0047
Use
thee ngine' sbraking ef fect on extremely
st eep downhill gradients and on long down‐
hill stre tches. Usin
gkickdown #
Form aximum acceleration: depressthe
accelerator pedal be yond thep ressur epoint. #
Ease of fthe accelera torp eda lonce the
desired speed is reached. All-wheel drive
Note
sona ll-wheel drive All-wheel driv
eensures permanent driv efor all
fo ur wheels, and toget her wit hESP®
it impr oves
th et raction of thev ehicle.
The traction cont roloft he all-wheel driv ealso
ta ke sp lace via theb rake system. Therefore, the
brak esystem can overheat during extreme off-
ro ad use. In this case, ease of fthe accelerator
pedal or stop toallo wthe brak esystemtoc ool
down.
If ad rive nw heel spins du etoinsufficient trac‐
tion, obser vethef ollowing no tes:
R When pulling away,m akeu se of thet raction
cont rolintegrated in ESP ®
.D epress the
accelerator pedal as farasn ecessar y.
R Take your foot offt he accelera torp edal,
slowly ,whilet he vehicle is in motion.
In wintr ydriving conditions, alw aysu se winter
tires (M+S tires) and, if necessar y,sno wchains
(/ page295). Only in this wa yc an them aximum
ef fect of all-whee ldrive be achie ved.
Use DSR( Downhill Speed Regulation) when driv‐
ing downhill off-road (/ page121).
If yo uf ail toadap tyour driving styleorify ou are
inattenti ve,the all-wheel driv esystemc an neither
re duce ther isk of an accident nor override the
la ws of ph ysics. The all-wheel driv esystem can‐
no ttak er oad, weather and traf ficc onditions into
account. The all-whee ldrive system is onl yan
aid. Youa re re sponsible form aintaining asafe
dis tan ce from thev ehicle in front, forv ehicle
speed, forb raking in good time and fors taying in
lane. *
NO
TERisk of damag etothe driv etra in
and theb rake system If
yo uo perat evehicles wit hall-wheel driv eon
ao ne-axle test st and, youm aydamag ethe
driv etra in or theb rake system. #
Afunction or per form anc etests hould
only be car ried out on atwo -axle test
st and. #
Ifyo uw ish tooperat ethe vehicle on
suc hat ests tand, please consult a
qu alified specialis tworks hop in
advance. *
NO
TERisk of damag etothe transfer
case If
yo ut ow th evehicle wit haraised axle, the
trans ferc ase can getdamaged. Suc hdamage
is no tcovered byMercedes-BenzL imited
Wa rrant y. #
Nevertow th evehicle wit haraised axle. #
Onlytow thev ehicle wit hall wheels on
th eg round or full yraised. #
Notethei nstruction sontowing the
ve hicle wit hfull contact wit hthe ground
fo ra ll wheels. Engaging all-wheel drive
Conditions
fore ngaging/disengaging
Yo uc an engag eand deactivat ethe all-wheel drive
when stationar yorwhile drivin gslowl y.
When stationar y,thef ollowing mus tbeobserved:
R The engin eisrunning.
R Thes teering wheel in thes traight-ahea dposi‐
tion.
If th ea ll-wheel driv ecann otbe engaged when
st ationary: #
Vehicles with automatic transmission:
shif tthe selector le verfrom 005Cto005B from
005B to005C from 005Cto005E and bac kto005C.
Engaging and disengaging thea ll-wheel drive
can be made easier in this wa y.
Obser vethef ollowing when driving slowly:
R The engine is running.
R The vehicle is no ttrave ling fasterthan
6. 2m ph (1 0km/h).
R The vehicle is no tbeing driven around abend. Driving and parking
11 9
Information on noise or unusua
ldriving
ch aracteristics
Whil edriving, pa yattention tovibrations, noises
and unusual driving characteristics, e.g .pullin gto
one side. This ma yindicat edamag etothe wheels
or tires. If yous uspect that at ireisd efective,
re duce your speed. Stop thev ehicle as soon as
possible tocheckifw heels and tires ha vebeen
damaged or ar enolonger functioning properly.
Hidden tir edamag ecould also be causing the
unusual drivin gcharacteristics. If no signs of
dama gecan be de tected, ha vethet ires and
wheels checkedataq ualified specialis twork‐
shop. Note
sonr egular lyinspecting wheels and
tires &
WARNING Risk of accident from dam‐
aged tires
Dama gedt ires can cause tir epressur eloss.
