2012 MERCEDES-BENZ M-Class ESP

If
you wish tocancel theres tart:
X Pre ssthe% button.
or
X Ifth e Tir
ePre ssureNow OK? mes
sage
appear s,pre ss9 or: tosele ct Can
cel .
X Pre ssthea button.
The tirepre ssur evalues store dat thelast
res tartw illcon tinue tobe mon itored. Tir
epr essur emonit or
Imp ortant safety notes If
atir epress uremon itorsyst emisinst alled,
the vehic le'swheels havesensors that
mon itorthetirepress uresinall four tires. The
tir epress uremon itorwarns youifthe
press uredrops inone ormor eof the tires. The
tir epress uremon itoronly functionsif the
cor rectwheel electronic sunits areinstalled
on allwheels.
The tirepressure monitorhasayell ow
warning lampinthe instrumen tcluster for
indicating pressureloss/malfunction s(USA)
or pressure loss(Canada ).Whether the
warning lampflashes orlights upindicates
whether atire pressure istoo low orthe tire
pressure monitorin gsystem is
malfunctionin g:
R ifthe warning lampislit cont inuously ,the
tire pressure onone ormore tiresis
significantly toolow. Thetirepressure
monitor isnot malfunctionin g.
R USA only: ifthe warning lampflashes for
60 seconds andthen remains litconst antly,
the tire pressure monitorismalfunctionin g. G
WARNING Each
tire,including thespare (ifprovided),
should becheck edatleast once amont h
when coldandinflated tothe pressure
recommen dedbythe vehicle manufacturer
on the Tire andLoading Informationplacard
on the driver's doorB-pillar orthe tire
pressure labelonthe inside ofthe fuel filler flap.
Ifyour vehicle hastires ofadifferent size
than thesize indicated onthe Tire andLoading
Inform ationplacard orthe tire pressure label,
you should determine theproper tirepressure
for those tires.
As anadded safetyfeature, yourvehicle has
been equipp edwith atire pressure monitorin g
system (TPMS)thatilluminates alow tire
pressure telltalewhenoneormore ofyour
tires aresignificantly underinflated.
Acc ordingly, whenthelow tirepressure
telltale illuminates, youshould stopandcheck
your tires assoon aspossible, andinflate
them tothe proper pressure. Drivingona
significantly underinflated tirecauses thetire
to overheat andcanlead totire failure.
Underinflation alsoreduces fuelefficiency
and tiretread life,and may affect thevehicle's
handling andstopping ability.
Please notethattheTPMS isnot asubstitute
for proper tiremaintenanc e,and itis the
driver's responsibility tomaintain correcttire
pressure, evenifunderinflation hasnot
reached thelevel totrigger illumination ofthe
TPMS lowtirepressure telltale.
USA only:
Your vehicle hasalso been equipp edwith a
TPMS malfunction indicatortoindicate when
the system isnot operating properly.The
TPMS malfunction indicatoriscombined with
the low tirepressure telltale.Whenthe
system detects amalfunction, thetelltale will
flash forapproximately oneminute andthen
remain continuously illuminated. This
sequence willberepeated everytimethe
vehicle isstarted aslong asthe malfunction
exists.
When themalfunction indicatorisillu minated,
the system maynotbeable todetect orsignal
low tirepressure asintended. TPMS
malfunctions mayoccur foravariety of
reasons, including theinstallation of
incompatible replacementoralternate tires
or wheels onthe vehicle thatprevent the
TPMS fromfunctioning properly. Always
check theTPMS malfunction telltaleafter Tire
pressure
359Wheels and tires
Z

repla
cingoneormore tiresorwhee lson you r
vehicl eto ensure thattherepla cement or
alterna tetires andwhee lsall ow the TPMS to
continue tofunction properly. i
USA
only:
If the tire pressu remonitor is
malfu nctioning, itmay take more than
10 minutes forthe tire pressu rewarni ng
lamp toinform youofthe malfu nction by
flas hing for60seconds andthen remai ning
lit.
