change wheel MERCEDES-BENZ METRIS 2021 MY21 Operator's Manual

Information on
changing address or owner In
thee vent of achang eofa ddress, please send
us the" Notification of Address Change" in the
Service and Warrant yInforma tionb ookle torsim‐
pl yc all theC ustomer Assis tance Center (USA) at
th eh otline number 1-8 77-762-826 7orCustomer
Service (Canada) at 1-800-387-0 100. This way,if
necessar y,we can reac hy ou in atimel yfashion.
If yo us ellyour Mercedes, please lea vethee ntire
literatur einthevehicle so that it is available to
th en exto wne r.If yo uh ave purchased aused
ve hicle, please send us the" Notice of Pur chase
of Used Car" in theS ervice and Warrant yInfor‐
mation bookle torcalltheC ustomer Assis tance
Center (USA) at theh otline number
1-8 77-762-826 7orCustomer Service (Canada) at
1-800-387-0 100. Po
ssible danger due tosubstances haza rdous
to health In compliance wit
hProposition 65 ("P rop65"), the
fo llowing de tach able label has been added to
eac hvehicle sold in California: Operating saf
ety &
WARNING Risk of accident du etomal‐
functions or sy stem failures
To avo id malfunctions or sy stem failures: #
Alwaysh ave thep rescribed service and
maintenanc eworkasw ell anyrequired
re pair scarried out at aqualified special‐
is tw orks hop. &
WARNING Risk of accident or inju rydue
to incor rect modi fications on electronic
component pa rts
Modification of electronic components,t heir
softwar eorwiring could impair their function and/or
thef unction of other networ kedc om‐
ponen tparts or saf ety-re leva nt sy stems.
This can endanger theo perating saf etyoft he
ve hicle. #
Nevertamper wit hthe wiring and elec‐
tronic component parts or their soft‐
wa re. #
Yous houl dhave allworkon electrical
and electronic component scarried out
at aq ualified specialis tworks hop. Obser
vethe" Vehicle electronics" section in
"Technical data". &
WARNING Risk offire due toflammable
materials on ho tparts of thee xhau stsys‐
tem
Flammable materia lsuc hasl eaves, grass or
twigs ma yignit eift heyc ome int ocontact
wi th hotp arts of thee xhau stsystem. #
When driving on unpa vedr oads or off-
ro ad, regular lych eckt he vehicle under‐
side. #
Remo vetrappe dplants or other flam‐
mable material, in particular. #
Ifth er eisd amage, consult aqualified
specialis tworks hop immediately. *
NO
TEDama getothev ehicle due todriv‐
ing toof asta nd due toimpact stothe
ve hicle underbody or suspension compo‐
nents In
thef ollowing situations, in particular ,there
is ar isk of damag etothevehicle:
R The vehicle becomes grounded, e.g. on a
high curb or an unpa vedr oad
R The vehicle is driven toof asto veran
obs tacle, e.g. acurb ,speed bu mpor pot‐
hole
R Aheavy object strike st he underbody or
suspension components
In situations suc hasthese, damag etothe
body ,underbody ,suspension components,
wheels or tires ma ynotbe visible. Compo‐
nents damaged in this wa yc an unexpectedly
fa il or ,int he case of an accident, ma ynolon‐
ge ra bsorb ther esulting forc easi ntended.
If th eu nderbody paneling is damaged, flam‐
mable materials suc hasleaves, grass or 16
Generaln otes

When
replacing abulb, youc oul db urny our‐
self on these componen tparts. #
Allowthe component parts tocool
down befor ereplacing theb ulbs. When
youa re re placing thel ight bulb, obser ve
th ef ollowing:
R Do no tuse an ylight bulb that has been drop‐
ped or has scratches on its glass tube .Other‐
wise, thel ight bulb ma yexplode.
R Theb ulb ma yexplod eifitish otor if you
to uch, drop or sc ratchi t.
R Stains on theg lass tube will reduce the
service lif eofthe light bulb. Do no ttouc hthe
gl ass tube wit hyour bar ehands. If necessar y,
clea nthe glass tube wit halcohol or spirits
while it is col dstate and wipe it down wit ha
lint-f reec loth.
