2012 MERCEDES-BENZ M-Class lock

!
Never polish thevehicle orthe light alloy
wheels. Polishingcauses thefinish to
shine.
! The followi ngmay cause thepaint to
become shinyandthus reduce thematte
effect:
R Vigorous rubbingwithunsuitabl e
materials.
R Frequent useofcar washes.
R Washing thevehicle indirect sunlight.
! Never usepaint cleaner, buffingor
polishi ngproducts, orgloss preserver, e.g.
wax. These products areonly suitabl efor
high-gloss surfaces.Theiruseonvehicles
with matte finishleadsto considerable
surface damage (shiny,spotted areas).
Alway shave paintwork repairsperformed
at aqual ified speciali stworkshop, e.g.an
authorized Mercedes-Benz Center.
! Donot use wash programs withahot wax
treatment underanycircumstances. i
The
vehicle shouldpreferably bewashed
by hand using asoft sponge, carshampoo
and plenty ofwater. i
Use
only insect remover andcarshampoo
from therange ofrecommended and
approved Mercedes-Benz careproducts.
Cle aning thewindow s G
WARNING Before
cleaning thewindshiel dorwiper
blades, switchoff the windsh ieldwipers and
remo vethe Smar tKey fromthe ignit ionlock .
On vehic leswith KEYLE SS-GO, press the
St art/ Stop butt onrepeat edlyuntilall
indic atorlamps inthe inst rumen tcluster have
gon eout. Thewindsh ieldwipers could
oth erwise moveandinjure you.
X Clean theinside andouts ideofthe
windows withadamp clothand aclean ing
agent thatisrec omme ndedandapprov ed
by Merc edes- Benz. !
Donot use drycloths,abrasive products,
solven tsor clean ingagent scont aining
solvent sto clean theinside ofthe windows.
Do not touch theinsides ofthe windows
with hard object s,e.g. anice scraper or
ring. There isotherwise arisk ofdamaging
the windows.
! Clean thewater drainage channelsofthe
windshield andtherear window atregular
interv als.Deposits suchasleaves, petals
and pollen mayunder certain
circumst ancesprevent waterfromdraining
away .This can lead tocorrosion damage
and damage toelectron iccomponen ts.
Cleanin gthe wiper blades G
WARNING Before
cleaning thewindshield orwiper
blades, switchoffthe windshield wipersand
remove theSmartK eyfrom theignition lock.
On vehicles withKEYLES S-GO,pressthe
Start /Stopbutton repeatedly untilall
indicator lampsinthe instrumen tcluster have
gon eout. Thewindsh ieldwipers could
oth erwise moveandinjure you.
! Donot pull thewiper blade. Otherwise,
the wiper bladecouldbedamaged.
! Donot clean wiper blades toooften and
do not rub themt oohard. Otherwise, the
graphite coatingcouldbedamaged. This
could cause wipernoise.
X Fold thewiper armsaway fromthe
windshield.
X Carefully cleanthewiper blades witha
damp cloth.
X Fold thewindshield wipersbackagain
before switching onthe ignition.
! Hold thewiper armsecurely whenfolding
back. Thewindshield couldbedamaged if
the wiper armsmacks againstitsuddenly. Care
321Maintenance and care Z

Exam
ple: veh icles with AIR MATI Cand trailer tow
hi tch
: Folding wheelcho ck
; Lugwre nch
= Alignme ntbolt
? Ballcou pling ofthe trailert ow hitch
A Towing eye
B Jack
C Ratchet wrench "Minispar
e"emergency sparewheel
The "Minispare" emergencyspare wheel can
be found inthe stowage wellunder thetrunk
floor.
X Lift the trunk floorup(Ypage 292). Example:
vehicleswithoutlockable trunkfloor X
Vehicles withtrailer towhitch: remove
the ball coupling stowagetray.
X Turn emergenc yspare wheel retainer ;
count erclock wiseandremove it.
