2012 MERCEDES-BENZ M-Class door lock

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

Adj
usting thest eer ing wheel
ma nua lly :
Releas elev er
; Toadj ust thest eer ing whee lheig ht
= Toadj ust thest eer ing whee lpos ition
(fo re- and -aftadj ust men t)
X Push release lever: down comple tely.
The steer ing column isunl ocked.
X Ad jus tthe steering wheeltothe desired
position.
X Push release lever:upcompletely.
The steering columnislocked.
X Check ifthe steering columnislocked.
When doingso,trytopush thesteering
wheel upordown ortry tomove itin the
fore-and- aftdirection. Adjust
ingthe steering wheel
elec trically :
Toadjust thesteering wheelheight
; Toadjust thesteering wheelposition
(fore-and-aft adjustment) i Other
topics:
R EAS Y-ENTRY/EXI Tfeature
(Y page 102)
R Stor ingsettin gs(Ypage 105) Steering
wheelheating
Switching on/off X
Make surethattheSmartK eyisin position
2 in the ignition lock.
X To switch on/off: turnthelever inthe
direction ofarrow :or;.
Indicator lamp=lights uporgoes out.
Vehicles withoutKEYLESS-GO: when you
remove thekey from theignition lock,the
steering wheelheating isdeactivated.
Vehicles withKEYLE SS-GO: when youswitch
off the ignition andopen thedriver's door,the
steering wheelheating isdeactivated.
Problems withthesteering wheel
heating The
steering wheelheating hasswitched off
prematurely orcannot beswitched on.The
vehicle's electrical systemvoltage istoo low
because toomany electrical consumers are
switched on.
X Switch offelectrical consumers whichyou
do not need, suchasthe rear window
defroster orinterior lighting. Steering
wheel
101Seats, steering wheel and mirrors Z

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

otherwise
notfold inwhen youselect the
"Fold inmirrors whenlockin g"funct ioninthe
on-board computer (Ypage 237).
X Make surethattheSmart Keyisin
position 1in the ignition lock.
X Briefly pressbutton :.
Folding theexterior mirrorsinor out
aut omat ically If
the "Fold inmirrors whenlockin g"funct ion
is activated inthe on-board computer
(Y page 237):
R the exter iormirrors foldinautomatically as
soon asyou lock thevehicle fromthe
outside.
R the exter iormirrors foldoutagain
automatically assoon asyou unlock the
vehicle andthen open thedriver's orfront -
passenger door. i
The
mirrors donot fold outifthey have
been folded inmanually .
Exterior mirrorout ofposition If
an exter iormirror hasbeen pushed outof
position, proceedasfollows:
X Vehicles withoutelectrically folding
exterior mirrors: move theexter iormirror
into thecorrec tposition manually.
X Vehicles withelectrically folding
exterior mirrors: press andhold the
mirror- folding button(Ypage 103)untilyou
hear themirror engage inposition.
The mirror housing isengaged againand
you can adjust theexter iormirrors asusual
(Y page 103). Automa
ticanti-glar emirr ors G
WARNIN
G If
incident lightfrom headlamps isprevent ed
from strikingthe sensor inthe rear-view
mirror, forinstan ce,byluggage piledtoohigh in
the vehicle, themirror's automatic anti-
glare functionwill notoperate.
Inc ident lightcould thenblind you.Thismay
distract youfrom thetraffic conditionsand,
as aresult, youmay cause anaccident .
The rear-view mirrorandtheexter iormirror
on the driver's sideautomatically gointo anti-
glare mode ifthe ignition isswitched onand
incident lightfrom headlamps strikesthe
sensor inthe rear-view mirror.
The mirrors donot gointo anti-glare mode if
reverse gearisengaged orthe interior lighting
is switched on. Park
ingposition forthe exterior
mirr oron the front- passenger side
Setting andstoring theparking position You
canposition thefront -passenger side
exter iormirror insuch away that youcan see
the rear wheel onthat side assoon asyou
engage reverse gear.Youcanstore this
position. X
Make surethatthevehicle isstation aryand
that theSmart Keyisin position 2in the
ignition lock.
X En gage reverse gear.
The exter iormirror onthe front -passenger
side moves tothe preset parking position.
X Use adjustmen tbutton =toadjust the
exter iormirror toaposition thatallows you
to see therear wheel andthecurb.
The parking position isstored. 104
Mirr
orsSeats, steering wheel and mirrors