R Protect light bulbs from humidity and do not
bring them int ocontact wit hliquids.
R Befor echanging theb ulbs, switc hoffthe
ve hicle's lighting sy stem. This will pr event a
sho rtcircuit.
R Use bulbs only in enclosed la mpsthat ha ve
been designed fort hem.
R Use onl yspar ebulbs of thes ame type and
wit hthe cor rect voltage.
Alw ayse nsur ethe bulbs ar efirml ysecured.
Ha ve thef ollowing light bulbs changed at aquali‐
fi ed specialis tworks hop only:
R Bulbs in thel icense plat elamp
R Front fogl amp
R Side mar kerlamps
Bulb sand lamps ar emajor elements in vehicle
saf ety. Therefore, ensur ethat they area lways
wo rking. Ha vetheh eadlam psetting checkedr eg‐
ular ly.
If th en ew light bulb also does no tlight up, con‐
sult aqualified specialis tworks hop. Re
placing fron tlight bulbs (vehicles with hal‐
ogen headlamps) Overvie
woffront light sou rcet ypes 1
Side additional tur nsignal lamp: WY 5W
2 Turn signal light :PY21W
3 Lowb eam: H7 55 W
4 Front fogl amp: H1 155W
5 High beam/s tanding/parking la mps/
daytime running la mps: H1 555W /15W
6 Side mar kerligh t:LED
Re placing light sou rces in theh eadlamp
Re quirements:
R The lightin gsystemiss witched off.
R The appropriat efront wheel is turned
in wa rds.
R Lowb eam: your equir eaH755Wl ight bulb.
R Turn signal light: your equir eaPY21Wl ight
bulb.
R High beam/standing/parking lamps/
daytim
erunnin glamps: your equir ea
H1 555W /15Wl ight bulb.
Installing/removing thec ove rint he front
whee larch Light and vision
81

shop. This also applies
tocollisions at slow
speeds whe rether eisnov isible damag etothe
front end of thev ehicle. Setting
Activ eB rake Assi st On-boar
dcomputer:
4 DriveAssist 5
Active Brake Assist #
Select thed esired setting fort he warning/
re action tim eand press the0076 button.
The setting is retained when thev ehicle is
next star ted.
Deactivating Activ eB rake Assi st
% It is
recommended that ActiveB rake Assi stis
alw aysl efta ctivated. #
Select Offand press the0076 button.
The dis tance warning function and thea uton‐
omous braking function ar edeactivated. Also,
th es tatus appear sintheStatus overvie wof
the DriveAssist menu.
The next time thev ehicle is star ted, Ac tiveB rake
Assi stis automaticall yactivated wit hthe Medium
setting.
When ActiveB rake Assi stis activated, them ulti‐
function displa yshows the 00C7symbol.
At speeds up toappr oximately 20 mph
(30 km/h), them ultifunction displa yinvehicles
wit hA ctiv eParking Assis tfirst sho wsthe 005Dsta‐
tus indicator .Onlyf romas peed of appr oximately
20 mph(30 km/h) does them ultifunction display
sho wthe 005D symbol ins tead of the00C7 status
indicator. Cruise control
Fu
nction of cruise control
Cruise cont rola ccelerates and brakes thev ehicle
automaticall yinorder tomaintain apreviously
st ored speed.
If yo ua ccelerat etoovertake, fore xamp le,the
st ored speed is no tdele ted. If your emo veyour
fo ot from thea ccelerator pedal af tero vertaking,
cruise control will resume speed regulation back
to thes tore ds peed.
Yo uo perat ecruise control usin gthe cruise con‐
trol le ver.Yo uc an stor ea nyspeed abo ve20 mph
(30 km/h).
Obser vethen otes on driving sy stems and your
re sponsibility ,otherwise youc anno trecognize
danger s(/ page 109). Sy
stem limits
Cruise control ma ybeunable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed if theu phill gradient evens out
and thev ehicle's speed does no tfall below
20 mph(30 km/h).
