2012 MERCEDES-BENZ M-Class low

2.
this devicemust accep tany inte rference
rece ived,incl uding inte rference thatm ay
caus eunde sired oper ation.
An yunaut horizedmod ificatio ntothis
device couldvoidtheuser’s authority to
operate theequipment.
The Product labelwithFCCIDand IC
cert ification numbercanbefound inthe
battery caseofthe Smart Key.
Import antnotes onthe use ofKEY LESS-
GO R
The KEYLE SS-GO key can beused likea
conv ention alkey.
R You cancombine KEYLESS-GO funct ions
with those ofaconv ention alkey, e.g.
unlock withKEYLE SS-GO and lock with the
& button .
R Always carryyourKEYLE SS-GO key onyour
person.
R Do not keep theKEYLE SS-GO key toget her
with:
- electron icdevices, e.g.amobile phone
or another key
- metallic objects,e.g. coins ormetal foil.
This canaffect thefunct ionality of
KEYLE SS-GO.
R When lockingand unlockin gusing
KEYLE SS-GO, thedistance between the
Smart Keyand thecorrespon dingdoor
handle mustnotexceed 3ft (1 m).
R Ifthe KEYLE SS-GO key isremoved fromthe
vehicle, itis possible thatthesystem may
not recogn izethe Smart Key.Thevehicle
can then notbelocked orstart edusing
KEYLE SS-GO.
R Ifthe KEYLE SS-GO key has been removed
from thevehicle, e.g.ifapassenger leaves
the vehicle withaKEYL ESS-G Okey : X
To unl ockt he vehi cle:touch theinner
surfa ceofthe door handl e.
X To loc kthe vehi cle:touch sensor
surfa ce:.
X Co nven ienceclo singfeature: touch
recesse dsensor surface; for an
extended period(Ypag e87).
If you pullon the handl eofthe tailgate, only
the cargo compartmen tof the vehicle is
unlocked. Changing
thesettings ofthe lockin g
system
You canchange thesettin gofthe locking
system insuch away that only thedriver's
door andthefuel filler flapareunlocked. This
is useful ifyou frequently travelonyour own.
X To change thesetting: pressandhold
down the% and& buttons
simultaneously forapproximately six
seconds untilthebattery checklamp
(Y page 76)flashes twice. i
If
the settin gof the locking systemis
changed withinthesignal rangeofthe
vehicle, pressing the& or% button
locks orunlocks thevehicle.
The SmartK eynow funct ionsasfollows:
X To unlock thedriver's door:pressthe
% button once.
X To unlock centrally: pressthe%
button twice.
X To lock centrally: pressthe& button. 74
Smar
tKeyOpening/closing

The
KEYLE SS-GO funct ionischanged as
follows:
X To unlock thedriver 'sdoor: touch the
inner surface ofthe door handle onthe
driver's door.
X To unlock centrally: touchtheinner
surface ofthe door handle onthe fron t-
passenger doororthe rear door.
X To lock centrally: touchtheouter sensor
surface onone ofthe door handles. Restoring
thefactor ysettings
X Press the% and& button s
simultaneously forapproximately six
seconds untilthebattery checklamp
flashes twice. Mechanical
key
General notes If
the vehicle cannolonger beunlocked with
the Smart Key,usethemechanic alkey.
If you usethemechanic alkey tounlock and
open thedriver's door,theanti- theft alarm
system willbetriggered (Ypage 68).
There areseveral waystoturn offthe alarm:
X To turnthe alarmoff with the
Smar tKey: pressthe% or& button
on the Smart Key.
or
X Insert theSmart Keyinto theignition lock.
or
X To deactivat ethe alarmwith KEYL ESS-
GO: press theStart/S topbutton inthe
ignition lock.TheSmart Keymust beinthe
vehicle.
or
X Lock orunlock thevehicle usingKEYLE SS-
GO. TheSmart Keymust beoutside the
vehicle. Removing
themechanical key X
Push release catch: inthe direction of
the arrow andatthe same time,remove
mechanic alkey ;from theSmart Key. Smar
tKeybattery
Impor tantsafety notes Have
thebatteries changedataquali fied
specialist workshop. G
WARNIN
G Batt
eries containtoxicsubstances .
