key MERCEDES-BENZ SLC 2020 User Guide

Panic
alarm X
To activate: press0033button 0043for at
least onesecond.
Av isual andaudib lealarm istriggered ifthe
alarm system isarmed.
X To deactivat e:press 0033button 0043again.
or X Insert theSmartK eyinto theignition lock.
or X Press theKEYLE SS-GO Start /Stopbutton.
The KEYLE SS-GO key must beinthe vehicle. Occupant
safety Introduct
iontothe restr aintsystem
The restraint systemcanreduce therisk of
vehicle occupants comingintocontactwith
parts ofthe vehicle's interiorinthe event ofan
accident. Inthe event ofan accident, the
restraint systemcanalso reduce theforces to
which thevehicle occupants aresubjected.
The restraint systemincludes thefollowing
componen ts:
R Seat beltsystem
R Air bags
The componen tsof the restraint systemwork
in conj unction witheach other. Theycanonly
deploy theirprotect ivefunct ionif,at all times,
all vehicle occupants:
R have fastened theirseatbelts correct ly
(Y page 41)
R have theseat andhead restraint adjusted
properly (Ypage 85)
As the driver, youalso have tomake surethat
the steering wheelisadjusted correctly. Observe
theinformation relatingtothe correct
driver's seatposition (Ypage 85).
You also have tomake surethatanair bag can
inflate properly ifdeploye d(Ypage 43).
An airbag supplements acorrect lyworn seat
belt. Asanadditional safetydevice, theairbag
increases thelevel ofprotect ionforvehicle
occupants inthe event ofan accident. For
example, if,inthe event ofan accident, the
protect ionoffered bythe seat beltissufficient,
the airbags arenot deploye d.When anacci-
dent occurs, onlytheairbags thatincrease
protect ioninthat particular accidentsituation
are deploye d.However, seatbelts andairbags
generally donot protect againstobjectspene-
tratin gthe vehicle fromtheoutside.
Inform ationonrestraint systemoperation can
be found under "Triggering ofthe Emergen cy
Tensioning Devicesandairbags"
(Y page 50).
See "Chil dren inthe vehicle" forinformation
on children traveling withyouinthe vehicle as
well ason child restraint systems
(Y page 53). Import
antsafety notes G
WARNING
Modifications tothe restraint systemmay
cause itto no longer workasinten ded.The
restraint systemmaythen notperform its
inten dedprotect ivefunct ionand may failin
an accident ortrigger unexpect edly,for
example. Thisposes anincreased riskof
injury oreven fatalinjury.
Never modify partsofthe restraint system.
Never tamper withthewiring, theelectron ic
componen tsor their software.
If it is necessary tomodify componen tsof the
restraint systemtoaccommodate aperson
with disabil ities,contactanauthorized
Mercedes-B enzCenter fordetails. USAonly:
for further information contactour Customer
Assistanc eCenter at1-80 0FOR-MERCED ES
(1‑800‑36 7‑6372).
Mercedes-B enzrecommen dsthat youonly use
driving aidswhich havebeen approved specifi-
cally foryour vehicle byMercedes-B enz. 38
Occ
upantsafetySafety

If
ac hild younger thantwelve yearsold and
under 5ft(1.5 0m )inh eight istravelin gint he
vehic le:
R always securethe child inac hild restraint
syst emsuitable forthis Merc edes- Benz
vehic le.The child restraint systemmust be
appropr iatetothe age, weight andsize of
the child.