On long and steep downhill gradients, yous hould
ch ang edowntoa lowe rgear in good time. Take
particular no teofthis when driving aladen vehi‐
cle. By doing so, youw ill mak euse of the
engine' sbraking ef fect. Thi swillt ak es ome of the
st ra in of fthe brak esystem and pr eventthe
brakes from overheating and wearing tooq uickl y.
If yo uc hang ewheel siz eonyourvehicle, checkit
is assigned tothec orrect wheel size catego ry
( / pag e218). If thec ategor yischanged without
re coding thec ont rolu nit sint hevehicle, thef unc‐
tionin gofcruise cont rolm aybe impaired.
Do no tuse cruise control in thef ollowing situa‐
tions:
R in traf fics ituations whe refrequent speed
ch anges ar erequired, e.g. in heavy traf ficor
on winding roads
R off-road or on con stru ction sites
R on slippe ryor slic kroads, as thed rive wheels
can lose traction when accelerating and the
ve hicle can then skid
R ifth er eisp oor visibility
Operating cruise control
Requ irements
R Cruise control is selected.
R The parkin gbrake has been released.
R ESP ®
is activated, but ma ynotinter vene.
R The driving speed is at leas t20m ph
(30 km/h).
R The brak epedal is no tdepressed. Driving and parking
11 5

Note
sont he instrument clu ster an don-
board co mputer &
WARNING Risk of accident du etoan
instrumen tclus term alfunction
If th ei nstrument clus terh as failed or mal‐
functioned, youm aynotn oticer estrictions to
saf ety-re leva nt sy stem functions.
The operating saf etyofy ourvehicle ma ybe
impaired. #
Driv eonc arefull y. #
Have thev ehicle checkedi mmediately
at aq ualified specialis tworks hop. If
yo ua reuncer tain rega rding theo perational
saf etyofy ourvehicle, par kthe vehicle safel yas
soon as possible. Infor maqualified specialist
wo rkshop.
The on-boar dcomputer will sho wonly messages
and warnings from cer tain sy stems on thed is‐
pla y.Yo us houl dtherefor emakes urey our vehicle
is operating safely at all times.
Yo uc an find an overvie woft he indicator and
wa rning lamps on thei nstrument clus terin" At a
gl ance". Overvie
wofthe instrument clu ster Instrument clu
ster (vehicles without steering
wheel buttons)
1 Speedome ter
2 Multifunction display
3 Tach ome ter
4 Setthe instrument lighting, chang evalues or
settings ,scroll thro ugh lists
5 Select sasubmenu or resets values
6 Selects them enu or display Instrument clus
ter( ve hicles wit hsteering wheel
buttons)
1 Speedome ter
2 Multifunction display
3 Tach ome ter
4 Coolan ttemperatur edisplay
5 Fuel le vel
Fu elfiller flap location 007F:the fuel filler
cap is on thel eft
6 Adjusts thei nstrument lighting
Speedome ter
Ve hicles wit hsteering wheel buttons:
In vehicles wit hActiv eDista nce Assi st
DISTRONIC, ther ea reilluminated segment son
th es peedome terd ial.
These segments sho wyou what speed rang eis
av ailable:
R Variable limiter activated (/ page115 )
The segments light up from thes tart of the
scale tothes elected limit speed.
R ActiveD ista nce Assi stDISTRONI Cswitched
on (/ page 116)
On eort wosegments light up in thes aved
speed range.
R ActiveD ista nce Assi stDISTRONI Cdetects a
ve hicle in front.
The segments light up from thes peed of the
ve hicle in front up tothes ave dspeed.
Yo uc an sho wthe speed as adigital speedome ter
on thed ispla yasw ell.
If yo uc hang eyour vehicle's wheel size, checki ts
assignmen ttothe wheel size group
(/ page218). If thea ssignmen tchanges with‐
out recoding thec ont rolu nit sint hevehicle, the
speedome terw illn ot displa ythe speed accu‐
ra tely.T he cur rent vehicle speed ma ythen be
higher than thes peed shown bythes peedome‐
te r.Driving and driving sa fety sy stems ma ythen
be operationall yimp aired or ma ydetect amal‐
function and switc hthemselves off. 13 6
Instrument clus tera nd on-boar dcomputer

In some countries, an audible signal wills
ound
and/or amessag ewilla ppear on thed isplay
when thev ehicle reaches them aximum speed
permitted bylaw, e.g. at 75mph(120k m/h).
