child lock MERCEDES-BENZ M-Class 2012 W166 Owner's Guide

EASY-EN
TRY/EXIT system
Imp ortant safety notes The
EASY- ENTRY/E XITfeat uremak esget ting
in and outofyour vehicle easier .
You canactivat eand deac tivate theEA SY-
EN TRY/E XITfeat ure intheon -bo ard
com pute r(Y page 236). G
WAR
NING You
must makesure noonecan become
tr apped orinjured bythem oving steering
wheel whentheeasy-entry/ex itfeature is
activated.
To stop steering wheelmovement doone of
the following:
R Move steering wheeladjustmen tstal k.
R Pre ssone ofthe mem orypositio nb uttons.
R Pre ssmem orybuttonM.
Do notleave childr enunat tend ed inthe
veh icle,or wit hacc ess toan unlo cked veh icle.
Childr encould open thedriv er'sdoor and
unin tent ion ally activat eth eeasy- entry/ex it
feat ure, whic hco uld result inan acc iden t
and /or serious person alinj ury. G
WAR
NING Let
thesyst emcomple tetheadj ust men t
pro ced ure before settingth ev ehicle in
motion .Allste erin gwheel adjustmentmust
be comple tedbef ore settingth eveh icle in
mot ion.Dr ivin goff withth est eer ing wheel
st ill adj ust ing could caus eth edriv erto lose
co ntrol oftheveh icle.
Posit ionofthest eeri ngwheel whenthe
EASY-EN TRY/EXIT feature isact ive The
steer ing wheel swingsupward swhen
you:
R remove theSmartK eyfrom theignition lock
R open thedriver's doorandKEYLE SS-GO is
in position 1
R open thedriver's doorandtheSmartK eyis
in position 0or 1in the ignition lock i
The
steering wheelonlymoves upwardsif
it has notalready reached theupper end
stop.
Position ofthe steering wheelfor
driving The
steering wheelismoved tothe last
selected positionwhen:
R the driver's doorisclosed.
R you insert theSmartK eyinto theignition
lock.
or
R you press theStart /Stopbutton onceon
vehicles withKEYLE SS-GO.
When youclose thedriver's doorwiththe
ignition switched on,the steering wheelis
also automatically movedtothe previously
set position.
The lastposition ofthe steering wheelis
stored whenyouswitch offthe ignition or
when youstore thesettin gwiththe memo ry
func tion (Ypage 105).
Cra sh-resp onsive EASY-EXIT feature If
the crash- respo nsiveEA SY- EXITfeat ure is
tr iggere din an acc ident ,the steerin gcolum n
will mov eupwards whenthedrive r'sdoor is
open ed.This occurs irres pectiveofthe
posit ionofthe SmartKey inthe ignit ionlock .
This makesiteasier toexit thevehic leand
resc uethe occupant s.
The crash- respo nsiveEA SY- EXITfeat ure is
only operat ionalifthe EASY- EXIT/E NTRY
feat ureisact ivat edinthe on-board computer . 102
Steer
ingwheelSeats, steering wheel and mirrors

i
You
canstartthe engine without preglow
if the engine iswarm. i
You
canalso usethetouch-st artfunct ion.
To do this, turntheSmartK eytoposition 3
(Y page 139)andrelease itimmediately.
The engine thenstarts automatically .
Using KEYLESS-GO tostar tthe eng ine G
WARNING As
long asthe SmartKey isin you rvehicle, the
vehicle canbestart ed.Therefor e,never leave
children unattended inthe vehicle, asthey
could otherwiseacciden tallystart theengine.
When leaving thevehicle, alwaystake the
Smart Keywith youand lock thevehicle. Do
not leave children unattended inthe vehicle,
or with access toan unlock edvehicle. A
child's unsupervised accesstoavehicle could
result inan acciden tand/o rserious personal
injury. i
The
Start/ Stop button canbeused to
start thevehicle without insertingthe
Smart Keyintothe ignition lock.TheStart/
St op button mustbeinsert edinto the
ignition lockandtheSmart Keymust bein
the vehicle.
X Depress thebrake pedalandkeep it
depressed.
X To star tag asolineeng ine:press the
Start/Stop button(Ypag e139) once.
The engine starts.
X To start adiesel engine: presstheStart/
St op butt on(Ypage 139)onc e.
Preglow isact ivated andtheengin estar ts. Pulling
away
Autom atic transm ission G
WARN
ING It
is danger oustoshift theautomat ic
tr ansm ission outofparkin gposition Por
neutral position Nifthe engine speedis higher
thanidlespeed. Ifyour footisnot firmly
on the brake pedal, thevehicle could
accelerate quicklyforward orinreverse. You
could losecontrolofthe vehicle andhit
someone orsomethin g.Only shiftintogear
when theengine isidling normally andwhen
your right footisfirmly onthe brake pedal. i
It
is only possible toshift thetrans mission
from position Pto the desired position if
you depress thebrake pedal. Onlythenis
the parking lockreleased. Ifyou donot
depress thebrake pedal, youcan move the
DIRECT SELECT lever buttheparking lock
remains engaged.
X Depress thebrake pedalandkeep it
depressed.
X Shift thetrans mission toposition Dor R
(Y page 144).
X Relea sethe brake pedal.
X Carefully depresstheaccelerator pedal.
The electric parking brake(Ypage 156)is
automatically released.
The redF (USAonly)or! (Canada
only) indicator lampinthe instr ument
cluster goesout. i
The
vehicle lockscentrally once youhave
pulled away.The locking knobsinthe doors
drop down.
You canopen thedoors fromtheinside at
any time.
You canalso deactivate theautomatic
locking feature(Ypage 235). i
Upshifts
takeplace athigher engine
speeds afteracold start. Thishelps the
catalytic convertertoreach itsoperating
temperature morequickly.
Pulling awaywithatra iler To
ensure thatyoudonot rollbackwards
when pullingaway onanuphill slope, engage
the electric parking brake. Driving
141Driving and parking Z

