ignition MERCEDES-BENZ M-Class 2012 W166 Manual PDF

G
WARNING In
the event amalfu nction ofthe SRS isindica tedasoutli nedabove,the SRS may notbe
opera tional.
For yoursafet y,we stron gly recomm endthat you contactana uth oriz edMer cedes-Ben zCent er
immediately tohave thesystem checked.Other wisetheSRS may notbeactivat edwhen needed
in an acciden t,which couldresult inserious orfatal injury, oritmight deploy unexpec tedlyand
unnec essarily whichcouldalsoresult ininjury. Engine
Problem Possible
causes/consequences andM Solutions
;
The
yellow Check
En gine warning lamp
lights upwhile the
engine isrunn ing. There
maybeamalfunct ion,forexample:
R in the engine managemen t
R in the fuel injec tionsystem
R in the exhaust system
R in the ignition system(forvehicles withagasoline engine)
R in the fuel system
The emission limitvalues maybeexceeded andtheengine may
be runn inginemergen cymode.
X Have thevehicle checkedassoon aspossible ataqualified
specialist workshop. i
In
some states,you arerequired bylaw toimmediately visita
qualified specialist workshop assoon asthe yellow Check
En gine warning lamplights up.Ifin doubt, checkwhether such
legal regulations applyinthe state/prov inceinwhich youare
current lydriving. Vehicles
withadiesel engine: thefuel tank hasbeen rundry
(Y page 152).
X Start theengine threetofour times afterrefueling.
If the yellow Check Enginewarning lampgoesout,emergency
running modeiscanceled. Thevehicle neednotbecheck ed. 8
The
yellow reserve fuel
warning lampflashes
while thevehicle isin
motion. Inaddition, the
yell ow Check Engine
warning lamp;
may light up. The
fuel system pressure istoo low. Thefuel filler capisnot closed
correct lyor the fuel system isleaking.
X Observe theadditional displaymessages inthe multifunction
displa y.
X Check thatthefuel filler capiscorrect lyclosed.
X Ifthe fuel filler capisnot correctly closed:close thefuel filler
cap.
X Ifthe fuel filler capisclose d:visit aqual ified specialist
workshop. 276
War
ning andindicator lampsin the instrum entclusterOn-board computer and displays

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

Asht
ray
Asht rayin thefront -com partmen t
cent erconsole !
The hold erund ertheasht rayisno th eat
resist ant.Befor eplacing litcigaret tesinthe
ashtray, makesurethattheashtray is
properly engaged. Otherwise, theholder
could bedamaged. X
To open: slidecover :fully forwards.
X Fold thelidofinsert =upwards.
X To rem ove theinsert: pressinsert =to
the left ?.
Asht rayinsert =slides outslightly tothe
right.
X Lift insert =up; and out.
X To install theinsert: installinsert =into
the holder andpress downonthe right-
hand sideuntil itengages.
Ashtr ayinthe rear -comp artment center
console !
Close theashtray whenitis not inuse and
before youfold therear seats forward. You
can other wisedamage theashtray.
Vehicles withoutaRear SeatEntert ainmen t
System haveanashtray inthe centercon sole
in the rear compart ment. X
To open: briefly presscover ;atthe top.
The ashtray opens.
X To rem ove theinsert:p ressintorecess
= from theright.
Ashtray insert:slid esout slightly tothe
right.
X Lift insert :upand out.
X To install theinse rt:install insert:into
the hold erand press downonthe right-
hand sideuntil itengages. Cigarette
lighter G
WARNING When
leaving thevehicle, alwaysremove the
SmartK eyfrom theignition lock.Always take
the SmartK eywith youand lock thevehicle.
Do not leave children unattendedinthe
vehicle, evenifthey aresecured inachild
restraint system,orwith access toan
unlocked vehicle.Achild's unsupervised
access toavehicle couldresult inan accident
and/or serious personal injury.Thechildren
could:
R injure themselves onparts ofthe vehicle
R be seriously orfatally injured through
excessive exposuretoextrem eheat orcold
R injure themselves orcause anaccident with
vehicle equipment thatcanbeoperated
even ifthe SmartKey isremoved fromthe
ignition lockorremoved fromthevehicle,
such asseat adjustment ,steering wheel
adjustment ,or the memory function 296
FeaturesStowing and features

