winter tires MERCEDES-BENZ METRIS 2021 MY21 Operator's Manual

Depending on
thev ehicle's equipment, youh ave
th ef ollowing options on theSettings menu:
R Inthe Instrument Cluster submenu,changing
th ed ispla yoptions
R Inthe Time/Date submenu,changing the
time and da te
R Inthe Light submenu, changing thes ettings
fo re xterio rand interior lighting
R Inthe Vehicle submenu, switching vehicle
functions on/of foradjusting them
R Resetting thes ettings toFactory Setting #
Use the0059 or0065 button toselect the
Settings menu.
Instrumen tCluster submenu #
Use the0064 or0063 button toselect the
Instrument Cluster submenu.#
Press the0076 button.
In the Instrument Cluster submenu,youh ave
th ef ollowing options depending on thee quip‐
ment:
R Changing theu nit of measurement ford is‐
tan ce
R Changing thed ispla ylanguage.
R Selecting thep ermanen tdispla yint he
header of thed isplay #
Use the0064 or0063 button toselect the
desired function. #
Choose asetting.
Time/Date submenu #
Use the0064 or0063 button toselect the
Time/Date submenu. #
Press the0076 button. #
Use the0064 or0063 button toselect the
desired function. #
Press the0076 button. #
Choose asetting. #
Press the0076 button toconfirm.
Light submenu #
Use the0064 or0063 button toselect the
Light submenu. #
Press the0076 button.
In the Light submenu, youh ave thef ollowing
options depending on thee quipment:
R Activating/deactivating thes urround
lighting and swit ch-of fdelay time of the
ex terior lighting
An activated Surround Lighting: function
wo rkso nly in thed arka nd if thel ight
switc hisint he0058 position.
R Activating/deactivating thes witch-off
dela ytime of thei nterior lighting #
Choose asetting.
Vehicle submenu #
Use the0064 or0063 button toselect the
Vehicle submenu. #
Press the0076 button.
In the Vehicle submenu, youh ave thef ollow‐
ing options depending on thee quipment:
R Setting thes ensitivity of ther ain sensor
Yo uc an find fur ther information under
"Windshield wipers" (/ page85).
R Switching thea utomatic door loc kon/o ff
Yo uc an find fur ther information under
"Automatic locking mechanism"
(/ page46).
R Activating/deactivating thea coustic lock‐
ing verification signal #
Choose asetting.
Re setting thes ettings to fa ctorysettings #
Press the0064 or0063 button toselect Fac-
tory Setting. #
Press the0076 button.
The Reset All Settings? function will be dis‐
pla yed. #
Press the0064 or0063 button toselect Yes. #
Press the0076 button.
Fo rs afet yr easons, no tall function swill be reset.
The Limit Speed (Winter Tires) function ofthe
permanen tlimiter can be adjus tedo nlyint he
Vehicle submenu. Instrument clus
tera nd on-boar dcomputer 14 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 Cuts in thet ires
R Punctures in thet ires
R Tearsint 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 Chec kthe tir epressur e(/pag e206)
R Chec kthe 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 204
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
(/ page213).
Once youh ave installed thes ummer tires:
R Chec kthe tir epressur e(/pag e206)
R Restar tt he tir epressur emonitor
(/ page209) Information on M+S tires
&
WARNING Risk of accident caused by
incor rect wheel and tir edimensions
The wheel or tir esize and thet iret ype of the
emer gency spa rewheel or spar ewheel and
th ew heel tobe replaced ma ydiffe r.
To prev ent hazardous situations: #
Adapty our driving stylea ccording lyand
driv ecarefull y. #
Neverins tall mor ethan one emergency
spar ewheel or spar ewheel that dif fers
in size. #
Onlyuse an emer gency spa rewheel or
spar ewheel of adiffe re nt size brie fly. #
Have thee mer gency spa rewheel or
spar ewheel of adiffe re nt size replaced
at then eares tqualified specialis twork‐
shop. The ne wwheel mus thave thec or‐
re ct dimensions. &
WARNING Risk of an accident du eto
insuf ficient tir etread
M+S tires wi thatread dep thof less than 00CFin
(4 mm) ar enotsuitable foru se in winter and
do no tprovide suf ficient grip. #
M+S tires wi thatread dep thof less
th an 00CFin (4 mm) mus tbereplaced
immediatel y. At
temp eratures belo w50°F(10°C) use winter
tires or all-season tires –botha remar kedw ith
M+S.
Onl ywinter tires bearing the004D snowflake
symbol in addition totheM +S marking pr ovide
th eb estp ossible grip in wintr yroad conditions.
