ock: turnthe mec hanical keyc oun-
te r-clo ckwise asfar asitwill gotopos ition
0047.
X To lock: turnthe mec hanical keyc lock wise
as far asitwill gotopos ition 0047.
If you usethem echan ical keyt ou nloc ka nd
open thed river 'sdoor ,the ant i-thef talarm
syst emwill betrigge red.Switcho ffthea larm
(Y page 64). Tr
unk Imp
ortant safety notes G
WAR
NING
If obj ects,luggag eorloads arenotsecured
or notsecured sufficien tly, they could slip,
ti po vero rb eflun garou ndand there byhit
veh icleo ccup ant s.The reisar isko finjury,
part icularly inthee vent ofsudd enbrak ing
or as udd enchang eind irec tion .
Alw ays store objects so that they can notb e
flun garou nd.S ecureo bjec ts,luggag eor
loads againstslip pingo rtippin gb efore the
jo urn ey.
! The
trunk lidswin gsupwar dswhen
open ed.Therefore ,makes uret hatthe re is
suf ficien tclearan ceabov ethe trunk lid.
! On
lyclo sethet runk once ther oofisl ow-
ere dcom pletely. Other wise ,you could dam-
age ther oof.
If you closethet runk lidbef ore ther oofis
lower edcomple tely, thel oadi ngaid swit ch
ligh tsup and awarning tone soun ds. Tr
unk
73Opening andclosing Z
The
opening dimensions ofthe trunk lidcan be
found inthe "Vehicle data"section
(Y page 305).
Do not leave theSmart Keyinthe trunk .You
could otherwise lockyourself out.
The trunk lidcan be:
R opened/c losedfromoutside
R opened automatically fromoutside
R locked separately
R opened withtheemergenc yrelease button
R unlocked withthemechanic alkey
You should preferably placeluggage orloads
in the trunk . Opening/clo
singfrom outside
Opening X
Press the0036 button onthe Smart Key.
X Pull handle 0043.
X Lift the trunk lid.
Closing X
Pull thetrunk liddown usingrecess 0043.
X Lock thevehicle ifnecessary withthe0037
button onthe Smart Keyorwith KEYLE SS-
GO.
It does notlock ifaS mart Keywith KEYLE SS-
GO isdetect edinthe trunk . Locking
thetrunk separ ately
You canlock thetrunk separately. Ifyou then
unlock thevehicle centrally, thetrunk remains
locked andcann otbe opened.
X Close thetrunk lid.
X Take themechanic alkey outofthe Smart -
Key (Ypage 68). X
Insert themechanic alkey into thetrunk lid
lock asfar asitwill go.
X Turn themechanic alkey clock wisefrom
position 0047toposition 0048.
X Remove themechanic alkey.
X Insert themechanic alkey into theSmart -
Key. Unlocking
thetrunk (mechanical
key)
! The
trunk lidswings upwards when
opened. Therefore, makesurethatthere is
sufficient clearance abovethetrunk lid.
If the trunk cannotbe unlocked withthe
Smart KeyorKEYLE SS-GO, usethemechanic al
key.
If you usethemechanic alkey tounlock and
open thetrunk lid,the anti- theft alarm system
will betriggered. Switchoffthe alarm
(Y page 64). 74
Tr
unkOpening andclosing