Ta ch ome ter
* NO
TEEngine damag eduetomaximum
engine speed being exceeded If
th em aximum permissible engine speed is
exc eeded, thee ngine ma ybedamaged. #
Avoid driving in ther ed speed range
(danger zone). Whe
nthe redm arkisr eached, thef uel supply
will be inter rupte dtop rotect thee ngine.
Outsid etem peratu re display
Yo us houl dpayspecial attention toroad condi‐
tions when temp eratures ar earound freezing
point.
Bear in mind that theo utside temp eratur edisplay
indicates them easured air temp eratur eand not
th er oad sur face temp erature.
The outside temp eratur eisdisplayedont he mul‐
tifunction displa y(/pag e140).
Changes in theo utside temp eratur ewill be dis‐
pla yeda fter as hor tdela y.
Coolant temperatur edisplay &
WARNING Risk of bu rnsw hen opening
th eh ood
If yo uo pen theh ood when thee ngine has
ov erheated or when ther eisaf ireint he
engine compartment, thef ollowing situations
ma yoccur:
R Youc oul dc om eintoc ontact wi thhot
ga ses.
R Youc oul dc om eintoc ontact wi thother
hot, escaping operating fluids. #
Befor eopening theh ood, allo wthe
ove rheated engine tocool down. #
Inthee vent of afireint he engine com‐
partment, keep theh ood closed and call
th ef ires ervice. In
vehicles without steering wheel buttons, you
can sho wthe coolant temp eratur eonthe display
(/ page142). In
vehicles wit hsteering wheel buttons, ther eis
an analog coolant temp eratur edispla yont he
instrument clus ter's tach ome ter.
During norma ldriving and if thec oolant le velis
cor rect, thed ispla yisp ermitted torise tothef ol‐
lowing temp erature:
R Vehicles wit hfront-wheel drive: up to230°F
(1 10 °C)
R Vehicles wit hrear-wheel drive: up to248°F
(120°C) Overvie
wand operation of theo n-boa rd
compu ter( ve hicles without steering-wheel
but tons) &
WARNING Risk of distraction from infor‐
mation sy stems and communications
equipment
If yo uo perat einformation and communica‐
tio ne quipment integrated in thev ehicle when
driving, youw ill be distracted from thet raffic
situation. This could also cause youtol ose
control of thev ehicle. #
Onlyoperat ethis equipment when the
traf fics ituation permits. #
Ifyo uc anno tbes ureoft his,stop the
ve hicle whils tpaying attention toroad
and traf ficc onditions and ope rate the
equipment wit hthe vehicle stationar y. Yo
um usto bse rvet he legal requirements fort he
countr yinwhich youa recur rentl yd riving when
ope rating theo n-boar dcomputer. &
WARNING Risk of accident and injury
du ring inter vention bythes teering wheel
If yo ur eac hthrough thes teering wheel to
operat ethe adjustment knobs while driving,
yo uc oul dlose control of thev ehicle. #
Use thea djustmen tknobs onl ywhen
th ev ehicle is at astandstill. #
Do no treac hthrough thes teering wheel
while driving. Instrument clus
tera nd on-boar dcomputer 137

*
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 rear-wheel drive: onlyins tall
sno wchains in pair sand onl yonthe rear
wheels .Obse rvet he manufacturer's ins talla‐
tion instructions.
R Vehicles with front-wheel drive: only install
sno wchains in pair sand onl yonthe front
wheels. Obser vethem anufacturer's ins talla‐
tion instructions.
R Use sno wchains only when ther oad sur face
is comple tely sno w-covered. Re mo vethe
sno wchains as soon as possiblew henyou
come toaroad that is no tsnow-covered.
R Local regulations ma yrestrict theu se of
sno wchains. Obser vethea pplicable regula‐
tions befor einstalling sno wchains.