R always observethe instruct ions andsafet y
not eson "Children inthe vehic le"
(Y page 53)inaddition tothe child
rest raint systemmanuf acturer' sinst allation
and operat inginst ruct ions
R always observethe instruct ions andsafet y
not eson the "Occ upant Classific ationSys-
tem (OCS)" (Ypage 46) G
WARN
ING
Seat belts maynotbeable toperf orm their
prot ective func tion inthe followin gsitua-
tion s,in part icular:
R The seat beltisdamaged, modified,
ext reme lydirt y,bleache dordyed
R The seat beltbuck leisdamaged or
ext reme lydirt y
R Modific ationshave been performe donthe
Em ergen cyTens ionin gDevice, belt
anc horage oriner tiareel
Seat belts maybedamaged inan acc ident ,
althoug hthe damage maynotbevisible, e.g.
due tosplint ersofglass. Modifie dordam-
aged seatbelts maytearorfail, e.g. inan
acc ident .Modifie dEmergen cyTens ionin g
Dev ices could accident allytrigger ornot
func tion asintended .This poses an
inc reased riskofinjury oreven fatalinj ury.
Never modifythe seat belts ,Eme rgen cyTen-
sion ingDev ices, beltanchorage soriner tia
reels. Make surethattheseat belts are
undamage d,not worn outand clean .Have
the seat belts checkedimmed iatelyata
qualified specialist workshop afteran acc i-
dent .
Only useseat belts thathave been approv ed
for your vehic leby Merc edes- Benz. Prop
eruse ofthes eat belts Obser
vethe safet ynotes on the seat belt
(Y page 40).
Ev ery vehic leocc upant mustobservethe fol-
lowing notestoens ure aproper lyworn seat
belt canprov idefull prot ection. Also make
sure thatallvehic leocc upant sarealways
wearing theseat beltcorrectlywhile thevehi-
cle isin mot ion.
When fastenin gthe seat belt, always make
sure that:
R the seat beltbuck leton gue isinse rted only
int ot he belt buck lebelon gingtothat seat
R the seat beltispulled tightacro ssyour body
Av oid wearin gbulky clothing ,e.g. aw inter
coat .
R the seat beltisnot twist ed
Only thencan the forces which occurbe dis-
tr ibuted overthearea ofthe belt.
R the shoulder sectionofthe belt isrout ed
acro ssthe centerofyour shoulder
The shoulder sectionofthe seat beltshould
not touc hyour neckorberout edunder your
arm orbehin dyour back .
R the lapbelt istaut andpasses acrossyour
lap aslow down aspossible
The lapbelt must always berout edacro ss
your hipjointsand notacro ssyour abdo-
men .This applies particularly topregn ant
women .Ifn ecessary, pushthelapbelt down
to your hipjointand pull ittigh tusing the
shoulder sectionofthe belt.
R the seat beltisnot rout edacro sssharp,
point edorfragile objects
If you have such itemslocat edon orinyour
clot hing ,e.g. pens ,keys oreyeglasses ,
sto rethe seinas uitable place.
R only oneperso nisu sing aseat belt
Inf ant sand childr enmust nevertravel sit-
tin go nthe lap ofav ehic leocc upant .Int he
even tofana ccident ,the yc ould becrus hed
betwee nthe vehic leocc upant andseat belt.
R obje ctsa renev ersecur edwith aseat belt if
the seat beltisalso being usedbyone of
the vehic le'soccupant s
Also ensure that thereare neverobje cts
betwee napersonand the seat, e.g.cush-
ions .
Seat belts areonly intended tosecur eand
rest rain vehic leocc upant s.Always observethe
not esinthe "Stowage options/com partmen ts" Occupa
ntsaf ety
41Safety Z

seat
belt, ahead bagmay bedeploy edinother
accident situations (Ypage 50).
The head bagonthe front -passenger side
deploy sunder thefollowi ngconditions:
R the OCS system detects thatthefront -
passenger seatisoccupied or
R the seat beltbuckle tongue isengaged in
the belt buckle ofthe front -passenger seat
If the belt tongue isengaged inthe belt
buckle, thehead bagonthe front -passenger
side deploy sifa na ppropria teaccident situa-
tion occurs. Inthis case, deploy mentisinde-
pendent ofwhether thefront -passenger seatis
occupied ornot. Occupant
ClassificationSystem
(OCS)
Introduction The
Occupant Classification System(OCS)cat-
egorizes theperson inthe front -passenger
seat. Depending onthat result, thefront -
passenger frontairbag and front -passenger
knee bagareeither enabled ordeactivated.