When themalfu nction hasbeen rectified ,
the tire pressu rewarni nglamp goesout
after drivingfor afew minutes.
Information ontire pressu resisdisp layed in
the multi function display.After afew minutes
of drivi ng,the current tirepress ureofeach
tire isshow nint he multifunction display. i
The
tirepressure valuesindicated bythe
on-board computer maydiffer fromthose
measured atagas station withapressure
gauge. Thetirepressures shownbythe on-
board computer refertothose measured at
sea level. Athigh altitudes, thetire pressure
values indicated byapressure gaugeare
higher thanthose shown bythe on-board
computer. Inthis case, donot reduce the
tire pressures. i
The
operation ofthe tire pressure monitor
can beaffected byinterfer encefromradio
transmit tingequipment (e.g.radio
headphones, two-wayradios)thatmay be
being operated inor near thevehicle. i
USA
only:
This device complies withPart15ofthe
FCC Rules. Operation issubject tothe
following twocondition s:
1. This device maynotcause interfer ence,
and
2. this device mustaccept anyinterfer ence
received, includinginterferencethatmay
cause undesired operation. Any
unauthorized modificationtothis
device couldvoidtheuser’s authority to
operate theequipment. 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 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.
Checking tirepressur eelec tronically X
Make surethattheSmartK eyisin position
2 (Y page 139)inthe ignition lock.
X Press the= or; button onthe
steering wheeltoselect the Serv. menu.
X Press the9 or: button toselect Tire
Pressure .
X Press thea button.
The current tirepressure foreach wheel will
be displa yedinthe multifunction display.
If the vehicle hasbeen parked forlonger than
20 minutes, the Tire
pressure willbe displayed
afterdriving afew minutes message
appearsinthe displa y.
Aft erateach-in period,thetire pressure
monitor automatically recognizesnew wheels
or new sensors. Ifac lear allocat ionofthe tire
press urevalues tothe indiv idual wheels isnot
possible ,the Tire
Pressure Monitor Acti
ve mess
ageisshown instead ofthe tire
press uredisplay. Thetirepress uresare
already beingmonitored. i
If
aspare wheel/ emergencyspare wheel
is moun ted,thesyst emmay continue to
show thetirepress ureofthe wheel thathas
been removedforafew minutes .If this
occ urs, notethat thevalue displayed for
the posit ionwhere thespare tireis 360
Tir
epr essur eWheels and tires

mounted
isnot thesame asthe spare
whee l/emerg encyspare wheel'scurrent
tire pressu re.
Tire pressure monitorwarning
message s If
the tire pressu remonitor detectsa
signifi cantpressu reloss onone ormore tires,
a warni ngmessa geisshow nint he
multifunction display.Aw arning tone also
soun dsand thetir epres sure warninglamp
light sup intheins trumen tcluster .
Eac htir ethat isaffec tedbyasign ificant loss
of press ureishighligh tedwith acolor .
If the Corr
ect Tire Pressure mess
age
appears inthe mult ifunc tiondisplay:
X Check thetirepress ureonallfour wheels
and correctit ifnec essary. i
If
the wheel positionsonthe vehic leare
int erc hang ed,the tirepress uresmaybe
displayed forthe wron gposit ionsfora
shor ttime. Thisisrec tified afterafew
min utes ofdrivin g,and thetirepress ures
are displayed forthe correctpositions.
Restar tingthetire pressur emonitor G
WARNIN
G It
is the driver's responsibility toset the tire
pressure tothe recommen dedcold tire
pressure. Underinflatedtiresaffect theability
to steer orbrake thevehicle. Youmight lose
cont rolover thevehicle.
When yourestart thetire pressure monitor,
all existin gwarning messages aredeleted and
the warning lampsgoout. Themonit oruses
the current lyset tire pressures asthe
referen cevalues formonit oring. Inmost
cases, thetire pressure monitoringsystem
recogn izesthenew referen cevalues
automatically. However,
youcan also define referen ce
values manually asdescribed here:
X Set thetire pressure (Ypage 353)tothe
value recomm endedforthe correspon ding
driving situation onthe Tire andLoading
Infor mation placard onthe driver's side
B-pillar.