As aresult, youc oul dlose control of your
ve hicle. #
Chec kthe tires regularly fors igns of
dama geand replace an ydamaged tires
immediatel y. Chec
kthe wheels and tires of your vehicle for
damag eregular ly,i .e. at leas tevery twow eeks,
as well as af terd riving off-road or on rough
ro ads. Damaged wheels can lead toaloss of tire
pressure.
Look out fort he following types of damage, for
ex ample:
R cutsint he tires
R punctures in thet ires
R tear sint he tires
R bulges on tires
R deformation or se vere cor rosion on wheels &
WARNING Risk ofhydroplaning because
tir et read is tool ow
Insuf ficient tir etread will result in reduced
tir et raction .The tir etread will no longer be
able todissipat ewater.
This increase sthe risk of hydroplaning on wet
ro ad sur faces, pa rticularly when tra veling at
an inappropriat espeed. If
th et irep ressur eist oo high or tool ow ,tires
ma yexhibit dif fere nt le vels of wear at dif fer‐
ent locations on thet iret read. #
Regular lych eckt he tir etread dep thand
th ec ondition of thet iret read across
th ee ntir ew idthofa ll tires.
Minimum tread dep thforu se:
R In summer: 00CEin (3 mm)
R In winter: 00CFin (4 mm) #
Fors afet yr easons, ha vethet ires
re placed befor ethe legally prescribed
limit fort he minimum tir etread dep this
re ached. Conduct
thef ollowing checks regular lyon all
wheels, at leas tonce amonthorasr equired, e.g.
befor ealong journe yorwhen driving off- road:
R checkt he tir epressur e(/ pag e296)
R checkt he valvec aps
Va lves mus tbeprotected from moistur eand
dir tw ithv alvec apss pecifically appr oved by
Mercedes-Benzf oryour vehicle.
R visually inspect thet read dep thand thet ire
tread across thew hole tir ewidth
Fo ru se in summer ,the minimum tread dep th
is 00CE in (3 mm) and foru se in winter 00CFin
(4 mm). Markings
1showinw hichp laces theb ar indica‐
to rs (ar row )are integ ratedi ntot he tir etread.
The yarevisible as soon as thet read dep this
appr oximately 00CDin (1.6 mm). Information on driving wit
hsummer tires
At temp eratures belo w50°F(10°C) summer
tires lose elasticit yand therefor etraction and
braking po wer.Chan gethet ires on your vehicle
to M+S tires. Using summer tires at very cold
te mp eratures could cause tear stof orm, thereby
damaging thet ires permanentl y.Mercedes-Benz 294
Wheels and tires
canno
tacce ptresponsibility fort his type of dam‐
age.
Alw ayso bser vethem aximum permissible speed
specified fort he summer tires youh ave installed
(/ page307).
Onc eyou ha veinstalled thes ummer tires:
R Chec kthe tir epressur e(/pag e296)
R Restar tt he tir epressur emonitor
(/ page302) Information on M+S tires
Use winter tires or all-season tires at temp era‐
tures belo w50°F(10 °C). Bo thtypes of tir eare
identi fied bytheM +S marking.
Onl ywinter tires bearing the004D snowflake
symbol in addition totheM +S marking pr ovide
th eb estp ossible grip in wintr yroad conditions.
Onl ythese tires will allo wdriving saf etys ystems
suc hasA BS and ESP ®
to function optimal lyin
winter .These tires ha vebeen de veloped specifi‐
call yfor driving in sno w.
Use M+S tires of thes ame mak eand tread on all
wheels tomaintain saf ehandling characteristics.
Alw ayso bser vethem aximum permissible speed
specified fort he M+S tires youh ave installed
(/ page307).
If yo ui nstall M+S tires that ha vealowe rmaxi‐
mum permissible speed than them aximum
design speed of thev ehicle, af fixana ppropria te
wa rning sign in thed rive r's field of vision. Yo u
can obtai nthis at aqualified specialis tworks hop.
Once youh avei nstalled thew inter tires, take the
fo llowing measures:
R Chec kthe tir epressur e(/pag e296)
R Restar tt he tir epressur emonitor
(/ page302) Note
sons nowc hains &
WARNING Risk of accident du etoincor‐
re ct ins tallation of sno wchains
Ve hicles with rear-wheel drive: ifyo uh ave
ins talled sno wchains tothef ront wheels,
th ey ma ydraga gains tthe vehicle body or
ch assis components.