X Remove "Minispare" emergencyspare
wheel :. Vehicles
withlockable trunkfloor
X Remove thecontentsof sto wage tray ;.
X Turn thecentral ret ainin gscr ew insto wage
tr ay ; and "Minispar e"emerg encyspare
wheel :count ercloc kwise andremov eit.
X Remove stowage well;.
X Vehicles withtrailer towhitch: remove
the ball coupling stowagetray.
X Remove "Minispare" emergencyspare
wheel :.
For further infor mation onchang ingawheel
and mount ingthe spare wheel, see
(Y page 329). Flat
tire Prep
aring the vehicle
Your vehicle maybeequipped with:
R TIREF ITkit 24
R a"Minispare" emergencyspare wheel
R MOEx tended tires (tires withrun-flat
propert ies)(Ypage 338) i
Vehicle
preparation isnot necessary on
vehicles withMOEx tended tires .
24 Canada only. Flat
tire
329Breakdown assistance

i
Vehicles
equipped withMOExt endedtires
are not equi pped withaTIREFIT kitatthe
factory. Itis therefore recommended that
you addi tionally equipyou rvehicle witha
TIREF ITkit ifyou mount tiresthatdonot
feature run-flatpropert ies,e.g. winter tires.
A TIREF ITkit can beobtained froman
authoriz edMercedes- BenzCenter .
X Make surethathighway levelis
select ed25
(Y page 180).
X Stop the vehicle onsolid, non-slippery and
level ground, asfar away aspossible from
traff ic.
X Switc hon the hazard warning lamps.
X En gage theelectr icparkin gbrake manually
(Y page 156).
X Brin gthe fron twheels intothestraight-
ahead position.
X Move theDIRECT SELECT lever toP.
X Switch offthe engine.
X Vehicles withoutKEYLESS-GO: remove
the SmartK eyfrom theignition lock.
X Vehicles withKEYLESS-GO: openthe
driver's door.
The on-board electronic shave status 0,
which isthe same asthe SmartK eyhaving
been removed.
X Vehicles withKEYLESS-GO: removethe
Start /Stopbutton fromtheignition lock
(Y page 139).
X All occupants mustgetout ofthe vehicle.
Make surethatthey arenot endangered as
they doso.
X Make surethatnoone isnear thedanger
area while awheel isbeing changed.
Anyone whoisnot directly assisting inthe
wheel change should,forexample, stand
behind thebarrier.
X Get outofthe vehicle. Payattent ionto
traffic condition swhen doing so.
X Close thedriver's door.
X Unload heavyluggage. i
Only
operate thetire inflation compressor
using a12 Vsocket (Ypage 297), evenif
the ignition isturned off.
An emergency cut-offensures thattheon-
board electrical systemvoltage doesnot
drop toolow. Ifthe on-board electrical
system voltage istoo low, power tothe
socket sis automatically cutoff. This
ensures thatthere issufficient powerto
start theengine. TIREFIT
kit
Using theTIREFIT kit You
canusetheTIREFIT kittoseal small
punctures, particularly thoseinthe tire tread.
You canuseTIREFIT atoutside temperatures
down toÒ4 ‡(Ò20 †). G
WARNING TIREFIT
isalimited repairdevice. TIREFIT
cannot beused forcuts orpunctures larger
than approximately 0.16in(4 mm) andtire
damage causedbydriving withextrem elylow
tire inflation pressure, oron aflat tire, ora
damaged wheel.
Do not drive thevehicle undersuch
circumstan ces.
Contact thenearest authorized Mercedes-
Benz Center forassistance orcall Roadsi de
Assistanc e.
X Do not remove anyforeign objectswhich
have penetrated thetire, e.g.screws or
nails.
X Remove thetire seala ntbottle, the
accompanying "max.80km/h" stickerand
the tire inflation compressor fromthe
stowage wellunderneath thecargo
compartmen tfloor (Ypage 328).