The system doesnotdeactivate:
R the side impact airbag
R the headba g
R the Emergenc yTensioning Devices
Requirements To
be classified correctly,the front passenger
must sit:
R with theseat beltfastened correctly
R in an almost upright position withtheir back
agai nstthe seat backrest
R with their feetresting onthe floor, ifpossi-
ble
If the front passenger doesnotobserve these
conditions, OCSmayproduce afalse classifi-
cation, e.g.because thefront passenger:
R transfers theirweight bysupporting them-
selves onavehicle armrest
R sits insuch awaythat their weight israised
from theseat cushion
If you install achild restraint systemonthe
front -passenger seat,besure toobserve the
correct positioning ofthe child restraint sys-
tem. Never placeobjects underorbehind the child
restraint system,e.g.acushion. The
entire baseofthe child restraint systemmust
alwa ysrest onthe seat cushion ofthe front -
passenger seat.Thebackrest ofthe forward-
facing childrestraint systemmustlieasflat as
possible againstthe backrest ofthe front -
passenger seat.
The child restraint systemmustnottouch the
roof orbe subjected toaload bythe head
restraint. Adjusttheangle ofthe seat backrest
and thehead restraint positionaccordingly.
Only thencanOCS beguara nteed tofunction
correct ly.Always observe thechild restraint
system manufacturer's installationandoperat-
ing instruct ions.
Occupant ClassificationSystem opera-
tion (OCS) 0043
PASSE NGERAIRBAG ONindicator lamp
0044 PASSE NGERAIRBAG OFFindicator lamp
The indicator lampsinform youwhether the
front -passenger frontairbag isdeactivated or
enabled.
X Press theStart/ Stopbutton onceortwice,
or turn theSmartKey toposition 0047or0048 in
the ignition lock.
The system carriesout<00560048004F004900100047004C0044004A0051005200560057004C00460056
0011[
The PASSE NGERAIRBAG OFFand
PASSE NGERAIRBAG ONindicator lampsmust
light upsimultaneousl yfor approximately six
seconds.
Then theindicator lampsdisplaythe status of
the front -passenger frontairbag:
R PASSE NGERAIRBAG ONlights upfor
60 seconds, subsequentlybothindicator
lamps areoff(PASSE NGERAIRBAG ONand 46
Occ
upant safetySafety

G
WARNING
If child renareleft unsu pervi sedinthe vehi-
cle, they could,inparticu lar:
R Open doors, thereby endange ringother
perso nsorroad users
R Get outand bestruck byoncoming traffic
R Opera tevehicl eequipme ntand become
trappe d,for exampl e
In add ition, childrencoul dsetthe vehicl ein
motion, forexampl e,ifthey:
R Rel ease theparki ngbrake.
R Cha nge thetransmissi onposi tion
R Start thevehicl e
There isar isk ofaccide ntand injury .
Never leavechild renunsu pervi sedinthe
vehicl e.
When leaving thevehicl e,alw ayst ake the
SmartKey withyouand lock thevehicl e.
Keep theSmartKey outofthe reach ofchil-
dren. G
WARNING
If perso ns,particu larlychild ren aresubjec-
ted toprolo nged exposu reto extreme heat
or cold, there isar isk ofinjury ,possi bly
even fatal.Never leavechild renunattended
in the vehicl e. G
WARNING
If the child restrai ntsystem issub jected to
dire ctsunli ght,parts maygetvery hot.Chil-
dren mayburn themsel vesonthese parts,
particu larlyonthe metal partsofthe child
restrai ntsystem. Thereisar isk ofinjury .
If you leavethe vehicl e,taking thechild with
you ,alway se nsure thatthechild restrai nt
system isnot expose dtod irectsunli ght.