3
T
Parking lamps,license plateand
inst rument clusterlighting
4c Automaticheadlamp mode/daytime
runnin glamps
5L Low-beam/high- beamheadlamps
BR Rearfoglamp
The turn signals, high-beam headlamps and
the high-beam flasherareoperated usingthe
combinat ionswitch (Ypage 111).
! Ifthe batter yhas been excess ively
discharged, theparking lampsorstandin g
lamps areautomatically switchedoffto
enable thenext engine start.Always park
your vehic lesafely andsufficien tlylit
acc ordin gto legal standard s.Av oid the
con tinuous useofthe T parkinglamps
for sever alhours. Ifpossible ,switc hon the
X rightorthe W leftstandin glamp.
The exterior lighting(exc eptthepark ing/
st andin glamps) switchesoffautom atically if
you:
R remo vethe SmartKey fromt heignition lock
R open thedriver's doorwiththeSmartK ey
in position 0
If you hear awarning tonewhen youleave the
vehicle, thelights maystillbeswitched on.
X Turn thelight switch toc orÃ.
Low -beam headlam ps X
To switch onthe low-be amheadlam ps:
turn theSmartK eyinthe ignition lockto
position 2or start theengine.
X Turn thelight switch toL.
The L indicator lampinthe instrumen t
cluster lightsup.
Daytime runninglamps Daytime
runninglampsinCanada
The daytime runninglampsfunctionis
required bylaw inCanada .Itc ann otthere fore
be deac tivate d. X
Turn thelight switchtoc orÃ.
Wit hth een gin erun ning:depen dingon the
ambie ntlight ,th edayti merunninglamps or
th elow- beam headlam psare swit ched on.
When thelow- beam headlam psare
swit ched on,th eL indicat orlamp inthe
ins trumen tcluster lightsup.
When theengineisrunn ingand thevehic leis
st ation ary:ifyou mov ethe selec torlever from
a drive positiontoP,the daytime running
lamps/ low-beamheadlamps goout after
thr ee min utes.
When theengineisrunn ing,thevehic leis
st ation aryand inhigh ambien tlight
bright ness:ifyou turnthe light switch
to T, thedaytime runninglampsandthe
parking lampsareswitched on.
If the engine isrunning andyouturn thelight
switch toL, themanual settingstake
precedence overthedaytime runninglamps.
Daytime runninglampsinthe USA
In the USA, thedaytime runninglampsare
deactivated upondelivery fromthefactory.
X To activate thedayt imerunning
lamps: activate thedaytime runninglamps
funct ioninthe on-board computer
(Y page 234).
X Turn thelight switch toc orÃ.
With theengine running: depending onthe
ambient light,thedaytime runninglampsor
the low-beam headlampsareswitched on.
When thelow-beam headlampsare
switched on,the L indicator lampinthe
instrumen tcluster lightsup.
If the engineisrunn ingand youturnthe light
switch toT orL, themanual settings
take precedence overthedaytime running
lamps. Exterior
lighting
109Lights and windshield wipers

X
To switcho ff:set the rocker switch tothe
| position.
The interior lighting automatical lyswitches
on ifyou :
R unlock thevehicl e
R open adoor
R remove theSmartKey fromtheignitio nlock
The interior lightisactivated forashort while
when theSmart Keyisremoved fromthe
ignition lock.Youcanactivate thisdelay ed
switch- offusing theon-board computer
(Y page 235).
Manua linterior lighting control X
To switch thefront interior lighting on:
set the rock erswitch tothe c position.
X To switch thefront interior lighting off:
set the rock erswitch tothe | position.
X To switch therear interior lighting on/
off: press theu button .
X To switch thereading lampson/off:
press thep button . Crash-
responsive emergency lighting
The interior lighting isactivated automatically
if the vehicle isinvolved inan accident .
X To switch offthe crash- responsive
emergency lighting:pressthehazard
warning lampbutton .
or
X Lock andthen unlock thevehicle usingthe
Smart Key. Replacing
bulbs Import
antsafety notes
Xenon bulbs If
your vehicle isequipped withXenon bulbs,
you can recogn izethis bythe following: the
cone oflight from theXenon bulbsmoves
from thetop tothe bottom andback again when
youstart theengine. Forthis tobe
observed, thelights mustbeswitched on
before startingthe engine. G
DANGER Xenon
bulbscarryahigh voltage. Youcould
get anelectric shockandbeseriously oreven
fatally injured ifyou touch theelectric
cont acts onXenon bulbs.Therefore, never
remove thecover fromXenon bulbs.
Do not change Xenonbulbsyourself, buthave
them replaced ataquali fiedspecialist
workshop whichhasthenecessary specialist
knowledge andtools tocarry outthework
required.
Mercedes-B enzrecommen dsthat youusean
authorized Mercedes-B enzCenter forthis
purpose. Inparticular, workrelevant tosafety
or on safety-related systemsmustbecarried
out ataquali fiedspecialist workshop.
Bulbs andlamps areanimportant aspectof
vehicle safety.Youmust therefor emake sure
that these functioncorrec tlyatall times.
Have theheadlamp settingcheck edregularly .
Other bulbs There
arebulbs otherthantheXenon bulbs
that youcann otreplace. Replaceonly the
bulbs listed (Ypage 115). Havethebulbs that
you cann otreplace yourself changed ata
quali fiedspecialist workshop.
Mercedes-B enzrecomm endsthatyouusean
authorized Mercedes-B enzCenter forthis
purpose. Inparticular, workrelevant tosafety
or on safety-related systemsmustbecarried
out ataquali fiedspecialist workshop.
If you require assistance changingbulbs,
consult aquali fiedspecialist workshop.
Do not touch theglass tubeofnew bulbs with
your bare hands. Evenminor contamination
can burn intotheglass surface andreduce
the service lifeofthe bulbs. Always usealint-
free cloth oronly touch thebase ofthe bulb
when installing.
Only usebulbs ofthe correc ttype. 114
Rep
lacingbul bsLights an dwindshield wipers