This could cause damag etothevehicle or the
tires. #
Neverins tall sno wchains on thef ront
wheels. #
Onlyins tall sno wchains on ther ear
wheelsinp airs. #
Vehicles with twin tires: installthe
sno wchains totheo uter wheels. &
WARNING Risk of accident du eto
unsuitable sn ow chains
Ve hicles wit hall-wheel driv edonothave suf‐
fi cient clea rance on thef ront axle forc om‐
mercial lyavailable sn ow chains.
When youi nstall commerciall yavailable sn ow
ch ains ,the sno wchains ma ycom eloose and
damag echassi scomponent sorbrake hoses. #
Only ins tall sno wchains appr ovedby
Mercedes-Benzf orthese tires. Fo
rs afet yr easons, Mercedes-Benz recommends
th at youo nlyu se sn owchains that ha vebeen
ch eckeda nd appr oved.Youc an obtain informa‐
tio na bout sn ow chains from an yqualified spe‐
cialis tworks hop.
* NO
TEDama getothew heel trim from
mounted sno wchains If sno
wchains are mounted tosteel wheels,
th ew heel trims can be damaged. #
Remo vethew heel trims of steel wheels
befor emounting sno wchains. Obser
vethef ollowing no tesw hen using snow
ch ains:
R Snow ch ains ar eonlyp ermissible forc ertain
wheel/tir ecombinations .You can obtain
information on them at aqualified specialist
wo rkshop.
R Fors afet yr easons, onl yuse sn owchains that
ha ve been specifically appr ovedfor your vehi‐
cle byMercedes-Benz, or sno wchains with
th es ame quality standard.
R The sn owchains mus tberetightene dafter
driving appr oximatel y0.6 miles (1 km). This is
th eo nlyw aytoensur ethe sno wchains are
optimall yseated wit hclearanc etoadjacent
components.
R Vehicles with all-wheel drive: install snow
ch ains on thew heels on ther ear axle. On
ve hicles wit htwin tires, ins tallth es now
ch ains on theo uter wheels. Obser vethem an‐
ufacturer's ins tallation instructions. Wheels and tires
295
re
placement or alternat etires or wheels on
th ev ehicle that pr event theT PMS from func‐
tionin gproper ly.
Alw aysc hec kthe TPMS malfunction warning
lam pafter replacing one or mor etires or
wheels on your vehicle toensur ethat the
re placement or alternat etires and wheels
allo wthe TPMS tocontinu etofunction prop‐
er ly. The sy
stem checks thet irep ressur eand thet em‐
peratur eofthe tires ins talled tothev ehicle by
means of atirep ressur esensor.
Ne wt irep ressur esensors, e.g. in winter tires,
ar ea utomatically taught-in thef irst time they are
driven.
The tir epressur eand thet iret emperatur eappear
in them ultifunction displa y(/pag e168).
If th er eisas ubstantia llos soft irep ressure, a
wa rning is issued:
R via displa ymessages (/ page352)
R viathe 0077 warning lam pinthe instrument
clus ter
It is thed rive r's responsibility tosetthe tir epres‐
sur etot herecommended cold tir epressur esuit‐
able fort he operating situation. Se tthe tir epres‐
sur efor cold tires using atirep ressu regauge.
No tethat thec orrect tir epressure fort he cur rent
ope rating situatio nmustfirst be taught-in tothe
tir ep ressur emonitoring sy stem.
In mos tcases, thet irep ressur emonitoring sys‐
te mw illa utomatically updat ethe ne wreference
va lues af tery ou ha vechanged thet irep ressure.
Yo uc an,h owe ver,also updat ethe refere nce val‐
ues byrestartin gthe tir epressur emonitoring
sy stem manually (/ page302).
