water MERCEDES-BENZ M-Class 2012 W166 User Guide
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2012, Model line: M-Class, Model: MERCEDES-BENZ M-Class 2012 W166Pages: 396, PDF Size: 14.48 MB
Page 321 of 396

If
the vehicle isvery dirty, pre-wa shitbefore
cleaning itin an automa ticcar was h.
! Incar was hes with atowing mechanism,
make surethattheautoma tictransmission
is in transmission positionN, otherwis ethe
vehicle couldbedama ged.
R Vehicle swith aSmartKey:
Do not remove theSmartKey fromthe
ignition lock.Donot open thedriver's
door orfront-passenger doorwhen the
engine isswitched off.Otherwise ,the
automa tictransmission selectspark
positio nP automa ticallyand locks the
whee ls.You canprevent thisbyshifting
the automa tictransmission toN
beforeha nd.
R Vehicle swith KEYLESS- GO:
Do not open thedriver's doororfront-
passe ngerdoor when theengine is
switched off.Otherwise ,the automa tic
transmission selectsparkpositio nP
automa ticallyand locks thewhee ls.
Observe thefollo wing tomake surethatthe
automa tictransmission staysinpositio nN:
X Make surethevehicle isstationary andthe
ignition isswitched off.
X Turn theSmartKey topositio n
2 (Y page 139)inthe ignition lock.
Use theSmartKey insteadofthe Start/
Stop button onvehicle swith KEYLESS- GO.
X Depress andhold thebrake pedal.
X Shift theautoma tictransmission to
positio nN.
X Rel ease thebrake pedal.
X Rel ease theelectric parking brake.
X Switch offthe ignition andleavethe
SmartKey inthe ignition lock.
! Make surethat: R
the side window sand thesliding sunroof
are fullyclosed.
R the ventilation/hea tingisswitched off
(the OFF button hasbeen pressed ).
R the windshi eldwiperswitch isin positio n
0.
Otherwise ,the vehicle mightbedama ged.
After using anautoma ticcar was h,wip eoff
wax from thewindshi eldand thewiper
bla des. Thiswillprevent smearsandreduce
wip ing noises causedby residu eon the
windshi eld.
Washing byhand In
some countries, washing byhand isonly
all owed atspecia llyequ ippe dwas hing bays.
Observe thelega lrequi rements inall
countries concerned.
X Do not use hotwater anddonot was hthe
vehicle indirect sunlight.
X Use asoft sponge toclean.
X Use amild cleaning agent,suchasacar
shampo oapp roved byMercedes-Benz.
X Thorou ghlyhose down thevehicle witha
gentle jetofwater.
X Do not point thewater jetdirectly towards
the airinlet.
X Use plenty ofwater andrinse outthe
sponge frequently.
X Rinse thevehicle withclean water anddry
thoroughl ywith achamois.
X Do not letthe cleaning agentdryonthe
pai ntwork.
When usingthevehicle inwinter, remove all
traces ofroad saltdepos itscareful lyand as
soon aspossi ble.
Pow erwashe rs G
WARNING Do
not use powe rwasher swith circular -jet
no zzles (dirt grinders )to cle anyour vehicle,in
part icular thetir es. You couldot her wise
damage thetir es and caus ean acc iden t. Car
e
319Maintenance and care Z
Page 322 of 396

