ad blue MERCEDES-BENZ M-Class 2012 W166 Owner's Manual

Symbols
Registered trademarks:
R BabySmart™ is a registered trademark of
the Siemens Automotive Corp.
R Bluetooth ®
is a registered trademark of the
Bluetooth SIG Inc.
R DTS is a registered trademark of DTS, Inc.
R Dolby and MLP are registered trademarks
of Dolby Laboratories.
R ESP ®
and PRE-SAFE ®
are registered
trademarks of Daimler AG.
R HomeLink ®
is a registered trademark of
Prince, a Johnson Controls Company.
R iPod ®
and iTunes ®
are registered
trademarks of Apple Inc., registered in the
USA and in other countries.
R Logic 7 ®
is a registered trademark of
Harman International Industries,
Incorporated.
R Microsoft ®
is a registered trademark of the
Microsoft Corporation in the USA and in
other countries.
R SIRIUS and associated brands are
registered trademarks of SIRIUS XM Radio
Inc.
R HD Radio and associated brands are
registered trademarks of the iBiquity
Digital Corporation.
R Windows Media ®
is a registered trademark
of the Microsoft Corporation in the USA and
in other countries.
R Gracenote ®
is a registered trademark of
Gracenote, Inc.
R ZagatSurvey ®
and associated brands are
registered trademarks of Zagat.
In this Operator's Manual, you will find the
following symbols:GWARNING
Warning notes draw your attention to hazards
that endanger your health or life, or the health
or life of others.
! These warning notes draw your attention
to hazards that could cause damage to your
vehicle.
i This symbol indicates useful instructions
or further information that could be helpful
to you.XThis symbol designates an
instruction you must follow.XSeveral consecutive symbols
indicate an instruction with several
steps.Y PageThis symbol tells you where you
can find further information on a
topic.YYThis symbol indicates a warning or
an instruction that is continued on
the next page.DisplayThis font indicates a display
message in the multifunction
display/COMAND display.
Parts of the software in the vehicle are
subject to copyright according to ©
2005
The FreeType Project
http://www.freetype.org. All rights
reserved.

Assis
tance men u(on-boa rd
comp uter) .......................................... 232
ASS YST PLUS
see ASSYST PLUSserviceinterva l
dis pla y
ATA (Anti-Theft Alarm syste m)
Activating/d eactivating ................... 68
Function ...........................................68
Swi tching offthe alarm .................... 68
ATTENTIO NASSIST
Act ivating/deact ivating................. 232
Displ aymessa ge............................ 258
Function/notes ............................. 194
Audio menu(on-bo ardcomputer) ....229
Audio system
see sepa rateoperating instructio ns
Authori zedMerce des-Be nzCenter
see Qualified speci alist worksh op
AUTO lights
Displ aymessa ge............................ 253
see Ligh ts
Automatic headlampmode.............. 110
Automatic transmission
Cha nging gear............................... 146
DIRECT SELECT lever..................... 144
Displ aymessa ge............................ 265
Driving tips.................................... 147
Emergency runningmode.............. 149
Kickdow n....................................... 147
Prob lem(malfunction) ................... 149
Pul ling away ................................... 141
Shift range s................................... 147
Starting theengine ........................ 140
Steering wheelpad dleshifte rs...... 147
Trai lertowi ng................................. 147
Transmi ssionposition display ........145
Transm issionposi tions .................. 146
Automatic transmission
emerge ncymode ............................ ...149 B
Back
support
see Lumb arsup port
Backup lamp
Displ aymessa ge............................ 252
Bag hook............................................ 288Ball
couplin g
Install ing........................................ 214
Rem oving ....................................... 218
Storing ........................................... 218
BAS (Brake AssistSyste m)................. 61
Basic settings
see Settings
BAS PLUS(Brake AssistSyste m
PLU S).................................................... 62
Battery (SmartKe y)
Che cking .............. ............................ 76
Importa ntsafe tynotes .................... 75
Rep lacing ......................................... 76
Battery (vehicle)
Cha rging ........................................ 340
Displ aymessa ge............................ 256
Importa ntsafe tynotes .................. 338
Ju mp starting ................................. 341
Belt
see Seat belts
Blin dSpot Assist
Activa ting/d eactiva ting................. 232
Notes/fu nction.............................. 198
Trai lertowi ng................................. 200
see Active BlindSpotAssist
BlueTE C(D EF ).................................... 387
Brake AssistSyste m
see BAS (Brake AssistSystem)
Brake fluid
Displ aymessa ge............................ 244
Notes ............................................. 389
Brake fluidlevel................................ 316
Brake lamps
Cha nging bulbs.............................. 117
Displ aymessa ge............................ 251
Brakes
ABS .................................................. 61
BAS .................................................. 61
BAS PLUS ........................................ 62
Brake fluid(notes) ......................... 389
Displ aymessa ge............................ 239
Driving tips.................................... 159
Importa ntsafe tynotes .................. 159
Mai ntenance .................................. 160
Warni nglamp ....... ..................... ..... 271 In
dex
5