Swallowing batteriescanlead toserious
health issues ordeath.
Keep batteries outofthe reach ofchildren.
Seek medical attentionimmediately ifa
battery isswallowed . G
WARNIN
G The
Smart Keybatteries containperchlorate
material, whichmayrequire specialhandling
and regard forthe environ ment.Observe
governm entdisposal guidelines. California
resident s,see www .dtsc.ca.gov/
Haza rdousW aste/Perchlora te/
index.cfm. Sma
rtKey
75Opening/closing Z

Problem Possible
causes/co nsequences andM Solutions
The
engine cannot be
started usingthe
SmartK ey. 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 338).
or
X Jump-start thevehicle (Ypage 341).
or
X Consult aqual ified specialist workshop. The
engine cannot be
started usingKEYLE SS-
GO. TheSmartK eyisin
the vehicle. Ad
oor isopen. Therefore, theSmart Keycann otbe detect edas
easily .
X Close thedoor andtrytostart thevehicle again. There
isinter ferenc efrom apowerful sourceofradio waves.
X Start yourvehicle withtheSmart Keyinthe ignition lock. Doors
Import
antsafety notes G
WARNIN
G When
leaving thevehicle, alwaysremove the
Smart Keyfrom theignition lock.Always take
the Smart Keywith youand lock thevehicle.
Do not leave children unsupervised inthe
vehicle, evenifthey aresecured inachild
restraint system,anddonot give them access
to an unlocked vehicle.Achild's unsupervised
access toavehicle couldresult inan accident
and/or serious personal injury.Theycould:
R injure themselves onvehicle parts
R be seriously orfatally injured byextrem e
heat orcold
R injure themselves orhave anaccident with
vehicle equipment thatmay stillbein
operation evenaftertheSmartKey has
been removed fromtheignition, suchasthe
seat adjustment ,steering wheel
adjustment ormemory function. If
children openadoor, theycould cause
severe oreven fatalinjury toother persons; if
they getout ofthe vehicle, theycould injure
themselves whendoing soorbe seriously or
even fatally injured byany passing traffic.
Do not expose thechild restraint systemto
direct sunlight. Thechild restraint system's
metal parts, forexample, couldbecome very
hot, andachild could beburned onthese
parts. G
WARNING Do
not carry heavy orhard object sin the
passenger compartmen tor cargo
compartmen tunle ssthey arefirmly secu red
in place .
Unse curedorimp roperlypo sitio ned cargo
incre ases achi ld's ris kof inju ryinthe event
of
R stro ngbra king maneu vers
R sudd en cha nges ofdirecti on
R an acci dent 78
Do
orsOpening/closing

The
switches onthe driver's doortake
precedenc e. i
The
side windows cannotbe operated
from therear when theoverride featurefor
the side windows isactivat ed(Ypage 59).
X Turn theSmart Keytoposition 1or 2in the
ignition lock.
X To open: pressthecorrespon dingswitch.
X To close: pullthecorrespon dingswitch. i
If
you press theswitch beyond thepoint
of resistanc e,an automatic opening/
closing process isstart edinthe
correspon dingdirection .You can stop
automatic operationbyoperating the
switch again. i
You
cancont inue tooperate theside
windows afteryouswitch offthe engine or
remove theSmart Key.Thisfunct ionis
availa bleforuptofive minutes oruntil the
driver's orfront -passenger doorisopened. Conveni
enceopening feature
You canvent ilate thevehicle beforeyoustart
driving. Todo this, thekey isused tocarry out
the following functionssimultaneously:
R unlock thevehicle
R open theside windows
R open thesliding sunroof orthe panorama
roof with power tilt/sliding panelandthe
roller sunblinds
R switch onthe seat ventilation forthe
driver's seat i
The
conv enienc eopening featurecan
only beoperated usingtheSmart Key.The
Smart Keymust beclose tothe driver's
door handle.