R If sno wchains ar einstalled, them aximum
permissible speed is 30 mph(50 km/h ).
% Youc an deactivat eESP®
to pull away
( / pag e111,112 ). This all owsthew heels to
spin, achieving an increased driving forc e. Ti
re pressure Note
sont irep ressure &
WARNING Risk of accident du etoinsuf‐
fi cient or excessi vetirep ressure
Ti re sw ithe ither tool ow ortooh igh apres‐
sur epresent thef ollowing hazards:
R thet ires could bur st
R thet ires could wearexcessi vely and/or
un eve nly
R thed riving characteristic saswell as
st eering and braking characteristic smay
be se verely impaired #
Obse rvet he recommended tir epres‐
sures and checkt he tir epressur eofa ll
tires including thes par ew heel:
R monthly
R if altering thel oad on thev ehicle
R prior tolong journe ys
R ifth eo perating conditions change, for
ex ample when drivin goff-road #
Adjus tthe tir epressur ewhereneces‐
sar y. Driving wi
thtirep ressur ethat is tooh igh or too
lo wc an:
R Shor tent he service lif eofthe tires
R Cause increased tir edamage
R Adverselya ffect handling characteristic sand
th us drivin gsafet y, e.g. due to hydroplaning &
WARNING Risk of accident du etotoo
lo wat irep ressure
Ti re sw ithp ressur ethat is tool ow can over‐
heat and bur stas ac onsequence.
In addition ,the ya lso suf ferf romi rregular
we ar,w hic hc an significantl yimp air theb rak‐
ing properties and theh andling characteris‐
tics. #
Avoid excessively lo wtirep ressure. Ti
re pressur ewhichist oo lo wcan cause:
R Tire malfunctioning as aresult of overheating
R Impaired handling characteristics
R Irre gular wear
R Increased fuel consum ption 206
Wheels and tires

#
Avoid obs tacles or driv eoverthem with
particular care. #
Reduce speed when driving overcurbs,
speed bumps, manhol ecoversa nd pot‐
holes. #
Avoid especially high curbs. *
NO
TEDama getoelectronic component
parts thro ugh theu se of tire-ins talling
to ols Ve
hicles with atirep ressur emonitoring
sy stem: ther ea reelectronic component
parts in thew heel. Tire -ins talling tools should
no tbea pplied in thea reaoft hevalve.
Otherwise, thee lectronic componen tparts
could be damaged. #
Alwaysh ave tires changed at aqualified
specialis tworks hop. Ac
cessories that ar enotappr ovedfor your vehi‐
cle byMercedes-Benz, or ar enotbeing used cor‐
re ctly ,can impair ope rating sa fety.
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 tires) 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 win‐
te rt ires or all-season tires wit hthe M+S
marking on 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 per‐
missible speed, this 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.
Be sur etoalso obse rvet he following fur ther rela‐
te ds ubjects:
R Notesont irep ressur e(/pag e206)
R Tire and Loadin gInforma tionp lacard
R Tire size designation, load-beari ng capacity,
speed rating and load ind ex (/pag e213 )
R Tire pressur etable
R Notesont he emer gency spa rewheel
(/ page222) Note
sonc hanging 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
degree of wear.E nsuret hat thed irection of rota‐
tio nism aintained. Wheel
sand tires 217

It is imperativ
etoobservethei nstruction sand
saf etyn otes on "Changing awheel" when doing
so. Size categories of wheels
The de
term ined vehicle speed is displa yedint he
instrument clus tera nd is impor tant forc ontrol‐
ling thed riving saf etys ystems and driving sys‐
te ms. The displa yaccuracy of thes peedome ter
and theo dome terisl egally prescribed .Determin‐
ing thes peed is dependent on thet ires ize or the
ro lling circumferenc eofthe tires. The rimd iame‐
te risa lway ss pecified in inches.