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

Problems
withfuelandthefuel tank Problem Possible
causes/co nsequences andM Solutions
Fuel
isleaking fromthe
vehicle. G
Risk
ofexplosion orfire The
fuel lineorthe fuel tank isdefective.
X Turn theSmartK eytoposition 0(Ypage 139)inthe ignition lock
immediately andremove it.
X Do not restart theengine underanycircumst ances.
X Consult aqual ified specialist workshop. The
fuel filler flap
cannot beopened. The
fuel filler flapisnot unlocked.
or
The SmartK eybattery isdischarged.
X Unlock thevehicle (Ypage 72).
or
X Unlock thevehicle usingthemechanical key(Ypage 75). The
fuel filler flapisunlocked, buttheopening mechanism is
jammed.
X Consult aqual ified specialist workshop. The
engine willnot
start. The
fuel tank ofavehicle withadiesel engine hasbeen run
completely dry.
X Refuel thevehicle withatleast 5.3USqt(5liters) ofdiesel.
X Turn theignition onfor atleast 10seconds (Ypage 139).
X Start theengine continuously forupto10 seconds untilitruns
smoothly.
If the engine doesnotstart:
X Turn theignition onagain forapproximately 10seconds
(Y page 139).
X Start theengine againcontinuously forupto10 seconds until
it runs smoothly.
If the engine doesnotstart after three attempt s:
X Consult aqual ified specialist workshop. DEF
Import antnotes onuse To
funct ionproperly, BlueTECexhaustgas
aftert reatment mustbeoperated withthe
reducing agentDEF. When
theDEFs upply hasalmo strun out,th e Che
ckAdditiveSee Operator's Man
ual mes
sage issho wninthe
mult ifunction disp lay.
When theDE Fs upply sinks toamin imum
leve l,th e Rem
aining Starts:16 mes
sage
is sho wninthemult ifunction disp lay. 152
Ref
uelin gDriving and parking