!
Alway smaintain adistance ofat least
11.8 in(30 cm) between thevehicle andthe
power washer nozzle.Information about
the correct distance isavail able from the
equi pment manufacturer.
Move thepower washer nozzlearound
when cleaning yourvehicle.
Do not aim directly atany ofthe followi ng:
R tires
R door gaps, roofgaps, joints etc.
R electrical component s
R battery
R conn ectors
R lights
R seals
R trim elements
R ventilation slots
Damaged sealsorelectrical component s
can lead toleaks orfailu res.
Cle aning thewhee ls !
Donot use acidic wheelcleaning products
to remove brakedust.Thiscould damage
wheel boltsandbrake component s.
! Donot park thevehicle foranextended
period straight aftercleaning it,particula rly
after having cleaned thewheels withwheel
cleaner. Wheelcleaners couldcause
increased corrosionofthe brake discsand
brake pads/li nings.Forthis reason, you
should driveforafew minutes after
cleaning. Brakingheatsthebrake discsand
the brake pads/li nings,thusdrying them.
The vehicle canthen beparked.
Cle aning thepaintwork Scratc
hes,corrosive deposits,areasaffected
by corrosion anddamage causedby
inadequ atecare cannot always becompletely
repaired .Ins uch cases, visitaqualif ied
spec ialist workshop,e.g. an auth orized
Mer cedes- BenzCent er. X
Remove impurities immediately, where
possible, whilstavoiding rubbingtoohard.
X Soak insectremains withinsec tremover
and rinse offthe treat edareas afterwards.
X Soak birddroppings withwater andrinse
off the treat edareas afterwards.
X Remove coolant,brake fluid,treeresin,
oils, fuels andgreases byrubbing gently
with aclot hsoaked inpetroleum etheror
lighter fluid.
X Use tarremover toremove tarstains .
X Use silicone remover toremove wax.
! Donot affix:
R stic kers
R films
R magnet icplates orsimilar items
to painted surfaces. Youcould otherwise
damage thepaintwork .
If water nolonger forms"beads" onthe paint
surface, usethepaint careproduct s
recom mended andapproved byMercedes-
Ben z.This isthe case approximat elyevery
thr ee tofive mont hs,depending onthe
climate conditions andthecare product used.
If dirt has penet rated thepaint surface orthe
paint hasbecome dull,thepaint cleaner
recom mended andapproved byMercedes-
Ben zshould beused.
Do not use these careproducts inthe sun or
on the hood while thehood ishot.
X Use asuitable touch-up stick,e.g. MB
Touch-Up Stick,to correct smaller areasof
paint damage quicklyandprovisionally .
Matt efinish care If
your vehicle hasaclear matte finish,
observe thefollowing instructionsinorder to
avoid damage tothe paintwork dueto
incorrec tcare.
These notesalsoapply tolight alloy wheels
with aclear matte finish. 320
CareMaintenance and care
Page 323 of 396

!
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
Page 324 of 396

Clean
ingtheext erior ligh ting X
Clean theplast iclen ses oftheex terior
light swit hawet spon geand amild cleanin g
agen t,e.g .M ercedes- Benzcarsham pooor
cle anin gclo ths.
! Onlyuse cleanin gagen tsor cle anin g
clo thswhic hare suitable forplast iclight
len ses .Unsu itable cle ani ng agents or
cle ani ng cloths couldscra tchordama ge
the plas tic light lenses .
Cl ean ingthe sens ors X
Clea ns ensor s: ofthe driving systems
with water, carshampoo andasoft cloth.
! When cleanin gthe sensor swith apower
washer, maintainadistanc ebetween the
vehicle andthenozzleofthe power washer
of at least 11.8in (30 cm). Information
about thecorr ectdistanc eis available from
the equipment manufacturer. Cleaning
therear view camer a X
Use clear water andasoft clothto clean
camera lens:.
! Donot clean thecamera lensandthearea
around therear view camera withapower
washer.
Cleaning thetrailer towhitch The
ballcoupling mustbecleaned ifit
becomes dirtyorcorr oded.
X Remove rustonthe ball ofthe ball coupling,
e.g. with awire brush.
X Remove dirtwith aclean, lint-free clothor
a brush.
X Aft ercleanin g,lightly grease theball ofthe
ball coupling again.
X Check thatthevehicle's trailertowhitchis
workin gproperly.
! Observe thenoteon care provided bythe
trailer manufact urer. i
You
canalso have themaint enanc ework
on the ball coupling andthetrailer towhitch
carried outbyaqualified specialist
worksho p. H
Environment
alnote Dispose
ofrags soaked inoil and grease inan
enviro nmentallyrespon siblemann er. 322
CareMaintenance and care
Page 326 of 396