Protect itwith ablanket, forexampl e.Ifthe
child restrai ntsystem hasbeen expose dto
dire ctsunli ght,letitcool downbefore secur-
ing the child init. Never leavechild renunat-
tended inthe vehicl e.
Alwa ysensure thatallvehicl eoccupa ntshave
their seatbeltsfastened correctly andaresit- ting
prope rly.P articu larattention mustbepaid
to child ren.
Observe thesafety notesonthe seat belt
(Y pag e40)and thenotes oncorrect useof
seat belts(Y pag e41).
Ab ooster seatmaybenecessa ryto achie ve
prope rseat beltposi tioning forchild renover
40 lbs (18 kg)until theyreach aheightwhere
at hree-poi ntseat beltcan be prope rlyfas-
tened withoutab ooster seat. Spec
ialseatbe ltretractor G
WARNING
If the seat beltisr ele ased whiledrivi ng,the
child restrai ntsystem willnol onger be
secure dprope rly.The speci alseat belt
retractor isdisa bleda nd the inertia real
draw sinap ortion ofthe seat belt.The seat
bel tcannot beimmed iatelyrefastene d.
There isan increas edrisk ofinjury ,possi bly
even fatal.
Stop thevehicl eimmed iately,pay ing atten-
tion toroad andtraffic conditions. Reacti-
vate thespeci alseat beltretractor and
secure thechild restrai ntsystem properly.
The seat beltonthe front-passenge r'sside is
equ ipped with aspeci alseat beltretractor.
When activated,thespeci alseat beltretractor
ensure sthat the seat beltcannot slacken once
the child seatissecure d.
Install ingachild restrai ntsystem:
X Make sureyouobser vethe child restrai nt
system manufacturer's installationinstruc-
tions.
X Pul lthe seat beltsmoothly outofthe belt
loop .
X Engage seatbelttongue inbel tbuckle .
Activating thespeci alseat beltretractor:
X Pul lthe seat beltoutfull yand let the inertia
reel retract itaga in.
Whil ethe seat beltisr etracting, youshou ld
hear aratcheting sound.The speci alseat
bel tretractor isenabl ed.
X Push thechild restrai ntsystem downsothat
the seat beltist ight anddoes notloos en. 54
Chi
ldren inthe vehi cleSafety

tics
.Havet he bra kesyste mc hecked ata
qu alifi ed speci alistw orksh op.
Ob serve inform ation reg arding indicator and
wa rning lamps (Ypage 211 )asw ella sd ispl ay
mes sage s(Ypa ge186 ). AD
APTIVE BRAKE
i Ob
serve the "Impo rtantsafety note s"sec-
tio n(Ypa ge 57).
ADAPT IVEBRAKE enhance sbraking safety and
off ers incr easedb raking comf ort.Inadditio n
to the braking functio n,ADAPT IVEBRAKE also
ha st he HOLD functio n(Ypa ge 152) andhill
sta rtas sist (Y page 120 ). Pro
tectiona gainst the ft Immo
bilizer
X To activ ate with the SmartK ey:rem ove
the Sma rtKeyfromt heigniti onlock.
X To activ ate with KEYLES S-G O:switch the
ig niti onoff and open the driver 'sdo or.
X To dea ctivate :sw itch onthe igniti on.
The immob ilize rprevents your veh iclef rom
be ing started withou tthe corr ectSma rtKey.
Wh enleav ing the vehicle, alwa ystake the
Sma rtKeywithy ou and lock the vehicle. The
eng inecan bestarted byany one with av alid
Sma rtKeythatisl efti ns idet he veh icle.
i The
immob ilize risa lway sd eacti vated
wh en yous tart the engine.
In the eventtha tthe eng inecann otbe star-
ted (yet the vehicle'sb attery ischa rged),
the syste misnotopera tional .Contact an
au thor izedM erced es-Benz Center orcal l
1-800 -FOR-MER Cedes(in the USA) or
1-800-38 7-0100(inC anad a). ATA
(anti-the ftalarm system) X
To arm: lock the vehiclew itht he Sma rtKey
or KEYL ESS-GO .