If
childre nopen adoor, theycould injure other
person sor get out ofthe vehicle andinjure
them selves orbe injured byfollowing traffic.
Do not expose thechild restraint system to
direct sunlight .The child restraint system's
metal parts, forexample, couldbecome very
hot, andthechild could beburned onthese
parts. G
WARNING Never
touchtheheating element orsides of
the lighter; theyareextrem elyhot. Hold the
knob only.
Make sureanychildren traveling withyoudo
not injure themselves orstart afire with the
hot cigarette lighter.
! The cigarette lighterinthe cent erconsole
in the front compartmen tis not inten ded
for operating thetire inflation compressor. X
Turn theSmartK eytoposition 2in the
ignition lock.
X To open: slidecover :fully forwards.
X Press incigarette lighter;.
Ciga rettelighter ;will pop out
automatically whentheheating element is
red-hot.
X To close :pull cover :fully back. 12
Vsocket s
Point sto obser vebefor euse Wit
hth eexc eption ofthesoc ket inthefron t
cen terc onsole, allsocket scan be used for
acc essorie swit hamax imum curren tdraw of
240 W(20 A),e.g. lamp sor charge rsfor
mobil ephones.
The socket inthe center console inthe front
compartment canbeuse dfor accesso ries,
e.g lamp sor mobil ephone chargerswith a
maximu mcurrent drawof180 W(15 A).
If you usethesockets forlong periods when
the engine isswi tched off,thebattery may
discha rge.
X Turn theSmartKey toposi tion 1in the
ignitio nlock. i
An
emergenc ycut- out ensures thatthe
on-board voltagedoesnotdrop toolow. If
the on-board voltageistoo low, thepower
to the socket sis automatically cut.This
ensures thatthere issufficient powerto
start theengine.
Socket inthe rear -compa rtment center
consol e X
Lift upthe cover ofsocket :.
Vehicles withtheRear SeatEntert ainment
System havetwosocket sin the cent er
console inthe rear compartm ent. Featur
es
297Stowing and features Z

Possible
causesofmalfunct ion:
R the on-board power supply isnot within a
permissible voltrange.
R the temperat ureofthe DC/A Cconv erter is
temporarily toohigh.
R some smallelectronicdevices havea
cons tantnomin alpower ofless than
150 W,but avery high inrush current.
These devices willnotwork. Ifyou conn ect
such adevice, 115Vpower socket :will
not supply itwith power.
If indicator lamp;still does notlight up,
cont actaspecialist workshop, e.g.an
authorized Mercedes-B enzCenter. mbr
ace
Import antsafety notes !
Alicen seagreem entmust existino rder
to activa tethe mbrace service. Ensurethat
you rsyst em isact ivat edand readyforu se,
and press theï MBInfo callbutton to
register. Ifany ofthe steps mentioned is
not carried out,thesystem maynotbe
activated.
If you have questions aboutthe activation,
cont actone ofthe following telephone
assistance services:
R USA: Mercedes-Ben zCustome r
As sist anc eCen teru nde r
1-800-FO R-MERC edes
(1-8 00-367 -6372) or1-888-9 90-9007
R Can ada: Custom erServ iceat
1-888-9 23-8367
Shor tlyafter succes sfullyr egisterin gwith the
mbrace service,auser IDand password will
be sent toyou bypost. Youcanusethis
password tolog into the mbrace section
under "Owners Online"athtt p://
www.mbusa. com20
. The
mbrace systemisavailable if:
R ithas been activat edand isoperation al.
R the corr espondin gmobile phonenetwork
is available fortran smitt ingdata tothe
Customer Center.
R aservic esubscript ionisavailable.
R the start erbatter yis sufficien tlycharged. i
Det
erminin gthe location ofthe vehicle on
a map isonly possible ifther eis sufficien t
GPS recept ionand thevehicle position can
be forwarded tothe Customer Center.
The mbrace system The
mbrace systemprovides different
servic es,e.g. :
R automatic andmanual emergen cycall
R Roadside Assistancecall
R MB Infocall
To adjust thevolume duringanmbrace call,
proceed asfollows:
X Press theW orX button onthe
multifunc tionsteer ingwheel.
or
X Use thevolume controller ofthe audio
system/ COMAND .
You canfind furth erinfor mation anda
descript ionofall available featuresunder
"Owners Online"athtt p://
www.mbusa.com 21
.
System self-test Aft
eryou have switch edon the ignition ,the
system carriesoutaself-diagn osis.
20 USA only.
21 USA only. Featur
es
299Stowing and features Z