X
When thevehicle isstat ionary, depress the
brake pedal.
X Push theDIRE CTSELECT leveruppast the
first point ofresistan ce.
Shift ingtoneutr alN X
When thevehicle isstat ionary, depress the
brake pedal.
X Push theDIRE CTSELECT leverupordown
to the first point ofresistan ce.
If the engine hasbeen switched off,the
automatic transmission automatic ally
switches toN.
Rema ininginneutr alN
If the automatic transmission isto remain in
neutr alN, e.g. forwashing thevehicle incar
washes withatowing device, pleaseobserve
the following instruct ions: G
WARN
ING When
leaving theSmart Keyinthe start er
switch, donot leave children unattended in
the vehicle. Itis possible forchildren toswitch
on the ignition whichcouldresult in
unsupervised useofvehicle equipment.
Unsuperv iseduseofvehicle equipment could
result inan accident and/orserious personal
injury.
Using theSma rtKey:
R make surethattheignition isswitched on.
R when thevehicle isstat ionary, depress the
brake pedalandkeep itdepressed.
R shift toneutr alN.
R release thebrake pedal.
R ifapplied, releasetheelectr icparking
brake.
R switch offthe ignition andleave the
Smart Keyinthe ignition lock.
Using KEYLESS-GO:
R make surethattheignition isswitched on.
R when thevehicle isstat ionary, depress the
brake pedalandkeep itdepressed.
R engage parkposition P. R
release thebrake pedal.
R remove theStart/ Stop button fromthe
ignition lock.
R insert theSmart Keyinto theignition lock.
R switch onthe ignition .
R depress thebrake pedalandkeep it
depressed.
R shift toneutr alN.
R release thebrake pedal.
R ifapplied, releasetheelectr icparking
brake.
R switch offthe ignition andleave the
Smart Keyinthe ignition lock.
Shift ingtotransmission positionD X
When thevehicle isstat ionary, depress the
brake pedal.
X Push theDIRE CTSELECT leverdown past
the first point ofresistan ce. Tr
ansmission positiondisplay
The curren ttransmis sionposition isshow nin
the multifu nctio ndisplay. :
Tran smiss ionposit ion
The arrows inthe transm ission position
display showhowandintowhich
tr ansm ission positionsyoucan chan geusing
the DIRECT SELECT lever .
! Ifthe transm ission positiondisplay inthe
mult ifunc tiondisplay isnot work ing,you
should pullaway carefully tochec kwhether
the desired transmission positionis
engaged. Selecttransmission positionD.
Do not restrict theshift range. Automat
ictransmission
145Driving and parking Z