When
the Remainin
gStarts: 16 message
is shown inthe multifunc tiondisplay, youcan
start theengine 16more times. IfDE Fis not
added, itwill notbepossible torestar tthe
engine. Fillthe DEF tank withapprox. 1gal
(3.8 l)DEF ,or have itfilled ataqual ified
specialist workshop. i
If
you drive thevehicle fasterthan10mph
(16 km/h), the Check
Additive See Operator's
Manual message
goesoff
after approximately oneminute.
Further information aboutBlueTEC exhaust
gas aftertr eatment andDEF isavaila bleatany
authorized Mercedes-Ben zCent er.
Adding DEF G
WARN
ING Make
sure
R DE Fdoes notcome intocontact with skin,
eyes, orcloth ing
R to keep DEFout ofthe reach ofchildren
If you and/or othershave come intocontact
with DEF:
R IfDE Fhas gotteninto contact with eyes,
flush withplenty ofwater immediately and
seek medical help.
R Clean affectedskin immediately withplenty
of water.
R IfDE Fw asswallowe d,rin se mout h
imm ediat elywith plentyof wate rand drink
pl enty ofwa ter. Consu ltaphy sicia n. G
WAR
NING If
yo uop en the DEF tank cap,sma llamo unts
of amm oniavap orma ybe released .This
depends inparticular upontheage ofthe DEF .
Ammon iavapors haveapungent odorandare
particularly irritatingto:
R skin
R mucous membranes
R eyes You
may experience aburning sensation in
your eyes, noseandthroat, aswell as
coughing andwatering ofthe eyes.
Do not inhale anyammonia vaporsthatmay
be released. Fillthe DEF tank onlyinwell-
ventilated areas.
! Only useDEF inaccordance with
ISO 22241 .Do not mix anyadditives with
DEF ,and donot dilute DEFwith water. This
may destroy theBlueTEC exhaustgas
aftertr eatment system.
! The vehicle mustbeparked onlevel
ground tofill the DEF tank.The DEF tank
can only befilled asinten dedwith the
vehicle parkedonalevel surface. This
avoids falselevelreadings. Fillingthetank
is not permitted ifthe vehicle isnot parked
on alevel surface. Thereisadanger of
overfilling, whichcouldresult indamage to
componen tsof the BlueTEC exhaustgas
aftertr eatment .
If the outside temperature islower than
Ò11 †,damage mayoccur whenadding DEF.
If DEF isfrozen andthere isan active warning
indicator, addingmaynotbepossible. Park
the vehicle inawarmer place,e.g.inagarage,
until DEFhasbecome fluidagain. Fillingis
then possible again.Alternatively, havethe
DEF tank refilled ataqual ified specialist
workshop.
! Rinse surfaces thathave come into
cont actwith DEFimmediately withwater or
remove DEFusing adamp clothandcold
water. Ifthe DEF hasalread ycrystallized,
use asponge andcold water toclean it.DEF
residues crystallize aftertimeand
cont aminate theaffected surfaces.
! DEF isnot afuel additive andmust notbe
added tothe fuel tank .If DEF isadded to
the fuel tank ,this canlead toengine
damage.
Further information onDEF (Ypage 387). Refueling
153Driving and parking Z

Opening
theDEF filler cap The
filler neckfor DE Fisbehind thefuel filler
flap.
The fuel filler flapisunlocked orlocked
automaticall ywhen youopen orclose the
vehicle withtheSmartKey orwith KEYLES S-
GO. X
Switch offthe ignition.
X Press thefuel filler flapinthe direction of
arrow :.
The fuel filler flapswings up.
X Turn blueDEFfiller cap;
counterc lockwise andremove it.
DEF filler cap;issecured withaplastic
strap.
DEF refill bottle DEF
refill bottles canbeobtained atmany gas
stations oratan authorized Mercedes-Benz
Center. Refillbottles without athreaded cap
do not provide overfillprotection.DEF may
leak ifoverfilled. Mercedes Benzprovides
special refillbottles withthreaded caps.
These areavail able atany authorized
Mercedes-Benz Center. X
Unscrew theprotect ivecap from DEFrefill
bottle :.
X Place DEFrefill bottle :onthe filler neck
as shown andscrew iton clockwise untilit
is hand-tight.
! Only screw onthe DEF refill bottle hand-
tight. Itcould otherwise bedamaged .
X Press DEFrefill bottle :inthe direction of
the filler neck.
The DEF tank isfilled. Thismay take upto
one minute. i
When
DEFrefill bottle :isno longer
pressed, fillingstops andthebottle maybe
taken offagai nafter being only partially
emptie d.
X Rel eas eDEF refillbottle :.
X Turn DEFrefillbottle :counterclo ckwise
and remove it.
X Screw onthe cover ofDEF refillbottle :
aga in. 154
Refuel
ingDriving and parking