Vehi
cle remo teope ning If
yo uha ve uni ntentio nallylocked your
veh icle(e .g. the Sma rtKey isstil lin the
veh icle) and arep laceme ntSma rtKey isnot
ava ilab le,the vehiclecan beopene dby a
Mer cedes-Be nzCu stom erAssi stance Center.
The vehiclecan beopene drem otelyup tofou r
da ys afte rthe ignition waslastswitched off.
X Contact thefollowing servicehotlines:
R USA: Mercedes-Ben zCustome r
As sist anc eCen terund er1-80 0-FO R-
ME RCedes (1-800-36 7-63 72)or
1-8 88- 990- 9007
R Canada: Customer Serviceat
1-8 88- 923- 8367
You willbeasked foryour password.
X Return toyour vehicle atthe time agreed
upon withtheMercedes-B enzCustomer
Assist anceCenter.
X Pull thetailgate handleforatleast 20
seconds untiltheindicator lampinthe SOS
button (Ypage 300)flashes.
The Connecting
Call message
appears
on the multifunct iondisplay .
Alter natively, thevehicle canalso beopened
via the Internet oran iPhone inthe "Owners
Online" sectionusingyourIDnumber and
password 23
. i
Vehicle
remoteunlockin gis only possible
if the correspon dingmobile phonenetwork
is accessible.
The SOS button flashes andthe Call
Connected message
appearsinthe
multifunct iondisplay toconf irmthat the
comman dfor vehicle remote unlockin ghas
been received.
If you pull thetailgate handleformore than
20 seconds beforereceiving authorization
for remote unlockin gfrom theMercedes-
Benz Customer AssistanceCenter, you
must wait15minutes beforeyoucan pull
the tailgate handleagain. Vehicle
remoteclosin g If
you forget tolock your vehicle butareno
longer inthe vicinit yof the vehicle, itcan be
locked foryou bythe Mercedes-B enz
Customer AssistanceCenter.
The vehicle canbelocked remotely uptofour
days after theignition waslastswitched off.
X Contact thefollowing servicehotlines:
R USA: Mercedes-B enzCustomer
Assist anceCenter under1-800-FOR-
MERCedes(1- 800-367-6372 )or
1-8 88-990- 9007
R Canada: Customer Serviceat
1-8 88-923- 8367
You willbeasked foryour PIN.
The next time youareinyour vehicle and
switch onthe ignition, the Tele Aid: Doors
Locked
byRemote message
appearsinthe
multifunct iondisplay .
Alter natively, thevehicle canalso belocked
via the Internet oran iPhone inthe "Owners
Online" sectionusingyourIDnumber and
password. i
The
vehicle valetlockin gfeature is
availa blewhen therelevant mobilephone
network isavaila bleand data conn ection is
possible.
Service forrecovering astolen vehic le If
yo ur veh icleha sbe en stol en:
X Noti fythe police.
The police willissu eanum bered incident
rep ort.
X Thi snum berw illbe forwarded tothe
Merc edes- BenzCustome rAssistance
Center together withyour PIN.
The Mercedes-Benz CustomerAssistance
Center thenattempts tolocate thembrace
system. TheMercedes-Benz Customer
Assistance Centercontacts youand the
local lawenforcemen tagency ifthe vehicle
is located. However, onlythelaw
23 USA only. 304
Featur
esStowing and features