Additional tirepressure valuesfordriving
at high speeds orwith heavy loadscanbe
found inthe tire pressure tableonthe
inside ofthe fuel filler flap.
X Make surethatthetire pressure iscorrec t
on allfour wheels.
X Make surethattheSmart Keyisin position
2 in the ignition lock.
X Press the= or; button onthe
steerin gwheel toselect the Serv. menu.
X Press the9 or: button toselect Tire
Pressure .
X Press thea button .
The multifunct iondisplay showsthe
current tirepressure ofthe individual tires
or the Tire
pressure willbe displayed
afterdriving afew minutes message.
X Press the: button .
The Use
Current Pressures asNew Reference
Values message
appearsin
the multifunct iondisplay .
If you wish toconfirm theresta rt:
X Press thea button .
The Tire
Press. Monitor Restarted message
appearsinthe multifunct ion
display .
Aft erdriving forafew minutes, thesystem
check swhether thecurrent tirepressures
are within thespecified range.Thenew tire
pressures arethen accepted asreferen ce
values andmonit ored.
If you wish tocancel theresta rt:
X Press the% button .
The tirepressure valuesstored atthe last
restart willcont inue tobe monit ored. Tir
epr essure
361Wheels and tires Z

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

The
gross weight ofall vehicle occupant s,
cargo, luggage andtrailer load/noseweight (if
applicable) mustnotexceed thespecified
value. Num
berofseats i
The
specification sshown onthe Tire and
Loading Information placard inthe
illustration areexamples. Thenumber of
seats isvehicle-spec ificand candiffer from
the details shown. Thenumber ofseats in
your vehicle canbefound onthe Tire and
Loading Information placard. Maximum
numberofseats :determin esthe
maximum numberofoccupant sallowed to
travel inthe vehicle. Thisinform ationcanbe
found onthe Tire andLoading Information
placard. Determining
thecorrect loadlimit
Step- by-step instructions The
following stepshavebeen developed as
required ofall manufact urersunder Title49,
Code ofU.S .Federal Regulations, Part575
pursuant tothe "National TrafficandMotor
Vehicle SafetyAc tof 196 6".
X Step 1:Locat ethe statement "The
combin edweight ofoccupan tsand cargo
should neverexceed XXX kgorXXX lbs." on your
vehicle’s TireandLoading Informat ion
placard.
X Step 2:Det ermine thecombin edweight of
the driver andpassengers thatwillberiding
in your vehicle.
X Step 3:Subtr actthe combin edweight of
the driver andpassengers fromXXX
kilograms orXXX lbs.
X Step 4:The resultin gfigure equals the
available amountofcargo andluggage load
capacity. Forexample, ifthe "XXX" amount
equals 1400lbs and therewill befive
150 lbspassenger sin your vehicle, the
amount ofavailable cargoandluggage load
capacit yis6 50 lbs (1400 -750 (5x150) =
650 lbs).
X Step 5:Determine thecombi nedweight of
lu gga geand cargo being loaded onthe
vehi cle. Thatweight maynotsafely exceed
the available cargoandluggage load
capacity calculated instep 4.
X Step 6(if app licable): Ifyour vehicle will
be towing atrailer, loadfrom yourtrailer
will betran sferr edtoyour vehicle. Consult
this manual todeterm inehow thisreduces
the available cargoandluggage load
capacity ofyour vehicle (Y page 365). Loading
thevehicle
363Wheels and tires Z

Exam
ple1 Exam
ple2 Exam
ple3 St
ep 3 Per
mis sible cargo
and trailer load/
noseweigh t
(ma ximum gros s
vehi cleweight ratin g
fr om theTir eand
Load ingInfor mation
pla car dmin usthe
gros sweight ofall
occup ants) 15
00 lbs
(68 0kg )-
75 0lbs (340kg )
= 75 0lbs
(34 0kg ) 15
00 lbs
(68 0kg )-
54 0lbs (245kg )
= 96 0lbs
(43 5kg ) 15
00 lbs
(68 0kg )-
15 0lbs (68 kg)=
135 0lbs
(612 kg) The
higher theweight ofall the occupants, thesmaller themaximum loadforluggage.