Check
listbefor edr iving off-road X
Engine oillevel: check theen gin eoil and
add oilifne ces sary.
When drivingonsteep grad ients,th eoil
leve lmust besuff iciently high toensure a
co rrect oilsupply inthev ehicle.
X DEF tank (BlueTEC vehicles): checkthe
fluid level and,ifnec essary, refilltothe
maximum (13l)(Y page 152).
X Wheel-changing toolkit:chec kthat the
jack isworkin gand make sureyouhave the
lug wrenc h,arobust towcable andafolding
spade inthe vehicle.
X Wheels andtires: chec kthe tire tread
depth andtirepressure.
X Check fordamage andremove anyforeign
objec ts,e.g. small stones,from the
wheels/tir es.
X Replace anymissing valvecaps.
X Replace dentedordamaged wheels.
X Rims: dentedorbent rimscanresult ina
loss oftire pressure anddamage thetire
bead. Therefor e,chec kyour rims before
driving off-road andreplace themas
required.
! Ifthe engine oilwarning lamplights up
while thevehicle isin motion ,stop the
vehicle inasafe place assoon aspossible.
Check theengine oillevel. Theengine oil
warning lampwarning mustnotbeignored.
Continuing thejourney whilethesymbol is
display edcould leadtoengine damage.
Checklist afterdriving off-road G
WARNIN
G If
you notic esudden significant vibrationsor
unusual handling performanc eor ifyou
suspect thatdamage hasoccurred tothe
vehicle, youshould activate thehazard
warning lamps,gentlyreduce speedand
carefully headforanarea thatislocated ata
safe distance fromtheroad.
Check thetires andtheunderside ofthe
vehicle fordamage. Ifthe vehicle seems unsafe,
havethevehicle towedawaytothe
nearest Mercedes-B enzCenter ortire dealer
to be repaired.
! Ifyou detect damage tothe vehicle after
driving off-road, havethevehicle checked
immediately ataquali fiedspecialist
workshop.
Drivin gover rough terrain placesgreater
demands onyour vehicle thandriving on
normal roads.Afterdriving off-road, check
the vehicle. Thisallows youtodetect damage
promptly andreduce therisk ofan accident
to yourself andother roadusers.
X Deact ivateDSR(Ypage 208).
X Vehicles withtheAIRMATIC package:
lower thevehicle toaride height suitable
for the road condit ions,e.g.tothe
highway /high-speed level.
X Clean theheadlamps andrear lights and
check fordamage.
X Clean thefront andrear license plates.
X Clean thewheels/tires withawater jetand
remove anyforeign objects.
X Clean thewheels, wheelarches andthe
vehicle underside withawater jet;check
for any foreign objectsand damage.
X Check whether twigsorother partsof
plants havebecome trapped. These
increase therisk offire and candamage
fuel pipes, brakehoses orthe rubber
bellows ofthe axle jointsand propeller
shafts.
X Aft erthe trip, examine withoutfailthe
entire undercarriage, wheels,tires,brakes,
bodywork structure,steerin g,chassis and
exhaust systemfordamage.
X Aft erdriving forexten dedperiods across
sand, mud,gravel, waterorinsimilarly dirty
condit ions,havethebrake discs, wheels,
brake pads/linings andaxle jointscheck ed
and cleaned.
X Ifyou detect strongvibrations afteroff-road
travel, checkforforeign objectsin the
wheels anddrive trainandremove themif 164
Driving
tipsDriving and parking