X
App lythe electri cpark ing brak e.
X Sh ift thetrans mis sion toposi tionP.
Using theSm artKey X
Turn theSm artKey toposi tion0 inthe
ign ition lockand remove it.
The imm obiliz erisact ivat ed. i
If
you turnoff theen gin ewit hth e
Sm artKey and then rem ove itfrom the
ign ition lockor open afron tdoor ,th e
auto matictrans mis sion shiftsto P
auto maticall y.
Using KEYLESS- GO X
Pre sstheSt art /S topbut ton( Ypage 139).
The engin estops andallthe indicat or
lamps inthe instrument clustergoout. i
If
you usetheStart/ Stop butt ontoswitc h
off the engin e,the automatic transmission
shift sto Nautomatic ally.Ifyou then open
one ofthe fron tdoors, theautomatic
trans mission shiftstoP. i
In
an emergenc y,the engine canbe
turned offwhile thevehicle isin motion by
pressing andholding theStart /Stopbutton
for three seconds. Elec
tric par king brake
General information i
The
electric parking brakeperforms a
funct iontest atregular intervalswhile the
engine isswitched off.The sounds thatcan
be heard whilethisisoccurrin gare normal. G
WARNIN
G When
leaving thevehicle, alwaysremove the
Smart Keyfrom thestart erswitch, takeitwith
you, andlock thevehicle. Donot leave
children unattendedinthe vehicle, orwith
access toan unlocked vehicle.Children could
release theparking brakeand/or shiftthe
automatic transmission outofpark position P,
either ofwhich couldresult inan accident
and/or serious personal injury. Applying/releasing
manually X
To app ly:press handle :.
The redF (USAonly)or! (Canada
only) indicator lampinthe instr ument
cluster lightsup. i
The
electric parking brakecanalso be
applied whentheSmart Keyisremoved.
X To release: pullhandle :.
The redF (USAonly)or! (Canada
only) indicator lampinthe instr ument
cluster goesout. i
The
electric parking brakecannotbe
released unlesstheSmart Keyisin position
1 in the ignition lockorthe ignition has
been switched onusing theStart /Stop
button .
To ensure thatyoudon't rollbackwards when
pulling awayonanuphill slope, engage the
electric parking brake(Ypage 141).
Applying automat ically Your
vehicle's electricparking brakeis
automatically appliedifDIS TRONIC PLUSor
the HOLD functionbring thevehicle toa
standst ill,orare engaged tokeep thevehicle
station ary.Inaddition, atleast oneofthe
following conditionsmust befulfilled: 156
Par
kingDriving and parking

wheel
whentheeasy-e ntry/e xitfeat ure is
act ivat ed.
To stop steerin gwheel movemen t,mov e
st eerin gwheel adjustment lever orpres sone
of themem oryposit ionbutt ons.
Do not leave childrenunat tended inthe
vehic le,orwith access toan unloc kedvehic le.
Childre ncould open thedriver's doorand
uninten tionally activate theeasy-entry/ex it
feature, whichcouldresult inan accident
and/or serious personal injury.
X Press the= or; button onthe
steering wheeltoselect the Sett. menu.
X Press the: or9 button toselect the Convenience submenu.
X Press thea button toconf irm.
X Press the: or9 button toselect the Easy
Entry/Exit funct
ion.
You willsee theselected setting: Enabled
or Disabled .
X Press thea button tosave thesetting.
Switching thebelt adjustm enton/off
For further informat iononbelt adjustmen t
(Y page 52).
X Press the= or; button onthe
steering wheeltoselect the Settings
menu.
X Press the: or9 button toselect the Convenience submenu.
X Press thea button toconf irm.
X Press the: or9 button toselect the Belt
Adjustment funct
ion.
You willsee theselected setting: Enabled
or Disabled .
X Press thea button tosave thesetting.
Switching theFold inmirr orswhen
locking function on/off
If you switch onthe Fold Mirrors in when
Locking funct
ion,theexter iormirrors foldin
when youlock thevehicle. Ifyou unlock the
vehicle andthen open thedriver's orfront - passenger
door,theexter iormirrors foldout
again.
If you have switched thefunct iononand you
fold theexter iormirrors inusing thebutton
on the door (Ypage 103), theywillnotfold
out automatically. Theexter iormirrors can
then onlybefolded outusing thebutton on
the door.
X Press the= or; button onthe
steering wheeltoselect the Sett. menu.
X Press the: or9 button toselect the Convenience submenu.
X Press thea button toconf irm.
X Press the: or9 toselect the Fold
Mirrors
inwhen Locking: funct
ion.
You willsee theselected setting: Enabled
or Disabled .
X Press thea button tosave thesetting.
Resetting tofactory settings For
safety reasons, the Daytime
Running Lights: funct
ioninthe Lights submenu
is
only reset when thevehicle isstation ary.
X Press the= or; button onthe
steering wheeltoselect the Settings
menu.
X Press the: or9 button toselect the Factory
Setting submenu.
X Press thea button toconf irm.
The Reset
AllSettings? message
appears.
X Press the: or9 button toselect No or Yes .
X Press thea button toconf irmthe
selection.
If you select Yes ,
the multifunct iondisplay
shows aconf irmation message. Menus
andsubmenus
237On-board computer and displays Z