plastic
trim.This maintains thehigh-quali ty
look ofthe surfaces.
X Wipe theplastic trimwith adamp, lint-free
cloth, e.g.amicrofiber cloth.
X Heavy soiling:use carcare andcleaning
products recommen dedandapproved by
Mercedes-Ben z.
The surface maychange colortemporarily.
Wait untilthesurface isdry again.
Cleanin gthe steering wheelandgear or
selec torlever X
Thoroughly wipewithadamp clothoruse
leather careagents thathave been
recommen dedandapproved byMercedes-
Benz .
Cleanin ggenuine woodand trim
elements X
Wipe thewooden trimandtrim pieces with
a damp, lint-free cloth ,e.g. amicr ofiber
clo th.
X Hea vysoilin g: usecar care andcleani ng
pro ducts reco mmend edand appro ved by
Mer cedes-Be nz.
! Donot usesol vent-b ased cleani ngagents
su ch astar remo ver,wheelcleaner s,
polishes orwaxes. Thereisoth erwise arisk
of damagin gthe surface.
! Donot use chrome polish ontrim pieces .
The trim pieces haveachr ome lookbutare
most lymade ofanodiz edaluminum and
can lose theirshin eif chr ome polish is
used. Useadamp, lint-free clothinst ead
when cleaningthe trim pieces .
If the chrome- plated trim pieces arevery
dirt y,you can useachr ome polish. Ifyou
are unsur eas towhet herthetrim pieces
are chrome- plated ornot ,con sult an
author izedMerc edes- BenzCent er. Cleaning
theseat covers !
Donot use microf iberclothstoclean
genuine leather,artificialleather or
Alcan tara® covers.Ifused often,these can
damage thecover .
! Observe thefollowing whencleanin g:
R clean genuine leathercoverscaref ully
wit hadamp clothand then wipe the
co ver sdown withadry cloth.M ake sure
th at theleat her does notb ecome
soaked. Itmay other wisebecome rough
and crack ed.Only useleather care
agents thathave been testedand
approved byMercedes- Benz.You can
obtain thesefromaqualified specialist
worksho p,e.g. aMercedes- BenzService
cen ter.
R clean artificialleather coverswith aclot h
moisten edwith asolution containin g1%
detergen t(e.g. dish washing liquid).
R clean clothcover swith amicrof ibercloth
moisten edwith asolution containin g1%
detergen t(e.g. dish washing liquid).Rub
carefully andalway swipe entireseat
sect ions toavoid leaving visiblelines.
Leave theseat todry afterwards.
Cleaning resultsdepend onthe type of
dirt and how long ithas been there.
R clean Alcantara® coverswith adamp
clot h.Make sureyouwipe entireseat
sect ions toavoid leaving visiblelines. i
Note
thatregular careisessent ialto
ensure thattheappearance andcomf ortof
the cover sis retain edover time.
Cleaning theseat belts X
Use clean, lukewarm waterandsoap
solution.
! Donot clean theseat belts using chemic al
cleanin gagents .Donot drythe seat belts
by warming themabove 176‡(80 †)or
placing themindirect sunlight. 324
CareMaintenance and care
Page 333 of 396