Fo rthis reason ,the vehicle contro lunit sc an be
coded fort he following wheel size categories: Wheel size categor
y1
19 5/65 R16C
205/65 R16C
225/60 R16C
225/55 R17C
225/55 R17XL
24 5/45 R18XL Wheel size categor
y2
225/55R17XL
235/55R17XL
24 5/55 R17XL
24 5/45 R18XL
24 5/50 R18XL
24 5/45 R19XL %
Mercedes-Benz
recommends that yous tay
within awheel siz ecategor ywhen changing a
tire. In this wa y,yo ua void recoding thec on‐
trol units. Due
tothel egall yprescribed accuracy of the
speedome tera nd odome terd ispla ys,the follow‐
ing tires ar enotpermit tedf or taxis and hir ecars:
R Wheel size catego ry 1
- 195/65 R16C
R Whee lsize categor y2
- 225/55 R17XL
- 245/45 R18XL
If th ew heel size categor ychanges, youm ust
ha ve your vehicle's contro lunit srecoded at a
qu alified specialis tworks hop. Information on
thed irection of thet ires' rota‐
tion Ti
re sw ithas pecified direction of rotatio nh ave
additional benefits ,e.g.ift hereisar isk ofhydro‐
planing. Youw ill only gain these benefits if the
cor rect directio nofrotation is obser ved.
An ar rowonthes ide wall of thet irei ndicates its
cor rect directio nofrotation.
Yo um ayalso ins tallas par ew heel agains tthe
direction of rotation. Obser vethet ime restriction
on use as well as thes peed limitation specified
on thes par ew heel. Information on
storing wheels Obser
vethef ollowing when storing wheels:
R Wheels that ha vebeen remo veds hould be
st ored in acool, dr yand, if possible, dark
place.
R Protect thet ires from oil, grease and fuel. Preparing
thev ehicle foraw heelchange Requ
irements:
R The tire-chang etool kit is available.
R The vehicle is no tonaslope.
R The vehicle is on solid, non-slipper yand le vel
ground. #
Appl ythe parking brake. #
Movethef ront wheels tothes traight-ahead
position. #
Vehicles with automatic transmission:
shif tthe transmission toposition 005D. #
Switc hoffthee ngine. #
Mak esuret hat thee ngine cann otbe star ted. 218
Wheels and tires

#
On le velter rain: place choc ks orother suita‐
ble objects under thef ront and rear of the
wheel that is diagonall yopposit ethe wheel to
be changed. #
On sligh tinclines: placechoc ks orother
suitable objects under thew heels on the
front and rear axle sopposit ethe wheel tobe
ch anged. #
If included in thev ehicle equipment, take the
tire-chang etool kit out of thev ehicle tool kit
(/ page202). #
If included in thev ehicle equipment, remo ve
th es par ew heel from thes par ew heel brac ket
( / pag e223). #
If necessar y,remo vetheh ub cap. #
Using thel ug wrench, loosen thew heel nuts/
bolts on thew heel youw ish tochang eby
about one full turn. Do no tunscr ewthew heel
bolts/nuts comple tely. #
Raise thev ehicle (/ page219). Ra
ising thev ehicle when changing awheel &
WARNING Risk of inju ryfrom incor rect
positioning of thej ack
If yo udon otposition thej ackc orrectl yatt he
appropriat ejackin gpointoft hevehicle, the
jac kc ould tip wi th thevehicle raised. #
Onlyposition thej ackatt he appropriate
jacking point of thev ehicle. The base of
th ej ackm ustbep ositioned vertically
under thej acking point of thev ehicle. &
WARNING Risk of inju ryfrom vehicle tip‐
ping
On slopes, thej ackc ould tip wit hthe vehicle
ra ised. #
Neverc hang eaw heel on aslope. #
Consult aqualified specialis tworks hop. *
NO
TEVehicle damag efromt he jack If
yo udon otpositio nthe jac kcorrectl yatt he
appropriat ejacks uppor tpoin toft hevehicle,
th ej ackc ould tip overwitht he vehicle raised. #
The jac kisdesigned exclusively for
jacking up thev ehicle at thej acks up‐
por tpoints. Re
quirements:
R Ther eareno persons in thev ehicle.
R The vehicle is prepared forc hanging awheel
(/ page218).
