2012 MERCEDES-BENZ M-Class fuel

Inst
rumen tclust er Display
sand contr ols Function Page
:
Speedo
meterwith
segme nts 223
;
Multif
unction display 224
=
Tachom
eter 223
?
Coolant
temperat ure 222 Function Page
A
Fuel
gauge B
In
str ument clusterlight ing
bright nesscon trol: turn
cloc kwise orcoun ter-
cloc kwise Instr
ument clust er
29At a glance

Warning
andindic atorlamps Func
tion Page
:
Low-be
amheadlamps 109
;
ESP
® 273
=
High-be
amheadlamps 111
?
Electric
parkingbrake (red) 271
F
(USAonly) !
(Canada only) A
Electric
parkingbrake
(y ell ow) 271
B
Distance
warning signal 279
C
Turn
signa l 111
D
Tire
press uremonitor 280
E
SRS
275 Func
tion Page
F
Seat
belt 269
G
Diesel
engine: preglow 140
H
Coo
lant 277
I
Rea
rfog lamp 110
J
Check
engine 276
K
Reserve
fuel 276
L
ESP
®
OFF 273
M
ABS 272
N
Brakes 271
$
(USAonly) J
(Canada only) 30
Instrum
entclusterAt a glance

Any
unauthorized mod ificati ontothis
de vic ecou ldvoi dthe user’ sa uth orityto
oper atetheequipm ent.
The Product label withFCC IDand IC
ce rtific ation num bercan befoun din the
bat tery cas eof theS martKey . i
Ca
nada only:
This device complieswith RSS-210 of
Industry Canada .Operation issubjec tto
the followi ng two cond itions :
1. Thisde vice ma ynot causeinte rferenc e,
and
2. thi sde vice mu stacc eptany inte rference
rece ived,incl uding inte rference thatm ay
caus eunde sired oper ationofthe device.
Any unauthorized modificationtothis
device couldvoidtheuser’s authority to
operate theequipment.
The Product labelwithFCCIDand IC
certific ationnumber canbefound inthe
battery caseofthe SmartK ey.
Locki ngand unlocking centrally The
SmartK eycent rally locks/unloc ks:
R the doors
R the tailgate
R the fuel filler flap :
& Locks thevehicle
; F Opens/closes thetailgate
= % Unlock sthe vehicle
When unlocking, theturn signals flashonce.
When locking, theyflash three times. When
itis dark, thesurround lightingalso
comes onifit is activated inthe on-board
computer (Ypage 235).
You canalso setanaudi blesignal toconfirm
that thevehicle hasbeen locked. Theaudi ble
signal canbeactivated anddeactivated using
the on-board computer (Ypage 236).
X To unlock centrally: pressthe%
button.
If you donot open thevehicle within
approximately 40seconds ofunlocking:
R the vehicle islocked again.
R the theft deterrent lockingsystem isarmed
again.
X To lock centrally: pressthe& button. KEY
LESS-GO
General notes i
USA
only:
This device complies withPart15ofthe
FCC Rules. Operation issubject tothe
following twocondition s:
1. This device maynotcause harmful
interfer ence,and
2. this device mustaccept anyinterfer ence
received, includinginterferencethatmay
cause undesired operation.
Any unauthorized modificationtothis
device couldvoidtheuser’s authority to
operate theequipment.
The Product labelwithFCCIDand IC
certific ationnumber canbefound inthe
battery caseofthe SmartK ey. i
Canada
only:
This device complies withRSS-2 10of
Industry Canada.Operation issubjec tto
the followi ng two cond itions :
1. Thisde vice ma ynot causeharmfu l
inte rferenc e,and SmartK
ey
73Opening/closing Z

