
SmartKey
Overvie wofkeyfunctions
&
WARNING ‑Danger of accident or injury
if ch ildren ar eleftu nat tende dint hevehi‐
cle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
Rope ndoors,t hereb yendangering other
persons or road users.
Rge to utofthev ehicle and be hit by
oncoming traf fic.
Rope rate ve hicle equipment.
Moreo ver,ch ildren could also se tthe vehicle
in motion by,for example:
Rreleasing thep arking brake.
Rshifting thea utomatic transmission out of
par kposition P jor shifting manual
transmission int oidle position.
Rstartin gthe engine.
#Ne verlea ve children and animals unat‐
te nde dint hevehicle.
#When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle.
#Ke ep thev ehicle keyo ut of ther eac hof
ch ildren.
* NO
TEDama getothek eycaused by
magnetic fields
#Ke ep thek eyaway from strong mag‐
netic fields.1Loc ks
2Batter ychec klamp
3Unloc ks
4Opens/closes thet runk lid
5Pa nic alarm
The keyloc ks and unlo ckst he following compo‐
nents:
RThe doors
RThe trunk lid
RThe fuel filler flap
Opening and closing 55

Ifyo udon otopen thev ehicle within appr ox‐
imatel y40seconds af teru nlocking:
RThe vehicle is loc keda gain
RAnti- theftp rotection is reactivated
Do no tkeep thek eytoget her wit helectronic
devices or me talo bjects. This can af fect the
ke y's functionalit y.
% If batter ychec klamp 2does no tlight up
af te rp ressing the% or& button, the
batter yisdischar ged.
Ac tivating/deactivatin gthe acoustic lo cking
ve rification signal
Multimedia sy stem:,Vehicle.Vehicle Settings.Acoustic
Lock
#Ac tivate Oor deacti vate ª thef unction.
Priming/deactivating thep anic ala rm
PrerequisitesRIgnition switched off.
#Toprime: press button 1fora pproxima tely
one second .
Av isual and audibl ealarmist riggered.
#To deactivate: brieflyp ress but ton1 again.
or
#Press thes tart/s topb utton on thec ockpit
(the SmartK eyis inside thev ehicle).
Changing theu nlocking settings
Possible unlocking functions of thek ey:
RCentral unlocking
RUnlocking thed rive r's door and fuel filler flap
#To switc hbetwe en settings: pressthe
% and& buttonss imultaneousl yfor
appr oximatel ysix seconds until theb attery
ch eckl am pflashes twice.
If th eu nlocking function fort he driver's door
and fuel filler flap has been selecte d:
RPressingthe% button asecondt ime cen‐
trally unloc ksthev ehicle.
RVehicles with KEYLESS-GO: Ifyo ut ouch
th ei nner sur face of thed oor handle on the
driver's door ,onlyt he driver's door and fuel
fi ller flap ar eunlocked.
Re ducing the energy consu mptionoft he
SmartK ey
Ifyo udon otintendtou sethev ehicle fora n
ex tende dperio doft ime,youc an deactivat ethe
fo llowing function sonthe SmartK ey.
RKEYLESS-GO startin gfunction
RKEYLESS-GO
56
Opening and closing

Anti-theftprotection
Immobilizer
The immobilizer pr events your vehicle from being
st ar tedw ithout thec orrect key.
The immobilizer is automaticall yactivated when
th ei gnition is switched of fand deactivated when
th ei gnition is switched on.
When leaving thev ehicle, alw ayst aket he key
wit hyou and loc kthe vehicle. An yone can start
th ee ngine if avalid keyh as been lef tins ide the
ve hicle.
% Inthee vent that thee ngine cannot bestar‐
te d( yetthe star terb atter yisc harged), the
sy stem is no toperational. Contact an
authorized Mercedes-Benz Center or call
1-800-FO R-MERCedes (in theU SA)or
1-800-387-0 100( in Canada).
ATA (anti-thef talarm system)
Fu nction of theA TAsystem (anti-thef talarm
sy stem)
If th eA TAsystem is armed, avisual and audible
alar mist riggered in thef ollowing situations:
RAd oor is opened
RThe trunk lid is opened
RThe engin ehood is opened
The ATA system is armed automaticall yafter
appr oximatel y10seconds:
RAfterl ocking thev ehicle wit hthe SmartK ey.
RAf terl ocking thev ehicle using KEYLESS-GO.
When theA TAsystem is armed, indicator
lamp :flashes.
The ATAs ystem is automaticall ydeactivated:
RAfteru nlocking thev ehicle wit hthe Smart‐
Ke y.
RAfterp ressing thes tart/s topb utton wit hthe
Sma rtKe yinsid ethe vehicle.
Opening and closing 79

