2012 MERCEDES-BENZ M-Class fuel pressure

Load
ingthevehicle Inst
ruction labels fortires and loads G
WAR
NING Do
not over load thetir es by exc eedin gth e
spec ified loadlimit asindi catedon theTire
and Loadin gIn for mat ionplacar don the
driv er'sdoor B-pillar .Overloa dingthetires
can overhea tthem, possibly causinga
blowou t.Overloading thetires canalso result
in handling orsteering problems, orbrake
failure.
Two instruct ionlabel son your vehicle show
the maximum possibleload.
(1) TheTire andLoading Informationplacard
on the B-pillar onthe driver's side.The
Tire andLoading Informationplacard
shows themaximum permissible number
of occupants andthemaximum
permissible vehicleload.Italso contains
details ofthe tire sizes and
corresponding pressuresfortires
mounted atthe factory.
(2) The vehicle identification plateison the
B-pillar onthe driver's side.Thevehicle
identification plateinforms youofthe
gross vehicle weightrating.Itis made up
of the vehicle weight, allvehicle
occupants, thefuel andthecargo. You
can also findinformation aboutthe
maximum grossaxleweight ratingonthe
front andrear axle.
The maximum grossaxleweight ratingis
the maximum weightthatcanbecarried
by one axle (front orrear axle). Never
exceed themaximum loadorthe
maximum grossaxleweight ratingforthe
front orrear axle. :
B-pillar, driver'sside Maximum
permissible grossvehicle
weig htrat ing i
The
specifications shownonthe Tire and
Loading Informationplacard inthe
illu stration areexamples. Themaximum
permissible grossvehicle weightratingis
vehicle-specific andmay differ fromthatin
the illustration .You can find thevalid
maximum permissible grossvehicle weight
rating foryour vehicle onthe Tire and
Loading Information placard. X
The Tire andLoading Information placard
gives youdetails onmaximum permissible
gross vehicle weightrating::"Thegross
weight ofoccupant sand luggage must
never exceed XXXkilograms orXXX
pounds." 362
Loading
thevehicleWheels and tires

Dir
ect ion ofrotation
Tir es wit haspe cifie ddir ection ofrotation
hav eaddit ionalben efits, e.g. ifth ere isaris k
of hydr oplaning .Y ou will only gain these
benefits ifthe correc tdirection ofrotat ionis
maintained.
An arrow onthe sidewal lof the tire indicates
its correc tdirection ofrotat ion.
You may mount aspare wheel/emergenc y
spare wheel against thedirection ofrotat ion.
Observe thetime restriction onuse aswell as
the speed limitspecified onthe spare wheel/
emergenc yspare wheel. Storing
wheels
Stor ewheels thatarenot being usedinacool,
dry and preferably darkplace. Protectthe
tires from oil,grease, gasoline anddiesel. Cleanin
gthe wheel s G
WARNING Do
not use power washers withcircular-jet
nozz les(dirt grinders) toclean yourvehicle, in
particular thetires. Youcould otherwise
damage thetires andcause anaccident. Wheel
andtirecombinations Please
bearthefollow inginmind
! For safety reasons, Mercedes-Ben z
recommen dsthat youonly useTires and
wheels whichhavebeen approved by
Mercedes-Ben zspecific allyforyour
vehicle. These
tireshave been specially adaptedfor
use with thecontrolsystems ,such asABS
or ESP®
,and aremark edasfollows:
R MO =Mercedes- BenzOriginal
R MOE =Mercedes- BenzOrigi nal Extended
(tires featuringrun-flat characteristics)
R MO1 =Mercedes- BenzOriginal (only
certain AMGtires)
Mercede s-BenzOriginalExtended tires
may onlybeuse don whee lsthat have been
speci ficallyapp roved byMercede s-Benz.
Only usetires, wheelsor accesso ries
tested andapproved byMercede s-Benz.
Certa inchara cteristics, e.g.handl ing,
vehicl enoise emissionsorfuel
consumptio n,may otherwi sebe adve rsely
affected. Inadd ition, when drivingwith a
loa d,tire dime nsion variations couldcaus e
the tires tocome intocontact withthe
body work andaxle components. Thiscould
resu ltin dama getothe tires orthe vehicl e.
Mercede s-Benzaccepts noliabil ity for
dama geresu lting from theuse oftires,
whee lsor accesso riesother thanthose
tested andapproved.
Further informati onabo uttires, wheelsand
app roved combina tionscanbeobtai ned
from anyauthorized Mercede s-Benz
Center. i
The
Tire andLoad Information placard
with therecommende dtire pressu resis
attached tothe B-pill aron the drive r'sside .
Further informati onabo utdrivi ngathigh
spee dsordrivi ngwith vehicl eloa dsthat are
lig hter than themaximu mvehicle loadcan
be found inthe tire pressure tableonthe
inside ofthe fuel filler flap.Check tire
pressures regularly,andonly when thetires
are cold. Comply withthemaint enanc e
recom mendat ionsofthe tire manufact urer
in the vehicle documen twallet .
For further inform ationon ther ecomm ended
tire inflation pressure andontire pressures
for specific drivingconditions (Ypage 353). Wheel
andtirecombinations
375Wheels and tires Z