2.
this devicemust accep tany inte rference
rece ived,incl uding inte rference thatm ay
caus eunde sired oper ation.
An yunaut horizedmod ificatio ntothis
device couldvoidtheuser’s authority to
operate theequipment.
The Product labelwithFCCIDand IC
cert ification numbercanbefound inthe
battery caseofthe Smart Key.
Import antnotes onthe use ofKEY LESS-
GO R
The KEYLE SS-GO key can beused likea
conv ention alkey.
R You cancombine KEYLESS-GO funct ions
with those ofaconv ention alkey, e.g.
unlock withKEYLE SS-GO and lock with the
& button .
R Always carryyourKEYLE SS-GO key onyour
person.
R Do not keep theKEYLE SS-GO key toget her
with:
- electron icdevices, e.g.amobile phone
or another key
- metallic objects,e.g. coins ormetal foil.
This canaffect thefunct ionality of
KEYLE SS-GO.
R When lockingand unlockin gusing
KEYLE SS-GO, thedistance between the
Smart Keyand thecorrespon dingdoor
handle mustnotexceed 3ft (1 m).
R Ifthe KEYLE SS-GO key isremoved fromthe
vehicle, itis possible thatthesystem may
not recogn izethe Smart Key.Thevehicle
can then notbelocked orstart edusing
KEYLE SS-GO.
R Ifthe KEYLE SS-GO key has been removed
from thevehicle, e.g.ifapassenger leaves
the vehicle withaKEYL ESS-G Okey : X
To unl ockt he vehi cle:touch theinner
surfa ceofthe door handl e.
X To loc kthe vehi cle:touch sensor
surfa ce:.
X Co nven ienceclo singfeature: touch
recesse dsensor surface; for an
extended period(Ypag e87).
If you pullon the handl eofthe tailgate, only
the cargo compartmen tof the vehicle is
unlocked. Changing
thesettings ofthe lockin g
system
You canchange thesettin gofthe locking
system insuch away that only thedriver's
door andthefuel filler flapareunlocked. This
is useful ifyou frequently travelonyour own.
X To change thesetting: pressandhold
down the% and& buttons
simultaneously forapproximately six
seconds untilthebattery checklamp
(Y page 76)flashes twice. i
If
the settin gof the locking systemis
changed withinthesignal rangeofthe
vehicle, pressing the& or% button
locks orunlocks thevehicle.
The SmartK eynow funct ionsasfollows:
X To unlock thedriver's door:pressthe
% button once.
X To unlock centrally: pressthe%
button twice.
X To lock centrally: pressthe& button. 74
Smar
tKeyOpening/closing

Unlocking
andopening doorsfrom
the inside
You canopen adoor from inside thevehicle
even ifit has been locked.You canonly open
the rear doors frominside thevehicle ifthey
are not secured bythe child- proof locks
(Y page 59).
Only open thedoor when thetrafficsituation
permit s.
If the vehicle waspreviously lockedwith the
Smar tKeyorwith KEYL ESS-GO, openin gthe
vehicle fromtheinside willactiv atethe anti-
thef talarm system .Switc hoff the alarm
(Y page 68). X
Pull door handle ;.
If the door islock ed,lock ingknob : pops
up. The door isunlock edand canbe
opened. Centra
llylocking andunlocking the
vehicle fromtheinside
You cancentrally lockorunlock thevehicle
from theinside.
The central lock ing/ unlock ingbutt ondoes
not lock orunlock thefuel filler flap.
The buttons arelocate don both frontdoors. i
You
cann otunlock thevehicle centrally
from theinside ifthe vehicle hasbeen
locked withtheSmart KeyorKEYLE SS-GO. i
It
is only possible tolock thevehicle
cent rally ifthe front -passenger dooris
closed. X
To unlock: pressbutton :.
X To lock: press button ;.
If all the doors andthetailgate areclosed,
the vehicle locks.
You canopen afront doorfrom inside the
vehicle evenifit has been locked. Onlyopen
the door when thetraffic situation permits.
If the vehicle hasbeen locked withthecent ral
lockin gbutton :
R and theSmart Keyisset toits factor y
sett ing, theentire vehicle isunlocked ifa
front doorisopened fromtheinside
R and theSmart Keyisset toan individual
sett ing, only thefront doorthatisopened
from inside thevehicle isunlocked.
If the vehicle hasbeen locked centrally with
the Smart Keyorwith KEYLE SS-GO, itis not
unlocked whentherelease buttonforthe
cent rallockin gis used. Automa
ticlocking feature
The vehicle locksautomatically whenthe
ignition isswitched onand thewheels ofthe
vehicle areturnin gat as peed ofmore than
9 mph (15km/ h).
You could therefore belock edout when:
R the vehicle isbeing pushed.
R the vehicle isbeing towed.
R the vehicle isbeing testedon a
dynamomet er. Doors
79Opening/closing Z