Starting thev ehicle using asmartphone
&
WARNING Risk of crushing or entrap‐
ment duetou nintentional startin goft he
engine
Limbs could be crushed or trapped if the
engine is star tedu nintentionall yduring
service or maintenanc ework.
#Alw ayss ecur ethe engine agains tunin‐
te ntional startin gbefor ecarrying out
maintenance or repair work.
Re quirementsRPark position jis selected.
RThe anti- thefta larms ystemisn otarmed.
RThe panic alar misnotarmed.
RThe hazar dwarning lightsa reswitched off.
RThe engin ehood is closed.
RThe door sareclosed and loc ked.
RThe windo wsand slidings unroof ar eclosed.
#Startt he vehicle using thes martphone:
RYouc an car ryout amaximum of tw oconsec‐
utiv estartin ga ttem pts.
RYo uc an stop thea gain vehicle an ytime.
Securing thee ngine agains tstarting be fore
car rying out maintenance or repair work:
#Switc hont he hazar dwarning lights.
or
#Un loc kthe doors.
or
#Open theh ood.
St arting thev ehicle in eme rgency operation
mode
If th ev ehicle canno tbestarted, thePlace the
Key in the Marked Space See Operator's Manual
displa ymessag eappear sinthe multifunction
displa y.#Makesuret hat stow ages pace 2is em pty.
#Re mo veSmartK ey1 from thek eyring.
#Place Smart Key1 inthes towa ge space 2.
The vehicle will star ta fter as hor twhile.
If yo ur emo veSmartK ey1 from stowage
space 2thee ngine continues running .For
fur ther vehicle starts ho wever,SmartK ey1
mus tbel ocated in stowages pace 2during
th ee ntir ejourne y.
#Have SmartK ey1 checkedataq ualified
specialis tworks hop.
If th ev ehicle doe snotstar t:
#Lea veSmartK ey1 instow ages pace 2.
Drivin gand parking 12
9

Whenanew security keyiss aved, all existing
Wi -Fi connections ar ethen disconnected.
#To save asecurity key:select Save.
COMAND Touch
Au thorizing aCOMANDT ouchdevice
Re quirements
RThe COMAND Touc hA ppisins talled on the
ex tern al devic e(e.g. tablet) whic histobe
used as aRear Seat En tertainment unit.
RWi -Fi is acti vated(→pag e227)and them ul‐
timedia sy stem is confi gured asaWi-FiH ot‐
spo t(
→page 228).
Multimedi asyst em:
,System.COMAND Touch
Connecting anew device
#Select Authorize aNew Device.
#Select Connec tNew Device.
As ecurity keyisd isplayed.
#En tert he security keyint he extern al device.
The Please start COMAND Touchony our
device and follow th einstructions. The App
is availabl eintheApp Store. message
appears
Selecting an alread yconnected device
#Select Authorize aNew Device.
The devices already connec teda redispla yed.
#Select Continue Using Connected Devices.
The Please start COMAND Touch on your
device and follow the instructions. The App
is available in the App Store. message
appears
Ac tivating/deactivatin gCOMAN DTouch
ch ild saf etyl ock
Multimedias ystem:
,System.COMAND Touch
Child saf etyl ock
#Ac tivate Oor deacti vate ª Parental Con-
trol.
The content displa yedont heextern al device
can only be setonthe multimedia sy stem.
Sy stem language
Note sont he system language
This function allo wsyoutod etermine thel an‐
guag efor them enu displa ysand then avigation
announcements. The selected languag eaffects
th ec haracter savailable fore ntr y.The navigation
announcement sarenota vailable in all lan‐
guages. If alanguag eisnotavailable, then aviga‐
tion announcements will be in En glish.
Setting thes ysteml anguage
Multimedia sy stem:
,System.Language
#Se tthe language.
% Ifyo ua reusingA rabic map data, thet ext
information can also be shown in Arabic on
th en avigation map. Todo so, select ةيبرعلاas
th el anguag efromt he languag elist. Naviga‐
tion announcements ar ethen also made in
Arabic.
Multimedia sy stem 229