Fuel
consu mption
Et han ol(E85 )co ntains lessenerg yper gallon
th an gaso line. To ensure that theen gin e
per forman cewithet han ol(E85 )is sim ilar to
th at when usinggaso line, thee ngine mu st
bu rn mor eetha nol.Asar esult, itis to be
expect edthat fuelconsumption willincrease
when usingethanolfuel (E85 ),compared to
gasoline.
Maint enance
Inf orm your authoriz edMercedes- Benz
Center thatyouareoperatin gor have
operated thevehicle withethan ol(E85 ).
Low outsid etemp eratures
St artin gtimes maysignific antlyincrease at
temper aturesbelow32‡(0 † ).At low
outside temperatures, Mercedes- Benz
recom mends theuse ofan auxiliary heater.
For furth erinfor mation ,con sult anauthoriz ed
Mercedes- BenzCent er.
Rough idlingmayalsobeexperien cedatlow
outside temperaturesuntiltheengin eis fully
warmed up.
Et hanol (E85)is unsuitable foruse ifoutside
temper aturesfallbelow 14‡(-10 †).
High outside temperatures
At outsi detempera turesabove95 ‡(35 †) ,
the timereq uired forthe starting pro ced ure
ma yincr ease and beacc omp anied byrou gh
id ling followi ng the start.
Fu elrequ iremen ts Gas
olin een gine s
Use onlypre mium -gra deunleade dga soline.
Th eocta nenum bers hould beatleast 91.
Details canbefound onthe gas pump. The
octane number isthe average valueofthe
Research OctaneNumber (RON)andthe
Motor Octane Number (MON):(RON+
MON) /2, also known asknoc kresistance. Reformulated
gasoline(RFG)and/or
unleaded gasolinewithadditives canbeused.
However, theconc entration ofadditives in
the fuel must beless than 10%, e.g.
R Ethan ol
R TAME
R ETBE
R IPA
R TBA
For MTBE, theconc entration should not
exceed 15%.
The conc entration ofmethanol ingasoline
including otheradditives mustnotexceed 3%.
Using mixtures ofmethanol andethanol isnot
permitted. Gasohol,amixture of10% ethanol
and 90% unleaded gasoline,canbeused.
All ofthese mixfuels must fulfillthefuel
requirements, e.g.:
R knoc kresistance
R boiling point
R vapor pressure
Diese lengine s–i mporta ntsaf ety notes
! Onlyus ecomm ercially av ailabl e ULT RA-
LOW SULF URDIESEL FUEL(ULSD, 15ppm
MAX IMUMSULF UR)tha tmee tsthe
ASTM D975standa rd.Failure to use
ULT RA-L OWSULF URDIESEL FUEL(ULSD)
can sever elyda ma gethe vehicle'sexh aust
ga saf tertr eatment syste m.
! Donot fill the tank with gasol ine .Do not
bl end dies elfuel with gasol ine orkero sene.
Othe rwise, the fuel syste ma ndthe engine
cou ldbe dama ged.
To pre vent malfunctio ns,diese lfu el with
imp rove dflo wcha racteri stics isavailabl e in
the winter month s.Ch eck with your gas
sta tion.
Info rma tiono nthe fuel grade canusua llybe
found onthe gas pump. Ifthe information
cannot befound onthe gas pump, askthegas
station personnel. Forfurther information ,
consult anauthorized Mercedes-Ben zCent er 386
Service
products andcapa citiesTechnical data