2012 MERCEDES-BENZ M-Class roof

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

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

Useful
information
i This
Operat or'sManual describesall
models andallstan dard andoption al
equipment ofyour vehicle available atthe
time ofpublication ofthe Operat or's
Manual. Country-specificdiffer encesare
possible. Pleasenotethat your vehicle may
not beequipped withallfeature s
descr ibed. Thisalso applies tosafet y-
related systemsand func tions. i
Please
readtheinfor mation onqualified
specialist workshops(Ypage 25). Overview
ofclimat econtrol systems Impor
tant safet ynotes G
WARN
ING Sever
econ dition s(e.g. strong airpollution )
may require replacem entofthe filter before
its scheduled replacementinterval. Aclogged
filt er will reduc ethe airvolume tothe interior
and thewindows couldfogup,impairin g
visibilit yand endan geringyou and others.
Have ablock edfilterreplac edataMerc edes-
Ben zCent eras soon aspossible. G
WARN
ING Follow
therecom mended settings forheating
and cooling givenonthe following pages.
Other wise, thewindows couldfogup,
impairing visibilityandendanger ingyou and
other s.
Autom aticclimate control controls the
temper atureandthehumidity ofthe vehicle
int erior andfilters outundesirable
substanc esfrom theair.
Autom aticclimate control isonly operation al
when theengine isrunn ing9
.O ptimum
operation isonly achieved ifyou drive withthe
side windows andsliding sunroof /panorama
roof with power tilt/sliding panelclosed. i
Vent
ilate thevehicle forabrief period
during warmweather, e.g.using the
con venien ceopenin gfeature (Ypage 86).
This willspeed upthe coolin gproces sand
the desired vehicleinterior temper ature
will bereached morequickly. i
The
integrated filtercanfilter outmost
partic lesofdust andcomplet elyfilter sout
pollen. Aclogged filterreduc esthe amoun t
of air supplied tothe vehic leint erior .For
this reason, youshould alwaysobserve the
inter valforreplacing thefilter, which is
specified inthe Servic eBooklet .Asit
depends onenvironmen talconditions, e.g.
heavy airpollu tion, theinterval maybe
shorter thanstated inthe Service Booklet.
9 The residua lheat function canonly beactivated/deactivated whentheignition isswitched off. 122
Overview
ofclimat econ trol systemsClimate control

road
,wea ther andtraffic conditions permit.In
some jurisdictions, itis forbid denfordrivers
to use mobil ephones whiledrivi ng.
Only opera teCOMAND (Cockpit Manag ement
and Data System) incompli ancewithalllega l
requ irements andwhen theroad ,wea ther and
traffic conditions permit.Youmay otherwi se
not beableto observe thetraffic conditions,
endange ringyourself andothers.
Reme mberthatyourvehicle coversa distanc e
of 44 feet (approximately 14m)asecon d
when itis travelin gat only 30mph
(approximately 50km/ h).
Drive sensibly –save fuel Obse
rvethe followi ngtips tosave fuel:
X The tires shouldalwa ysbe infla tedtothe
recomme ndedtirepres sure.
X Re move unneces saryloads.
X Re move roofcarrierswhe nthey arenot
needed.
X Warm upthe engine atlow engine speeds.
X Avoid frequent acceleration orbraking.
X Have allmaintenanc ework carried outas
indicated bythe service intervals inthe
Service Booklet orby the service interval
displa y.
Fuel consumption alsoincreases when
driving incold weather, instop-and- gotraffic
and inmountainous terrain.
Drinking anddriving G
WARNING Drink
ingand driving and/or takingdrugsand
driving arevery dangerous combinations.
Even asmall amount ofalcohol ordrugs can
affect yourreflexes, perceptions and
judgment.
The possibili tyof aserious oreven fatal
accident aregreatly increased whenyoudrink
or take drugs anddrive. Do
not drink ortake drugs anddrive orallow
anyone todrive whohasbeen drinking or
taking drugs.
Pedals G
WARNING Make
sureabsolu telynoobject sare
obstructin gthe pedals' rangeofmovement .
Keep thedriver's footwell clearofall
obstacles. Ifthere areany floormats or
carpets inthe footwell, makesurethatthe
pedals stillhave sufficient clearance.
During sudden drivingorbraking maneuvers,
the object scould getcaught between the
pedals. Youcould thennolonger brakeor
accelerate. Thiscould leadtoaccidents and
injury.
Rolling withtheengine switched off G
WARNING There
isno power assistance forthe steering
and thebrake whentheengine isnot running.
Steerin gand braking requires significantly
more effort andyoucould losecontrolofthe
vehicle andcause anaccident asaresult.
Do not turn offthe engine whilethevehicle is
in motion.
Exhaust check G
WARNING Inhalation
ofexhaust gasishazardous toyour
health. Allexhaust gascont ains carbon
monoxide (CO),andinhaling itcan cause
unconsc iousness andpossible death.
Do not run theengine inconfin edareas (such
as agarage) whicharenot properly ventilated.
If you think thatexhaust gasfumes are
enterin gthe vehicle whiledriving, havethe
cause determined andcorrect ed
immediately. Ifyou must driveunder these
condition s,drive onlywith atleast one
window fullyopen atall times. 158
Driving
tipsDriving and parking