Activating/deactivatin gfull-scree nmode
Multimedia sy stem:
,Media.à Devices
#Select adatas torage medium.
Pla yable video files ar eplaye db ack.
#To activat efull-scree nmode: select
# Full Screen.
#Todeactivat efull-sc reen mode: pressthe
to uchpad or cont roller.
Changing video settings
Multimedia sy stem:
,Media.Z Options.Video
Settings
The following pictur eformats ar eavailable:
RAutomatic
R16:9
R4:3
RZoom
#Select thep ictur eformat. Ad
justin gthe brightness manually
#Select Brightness .
#Adjus tthe brightness.
Media sear ch
Starting them edia sear ch
Multimedia sy stem:
,Media.è Search
Depending on thec onnected media sources and
fi les, thef ollowing categories ar eliste d:
RAlbums
RArtists
RTracks
RKeyword Search
RPlaylists
RVideos
RFolder
RYear
RCurrent Track List
RMusic Genres
RComposers
RGenius Mixes (Apple®devices)
RPodcasts(Apple®devices)
RiTunes U(Apple®devices)
RAudiobooks (Apple®devices)
#Selectacategor y.
Media Inter face
Information abou tthe Media Inter face
Media Inte rface is auniversal inter face fort he
connection of mobile audioe quipment. The mul‐
timedias ystemh as tw oUSB ports. The USB
ports ar elocated in thes towa ge compartment
unde rthe armrest.
Suppor tedd evices
The Media Inter face allo wsyoutoc onnect the
fo llowing dat astorage media:
RiPod®
RiPhone®
RiPad®
262
Multimedia sy stem

Displaymessages
Possible causes/consequences and MSolutions
Tire Pressure Monitor Inop-
erative No Wheel Sensors *T
he wheels mounted do no thaves uitable tir epressur esensors. The tir epressur emonitoring sy stem is deactiva‐
te d.
#Mount wheels wit hsuitable tir epressur esensors.
h
Wheel Sensor(s) Missing *T
her eisnos ignal from thet irep ressur esensor of one or se veralw heels. The tir eaffected displa ysno pressure
va lue.
#Ha ve thef aulty tir epressur esensor replaced at aqualified specialis tworks hop.
SmartK ey
Displaymessages
Possible causes/consequences and MSolutions
Â
Place the Key in the
Marked Space See Opera-
tor's Manual*T
he SmartK eydetection function is malfunctioning.
#Chang ethe location of theS martK eyinthev ehicle.
#Startt he vehicle wit hthe SmartK eyinthes towa ge compartment .
Displa ymessages and warning/indicator lamps 385

Displaymessages
Possible causes/consequences and MSolutions
Â
Key Not Detected(red dis‐
pla ym essage) *T
he SmartK eycanno tbed etected and ma ynolonger be in thev ehicle.
The SmartK eyis no longer in thev ehicle and yous witch offt he engine:RYo uc an no longe rstart thee ngine.
RYouc anno tcentrall yloc kt he vehicle.
#Ensur ethat theS martK eyis in thev ehicle.
If th eS martK eydetection function hasam alfunction duetoastrongradio signal source:
#Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions.
#Place theS martK eyinthes towa ge compartment fors tartin gt he engine wit hthe SmartK ey.
Â
Key Not Detected (white
displa ymessage) *T
he SmartK eyis cur rently und etected.
#Chang ethe location of theS martK eyinthev ehicle.
#Ifth eS martK eyisstill no tbeing recognized, star tt he engine wit hthe SmartK eyinthes towa ge compartment .
Â
Don' tForget Your Key *A
warning tone also sounds. Thi smessage reminds youtot akey our keyw ithy ou when youl eave thev ehicle.
386
Displa ymessages and warning/indicator lamps