25 Vehicles withtheAIRMATIC package. 330
Flat
tireBreakdown assistance

X
Affi xpa rt: ofthe sticker withi nthe
dri ver 'sfie ldof vis ion.
X Affi xpa rt; ofthe sticker nearthe valve
on the wheelwi th the defecti vetire . G
WA
RNING Ta
ke car enot toallo w the conte ntsofTIR EFIT
to come inconta ctwith hair, eyes orclo thing.
TIR EFIT isha rmfu lif inh aled ,sw allo we dor
ab sor bedthro ughthe skin-c auses skin, eye
and respirat oryirritat ion.
An ycon tactwith eyes orskin should be
flushed immediatelywithplent yof water .
If clot hing comesincon tactwith TIREFIT,
chan geclot hing assoon aspossible .
In case ofallergic reactionorrash, consult a
physician immediately. G
WARN
ING Keep
TIREFITaway fromchildr en.If
swallowed, rinse mout himmed iatelywith
plent yof water anddrinkplent yof water .
Do not induc evomit ing.
Consult adoct orimmed iately.
Keep away fromo pen flame orheat source. i
If
TIREF ITleaks out,allow itto dry. Itcan
then beremov edlike alayer offilm.
If you getTIREF ITon your clothing, haveit
cleaned assoon aspossible with
perchlor oethylene . X
Pull connector?with thecable andhose
A out ofthe housing.
X Scr ew hose Aontoflange Boftire
sealant bottle:.
X Inser ttire sealant bottle: upside down
int oopen ing;onthe tireinf lation
com press or. X
Remove thecap fromvalve Conthe
defec tivetir e.
X Sc rew filler hose Dontovalve C.
X Insert plug ?intothe 12Vsoc ket
(Y page 297).
X Turn theSmartKey toposit ion
1 (Y page 139)in the ignit ionlock .
X Press on/offswitc h= onthe tireinf lation
com press ortoI.
The tireinf lation compress orisswitc hed
on. The tireis inf lated. i
Firs
t,TIRE FITispumped intothe tire. The
press urecan brief lyrise toapprox imately
500 kPa(5bar/7 3psi). Flat
tire
331Breakdown assistance Z

sides
ofthe vehicle. Thejack saddle mustbe
placed centrally under thejacking point.The
jack must alwaysbe vertical wheninuse,
especiall yon inclines ordeclines.
The jack isintended onlyforlifting thevehicle
briefly forwheel changes. Itis not suited for
performing maintenance workunder the
vehicle. Tohelp avoid personal injury,usethe
jack onlytolift the vehicle duringawheel
change.
Never getbeneath thevehicle whileitis
supported bythe jack. Keep hands andfeet
awa yfrom thearea under thelifted vehicle.
Always lowerthevehicle ontosufficient
capacity jackstandsbefore working underthe
vehicle.
Always firmlyengage theparking brakeand
block thewheels withwheel chocks orother
sizable objects beforeraising thevehicle with
the jack. Donot disengage theparking brake
while thevehicle israised.
Make surethattheground onwhich the
vehicle isstanding andwhere youplace the
jack issolid, levelandnotslippery .If
nece ssary,us ealarge underlay.O ns lippery
surfac es,such astiled floors,you should use
a non -slip under lay,forexam plearubber mat.
Do not use wooden blocksor similar objects
as ajac ku nde rlay.Othe rwise, the jack may
not beableto ach ieve its load -be aring
cap acityifit is not atits fullhei ght.
Nev ersta rtthe engi newhen the vehicleis
rai sed .
Als oob ser vethe notes onthe jack. X
Usi nglug wre nch :,loose nthe bolts on
the wheel youwish tochange byabout one
full turn. Donot unscrew thebolts
completely.
The jackin gpoints arelocated justbehind the
wheel housings ofthe front wheels andjust
in front ofthe wheel housings ofthe rear
wheels (arrows). G
WARNING The
jack isdesigned exclusively forjackin gup
the vehicle atthe jackin gpoints. Thejack
saddle mustbeplaced centrally under the
jackin gpoint.
