2012 MERCEDES-BENZ M-Class lock

Using
theSma rtKey i
The
Smar tKeymust beclose tothe
driver' sdoor handle.
X Point thetipofthe Smar tKeyatthe driver' s
door handle.
X Press andhold the& buttonunt ilthe
side windows andthesliding sunrooforthe
panorama roofwith power tilt/sliding
panel arefully closed.
X Make surethatallthe side windows andthe
sliding sunroof orpanorama roofwith
power tilt/sliding panelareclosed.
On vehicles withapanorama roofwith power
tilt/sliding panel:
X Press andhold the& button againuntil
the roller sunblinds ofthe panorama roof
with power tilt/sliding panelclose.
X To interru ptconve nienceclosi ng:
release the& button.
Using KEYLESS-GO The
KEYLE SS-GO key must beoutside the
vehicle. Allthe doors mustbeclosed. X
Touch recessed sensorsurface :onthe
door handle untiltheside windows andthe
sliding sunroof orthe panorama roofwith
power tilt/sliding panelarefully closed. i
Make
sureyouonly touch recessed
sensor surface :.
X Make surethatallthe side windows andthe
sliding sunroof orpanorama roofwith
power tilt/sliding panelareclosed. On
vehicles withapanorama roofwith power
tilt/sliding panel:
X Touch recessed sensorsurface :onthe
door handle againuntiltheroller sunblinds
of the panorama roofwith power tilt/
sliding panelclose.
X To interru ptconve nienceclosi ng:
release recessed sensorsurface :onthe
door handle. Resetting
theside window s
If aside window cannolonger beclosed fully,
you must reset it.
X Close allthe doors.
X Turn theSmartK eytoposition 1or 2in the
ignition lock.
X Pull thecorresponding switchonthe door
cont rolpanel untiltheside window is
completely closed(Ypage 85).
X Hold theswitch foranadditional second.
If the side window opensagainslightly:
X Immediately pullthecorresponding switch
on the door controlpanel untiltheside
window iscompletely closed(Ypage 85).
X Hold theswitch foranadditional second.
X Ifthe corresponding sidewindow remains
closed afterthebutton hasbeen released,
the side window hasbeen reset correct ly.
If this isnot thecase, repeat thesteps
above again. Problems
withtheside window s
Problem: aside window cannotbeclosed
because itis blocked byobject s,e.g.
leaves inthewindow guide.
X Remove theobje cts.
X Close theside window.
Problem :asidewindow cannotbeclosed
and youcannot seethecause. Side
windows
87Opening/closing Z

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

i
If
you press the2 switch beyond the
point ofresistance, anautoma ticopening/
closing process isstarted inthe
corresponding direction.Youcanstop
automa ticopera tionbyopera tingthe
switch again.
When raisingthe roof, automa ticopera tion
is only availableifthe sliding sunroof isin
the closed position. Operating
thesunbli ndsforthe
panorama roofwith powe rtilt/slid ing
pa nel
Gener alnotes The
roller sunblin dsshield thevehic leint erior
from sunligh t.The two roller sunblin dscan
only beopen edand close dtog eth erwhen the
panor amaroofwith power tilt/slidin gpanel
is close d. G
WARN
ING When
extendin gthe roller sunblin ds,make
sure noone isin danger ofbeing injured by
the extendin gproc edure. Theextendin gof the
roller sunblin dscan beimmediat elyhalted by
releasin gthe switc h.
Opening andclosing Over
head control panel
: Toraise
; Toopen
= Toclose X
Turn theSmar tKey toposit ion1or 2in the
ignit ionlock .
X Press orpull the2 switchin the
cor respo ndingdirec tion. i
If
you press the2 switchbeyond the
point ofresist ance,an automat icopen ing/
closin gproc essisstar ted inthe
cor respon dingdirec tion.You can stop
automatic operationbyoperating the
switch again.
Resetting thepanora maroof with
power tilt/sliding panelandtheroller
sunblinds Reset
thepanorama roofwith power tilt/
sliding panelandtheroller sunblinds ifthe
panorama roofwith power tilt/sliding panel
or the roller sunblinds donot move smoothly.
X Turn theSmart Keytoposition 1or 2in the
ignition lock.
X Pull the2 switch repeatedly tothe point
of resistanc ein the direction ofarrow =
until thepanorama roofwith power tilt/
sliding panelisfully closed.
X Keep switch 2pulled foranadditional
second.
X Pull the2 switch repeatedly tothe point
of resistanc ein the direction ofarrow =
until theroller sunblinds arefully closed.
X Keep switch 2pulled foranadditional
second.
X Make surethatthepanorama roofwith
power tilt/sliding panel(Ypage 89)and the
roller sunblinds (Ypage 90)can befully
opened again.
X Ifthis isnot thecase, repeat thesteps
above again.
! Ifthe panorama roofwith power tilt/
sliding panelandtheroller sunblind cannot
be fully opened orclosed afterresett ing,
cont actaquali fiedspecialist workshop. 90
Sliding
sunroofOpening/closing