X Point thetipofthe Smart Keyatthe driver's
door handle.
X Press andhold the% button untilthe
side windows andthesliding sunroof orthe
panorama roofwith power tilt/sliding
panel areinthe desired position. If
the roller sunblinds ofthe panorama roof
with power tilt/sliding panelareclosed, the
roller sunblinds areopened first.
X Press andhold the% button againuntil
the panorama roofwith power tilt/sliding
panel isin the desired position.
X To interr uptconvenie nceopening:
release the% button . Conveni
enceclosin g
General notes When
youlock thevehicle, youcan
simultaneously:
R close theside windows
R close thesliding sunroof orthe panorama
roof with power tilt/sliding panel
On vehicles withapanorama roofwith power
tilt/ sliding panel,youcan then close the
roller sunblinds. G
WARNIN
G When
closing thedoor windows andthe
sliding sunroof orpanorama roofwith power
tilt/ sliding panel,makesurethatthere isno
danger ofanyone beingharmed bythe closing
procedure.
If potent ialdanger exists,proceed asfollows:
R Release the& button tostop theclosing
procedure. Toopen, pressandhold the
% button .To cont inue theclosing
procedure aftermaking surethatthere is
no danger ofanyone beingharmed bythe
closing procedure, pressandhold the
& button .
Vehicles withKEYLE SS-GO:
R Release thesensor surface onthe outside
door handle tostop theclosing procedure.
R Immediately pullonthe same outside door
handle andhold firmly. Thedoor windows
and thesliding sunroof orpanorama roof
with power tilt/sliding panelwillopen for
as long asthe door handle isheld butthe
door isnot opened. 86
Side
window sOpening/closing

G
WARNING Clo
sing theside windo wswith increas edforce
or witho utthe anti-entrapme ntfeatu recoul d
lea dto serio usoreven fatalinjury .Make sure
th at nobody canbecome trapped when
clo singth eside windows.
If aside windowisobst ructeddurin gclo sing
and reopen sagain slightly:
X Imm ediat elyafterthewind owbloc ks,pull
th ecor respon dingswit chagain untilth e
side windowhas closed.
The side windowisclo sed with increas ed
for ce.
If aside windowisobst ructedagain during
clo singand reopen sagain slightly:
X Imm ediat elyafterthewind owbloc ks,pull
th ecor respon dingswit chagain untilth e
side windowhas closed.
The side wind owisclo sed with outtheant i-
ent rapm entfeat ure. G
WAR
NING Pullin
gand holdi ngtheswit chtoclo sethe
wind owimm ediat elyafterithad been blocked
two timeswill caus eth ewind owtoclo se
with outtheant i-entrapm entfeat ure foras
lon gas you hold theswit ch. Slid
ingsunroof Imp
ortant safety notes
Your vehicle may beequippe dwith aslidin g
sun rooforapanorama roofwith power tilt/
sliding panel.Inthe following section, the
term "sliding sunroof"refer sto both types of
sliding sunroof . G
WARN
ING When
openin gor closin gthe sliding sunroof ,
make surethatthereis no danger ofanyone
being harmed bythe openin g/closing
procedur e.
The sliding sunroof isequipped with
automatic operationandtheanti- entrapmen t feature.
Ifthe movem entofthe sliding sunroof
is block edduring theclosin gprocedu re,the
slid ing sunroof willstop andopen slightly.
The sliding sunroof operatesdiffere ntlywhen
the slidingsunroof switch ispresse dand held .
See the"Prob lemswiththesliding sunroof"
section formore details.
The opening/cl osingprocedu reofthe sliding
sunroof canbeimmed iatelyhal ted by
relea singthesliding sunroof switch or,ifthe
slid ing sunroof switch was moved pastthe
resista ncepoint andrelea sed,bymoving the
slid ing sunroof switch inany directio n. G
WARNING The
slidingsunroof ismade outofgla ss. Inthe
event ofan accide nt,the glassmay shatter.