Winter
driving
Gene ralnote s G
WARNING If
the vehicl ebecome strappe din snow,
ensure thatsnow iskept away from the
exhau stpip eand from aroundthe vehicl eas
long asthe engine isrunning. Otherwise,
poi sonou scarbo nmonoxide (CO)mayenter
the vehicle, resulting inloss ofconsc iousness
and even death.
To assure sufficient freshairvent ilation, open
a window slightlyonthe side ofthe vehicle
not facing thewind.
At the onset ofwinter, haveyourvehicle
winterproof edataquali fiedspecialist
workshop, e.g.atan authorized Mercedes-
Benz Center. i
Vehicles
withadiesel engine: donot
cover theradiator, e.g.with aprotec tive
cover. Themeasuring functionofthe
Onboard Diagnosis Systemmayotherwise
provide inaccurate values.Someofthese
values arerequired bylaw and must
therefor ealwa ysbe accurate.
Driving withsumm ertires Observe
thenotesinthe "Winter operation"
section (Ypage 352).
Slippery roadsurfa ces G
WARNING The
outside temperature indicatorisnot
designed toserve asan ice-warnin gdevice
and istherefor eunsuitable forthat purpose.
Indicated temperatures justabove the
freezin gpoint donot guarantee thattheroad
surface isfree ofice. The road maystillbeicy,
especially inwooded areasoron bridges. G
WARNING On
slippery roadsurfaces, neverdownshift in
order toobtain braking action.Thiscould result
indrive wheel slipand reduced vehicle
cont rol.Your vehicle's ABSwillnotprevent
this type ofloss ofcont rol.
Drive particularly carefullyonslippery road
surfaces. Avoidsudden acceleration, steering
and braking maneuvers. Donot use thecruise
cont rolorDIS TRONIC PLUS.
If the vehicle threaten sto skid orcann otbe
stopped whenmoving atlow speed:
X Shift thetrans mission toposition N. i
For
more informat ionondriving with
snow chains, see(Ypage 353). G
WARNING Make
surethatyoudonot endanger other
road users whenyouapply thebrakes. Off-r
oaddriving
Import antsafety notes G
WARNING Grains
ofsand, particles ofdirt and other
abrasive materials canenter thebrake
system. Thiscanlead toexcessive wearand
unpredictable brakingefficienc y.
Aft erthe brakes havebeen exposed todirty
condit ions,havethem check edand cleaned
at aquali fiedspecialist workshop, e.g.an
authorized Mercedes-B enzCenter.
Otherwise, thereisarisk that braking power
may beinsufficient inthe event ofan
emergenc y,or that thebraking effectmaybe
unpredictable. G
WARNING Do
not load items onthe basic carrier bars.It
may cause instability duringsomemaneuvers
which couldresult inan accident .
Drive slowly inunkn ownterrain. Thiswill
make iteasier torecogn izeunexpect ed
obstacles andavoid damage tothe vehicle.
To help avoid thevehicle rollingover,never
turn itaround onsteep inclines. Ifthe vehicle 162
Driving
tipsDriving and parking