Furt herinfor mation canbefound under "Towing atrail er" (Ypag e365). Vehic
leidenti ficationplate
Even ifyou have calculated thetotal load
carefu lly,you shou ldstill make surethatthe
gross vehiclewei ght rating andthegross axle
wei ght rating arenot exceede d.Detail scan
be found onthe vehicl eide ntification plateon
the B-pill aron the drive r'sside (Ypag e362).
Gross vehiclewe ight: thegross weight of
the vehicl e,all pas sengers, cargoandtrailer
loa d/nosew eight(ifapplicable) mustnot
exc eed theperm issible grossvehic leweight .
Gr oss axle weight rating: themaxim um
perm issible loadthatcanbecarr iedbyone
axle (frontor rear axle).
To ens ure that your vehic ledoes notexceed
the maxim umperm issible values (gross
vehic leweight andmaxim umgros saxle
weight rating), have yourloaded vehicle
(inc luding driver,occ upant s,carg o,and full
tr ailer loadifapplicable) weighedona
suitable vehicleweighbr idge. Tr
ailer load/noseweight
The trailer load/n oseweigh taffects thegross
wei ght ofthe vehi cle. Ifatrail erisattached ,
the trail erloa d/nosew eightisinclu dedinthe
loa dalong with occupa ntsand lugga ge. The
trail erloa d/nosew eightisusu ally app
roxima tely8%ofthe gross weight ofthe
trail erand itsload. Maximum
loadrating G
WARNING Do
not overl oadthetires byexceedi ngthe
speci fiedloadlimi tasindicated onthe Tire
and Loading Information placardonthe
driver's doorB-pillar. Overloading thetires
can overheat them,possibly causinga
blowou t.Overloading thetires canalso result
in handling orsteering problems, orbrake
failu re. i
The
actual valuesfor tires arespecific to
each vehicle andmay deviate fromthe
value sin the illustration. Maximum
loadrating
365Wheels and tires Z

You
should payspec ialattent ion toroad
con dition swhen temperat uresarearound
the free zingpoint .
Merc edes- Benzrecomm endsaminimum tire
tread depth of1
/ 6in
(4 mm) forallfour winter
tires (Ypage 352)tom aint ainnorm aldriv ing
ch arac teris tic sin wint er.Win tertir es can
reduc eth ebrak ingdist anceonsnow cove red
su rfa ces incomp arison tosumme rtires.
St oppin gdist ance,howeve r,is still
con siderably greaterthan when theroad is
not covered withiceorsno w.Take
appropr iatecare when driving.
! Avoid wheelspin .This can lead todamage
to the drive train. Temp
erature G
WARNING The
temperature gradeforthis tireis
established foratire that isproperly inflated
and notoverloaded. Excessive speed,
underinflation, orexcessive loading,either
separately orincombination, cancause
excessive heatbuild-upand possible tire
failure.