Program
mingtheintegrat edgarage
door opener onthe rear -view mirror Program
ming G
WARNING Only
press thetransm itterbutton onthe
integrated garagedooropener ifthere areno
persons orobject spresent withinthesweep
of the garage door.People couldotherwise be
injured bythe movement ofthe door. Int
egrated garagedooropener onthe rear-view
mirror
Garage doorremote controlA isnot part of
this integrat edgarage dooropener. i
To
achieve thebest result, insertnew
batteries ingarage doorremote control
A before programming.
X Before programming forthe first time, clear
the memory ofthe integrat edgarage door
opener (Ypage 308).
X Turn theSmartK eytoposition 2in the
ignition lock.
X Press andhold oneoftransm itter
buttons ;to? onthe integrat edgarage
door opener.
Indicator lamp:starts toflash yellow
after ashort period. i
Indicator
lamp:flashes yellow
immediately afterthetransm itterbutton
has been stored forthe first time. Ifthe
transm itterbutton hasalready been
programmed, indicatorlamp:does not
flash yellow until10seconds haveelapsed. X
Relea sethe transm itterbutton.
X Point transm itterbutton Bofgarage door
remote controlA towards thetransm itter
buttons onthe rear-view mirrorata
distance of2to 8inches (5to 20 cm). i
The
distance requiredbetween garage
door remote controlA and theintegrated
garage dooropener depends onthe system
of the garage doordrive. Youmight require
several attempt s.You should testevery
position foratleast 25seconds before
trying another position.
X Press andhold transm itterbutton Bon
garage doorremote controlA until
indicator lamp:lights upgreen.
Programming iscomplete ifindicator
lamp :lights uporflashes green.
X Relea setransm itterbutton ;,=or? on
the integrat edgarage dooropener andthe
transm itterbutton ongarage doorremote
cont rolB.
If indicator lamp:lights upred:
X Repea tthe programming procedureforthe
transmit terbutton. Whendoingso,vary the
distance between thegarage doorremote
cont roland therear-view mirror. i
If
the indicator lampflashes greenafter
successful programming, thegarage door
system isoperating onarolling code. After
programming, youmust synchron izethe
garage dooropener integratedinthe rear-
view mirror withthereceiver ofthe garage
door system.
Synchronizing therolling code
Your vehicle mustbewithin rangeofthe
garage orgate opener drive.Makesurethat
neither yourvehicle norany persons/ objects
are present withinthesweep ofthe door or
gate.
Observe thesafety noteswhen performin g
the rolling codesynchron ization. 306
Featur
esStowing and features

X
Turn theSmart Keytoposition 2in the
ignition lock.
X Press theprogramming buttonofthe door
or gate drive (seethedoor orgate drive
operating instructions ,e.g. under
"Programming ofadditional remote
cont rols"). i
You
now normally have30seconds to
initiate thenext step.
X Press thepreviously programmed
tran smitt erbutton ofthe HomeLin k®
integr atedgarage dooropener repeatedly
in succession untilthedoor opens.
The rolling codesynchron izationisthen
complete.
Notes onprogr ammingthe remot e
control
Canadian radiofrequency lawsrequire a
"break" (orinter ruption) ofthe tran smission
signals afterbroadcasting forafew seconds .
These signals maynottheref orelast long
enough forthe integr atedgarage dooropener
to recogn izethe signal during programming.
Comparable withCanadian law,some U.S.
garage dooropeners alsohave abuilt-in
"interr uption".
If you liveinCanada orhave difficulties
programming thegarage dooropener
(regardless ofwhere youlive) when usingthe
programming steps(seeabove), proceed as
follows:
X Press andhold oneoftran smitt er
button s; to? ofthe integr atedgarage
door opener.
Indicat orlamp :start sto flash yellow
after ashort period.
X Release thetran smitt erbutton .
X Press transmitt erbutton Bofthe garage
door remote controland hold fortwo
seconds, thenrelease fortwo seconds,
then press againandhold fortwo seconds. X
Repeat thissequence ontran smitt er
button Bofthe garage doorremot e
cont roluntil indicator lamp:isgreen.
Repeat theprocess ifindicator lamp:
turns red.
X Contin uewith theother programming
steps (seeabove).
Problems whenprogramming
If you areexperienc ingproblems
programming theintegr atedgarage door
opener onthe rear-view mirror,takenoteof
the following instructions :
R check thetran smission frequency of
garage doorremot econt rolA (usual ly
found onthe reverse sideofthe remot e
cont rol).
The integr atedgarage dooropener is
compatible withdevices thatcanbe
operated withunits inafrequency rangeof
280 to390 MHz.
R change thebatteries ingarage doorremot e
cont rolA.T hisincreases theprobabil ity
that garage doorremote controlA will
send astron gand precise signaltothe
integrated garagedooropener onthe rear-
view mirror.
R when programming, holdgarage door
remote controlA atdifferent distances
and angles fromthetransmit terbutton that
you areprogramming. Trydifferent angles
at adistance between 2and 12inches (5
to 30 cm) orthe same angle atvarying
distances.
R ifanother remotecontrolfor the same
garage doordrive isavaila ble,repeat the
same programming stepswiththisremote
cont rol.Before youperform thesteps ofthe
operation, makesurethatthere arenew
batteries inthe garage doorremote
cont rol.
R note thatsome remote controlsonly
transmit foralimited amount oftime (the
indicator lamponthe remote controlgoes Features
307Stowing and features Z