cannot
complete the attem ptedclimb, back it
dow ninr everse gear.
Do not drive along theside ofaslope. The
vehicle mightotherwiserollover. Ifin doing so
the vehicle beginstoshow aten dency toroll,
immediately steerintoaline ofgravity
(straight upordownhill).
Never letthe vehicle rollbackwards inidle.
You may losecontrol ofthe vehicle ifyou use
only theservic ebrake. Forinfor mation on
driving downhill, see"Drivin gdownhill". G
WARN
ING Vehicles
withairsuspension program:Please
be aware thatbyraising thevehicle level,the
cent erofgravity alsorises. Therefor e,alway s
ensure thatthevehicle levelisas low as
possible. Withhigher rideheight theESP®
may activat eearlier incert ainsituation s. G
WARN
ING Do
not reduce thetire inflation pressure
before driving through sand. However, ifyou
do so, remember tocorr ectthe tire inflation
pressure beforecontinuin gyour trip.Drivin g
with reduced tireinflation pressure increases
the risk oflosing control ofthe vehicle and
rolling over.
General notes Read
thissect ioncarefully beforedriving your
vehicle off-road. Practicebydriving overmore
gent leoff- road terrainfirst .
Familiarize yourselfwiththecharact eristics
of your vehicle andthegear shiftoperation
before driving through difficult terrain.
The following drivingsystems arespecially
adapted tooff- road driving:
R Off- road ABS(Ypage 61)
R AIRMA TICpackage (vehiclelevel)
(Y page 180)
R DS R(Downh illSpeed Regulation)
(Y page 208) Observe
thefollowing notes:
R Stop the vehicle beforestartingtodrive
along anoff- road route.
R For vehicles withAIRMA TICpackage:
select avehicle levelthatissuitable forthe
off- road terrain. Make surethere isalway s
sufficien tground clearanc eto preven t
damage tothe vehicle.
R Check thatitems ofluggage andloads are
stowed safelyandarewell secured
(Y page 288).
R Always keeptheengine runningand ingear
when driving onadownhill gradient.
Ac tivat eDS R(Ypage 208).
R Always keepthedoors, tailgate, windows
and sliding sunroof closedwhiledriving.
R Adapt yourspeed tothe terrain. The
rougher, steeperormore rutsonthe
terr ain, theslower yourspeed should be.
R Driv eslowly andatan even speed through
the water. Ensure thatabow wave doesnot
form asyou drive.
R Driv ewith extreme careonunkn ownoff-
road routes wherevisibility ispoor. For
safety reasons ,get out ofthe vehicle first
and survey theoff-road route.
R Look outforobstac lessuch asrock s,holes,
tree stumps andfurrows.
R Check thedepth ofwater before fording
rivers andstreams.
R When fording,do not stop anddonot
switc hoff the engin e.
R On sand, drivequickly tooverc omethe
rolling resistance. Otherwise, thevehicle
could digitself intothe sand.
R Do not jump withthevehicle asthis will
int errupt thevehicle's propulsion.
R Always keeptheengin erunn ingand ingear
when drivingon aslope.
R Do not shift theautomatic transmission to
tran smission positionN. Driving
tips
163Driving and parking Z