X
Turn theSmart Keytoposition 2in the
ignition lock.
X To switch oncooli ngfunction: press
switch =repeatedly untiltheblue
indicator lampinthe switch lightsup.
X To switch onwarm ingfunction: press
switch =repeatedly untilthered indicator
lamp inthe switch lightsup.
X To switch offfunction: pressswitch =
repeatedly untiltheindicator lampinthe
switch goesout.
When usingthewarming functionabove a
cert aintemperat ure,residual heatindicator
lamp ;lights up.This means thatthemetal
insert ofthe cup holder ishot.
Cup holder inthe rear seat armrest !
Donot siton orsupport yourbody weight
on the rear seat armrest whenitis folded
down, asyou could otherwise damageit. X
Fold down therear seat armrest .
Cup holder :isin the rear seat armrest . Sun
visors
Overview ofsun visors G
WARNIN
G Do
not use thevanity mirror whiledriving.
Keep thevanity mirrors inthe sun visors
closed whilethevehicle isin motion .
Reflected glarecanendanger youand others. :
Mirror light
; Brack et
= Retaining clip,e.g.foracar park ticket
? Vanity mirror
A Mirror cover
Vanit ymirr orinthe sun visor Mirror
light:only funct ionsifthe sun visor
is clipped intoretainer ;and mirror cover
A has been folded up.
Glare fromtheside X
Fold down sunvisor :.
X Pull sunvisor :out ofretainer =.
X Swing sunvisor :tothe side.
X Slide sunvisor :forwards andback as
required.
X Fold down additional sunvisor ;. Featur
es
295Stowing and features Z

i Notes
onthe vehicle equipment –always
equip thevehic le:
R with tires ofthe same sizeonagiven axle
(left /right )
R with thesame typeoftires atagiven time
(summ ertires, wint ertires, MOE xtende d
tir es) i
On
the followin gpages, youcan find
inf orm ation onapprov edwheel rimsand
tir esize sfor equipping yourvehic lewith
wint ertires. Wint ertires are not available
ex fact oryasstandard equipmen tor
optional extras.
If you want toequip yourvehicle with
approved wintertires,itmay benecessary
to obtain wheelrimsinthe correspon ding
size, asthe size ofthe approved wintertires
may differ fromthestandard tires.Thisis
dependent onthe model andthe
equipment installedatthe factor y.
The tires andwheel rims,aswell asfurther
inform ation,canbeobtained ataquali fied
specialist workshop, e.g.atan authorized
Mercedes-B enzCenter. i Overview
ofabbreviations usedinthe
following tiretables:
R BA: both axles
R FA: front axle
R RA: rear axle
In the following table,thewheel/tire
combinat ionsareallocated tothe vehicle
models through variants, e.g.V1,V2etc. : V1
V2376
Wheel
andtirecombinationsWheels and tires


ML 350 BlueTEC 4MATIC ML3504MATIC

Cap
acities
Miss ingvalues werenota vail ablea ttime ofgoin gto prin t. Model Capa
city Fuel,
coolant ,
lubr icant s,etc. Engine
oiland
filt er 4MA
TIC 8.
5US qt(8.0l) Appr
oved engine
oils 7.
4US qt(7.0l) Cooling
system All
models MB
325 .0or
MB 326 .0
ant icor rosio n/
ant ifre eze Ta
nk capa city All
models Gasoline
engines :
prem ium-g rade
unleaded gasoline
(at least 91octane,
average value
betwe en96 RON/
86 MON)
Dies eleng ines :
ULTRA -LOW
SUL FUR HIGH WAY
DI ES EL FUE L(ULS D,
maxim umsulfur
con tent15 ppm) Reser
ve All
models DEF
tank 4MA
TIC 7.
3US gal (27.5l) DE
Fin acc ordan ce
with ISO22241 Wind
shield /
head lamp
cleaning
syst em All
models MB
winds hield
washer
con centrate 33
(Y page 390)
Mixin grat iofor
washer fluid
(Y page 390) 33
Mixe dwith water orprem ixedwasher fluidwithantifre eze prot ection. 384
Serv
iceprodu ctsand capacit iesTechnical data

ML 350 BlueTEC
ML 350 4MATIC
ML 350 BlueTEC