This may resul tina no penin gin the roof.
In avehicle rollover, occupants notwearing
their seatbelts ornot wearing themproperly
may bethrown outofthe openin g.Such an
openin galso presen tsapoten tialforinjury for
occ upants wearing theirseatbelts properly,
as ent irebody parts orportion sof them may
protr udefrom thepassenger compartment.
! Only open thesliding sunroof ifit is free
of snow andice.Other wise, malfunc tions
may occur.
Do not allow anythin gto protr udefrom the
sliding sunroof .Othe rwise, the sealscou ld
be dama ged.
! Thewe ath ercan change abruptl y.Itcou ld
sta rtto rain or sno w.Ma kesure tha tthe
sl id ing sunroo fisclosed whenyouleave the
vehicle. Thevehicle electronics canbe
damage difwater enters thevehicle
interior. i
Resonance
noisescanoccur inaddition
to the usua lairflow noiseswhenthesliding
sunroof isopen. Theyarecaused byminor
pressure fluctuations inthe vehicle interior.
Change theposition ofthe sliding sunroof
or open aside window slightlytoreduce or
eliminate thesenoises. 88
Sliding
sunroofOpening/closing

Opera
tingthesliding sunroof
Opening andclosing i
You
cancontinue tooperate thesliding
sunroof afterswitchin goff the engin eor
removin gthe Smart Keyfrom theignition
lock. Thisfunctionisavailable foruptofive
minut esoruntil thedriver's orfron t-
passenger doorisopened. Overhead
control panel
: Toraise
; Toopen
= Toclose/lower
X Turn theSmart Keytoposition 1or 2in the
ignition lock.
X Press orpull the2 switch inthe
corr espondin gdirect ion. i
If
you press the2 switch beyond the
point ofresist ance, anautomatic opening/
closing process isstart edinthe
corr espondin gdirect ion.You canstop
automatic operationbyoperatin gthe
switch again.
When opening andraising theroof,
automatic operationisonly available ifthe
sliding sunroof isin the closed position .
The sunprotec tioncover automatic allyopens
along withthesliding sunroof .You can open
or close thesun protec tioncover manually
when thesliding sunroof israised orclosed. Resetting Reset
thesliding sunroof ifit does notmove
smoothly.
X Turn theSmart Keytoposition 1or 2in the
ignition lock.
X Raise thesliding sunroof fullyatthe rear
(Y page 89).
X Keep the2 switch pressed foranother
second.
X Make surethatthesliding sunroof canbe
fully opened andclosed again(Ypage 89).
X Ifthis isnot thecase, repeat thesteps
above again.
! Ifthe sliding sunroof stillcann otbe
opened orclosed fullyafter resett ing,
cont actaquali fiedspecialist workshop. Operat
ingthe panora maroof with
power tilt/sliding panel
Opening andclosin g Overhead
controlpanel
: Toraise
; Toopen
= Toclose/lower
The panorama roofwith power tilt/sliding
panel canonly beoperated whentheroller
sunblind isopen.
X Turn theSmart Keytoposition 1or 2in the
ignition lock.
X Push orpull the2 switch inthe
correspon dingdirection . Sliding
sunroof
89Opening/closing Z

Problems
withthesliding sunroof
Your vehicle maybeequipp edwith asliding
sunroof orapanorama roofwith power tilt/
sliding panel.Inthe following section,the
term "slidingsunroof" referstoboth types of
sliding sunroof.
Problem: thesunroof cannotbeclose d
and youcannot seethecause. G
WARNING You
could beseverely oreven fatally injured
when closing thesliding sunroof with
increased closingforceorifthe anti-
entr apment featureisdeactivated. Makesure
that nobody canbecome trappedwhen
closing thesliding sunroof.
If the sliding sunroof isobstruct edduring
closing andreopens againslightly:
X Immediately afterthesliding sunroof
blocks, pullthe2 switch inthe
overhead controlpanel downtothe point
of resistance andhold ituntil thesliding
sunroof isclosed.