If you donot position thejack correct lyin the
jackin gpoint, thevehicle canfalloffthe jack
and seriously orfatally injureyouorothers.
! The jack isdesigned exclusively for
jackin gup the vehicle atthe jackin gpoints.
Otherwise, yourvehicle couldbedamaged.
X Take theratchet wrench outofthe vehicle
tool kitand place iton the hexagon nutof
the jack sothat theletters AUFarevisible. X
Position jack=atjackin gpoint ;. Flat
tire
335Breakdown assistance Z

X
Turn theSmart Keytoposition 0(Y page 139)inthe ignition lockandremove it.On vehicles
with KEYLE SS-GO, make suretheignition isswitched off(Ypage 139). Allindicator lamps
in the instr ument cluster mustbeoff.
X Switc hoff allelectric alcons umers (e.g.radio, blower, etc.).
X Open thehood (Ypage 312). Position
numberBidentifies thecharged batteryofthe other vehicle oran equivalent jump-
start ingdevice.
X Slide cover :ofpositive terminal; inthe direction ofthe arrow.
X Connec tpositive terminal; onyour vehicle topositive terminal= ofdonor battery B
using thejumper cable,beginning withyour ownbattery.
X Start theengine ofthe donor vehicle andrunitat idling speed.
X Connect negative terminal? ofdonor battery Btoearth pointAofyour vehicle using
the jumper cable,connectin gthe jumper cabletodonor battery Bfirst.
X Start theengine.
X Allow theengine torun forafew minutes beforedisconn ectingthe jumper cable.
X First ,remove thejumper cablefromearth pointAand negative terminal?, then from
positive terminal; and positive terminal=, each timedisconn ectingfrom thecont acts
on your ownvehicle first.
X Aft erremoving thejumper cable,closecover :onpositive terminal;.
X Have thebattery checkedataquali fiedspecialist workshop, e.g.anauthorized Mercedes-
Benz Center. Thejump-st artingprocedure isnot astandard operating state;therefor e,have
the battery checked. 342
Jum
p-startingBreakdown assistance

Tow
ingand tow-starti ng Impo
rtant safety notes G
WA
RNING If
yo utow thevehicle, youmu stusearig id
tow ingbarif:
R the engine isnot running.
R there isabrake system malfunction.
R there isamal function inthe pow ersup ply
or the vehicl e'selectrical system .
The pow erassi stance forthe steering andthe
brake forcebooste rdo not work when the
engine isnot running. Youwillneed more
force tosteer andbrake, youmay have to
depre ssthe brake pedalwith maximu mforce.
Before towing away,make surethatthe
steering canbemoved andisnot locked.
If you tow ortow-st artanother vehicle,its
weight mustnotexceed themaximum
permissible grossvehicle weightofyour
vehicle. G
WARNING The
vehicle isbraked whentheHOLD function
or DIS TRONIC PLUSisactivated. Therefore,
deactivate HOLDandDISTRONIC PLUSifthe
vehicle isto be towed.
It is better tohave thevehicle transported
than tohave ittowed.
! You may onlytowthevehicle amaximum
distance of30 miles (50km). Atowing
speed of30 mph (50km/ h)must notbe
exceeded.
For towing distances over30miles
(50 km), thevehicle mustloaded ontoa
trans porter.
! Make surethattheelectric parking brake
is released. Ifthe electric parking brakeis
faulty, visitaquali fiedspecialist workshop.
! Only secure thetow rope ortow baratthe
towing eyes.Otherwise, thevehicle could
be damaged. !
Donot use thetowing eyeforrecovery,
as this could damage thevehicle. Ifin
doubt, recover thevehicle withacrane.
! When towing, pullaway slowly and
smoothly. Ifthe tract ivepower istoo high,
the vehicles couldbedamaged.
! Donot tow with sling-t ypeequipment.
This could damage thevehicle.