Impo rtant no tesonu singthej ack:
R Onlyusethev ehicle-speci ficj ackt hat has
been tested and appr ovedbyM ercedes-Benz
to raise thev ehicle. If thej ackisu sed incor‐
re ctl y,it could tip overwhilet he vehicle is
ra ised.
R The jac kisdesigned onl ytoraisethev ehicle
fo ras horttime whil eawheelisb eing
ch anged and is no tsuitable forc arrying out
maintenance workunde rthe vehicle.
R Avoid changing awheel on uphill and downhill
slopes.
R The jac kmustbep lacedonaf irm,flat and
non-slip sur face. If necessar y,use alarge,
fl at, load bearing and non-slip unde rlay.
R The base of thej ackisp ositioned vertically
under thej acks uppor tpoint.
Saf etyi nstruction swhile thev ehicle is raised:
R Do no tputyour hands or feet unde rthe vehi‐
cle.
R Do no tlie underneat hthe vehicle.
R Do no tstart thev ehicle and do no trelease
th ep arking brake.
R Do no topen or close an ydoors. Wheels and tires
219

Jackin
gpoints 1(rubber stoppers) ar elocated
behind thef ront wheel ar ches and in front of the
re ar wheel ar ches. #
Place jack 2beneat hcorresponding jack
suppor tpoint 1. #
Turn handwheel 3until thep lateofj ack2
sits securely on jac ksuppor tpoint 1. #
Ensur ethat theb ase of jack 2is positioned
ve rticall yunder jackin gpoint 1. #
Assemble adap ter4 and ratchet 5from
th ev ehicle tool kit. #
Place adap ter4 and ratchet 5ontheh exa‐
gon nut of jack 2sothat thel ette ring
AU F/UP is visible. #
Turn ratche twrench 5intheA UF/UP direc‐
tion unti lthe tir eisraised amaximum of
1. 2i nch( 3c m) of fthe ground.
When doing so, jack 2maym ove toone of
th es ide suppor tsurfaces. Re
moving awheel Re
quirements:
R The vehicle is raised (/ page219).
When changing awheel, avoid applying an yforce
to theb rake discs since this could impair the
le ve lofc omfort when braking.
* NO
TEDama getothre adin gfromd irton
wheel bolts #
Do no tplace wheel bolt sinsandorona
dirty sur face. #
Unscr ewthew heel bolts. #
Remo vethew heel. Installing
anew wheel Re
quirements:
R The wheel is remo ved( /pag e220). &
WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut thre ads or wheel hub/wheel mounting
bolt thre ads can cause thew heel bolts/wheel
nuts tocome loose. #
Nevero il or grease thet hreads. #
Inthee vent of damag etothethre ads,
con tact aq ualified specialis tworks hop
immediatel y. #
Have thed amaged wheel bolts or dam‐
aged hub thre ads replaced. #
Do no tcontinue driving. &
WARNING Risk of inju ryfrom tightening
whee lbolts and nuts
If yo ut ighten thew heel bolts or wheel nuts
when thev ehicle is raised, thej ackc ould tip. #
Onlytighten wheel bolts or wheel nuts
when thev ehicle is on theg round. *
NO
TEDama getoelectronic component
parts thro ugh theu se of tire-ins talling
to ols Ve
hicles with atirep ressur emonitoring
sy stem: ther ea reelectronic component
parts in thew heel. Tire -ins talling tools should
no tbea pplied in thea reaoft hevalve.
Otherwise, thee lectronic componen tparts
could be damaged. #
Alwaysh ave tires changed at aqualified
specialis tworks hop. #
Obser vethei nformation on thec hoice of
tires (/ page216). #
Obse rvet he instructions and saf etyn otes on
ch anging awheel (/ page216). #
Fors afet yr easons, onl yuse wheel bolt sor
wheel nut swhichh aveb een appr ovedby
Mercedes-Benza ndfort he wheel in question. #
Clean thew heel and wheel hub contact sur fa‐
ces. #
Slide thew heel whic histober e-installed
ont othe wheel hub and push it on. 220
Wheels and tires