The sliding sunroof isclosed withincreased
force.
If the sliding sunroof isobstruct edagain
during closing andreopens againslightly:
X Immediately afterthesliding sunroof
blocks, pullthe2 switch inthe
overhead controlpanel downtothe point
of resistance andhold ituntil thesliding
sunroof isclosed.
The sliding sunroof isclosed without the
anti-en trapment feature. G
WARNING Pressing
andholding thesliding sunroof
switch toclose thesliding sunroof
immediately afterithad been blocked two
times willcause thesliding sunroof toclose
without theanti-en trapment featureforas
long asyou hold theswitch.
! Ifthe sliding sunroof stillcannot be
opened orclosed asaresult ofa malfunction
,cont actaqual ified specialist
workshop. Sliding
sunroof
91Opening/closing Z

(
Y page 103)in such away that youhave
a good viewofroad andtrafficcon dition s.
X Vehicles withamem oryfunct ion:save
the seat, steeringwheel andexterior mirror
sett ings (Ypage 105). Seats
Impor
tantsafet ynotes G
WARN
ING In
order toavoid possible lossofvehicle
con trol,all seat, head restraint ,steer ing
wheel andrear view mirror adjustm ents,as
well asfasten ingofseat belts, mustbedone
before settingthe vehicle inmot ion. G
WARN
ING Do
not adjust thedriver' sseat while driving.
Adj ustin gthe seat while drivingcould cause
the driver tolose controlof the vehicle.
Never travelin amovin gvehicle withtheseat
backr estinan exc essively reclinedposition as
this canbedangerous. Youcould slideunder
the seat beltinacollision .Ify ou slide under
it, the seat beltwould applyforceatthe
abdomen orneck .This could cause serious or
fatal injuries. Theseat backrest andseat belts
provide thebest restraint whenthewearer is
in aposition thatisas upright aspossible and
seat belts areproperly positioned onthe
body. G
WARNING Your
seatbeltmust beadjusted sothat you
can correct lyfasten yourseatbelt.
Observe thefollowing points:
R adjust theseat backrest untilyour arms are
slightly angledwhenholding thesteering
wheel.
R adjust theseat toacomfort ableseating
position thatstillallow syou toreach the
accelerator/brake pedalsafely. The
position shouldbeasfar back aspossible with
thedriver stillable tooperate the
cont rolsproperly.
R adjust thehead restraint sothat itis as
close tothe head aspossible andthecent er
of the head restraint supports theback of
the head ateye level.
R never placehands undertheseat ornear
any moving partswhile aseat isbeing
adjusted.
Failure todo socould result inan accident
and/or serious personal injury. G
WARNING The
electrically adjustableseatscanbe
operated atany time. Therefore, donot leave
children unattended inthe vehicle, orwith
access toan unlocked vehicle.Achild's
unsupervised accesstoavehicle couldresult
in an accident and/orserious personal injury. G
WARNING Acc
ording toaccident statistics,children are
safer when properly restrained inthe rear
seating positions thaninthe front seating
position. Thus,westron glyrecommen dthat
children beplaced inthe rear seats whenever
possible. Regardlessofseating position,
children 12years oldand under mustbe
seated andproperly securedinan
appropriately sizedinfant restraint ,toddler
restraint ,or booster seatrecommen dedfor
the size andweight ofthe child. Foradditional
information, see"Chil dren inthe vehicle".
Ac hild's riskofserious orfatal injuries is
significantly increasedifthe child restraint s
are not properly securedinthe vehicle and/
or the child isnot properly securedinthe child
restraint . G
WARNING For
your protect ion,drive onlywith properly
positioned headrestraint s.
Adjust thehead restraint sothat itis as close
to the head aspossible andthecent erofthe
head restraint supports theback ofthe head
at eye level. Thiswillreduce thepotent ialfor Seats
95Seats, steering wheel and mirrors
Z