Asht
ray
Asht rayin thefront -com partmen t
cent erconsole !
The hold erund ertheasht rayisno th eat
resist ant.Befor eplacing litcigaret tesinthe
ashtray, makesurethattheashtray is
properly engaged. Otherwise, theholder
could bedamaged. X
To open: slidecover :fully forwards.
X Fold thelidofinsert =upwards.
X To rem ove theinsert: pressinsert =to
the left ?.
Asht rayinsert =slides outslightly tothe
right.
X Lift insert =up; and out.
X To install theinsert: installinsert =into
the holder andpress downonthe right-
hand sideuntil itengages.
Ashtr ayinthe rear -comp artment center
console !
Close theashtray whenitis not inuse and
before youfold therear seats forward. You
can other wisedamage theashtray.
Vehicles withoutaRear SeatEntert ainmen t
System haveanashtray inthe centercon sole
in the rear compart ment. X
To open: briefly presscover ;atthe top.
The ashtray opens.
X To rem ove theinsert:p ressintorecess
= from theright.
Ashtray insert:slid esout slightly tothe
right.
X Lift insert :upand out.
X To install theinse rt:install insert:into
the hold erand press downonthe right-
hand sideuntil itengages. Cigarette
lighter G
WARNING When
leaving thevehicle, alwaysremove the
SmartK eyfrom theignition lock.Always take
the SmartK eywith youand lock thevehicle.
Do not leave children unattendedinthe
vehicle, evenifthey aresecured inachild
restraint system,orwith access toan
unlocked vehicle.Achild's unsupervised
access toavehicle couldresult inan accident
and/or serious personal injury.Thechildren
could:
R injure themselves onparts ofthe vehicle
R be seriously orfatally injured through
excessive exposuretoextrem eheat orcold
R injure themselves orcause anaccident with
vehicle equipment thatcanbeoperated
even ifthe SmartKey isremoved fromthe
ignition lockorremoved fromthevehicle,
such asseat adjustment ,steering wheel
adjustment ,or the memory function 296
FeaturesStowing and features

If
childre nopen adoor, theycould injure other
person sor get out ofthe vehicle andinjure
them selves orbe injured byfollowing traffic.
Do not expose thechild restraint system to
direct sunlight .The child restraint system's
metal parts, forexample, couldbecome very
hot, andthechild could beburned onthese
parts. G
WARNING Never
touchtheheating element orsides of
the lighter; theyareextrem elyhot. Hold the
knob only.
Make sureanychildren traveling withyoudo
not injure themselves orstart afire with the
hot cigarette lighter.
! The cigarette lighterinthe cent erconsole
in the front compartmen tis not inten ded
for operating thetire inflation compressor. X
Turn theSmartK eytoposition 2in the
ignition lock.
X To open: slidecover :fully forwards.
X Press incigarette lighter;.
Ciga rettelighter ;will pop out
automatically whentheheating element is
red-hot.
X To close :pull cover :fully back. 12
Vsocket s
Point sto obser vebefor euse Wit
hth eexc eption ofthesoc ket inthefron t
cen terc onsole, allsocket scan be used for
acc essorie swit hamax imum curren tdraw of
240 W(20 A),e.g. lamp sor charge rsfor
mobil ephones.
The socket inthe center console inthe front
compartment canbeuse dfor accesso ries,
e.g lamp sor mobil ephone chargerswith a
maximu mcurrent drawof180 W(15 A).
If you usethesockets forlong periods when
the engine isswi tched off,thebattery may
discha rge.
X Turn theSmartKey toposi tion 1in the
ignitio nlock. i
An
emergenc ycut- out ensures thatthe
on-board voltagedoesnotdrop toolow. If
the on-board voltageistoo low, thepower
to the socket sis automatically cut.This
ensures thatthere issufficient powerto
start theengine.
Socket inthe rear -compa rtment center
consol e X
Lift upthe cover ofsocket :.
Vehicles withtheRear SeatEntert ainment
System havetwosocket sin the cent er
console inthe rear compartm ent. Featur
es
297Stowing and features Z