The temperature gradesareA(the high est),
B, and C.Theserep resent thetire's
res istanc eto the genera tiono fheat and its
ability todissipate heatwhen testedunder
con trolled conditions onaspecified indoor
laboratory testwheel. Sustain edhigh
temper aturecancause thematerial ofthe tire
to degenerat eand reduce tirelife, and
exc essive temper aturecanlead tosudden
tire failure. Thegrade Ccorresponds toalevel
of performanc ewhich allpassenger cartires
must meet under theFederal MotorVehicle
Safety Standard No.109. Grades Band A
represent higherlevelsofperformanc eon the
laboratory testwheel thantheminimum
required bylaw. Tire
labeling Tire
labeling overview
The following markings areonthe tire in
addition tothe tire name (sales designation)
and themanufacturer 'sname: :
Uniform tireQuality Grading Standard
(Y page 371)
; DOT, TireIdent ification Number
(Y page 370)
= Maximum tireload (Ypage 365)
? Maximum tirepressure (Ypage 356)
A Manufacturer
B Tire material (Ypage 371)
C Tire size designation, load-bearing
capacity andspeed rating(Ypage 368)
D Load index (Ypage 370)
E Tire name i
Tire
data isvehicle-specif icand may
deviate fromthedata inthe example. Tir
elabeling
367Wheels and tires Z

For
furth erinfor mationonthe loadbea ring
inde x,see Loadinde x(Ypage 370).
Speed rating: speed ratingB specifies the
approved maximum speedofthe tire. G
WARN
ING Even
when permit tedbylaw, never operate a
vehicle atspeeds greater thanthemaximum
speed ratingof the tires .
Ex ceedin gthe maximum speedforwhich tires
are rated canlead tosudden tirefailure,
causing lossofvehicle controland possibly
resultin gin an acciden tand/o rserious
personal injuryandpossible death,foryou
and forother s.
Regardless ofthe speed ratingalways
obser vethe speed limits.Dr ive care fully and
adapt yourdrivin gst yle tothe traffic
con ditio ns. Sum
mer tires Index Speed
rating Q Up
to100 mph (160km /h) R Up
to106 mph (170km /h) S Up
to112 mph (180km /h) T Up
to118 mph (190km /h) H Up
to130 mph (210km /h) V Up
to149 mph (240km /h) W Up
to168 mph (270km /h) Y Up
to186 mph (300km /h) ZR..
.Y Up
to186 mph (300km /h) ZR..
.(..Y) Abov
e186 mph (300km /h) ZR Abov
e149 mph (240km /h) R
Opt ionally, tires with amaxim umspeed of
over 149mph (240km /h) may have "ZR"
in the size desc ription depen dingonthe
manuf acturer (e.g.245 /40ZR 18). The
servicespec ification scon sist ofload
bearin gindex Aand speed rating B.
R Ifthe size desc ription ofyour tireinc ludes
"ZR" andthereare noserv ice
spec ification s,ask thetiremanuf acturer in
order tofindout themaxim umspeed.
If aserv icespec ification isavailable, the
maxim umspeed islimit edacc ordin gto the
speed rating inthe serv icespec ification .
Ex ample: 245/40ZR 18 97Y.Inthis
exam ple,"97Y"isthe serv icespec ification .
The letter"Y" repr esen tsthe speed rating
and themaxim umspeed ofthe tireis
limit edto186 mph (300km /h).
R Ev ery tirethat hasamaxim umspeed above
186 mph (300km /h) must have"ZR"inthe
size desc ription and theserv ice
spec ification mustbegiven inbrac kets.
Ex ample: 275/40ZR 18 (99 Y).The speed
rat ing "(Y)" shows thatthemaxim umspeed
of the tireis above 186mph (300km /h).
Ask thetiremanuf acturer tofindout the
maxim umspeed. All-weat
hertires and winter tires Index Speed
rating Q
M+S 29 Up
to100 mph (160km /h) T
M+S 29 Up
to118 mph (190km /h) H
M+S 29 Up
to130 mph (210km /h) V
M+S 29 Up
to149 mph (240km /h) i
Not
alltires that have theM+S
ident ification offerthe drivin g
char acterist icsofwint ertires. Wint ertires
have, inadditio ntothe M+S identificat ion,
the i snow flakesymbol onthe tire
sidewal l.Tires withthisidentificat ionfulfill
the requirements ofthe Rubber
Manufacturers Association (RMA) andthe
Rubber Association ofCanada (RAC)
regarding thetire tract iononsnow and
29 Or M+Si forwinter tires. Tir
elabeling
369Wheels and tires Z