! When towing vehicles withKEYLE SS-GO,
use thekey instead ofthe Start /Stop
button .Othe rwise, the automa tic
tra nsmi ssion mayshi ftto positio nP wh en
the driver 'sor fro nt-pa ssenge rdo or are
op ene d,wh ich cou ldlead todama getothe
tra nsmi ssion.
! Vehicle swi th diffe renti allocks: make
su re tha tthe differential locksarein
automatic mode.Whentowing, the
differential locksmustnotbeswitched on
by hand. Thiscould otherwise damagethe
transmission.
If the vehicle hassuffered transmission
damage, haveittransport edon atransport er
or trailer.
The automatic transmission mustbein
position Nwhen thevehicle isbeing towed.
The battery mustbeconn ected andcharged.
Otherwise, you:
R cannot turntheSmartK eytoposition 2in
the ignition lock
R cannot shifttheautomatic transmission to
position N i
Before
thevehicle istowed, switchoffthe
automatic lockingfeature(Ypage 235).
You could otherwise belocked outwhen
pushing ortowing thevehicle. Installing/
removingthetowing eye
Installing thetowing eye Vehicles
withatrailer towhitch: ifpossible,
secure thetowing deviceonthe trailer tow
hitch (Ypage 210). Towing
andtow-star ting
343Breakdown assistance Z

X
Remo vetheto win geye require dfor fron tal
or rear couplin gfrom theveh icleto ol kit
(Y page 328).
The moun ting sfor therem ovabletowin geyes
are locate din thebump ers.They areatthe
front andatthe rear, under thecovers. i
Observe
theidentification labelson the
towing eyesandtheinformation panelson
using thetowing eyeswiththevehicle. The
towing eyesmust beinstalled inthe correct
positions. Installthe longer towing eyeat
the front ofthe vehicle andtheshorter
towing eyeatthe back. X
To open thecover atthe front: press
cover :inwards inthe direction ofthe
arrow atthe marking.
X To open thecover atthe rear: insert a
flat, blunt object intothecutout andlever
off cover ;from thebumper.
X Take cover :or; offthe opening.
X Screw thetowing eyeinclockwise tothe
stop andtighten it.
Removing thetowing eye X
Loosen thetowing eyeand unscrew it.
X Att ach cover :or; tothe bumper and
press untilitengages.
X Place thetowing eyeinthe vehicle toolkit. Towing
avehicle withboth axles on
th egrou nd
When havingyour vehicletowed, obser vethe
impor tantsafe tyno tes(Y page 343). G
WAR
NING The
power assistancefor thest eerin gand the
brak efor ce boos terdonot work when the
eng ineisnot running.You willthen nee d
muc hmor eeff ort tobrak eand steer the
veh icle.Adapt yourstyle ofdriving
accor dingly.
The automatic transmission automatic ally
shift sto position Pwhen youopen thedriver's
or fron t-passenger doororwhen youremov e
the Smart Keyfrom theignit ionlock .In order
to ensure thattheautomatic transmission
stays inposition Nwhen towing thevehicle,
you must observe thefollowing points:
X Make surethatthevehicle isstat ionary and
the Smart Keyinthe ignit ionlock isin
position 0.
X Turn theSmart Keytoposition 2in the
ignit ionlock .
On vehicles withKEYL ESS-GO, usethekey
inst ead ofthe Start/ Stop butto n
(Y page 139).
X Depres sand hold thebrake pedal.
X Shift theautomatic transmission to
position N.
X Release thebrake pedal.
X Release theelect ricparkin gbrake.
X Switc hon the hazard warning lamps
(Y page 111).
X Leave theSmart Keyinposition 2in the
ignit ionlock . i
When
towing withthehazard warning
lamps switchedon, use thecombin ation
switch asusual tosignal achang eof
direct ion.Inthis case, onlytheturn signals
for the desired directionflash. When the
combin ationswitch isreset ,the hazard
warning lampsstartflashing again. 344
Towing
andtow-st artingBreakdown assistance