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
Page 341 of 396

short
tripsorifyou leave itstanding idlefor
a lengthy period.
Only replace abattery withabattery thathas
been recommended byMercedes-Benz .
Consult anauthorized Mercedes-Benz Center
if you wish toleave yourvehicle parkedfora
long period oftime. G
WARNING Comply
withsafety precautions andtake
protective measureswhenhandling batteries. Risk
ofexplosion Fire,
naked flames and
smoking areprohibited
when handling thebattery.
Avoid creating sparks. Battery
acidiscaustic.
Avoid contactwith theskin,
eyes orclothing.
Wear suitable protective
clothing, inparticular
gloves, anapron andaface
mask.
Immediately rinseacid
splashes offwith clean
water. Consult adoctor if
necessary. Wear
eyeprotection . Keep
children away. Observe
thisOperator's
Manual . H
Environmental
note Batteries
containdangerous
substances. Itis agai nstthe
law todispose ofthem with
the household rubbish.They must
becollected separately
and recycled toprotect the
environmen t. Dispose
ofbatteries inan
environmen tallyfriendly
manner. Returndischarged
batteries toaqual ified
speciali stworkshop, e.g.an
authorized Mercedes-Benz
Center, ortoaspecial
collection pointforold
batteries. G
WARNING Failure
tofollow theseinstruct ionscanresult
in severe injuryordeath.
Never leanover batteries whileconnecting.
You might getinjured.
Battery fluidcontains sulfuric acid.Donot
allow thisfluid tocome incont actwith eyes,
skin orclothing. Incase itdoes, immediately
flush affected areawithwater andseek
medical helpifnecessary.
Ab attery will also produce hydro gengas,
whic his flam mable andexplosiv e.Keep
flam esorspar ksaway from battery, avoid
impr oper connectionof jum per cable s,
smo kinget c. G
WAR
NING Do
notp lace anymetalobje ctson the batt ery
as this could result inashor tcircuit .
Use leak- proof batteries onlytoavoid therisk
of acid burnsin the even tof an acc ident .
Take carethatyoudonot becom estat ically
char ged, e.g.bywearin gsynt het icclo thingor
rubb ing again sttextiles .For this reason, you
also should notpull orpush thebattery over
carpets orother synthet icmaterials.
Never touchthebattery first.First, touch the
outside bodyofthe vehicle inorder torelease
any possible electrostaticcharges.
Do not rub thebattery withrags orcloths. The
battery couldexplode iftouched dueto Bat
tery
339Breakdown assistance
Z
Page 343 of 396

Jump
-starting G
WARNING Failure
tofollow thesedirections willcause damage tothe electronic componen ts,and canlead
to abattery explosion andsevere injuryordeath.
Never leanover batteries whileconnecting orjump startin g.You might getinjured.
Battery fluidcontains sulfuric acid.Donot allow thisfluid tocome incont actwith eyes, skinor
clothing. Incase itdoes, immediately flushaffected areawithwater, andseek medical helpif
necessary.
Ab attery will also producehydro gengas, whichis flam mable andexplosiv e.Keep flamesor
spar ksaway from battery, avoid improper connectiono fjumpe rcables, smoking,etc.
At tempt ingtojum pstart afroz en bat tery can result initexp lodin g,caus ingpers onalinj ury.
Read allinstruct ionsbefo reproc eedin g.
! Avoid repe atedand lengthy start ing attempt s.Ot her wise, non-com bust edfuel may
damage thecat alytic converter27
and creat earisk offire.
Do notu se arapid-charging devicetostart theengine.
Make surethejumper cablesarenot damage d.
Make surethejumper cablesarenot touching anyother metal objects whentheyare
conn ected tothe battery.
If your vehicle's batteryisdischarged, theengine canbejump-start edfrom another vehicle
or from asecond batteryusingjumper cables.
Observe thefollowi ngpoints:
X The battery isnot accessible inall vehicles. Ifthe other vehicle's batteryisnot accessible,
jump-start thevehicle usingasecond batteryorajump- start ing device.
X On lyjum p-start theveh iclewhen theen gin eis co ldand thecat alyti cconvert ersystem has
cooled down28
.
X Do not start theengine ifthe battery isfroz en.Let the battery thawfirst.
X Jump-start ingmay onlybeperformed frombatteries withanominal voltageof12 V.
X Only usejumper cableswhichhaveasufficient cross-section andinsulated terminalclamps.
X Make surethatthejumper cablescannotcome intocontactwith parts, suchasthe pulley
or the fan. These partsmove whentheengine isstart edand while itis runnin g.
X Ifthe battery isfully discharged, leavethebattery thatisbeing usedtojump-st artconn ected
for afew minutes beforeattempt ingtostart .This charges theempty battery alittle. i
Jumper
cablesandfurther information aboutjump-st artingcanbeobtained fromany
authorized Mercedes-Ben zCent er,for example.
X Make surethatthetwo vehicles donot touch.
X Secure thevehicle byapplying theelectr icparkin gbrake.
X Shift thetran smission toposition P.
27 Only vehicles withagasoline engine.
28 Only vehicles withagasoline engine. Jum
p-starting
341Breakdown assistance Z
Page 386 of 396