i
If
you lock thevehicle asdescribe dabove ,
the fuel filler flap isnot locked. Theanti-
theft alarm system isnot armed. Cargo
compartment Important
safetynotes
Do not leavethe SmartKey inthe cargo
compartment. Youcould otherwis elock
you rself out. G
WARNING When
leaving thevehicle ,alw aysremove the
SmartKey fromtheignition lock.Alway stake
the SmartKey withyouand lock thevehicle .
Do not leavechildre nunsu pervised inthe
veh icle, eve nifthey aresecured inachild
restraint system,anddonot give them access
to an unlocked vehicle.Achild's unsupervised
access toavehicle couldresult inan accident
and/or serious personal injury.Theycould:
R injure themselves onvehicle parts
R be seriously orfatally injured byextrem e
heat orcold
R injure themselves orhave anaccident with
vehicle equipment thatmay stillbein
operation evenaftertheSmartKey has
been removed fromtheignition, suchasthe
seat adjustment ,steering wheel
adjustment ormemory function.
If children openadoor, theycould cause
severe oreven fatalinjury toother persons; if
they getout ofthe vehicle, theycould injure
themselves whendoing soorbe seriously or
even fatally injured byany passing traffic.
Do not expose thechild restraint systemto
direct sunlight. Thechild restraint system's
metal parts, forexample, couldbecome very
hot, andachild could beburned onthese
parts. G
WARNING Do
not carry heavy orhard object sin the
passenger compartmen tor cargo compartmen
tunle ssthey arefirmly secu red
in place .
Unse curedorimp roperlypo sitio ned cargo
incre ases achi ld's ris kof inju ryinthe event
of
R stro ngbra king maneu vers
R sudd en cha nges ofdirecti on
R an acci dent G
WAR
NING Ma
kesure the tailgate isclo sed when the
engi neisrunning andwhiled riving. Among
other dange rs,dea dlycarbon monoxide (CO)
gase smay enter vehicleinterior resultingin
unconsciou snessanddeath.
! The tailgate swings upwards andtothe
rear when opened .Therefore, makesure
that there issufficient clearance aboveand
behind thetailgate.
To open thetailgate completely, aminimum
clearance of7.20 ft(2.20 m)above the
gro und isneces sary.
Fo rv ehicles withoutEASY-PACK tailgat e
you can:
R open andcloseth etailg ateman ually from
outs ide
R unloc kthe tailgate frominside withthe
emergency release
For vehicle swith EASY -PACK tailgate you
can:
R close thetailgate manually fromoutside
R open andclose thetailgate automatically
from outside
R open andclose thetailgate automatically
from inside
R limit theopening angleofthe tailgate
R unlock thetailgate frominside withthe
emergency release Cargo
compar tment
81Opening/closing Z

Useful
information........ .......... .......... 138
Br eaking-in notes.............................. 138
Driving ............................................... 138
Autom atictransm ission ................... 144
Refueling .................. .......................... 149
Par king .................. ............................. 155
Driving tips........................................ 157
Driving systems................................ 167
Off-r oaddriving system s.................. 208
Tr ailer towing .................................... 210 137Driving and parking

Problems
withtheengine Problem Possible
causes/co nsequences andM Solutions
The
engine doesnot
start. Thestarter motor
can beheard. R
There isamalfunction inthe engine electron ics.
R There isamalfunction inthe fuel supply .
X Try tostart theengine again(Ypage 140). Avoid excessively
long andfrequent attemptsto start theengine asthese willdrain
the battery.
If the engine doesnotstart after several attempt s:
X Consult aqual ified specialist workshop, e.g.anauthorized
Mercedes-B enzCenter. The
engine doesnot
start. Youcannot hear
the starter motor. The
on-board voltageistoo low because thebattery istoo weak
or discharged.
X Jump-start thevehicle (Ypage 341).
If the engine doesnotstart despite attemptsto jump-st artit:
X Consult aqual ified specialist workshop, e.g.anauthorized
Mercedes-B enzCenter. The
starter motorwasexposed toathermal loadthatwastoohigh.
X Allow thestarter motortocool down forapproximately two
minutes.
X Try tostart theengine again.
If the engine stilldoes notstart:
X Consult aqual ified specialist workshop, e.g.anauthorized
Mercedes-B enzCenter. The
engine isnot
running smoothly and
is misfiring. There
isamalfunction inthe engine electron icsoramechanical
componen tof the engine management system.
X Only depress theaccelerator pedalslightly.
X Have thecause rectifiedimmediately ataqual ified specialist
workshop, e.g.anauthorized Mercedes-B enzCenter.
Otherwise, non-combusted fuelmay getinto thecatalytic
conv erter anddamage it. The
coolant
temperature gauge
shows avalue above
248 ‡(120 †). The
coolant levelistoo low. Thecoolant istoo hotand theengine
is no longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant
to cool down.
X Check thecoolant level(Ypage 315). Observe thewarning
notes asyou dosoand add coolant ifnecessary. Driving
143Driving and parking Z