Indi cato rlam p0043 flashe s.The alarm system
is arm edafte rapproxima tely1 5s eco nds.
X To switcho ff:unl ock thevehiclew itht he
Sma rtKey orKEYL ESS-GO .
Av isua land audiblea larm istrig geredifthe
al arm system isarm edand youo pen:
R ad oor
R the vehiclew itht he mech anical key
R the trunk lid
R the hood
R the glove comp artment
R the stow ages pace und erthe arm rest
X To
sto pthe alarm with the SmartK ey:
pre ssthe 0036 or0037 button onthe
Sma rtKey .
The alarm isstop ped.
or
X Inse rtthe Sma rtKey intotheigniti onlock.
The alarm isstop ped.
X To
sto pthe alarm using KEYLES S-GO :
gra spthe outsid edoorh andle. The Sma rt-
Key mustbe outsid ethe veh icle.
The alarm isstop ped.
or
X Pre ssthe Start/ Stopbutton onthe dash-
bo ard .The Sma rtKey mustbe insidet he
veh icle.
The alarm isstop ped.
The alarm isnot stop ped, eve nifyou closethe
op en door tha ttrig ger edit,for exa mpl e.
If the alarm stayson for more than
30 seco nds,the Mer cedesme conne ct
eme rgency callsystem automa ticallys end s
am essage tothe Custom erCe nter. 64
Pro
tectiona gainstthef tSafe ty

Smar
tKey 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 transmissionoutof
park position 005D
R start theengine
There isar isk ofan accident andinjury.
Never leavechildren oranimals unattended
in the vehicle.
When leaving thevehicle, alwaystake the
SmartK eywith youand lock thevehicle. This
also applie sfor the Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect. G
WARNING
If you attach heavyorlarge object stot he
SmartK ey,the SmartK eycould beuninten -
tionally turnedinthe ignition lock.This
could cause theengine tobe switched off.
There isar isk ofan accident.
Do not attach anyheavy orlarge object sto
the SmartK ey.Remove anybulky keyrings
before insertin gthe SmartK eyinto theigni-
tion lock.
! Keep
theSmartK eyaway fromstrongmag-
netic fields. Otherwise, theremote control
funct ioncould beaffected.
Str ong magnetic fieldscanoccur inthe
vicinity ofpowerful electrical installations.
Do not keep theSmartK ey:
R with electron icdevices, e.g.amobile phone
or another SmartKey
R with metallic objects,e.g. coins ormetal foil
R inside metallic objects,e.g. ametal case
This canaffect thefunct ionality ofthe
SmartK ey. Smar
tKeyfunctions 0043
0037 Locks thevehicle
0044 0054 Unlock sthe trunk lid
0087 0036 Unlock sthe vehicle
X To unlock centrally: pressthe0036 but-
ton.
If you donot open thevehicle withinapprox-
imately 40seconds ofunlocking:
R the vehicle islocked again.
R anti-t heftprotect ionisreactivated
X To lock centrally: pressthe0037 button.
The SmartK eycent rally locks/un locks:
R the doors
R the trunk lid
R the stowage compartmen tint he cent ercon-
sole
R the fuel filler flap
The turn signals flashonce when unlocking
and three times whenlocking.
You canalso setanaudib lesignal toconfirm
that thevehicle hasbeen locked. Theaudib le
signal canbeactivated anddeactivated using
the on-board computer (Ypage 179).
When itis dark, thesurround lightingalso
comes onifit is activated inthe on-board
computer (Ypage 178). KEY
LESS-GO
General notes Bear
inmind thattheengine canbestarted by
any ofthe vehicle occupants ifthere isaK EY-
LES S-GO keyinthe vehicle (Ypage 120). 66
Smar
tKeyOpening andclosing

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