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
Page 389 of 396
![MERCEDES-BENZ M-Class 2012 W166 User Guide
or
go tothe Internet site
htt p:// www.mbusa.com (USAonly).
Diese lengines –fuels containi ngbio -
dies el(FAME [fatty acidmethyl ester])
Merced es-Benz USAapproves theuse ofB5
for alldie sel engin MERCEDES-BENZ M-Class 2012 W166 User Guide
or
go tothe Internet site
htt p:// www.mbusa.com (USAonly).
Diese lengines –fuels containi ngbio -
dies el(FAME [fatty acidmethyl ester])
Merced es-Benz USAapproves theuse ofB5
for alldie sel engin](/img/4/3558/w960_3558-388.png)
or
go tothe Internet site
htt p:// www.mbusa.com (USAonly).
Diese lengines –fuels containi ngbio -
dies el(FAME [fatty acidmethyl ester])
Merced es-Benz USAapproves theuse ofB5
for alldie sel engines withcommon raildire ct
injection (CDI)andBlue TEC. The
concentration ofbio -dies elin ULSD maybea
maximu mof up to5% byvolu me.
Pure bio-dies eland diesel fuel sthat have a
high erconcentration ofbio -dies el,e.g. B20,
can dama gethe fuel system andtheengine.
They aretherefore notapproved.
For further informa tion,please askthegas
station personnel.Thelabel onthe gas pump
must indicate clearlythat theB5bio-dies el
ble nd fulfillsthe ULSD standa rd.Ifthe label
is not clea r,do not refue lthe vehi cle.
Do not refue lyou rvehicle withfuels unless
they have been approved byMercedes- Benz.
Addit ivesingasoline One
ofthe main problems ofpoor fuelquality
is the formin gof deposits thatarecreat ed
during thegasoline combustionprocess .
Mercedes- Benzrecom mends thatyouuse
fuel brands thathave theadditives.
Deposit smay form ifyou usefuels without
additives overalonger period oftime. These
deposits aremost likely toform onthe inlet
valves andinthe combust ionchamber.
This could leadtoengin eproblems, e.g.:
R longer enginewarm-up phase
R uneven idle
R engin enoise
R misfirin g
R loss ofpower
Carbon deposits mayform ifthe availabili ty
of gasoline withrelevant additives is
insuffic ient(incert ainregions). Inthis case,
Mercedes- Benzrecom mends theuse of
additives thathave been approved for
Mercedes- Benzvehicles. Consult
anauthoriz edMercedes- BenzCent er
or go tothe Internet site
htt p:// www.mbusa.com (USAonly)foralist
of approved products.Comply withthe
inst ruct ions foruse onthe product label.
Do not mix other fueladditives withfuel. This
causes unnecessary costsand could damage
the engin e.
! Donot refuel withlow-grade fuelanddo
not use fuel additives thatarenot tested
and approved forMercedes- Benzvehicles.
Damage toor malfunct ionsofthe fuel
system mayother wiseoccur. DEF
Impor tantsafet ynotes i
For
BlueTEC vehiclesonly.
DE Fisa non- flammable ,non- toxic, colorless,
odorless andwater-solubl efluid.
! Rinse surfaces thathave come into
cont actwith DEFimmediately withwater or
remove DEFusing adamp clothandcold
water. Ifthe DEF hasalrea dycrystallized,
use asponge andcold water toclean it.DEF
residues crystallize aftertimeand
cont aminate theaffected surfaces.
High outside temperatures If
DEF heats uptoover 122‡(50 †)for
extended periods,e.g.asaresult ofdirect
sunlight onthe DEF reservoir, DEFcan
decompose. Ammoniavapors develop asa
result. G
WARNING When
opening thefiller capofthe DEF tank
ammonia gasvapors mayescape. RefillDEF
in awell ventilated areaonly. Ammonia gas
vapors haveapungent odorandare
particularly irritatingforyour skin, mucous
membranes, andeyes. Inhaling ammonia gas
vapors willcause burning eyes,nose, and
throat, aswell ascoughing andwatering eyes. Service
productsand capacities
387Technical data Z