X
Remo vetheSm artKey from theign ition
loc k.
X Fo ldwiper arm:away from therear
win dow untilit en gage s.
X Pos ition wiper blade;atarig ht ang leto
wiper arm:.
X Ho ldwiper arm:and presswiper
blade ;inthedir ection ofthearr ow until
it rel ease s.
X Remo vewiper blade;.
Inst alling thewipe rblad e
X Place newwiper blade;ontowiper
arm :.
X Hold wiper arm:and press wiper
blade ;inthe opposit edirec tiontothe
arrow untilit engage s.
X Make surethatwiper blade;isseated
cor rectly.
X Posit ionwiper blade;parallel towiper
arm :.
X Fold wiper arm:back ontothe rear
window. Problem
swith thewindshield wipers
Th ewindshield wipersareobstr ucted Leaves
orsno w,for examp le,may be
obst ructingthe windsh ieldwiper movement.
The wiper motorhas been deact ivated . X
For safet yreason s,you should removethe
Smar tKey from theignit ionlock .
or
X Swit choff the engin eusing theStart/ Stop
butt onand open thedriver 'sdoor.
X Remove thecause ofthe obst ruction.
X Swit chthe windsh ieldwipers backon.
Th ewindshield wipersareinoper ative The
windsh ieldwiper driveismalfun ctionin g.
X Selec tanothe rwiper speed onthe
com binat ionswitc h.
X Have thewinds hieldwipers checkedata
qualified specialist workshop.
Th espr aynozz lesaremisa ligned The
winds hieldwasher fluidfromt hespray
nozz lesnolonger hitsthecent erofthe
windshield. Thespray nozzlesare misaligned.
X Have thespray nozzlesadjusted ata
qual ified specialist workshop. 120
Windshield
wipersLights and windshield wipers

X
Insert Start/S topbutton :into ignition
lock ;. i
When
youinsert Start/S topbutton :
into ignition lock;,thesystem requiresa
detection timeofapp roximately two
seconds beforeyoucan useStart/S top
button :. Start/St
opbutton
= USA only
? Cana daonly
X Positio n0: ifStart/S topbutton :has not
yet been pressed ,this corresponds tothe
SmartKey beingremoved fromtheignition.
X Positio n1: press Start/S topbutton :
once.
You cannow activate thewindshi eld
wip ers, forexampl e. i
If
you press Start/S topbutton :twice
when inthis positio n,the powe rsupply is
deac tivat ed again .
X Pos ition 2(ign ition ):pre ssStart /S top
but ton: twice. i
If
you pressStart /S topbut ton: once
when inthis posi tion and thedriv er'sdoor
is open ,th epower supplyis deac tivat ed
again .
As soo nasthe ignition isswitched on,allthe
indicator lampsinthe instrument clusterlight
up. Ifan indicator lampdoesnotgoout after
the engine isstarted orifit lights upwhile the
vehicle isin motion, see(Ypage 271). Star
ting theengin e
Importa ntsafety notes G
WARNING Inhalation
ofexhaust gasishazardous toyour
health. Allexhaust gascont ains carbon
monoxide (CO),andinhaling itcan cause
unconsciousness andpossible death.
Do not run theengine inconfined areas(such
as agarage) whicharenot properly ventilated.
If you think thatexhaust gasfumes are
entering thevehicle whiledriving, havethe
cause determined andcorrect ed
immediately .Ify ou must driveunder these
condit ions,drive onlywith atleast one
window fullyopen atall times. i
Vehicles
withagasoline engine:the
catalytic converter preheats forupto30
seconds afteracold start.Durin gth is time,
th een gin esoun dmay bediff ere nt.
Aut oma tic trans mission X
Sh ift thetrans mis sion toposi tion P.
The trans mis sion position disp layinthe
mult ifunction disp laysho wsP
(Y page 145). i
You
canalso start theen gin ewhen the
tr ans mis sion isin posi tion N.
St artin gpr ocedu rewith theSm artKey X
To star tag asolineeng ine:turn the
SmartKey toposi tion 3in the ignition lock
(Y pag e139) andrelease itas soon asthe
engine isrunning.
X To start adiesel engine: turnthe
Smar tKey toposit ion2in the ignit ionlock
(Y page 139).
The % preglow indicatorlamp inthe
inst rumen tcluster lightsup.
X When the% preglo windic atorlamp
goes out,turnthe SmartK eytoposition 3
(Y page 139)andrelease itas soon asthe
engine isrunning. 140
DrivingDriving and parking