out).
Press theremote controlbutton again
before itstops transmitting.
R align theanten nacable ofthe garage door
opener unit.Thiscanimprove signal
reception /transmission.
Opening/cl osingthegara gedoor Once
programmed, theintegr atedgarage
door opener willassume thefunct ionofthe
garage doorsystem's remotecontrol.Please
also read theoperating instructions forthe
garage doorsystem.
X Turn theSmart Keytoposition 2in the
ignition lock.
X Press transmitterbutton ;,=or? inthe
overhead controlpanel thatyouhave
programmed tooperate thegarage door.
Garage doorsystem withafixed code:
indicator lamp:lights upgreen.
Garage doorsystem witharolling code:
indicator lamp:flashes green. i
The
trans mitterwill trans mitasignal for
as long asthe trans mitterbutton isbeing
pressed. Afteramaximum often seconds,
trans mission istermin atedandindicator
lamp :flashes yellow.Press the
transmitter buttonagain,ifnecessary .
Cle aring thememory ofthe integ rated
garage dooropeneron the rear-view
mirror X
Turn theSmartKey toposi tion 2in the
ignitio nlock.
X Press transmitterbutton s; and ?.
The indicator lamplights upyellow .
X Press andhold trans mitterbutton s;
and ?until theindicator lampturns green. i
Make
surethatyouclear thememory of
the integr atedgarage dooropener before
selling thevehicle. Compass
Calling upthe compass Infor
mation onoperating thecompass canbe
found inthe separate COMAND operating
instr uctions. Floo
rmats G
WARNIN
G Whenever
youareusing afloormat, makesure
there isenough clearance andthat the
floormat issecurely fastened.
The floormat shouldalwaysbe securely
fastened usingthefastenin gequipment .
Befor edriving off,chec kthat thefloormat is
securely inplace andadjust itifnec essary. A
loose floormat couldslipand hinder proper
func tioningofthe pedals.
Do not place several floormat son top ofeach
other asthis may impair pedalmoveme nt. Floorm
aton the driver' sside (example)
X Driver's seat/front-passenger seat:
slide therespect iveseat back.
X Rear seats: slidetherespect iveseat
forwards.
X To install: placethefloormat inthe
foot well.
X Press studs:ontoretain ers;.
X To rem ove: pullthefloormat off
retain ers;.
X Remove thefloormat . 308
Featur
esStowing and features

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). Engine
compartment Hood
Opening thehood G
WARN
ING Do
not pull therelease leverwhile thevehicle
is in mot ion. Othe rwise, thehood could be
forc edopen bypassing airflow.
This could cause thehood tocome looseand
inj ure you and/o rothe rs. G
WA
RNING Do
not open the hoodwh en the engineis
ove rheated.Yo ucou ldbe serio uslyinju red.
Ob serve the coolant temp eraturedisp layto
de term inewheth erthe enginemaybe
ove rheated.Ifyo use efla mes orsmo ke
comi ngfromthe enginecomp artment, move
aw ay fromt hevehicle. Waituntiltheengine
has cooled. Ifnecessary, callthefire
department. G
WARNING There
isarisk ofinjury ifthe hood isopen,
even ifthe engine isnot running.
Some engine componen tscan become very
hot.
To avoid therisk ofburns, onlytouch those
componen tsdescribed inthe Operator's
Manual andobserve therelevant safetynotes. G
WARNING To
help prevent personal injury,stayclear of
moving partswhen thehood isopen andthe
engine isrunning.
The radiator fanmay continue torun for
approximately 30seconds ormay even
restart aftertheengine hasbeen turned off.
Stay clear offan blades. G
WARNING Vehicles
withgasoline engine:
The engine isequipp edwith atransist orized
ignition system. Because ofthe high voltage
it is dangerous totouch anycomponen ts
(ignition coils,spark plugsocket s,diagnostic
socket )of the ignition system
R with theengine running
R while startin gthe engine
R when theignition isswitched onand the
engine isturned manually G
WARNING Vehicles
withdiesel engine:
The engine isequipp edwith ahigh-voltage
electronic controlunit forthe inject ion
system. Because ofthe high voltage itis
dangerous totouch anycomponen tsof the
inject ionsystem (injectors,electrical wires)
R with theengine running
R while startin gthe engine
R when theignition isswitched on
X Make surethatthewindshield wipersare
switched off. G
WARNING The
windshield wipersandwiper linkage
could beset inmotion.
When thehood isopen, youorothers could
be injured bythe wiper linkage.
Make surethatthewindshield wipersare
switched off.Remove theSmartKey ormake
sure thatnoignition position hasbeen
selected withKEYLES S-GO.Allindicator
lamps mustbeoff inthe instrumen tcluster. 312
Engi
necompar tmentMaintenance and care