Sid
evie w Top
view
Fro ntsenso rs Ce
nter Appr
oxim ately40 in
(a ppr oxim ately100 cm) Co
rners Appr
oxim ately24 in
(a ppr oxim ately60 cm) Rear
senso rs Ce
nter Appr
oxim ately48 in
(a ppr oxim ately120 cm) Co
rners Appr
oxim ately32 in
(a ppr oxim ately80 cm) !
Whe npark ing,pay particular attentio nt o
object sabove orbelow thesensors, such
as flower potsortrailer drawbars.
PARKTRONIC doesnotdetect suchobject s
when theyareinthe immediate vicinityof
the vehicle. Youcould damage thevehicle
or the object s.
The sensors maynotdetect snowandother
object sthat absorb ultrasonic waves. Ultrasonic
sourcessuchasan automatic
car wash, thecompressed- airbrakes ona
truck orapneumatic drillcould cause
PARKTRONIC tomalfunct ion.
PARKTRONIC maynotfunct ioncorrec tlyon
uneven terrain.
Minimum distance Center Approx
imately 8in
(approx imately 20cm) Corne
rs Appr
oxim ately 6in
(approx imately 15cm) If
ther eis an obst acle within thisrange ,the
relevan twarn ing displ ayslight upand a
warn ingtone soun ds.Ifth edist ancefalls
below themin imum ,th edist ancemay no
lon ger besho wn.
Wa rning displa ys The
warn ingdispl aysshowthedist ance
bet ween thesen sorsand theo bstac le.The
warning displayforthe fron tarea isloca ted
on the dashboa rdabo vethe center airvents.
The warning displayforthe rear area isin the
roof lamp inthe rear compartment. Warning
displayforthe front area
: Segments onthe left-hand sideofthe
vehicl e
; Segments onthe right-hand sideofthe
vehicl e
= Segments showingopera tional readiness
The warning displayforeach sideofthe
vehicl eis divi ded into fiveyellow and twored 184
Drivi
ngsystemsDriving and parking

X
Attach hook= tothe cargo
comp artment' sup pers eal ?.
X To close: detach hook=from thecargo
compart ment'supper seal?.
X Fasten hook=tothe brack eton the
underside ofthe trun kfloor.
X Fold thetrunk floor down.
X Press thetrunk floor down ;untilit
eng ages. Roof
carrier
Imp ortant safety notes G
WARN
ING Only
usecarriers when thebasic carrierbars
have been complete lymoun ted.Theleftand
right roofrails areonly stabilized bymean sof
the basic carrierbars moun ted.
Follow themanuf acturer' sinsta llati on
ins truc tions. Othe rwise, animp roperly
atta chedcar riero rits load cou ldbe come
de tach edfromt hevehicle.
Do not exceed themaximum roofload of
220 lb(100 kg).
Take intoconsideration thatwhen theroof is
loaded, thehandling characterist icsare
different fromthose whenoperating the
vehicle without theroof loaded.
! Mercedes-Ben zrecomm endsthatyou
only useroof carriers thathave been tested
and approved forMercedes- Benzvehicles. This
helps topreven tdamage tothe
veh icle.
Posi tionthe load onthe roof carrier insuch
a way that thevehicle willnotsustain
damage evenwhen itis in motion.
Depending onthe vehicle equipment,
ensure thatwhen theroof carrier is
installed youcan:
R raise thesliding sunroof fully
R open thepanorama roofwith power tilt/
sliding panelfully
R open thetailgate fully
Attaching theroof carrier X
Secure theroof carrier toroof rails :.
X Observe themanufacturer's installation
instruct ions. Features
Cup
holders
Import antsafety notes G
WARNING In
order tohelp prevent spillingliquidson
vehicle occupants and/orvehicleequipment,
only usecont ainers thatfitinto thecup
holder. Uselidsonopen containers anddo
not fillcont ainers toah eight where the
con tents,especially hotliquids, couldspill
during braking ,vehicle maneuvers, orinan
acciden t.Liquids spilledonvehicle occupant s
may cause serious personal injury.Liquids Featur
es
293Stowing and features
Z