Sy stem limitations
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
R ifth et irep ressur eiss etincor rectly
R ifth er eisas udden pressur eloss caused by a
fo re ign object penetrating thet ire, fore xam‐
ple
R ifth er eisam alfunction caused byano ther
ra dio signal source
Mak esuretoo bservethef ollowing fur ther rela‐
te ds ubject:
R Notesont irep ressur e(/pag e296) Checking
thet irep ressur ewitht he tir epres‐
sur em onitoring sy stem
Requ irements:
R The ignition is switched on
On-boar dcomputer:
4 Service 5
Tires
One of thef ollowing displa ysappears:
R The cur rent tir epressur eand tir etempera‐
tur eoft he individual wheels Instrument Displa
ywithc olor display
R The cur rent tir epressur efor eac hwheel Instrument Displa
ywithb lack and whit edisplay
R Tire pressure will be displaye dafter driving a
few minutes :the teach-in process of thes ys‐
te misn otyetc ompl ete. The tir epressur eare
already being monitored. #
Compar ethe tir epressur ewitht he recom‐
mende dtirep ressur efor thec urrent ope rat‐
ing condition .Obser vethen otes on tir etem‐
peratur e(/pag e296).
% The
values displa yedint he multifunction dis‐
pla ym aydeviat efromt hose of thet irep res‐
sur egaug east heyr efer tosea le vel.At high
altitudes, thet irep ressur evalues indicated
by ap ressur egaug earehigher than those
shown bytheo n-boar dcomputer .Inthis
case, do no treduce thet irep ressure. Wheels and tires
301
Do no
toverload thet ires by ex ceeding them axi‐
mum permissible load.
See also:
R Maximum permissible load on theT irea nd
Loading In form atio nplacar d(/pag e302)
R Maximum tir eload (/ page306)
R Load ind ex
Speed rating 7
7:
Specifie sthe appr oved maximum speed of the
tire.
% An electroni
cspeed limiter pr events your
ve hicle from exceeding aspeed of 130m ph
(2 10 km/h).
Ensu rethat your tires ha vether equired speed
ra ting .You can obtain information on the
re qu ired speed rating at an au thorized Mercedes-
Benz Center.
Summer tires Inde
xS peedrating
LU pto75mph (120 km/h)
MU pto81mph (130 km/h)
NU pto87mph (140 km/h)
PU pto93mph (150 km/h)
QU pto100mph(160k m/h)
RU pto106mph(170k m/h) Summer
,all-season and winter tires Inde
xS peedrating
LM +S1
Upto75 mph(120k m/h)
MM +S1
Upto81 mp h(130k m/h)
NM +S1
Upto87 mph(140k m/h)
PM +S1
Upto93 mph(150k m/h)
QM +S1
Upto100m ph (160 km/h)
RM +S1
Upto118m ph (170 km/h) 1
:or" M+S 004D"f or winter tires
Wi nter tires ar emarke dw itht he 004D snowflake
symbol and fulfill ther equirements of theR ubber
Manufacturer sAssociation (RMA) and theR ubber
Associatio nofCanada (RAC) rega rding thet ire
traction on sno w. Load index
8 8:
R "Light load": light load tires
R "C": commercial tires Information on definitions (tires and load‐
ing)
Ti re stru ctu reand characteristics: describes
th en umber of la yers or then umber of rubber-
coated la yers inthet iret read and thet irew all.
These ar emade of steel, nylon, pol yester and
ot her materials.
Bar: metric unit fort irep ressu re.
14 .5038 pounds per squar einc h( psi) and
10 0k ilopascals (kPa) ar ethe equivalent of 1bar.
DO T(Department of Transportation): DOT
mar kedt ires fulfill ther equirements of the
U. S. Depa rtment of Transpor tatio n.
Av erag eweight of vehicl eoccupants: the
number of occupants forw hichthe vehicle is
designed multiplied by150lbs (68 kg).
Un ifor mT ireQ uality Grading Standards: auni‐
fo rm standar dtog rade theq uality of tires with
re ga rdstot read quality ,tiret raction and temp er‐
atur echaracteristics. The quality grading assess‐
men tism adebythem anufacturer in accordance
wit htests pecifications of theU .S. go vernment.
The quality grade of atireisi mprinted on the
side wall of thet ire.
Re commended tir epressu re:ther ecommen‐
ded tir epressur eist he pressur especified fort he
tires ins talled on thev ehicle at thef actor y.
The Tire and Loadin gInforma tionp lacar dcon‐
ta ins ther ecommended tir epressures forc old
tires, them aximum permissible load and the
maximu mpermissible vehicle speed.
The tir epressur etable con tains ther ecommen‐
ded tir epressu resf or cold tires under various
operating conditions, i.e. load and/or speed of
th ev ehicle.
Increased vehicl eweight due tooptional
equipment: thec ombined weight of all standard
and optional equipmen tavailable fort he vehicle,
re ga rdless of whe ther it is actually ins talled on
th ev ehicle or not.