Please
bearthefollow inginmind Resetting
theservice interval display
Aq ualifi edspec ialist workshop,e.g. an
auth orizedMer cedes- BenzCent er,will reset
the servic eint erval display afterthe
nec essary servicework hasbeen carried out.
Furt herinfor mation ,on maint enanc efor
example, canbeobtained atan authoriz ed
Mercedes- BenzCenter ordirect lyfrom
Mercedes- Benz.
! Ifthe servic eint erval display hasbeen
reset unintentionally, havethesetting
corr ectedataMercedes- BenzCenter .
Have servic ework carried outasdescribed
in the Serv iceBook let.This may other wise
lead toincr eased wearanddamage tothe
major assemblies orthe vehicle.
Driving abroad
An ext ensive Mercedes- BenzServ icenetwork
is also available inother countries.Youcan
obtain furtherinfor mation fromany
authoriz edMercedes- BenzCenter . Care
Notes
oncare
Regular careofyour vehicle isacon dition for
retain ingthe quality inthe long term.
Use care product sand cleanin gagents
recom mended andapproved byMercedes-
Ben z. G
WARN
ING Many
cleanin gproduct scan behazardous.
Some arepoisonous, othersare flammable.
Always followtheinstruct ions onthe
particular container .Always openyour
vehic le'sdoors orwindows whencleaningthe
inside .
Never usefluids orsolven tsthat arenot
design edfor clean ingyour vehic le.
Always lockaway cleaningproduc tsand keep
the mout ofreach ofchildr en. !
For clean ingyour vehic le,do not use any
of the followin g:
R dry, rough orhard cloths
R abrasive cleaningagent s
R solven ts
R clean ingagent scon tain ingsolven ts
Do not scrub.
Do not touc hthe surfac esorprot ective
films withhard objects, e.g. arin gor ice
scr aper. Youcould otherwise scratc hor
damage thesurfac esand protective film. H
Envir
onment alnote Disp
oseofempt ypack aging andclean ing
clot hsinan env iron men tally respo nsible
mann er.
! Donot park thevehic lefor anext ended
period straight afterclean ingit,part icularly
aft erhavin gclean edthe wheels withwheel
clean er.Wheel cleanerscould cause
inc reased corrosio nofthe brake discsand
brake pads/linings. Forthis reason, you
should driveforafew minutes after
cleaning. Brakingheatsthebrake discsand
the brake pads/linings, thusdrying them.
The vehicle canthen beparked. Exterior
care
Automat iccar wash G
WARNING Braking
efficiency isreduced afterwashing
the vehicle. Thiscould cause anaccident. For
this reason, youmust driveparticularly
carefully afterwashing thevehicle untilthe
brakes havedried.
You canwash thevehicle inan automatic car
wash fromthevery start.
! Never cleanyourvehicle inaTouchless
Automatic CarWash asthese usespecial
cleaning agents.Thesecleaning agentscan
damage thepaintwork orplastic parts. 318
CareMaintenance and care

X
Affi xpa rt: ofthe sticker withi nthe
dri ver 'sfie ldof vis ion.
X Affi xpa rt; ofthe sticker nearthe valve
on the wheelwi th the defecti vetire . G
WA
RNING Ta
ke car enot toallo w the conte ntsofTIR EFIT
to come inconta ctwith hair, eyes orclo thing.
TIR EFIT isha rmfu lif inh aled ,sw allo we dor
ab sor bedthro ughthe skin-c auses skin, eye
and respirat oryirritat ion.
An ycon tactwith eyes orskin should be
flushed immediatelywithplent yof water .
If clot hing comesincon tactwith TIREFIT,
chan geclot hing assoon aspossible .
In case ofallergic reactionorrash, consult a
physician immediately. G
WARN
ING Keep
TIREFITaway fromchildr en.If
swallowed, rinse mout himmed iatelywith
plent yof water anddrinkplent yof water .
Do not induc evomit ing.
Consult adoct orimmed iately.
Keep away fromo pen flame orheat source. i
If
TIREF ITleaks out,allow itto dry. Itcan
then beremov edlike alayer offilm.
If you getTIREF ITon your clothing, haveit
cleaned assoon aspossible with
perchlor oethylene . X
Pull connector?with thecable andhose
A out ofthe housing.
X Scr ew hose Aontoflange Boftire
sealant bottle:.
X Inser ttire sealant bottle: upside down
int oopen ing;onthe tireinf lation
com press or. X
Remove thecap fromvalve Conthe
defec tivetir e.
X Sc rew filler hose Dontovalve C.
X Insert plug ?intothe 12Vsoc ket
(Y page 297).
X Turn theSmartKey toposit ion
1 (Y page 139)in the ignit ionlock .
X Press on/offswitc h= onthe tireinf lation
com press ortoI.
The tireinf lation compress orisswitc hed
on. The tireis inf lated. i
Firs
t,TIRE FITispumped intothe tire. The
press urecan brief lyrise toapprox imately
500 kPa(5bar/7 3psi). Flat
tire
331Breakdown assistance Z