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

X
Pull theleft orright release lever;
upwards inthe direction ofthe arrow until
the relevant backrest :isfully released.
X Pull thebackrest :forwards inthe
direction ofthe arrow andallow itto
engage.
X Lean backfirmly against thebackrest :to
ensure itis engaged. Adju
sting thefour- waylumbar
supp ort
You canadjust thecont ourofthe fron tseat
backrest sindividually toprovide optimum
support foryour back. :
Toraise thebackrest contour
; Tosoften thebackrest contour
= Tolower thebackrest contour
? Toharden thebackrest contour Switching
theseat heating on/off
Switching on/off G
WARNIN
G Repeatedly
settingthe seat heating tolevel
3 may result inexcess iveseat temperat ures.
The health ofpassengers thathave limited
temperat uresensit ivityoralimited abilityto
react toexcess ivelyhightemperat uresmay
be affect edorthey mayeven suffer burn-lik e
injuries. Therefore, donot use seat heating
level 3repeatedly. The
three redindicator lampsinthe button
indicate theheating levelyouhave selected. i
If
the batter yvoltage istoo low, theseat
heating mayswitch off. Driver
'sand front-passen gerseat Rear-compart
mentseats
The system automatically switchesdown
from level3to level 2after approximately
eight minutes.
The system automatically switchesdown
from level2to level 1after approximately ten
minutes.
The system automatically switchesoff
approximately 35minutes afteritis set to
level 1.
X Make surethattheSmart Keyisin position
1 or 2in the ignition lock.
X To switch on:press button :repeatedly
until thedesired heating levelisset.
X To switch off:press button :repeatedly
until allthe indicator lampsgoout. Seats
99Seats, steering wheel and mirrors Z

Problems
withtheseat heating The
seat heating 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. Switching
theseat ventilation on/off
Switching on/off The
three blueindicator lampsinthe buttons
indicate thevent ilation levelyouhave
selected. i
If
the battery voltage istoo low, theseat
vent ilation mayswitch off. X
Make surethattheSmartK eyisin position
2 in the ignition lock.
X To switch on:press button :repeatedly
until thedesired ventilation levelisset. i
You
canopen theside windows andthe
sliding sunroof usingthe"Convenience
opening" feature(Ypage 86).Theseat
vent ilation ofthe driver's seat
automatically switchestothe highest level.
X To switch off:press button :repeatedly
until allthe indicator lampsgoout. Problems
withtheseat ventilation The
seat ventilation 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 Import
antsafety notes G
WARNING Do
not adjust thesteering wheelwhiledriving.
Adjust ingthe steering wheelwhiledriving, or
driving without thesteering wheeladjustment
feature lockedcouldcause thedriver tolose
cont rolofthe vehicle.
The electrical steeringwheeladjustment
feature canbeoperated atany time.
Therefore, donot leave children unattended
in the vehicle, orwith access toan unlocked
vehicle. Achild's unsupervised accesstoa
vehicle couldresult inan accident and/or
serious personal injury. 100
Steering
wheelSeats, steering wheel and mirrors