Rim: thep artoft he wheel on whic hthe tir eis
ins talled.
GA WR (Gross AxleW eightRating): GAWR is the
gross axle weight rating .The actual load on an
axl em ustn eve rexceed theG ross Axle Weight 308
Wheels and tires
Befor
epurch asing and using non-appr oved
accesso ries, visit aqualified specialis tworks hop
and inquir eabout:
R Suitability
R Legal stipulations
R Factor yrecommendations
Obser vethef ollowing points when selecting,
ins talling and replacing tires:
R Use onl ytires and wheels of thes ame type,
design (winter tires, all-season tire) and
make.
R Onlyins tall wheels of thes ame size and tread
design on one axle (lef tand right).
It is onl ypermissible toins tallad iffe re nt
wheel size tothis in thee vent of aflat tir ein
order todriv etot he specialis tworks hop.
R Onlyins tall tires of thec orrect size ont othe
wheels.
R Ve
hicles with atirep ressur emonitoring
sy stem: all ins talled wheels mus tbeequip‐
ped wit hfunctioning sensor sfor thet irep res‐
sur em onitoring sy stem.
R Attemp eratures belo w50°F(10°C), use
winter tires or all-season tir emarke dM +Sfor
all wheels.
Wi nter tires bearing the004D snowflak esym‐
bol in addition totheM +S marking pr ovide
th eb estp ossible grip in wintr yroad condi‐
tions.
R Only use tires wit hthe same tread.
R Obser vethem aximum permissible speed for
th ei nstalled tires.
If th is is belo wthe vehicle's maximum speed,
th is mus tbeindicated in an appropriat elabel
in thed rive r's field of vision.
R Break in ne wtires at moderat espeeds fort he
fi rs t60m iles (100 km).
R Replace thet ires af ters ixyearsatt he latest,
re ga rdless of wear.
Fo rm orei nformation on wheels and tires, con‐
ta ct aq ualified specialis tworks hop.
% Ve
hicles with twin tires:
Fo rv ehicles wit htwin tires wit haGVW of
11 ,030 lbs or 12,125 lbs, onl yuse tires with
th ed imension LT215/85 R1 6which have
been appr ovedfor this vehicle bythem anu‐
fa cturer .Itisn otpermissibl etouse tires with
dif fere nt dimensions; doing so ma ylea dtoa ge
neral ope rating pe rmit being rende red
in va lid.
% Ve
hicles with single tires:
Fo rv ehicles wit hsingle tires wit haGVW less
th an or equal to9480 lbs, onl yuse tires with
th ed imension LT245/7 5R16whi chhave
been appr ovedfor this vehicle bythem anu‐
fa cturer .Itisn otpermissibl etouse tires with
dif fere nt dimensions; doing so ma ylea dtoa
ge neral ope rating pe rmit being rende red
in va lid.
% Ve
hicles with Super Single tires:
Fo rv ehicles wit hsingle tires wit haGVW of
11 ,030 lbs, onl yuse tires wit hthe dimen‐
sions 225/7 5R16C( FA)and 285/65 R16C
(RA) whic hhaveb een appr ovedfor this vehi‐
cle bythem anufacturer .Itisnotpermissible
to use tires wit hdiffe re nt dimensions; doing
so ma ylea dtoa general ope rating pe rmit
being rende redi nva lid.
Be sur etoalso obse rvet he following fur ther rela‐
te ds ubjects:
R Notesont irep ressur e(/pag e296)
R Tire and Loadin gInforma tionp lacard
(/ page302)
R Tire size designation, load-beari ng capacity,
speed rating and load ind ex (/pag e307)
R Tire pressur etable
R Notesont he emergency spar ewheel
(/ page317 ) Note
sonr otating wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent whee lsizes
Inter changing thef ront and rear wheels if the
wheels or tires ha vediffere nt dimensions may
se verely impair thed riving characteristics.
The wheel brakes or wheel suspension com‐
ponent smayalso be damaged. #
Rotate front and rear wheels onl yifthe
wheels and tires ar eofthe same dimen‐
sions. On
vehicles that ha vethes ame size front and
re ar wheels ,rotatet he wheels according tothe
inter vals in thet irem anufacturer's warrant ybook
in your vehicle documents. If this is no tavailable,
ro tate thet ires every3,000 (5,000) to
6,000 mile s(10 ,000 km) ,depending on the Wheels and tires
311