Only these tires will allo wdriving saf etys ystems
suc hasA BS and ESP ®
to also function optimally in winter
.Thes etires ha vebeen de veloped specif‐
icall 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 avei nstalled
(/ page213).
If yo ui nstall M+S tires that ha vealow er maxi‐
mum permissible spee dthan 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 checkt he tir epressur e(/pag e206)
R restar tt he tir epressur emonitor
(/ page209) Note
sons nowc hains &
WARNING Risk of accident du etoincor‐
re ctly ins talled sno wchains
If yo uh ave installed sno wchains on thef ront
wheels, they ma ydraga gains tthe vehicle
body or chassis components. #
Neverins tall sno wchains on thef ront
wheels. #
Onlyins tall sno wchains on ther ear
wheelsinp airs. &
WARNING Risk of accident du eto
unsuitable sn ow chains
Commerciall yavailable sn ow chains can
com eloose and damag echassi scomponents
or brak ehoses. #
Only ins tall sno wchains that ha vebeen
appr ovedbyM ercedes-Benzf orthese
tires. &
WARNING Risk of accident du etosnow
ch ains breaking
If yo ud rive toof astw iths nowc hains, they
can brea k,injur eother persons, and damage
th ev ehicle. #
Obser vethem aximum permissible
speed foro peration wit hsnowc hains. Wheels and tires
205

Ti
re pressur emonitoring sy stem Fu
nction of thet irep ressur emonitoring sys‐
tem
The sy stem checks thet irep ressur eand thet ire
te mp eratur eofthe tires ins talled on thev ehicle
by means of atirep ressure sensor.
Ne wt irep ressur esensors, e.g. in winter tires,
ar ea utomatically taught-in during thef irst jour‐
ne yt heya reused.
It is thed rive r's responsibility tosetthe tir epres‐
sur etot herecommended cold tir epressur esuit‐
able fort he operating situation (/ page206).
No tethat thec orrect tir epressur efor thec urrent
ope rating situatio nmustfirst be taught-in tothe
tir ep ressur emonitoring sy stem. If asubs tantial
loss of pressur eoccu rs,t he warning thre shold for
th ew arning messag eisaligned tothet aught-in
re fere nce values. Restar tt he tir epressur emoni‐
to ra fter adju sting tothec old tir epressure
(/ page209). The cur rent pressures ar esaved
as ne wreference values. This will ensur ethat a
wa rning messag ewill onl yappear if thet irep res‐
sur edrops significant ly.
The 0077 warning lam pinthe instrument clus ter
displa ysad etected pressur elossoram alfunc‐
tion as follo ws:
R Ifthe 0077 warning lam pislit continuousl y,
th et irep ressur eono ne or mor etires is sig‐
nificantly tool ow .The tir epressur emonitor is
no tm alfunctioning.
R Ifthe 0077 warning lam pflashes fora round a
minut eand then remains lit cons tantl y,the
tir ep ressur emonitorism alfunctioning.
R Am essa gealso appear sinthe instrument
clus ter.
Sy stem limits
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
R The tir epressur ehas been se tincor rectly.
R Thereisas udden pressur eloss caused, for
ex ample, byaforeign object penetratin gthe
tire.
R Ther eisam alfunction caused byano ther
ra dio signal source.
If th et irep ressur emonitor is malfunctioning, it
ma ytakem oret han tenm inutesf or the 0077 tire
pressur ewarning lam ptoinformyou of them al‐
function. When them alfunction has been recti‐ fi
ed, the 0077 warning lam pgoes out af tery ou
ha ve driven foraf ewminutes.
The tir epressur evalue indicated bytheo n-board
computer ma ydiffe rf romt hose measured at a
ga ss tatio nu singap ressur egauge.
The tir epressures shown bytheo n-boar dcom‐
puter refertot hose measured at sea le vel.At
high altitudes, thet irep ressur evalue indicated
by ap ressur egaug earehigher than those shown
by theo n-boar dcomputer .Inthis case, do not
re duce thet irep ressure.
Checking thet irep ressur eelectronically
(onl yvehicles wit hsteering wheel but tons)
Requ irements:
R The ignition is switched on. #
Press the0059 or0065 button toselect
Service. #
Press the0076 button. #
Press the0064 or0063 button toselect Tire
Pressure. #
Press the0076 button.
The displa yshows thec urrent tir epressur eof
ea ch wheel.
If th ev ehicle wasp arke df or longer than
20 minutes, theTire pressure will be displayed
after driving afew minutes messageappear sin
th ed ispla y.
Mak esuretoo bservethef ollowing fur ther rela‐
te ds ubject:
R Notesont irep ressur e(/pag e206)
Rest arting thet irep ressur emonitor
Requ irements:
R The ignition is switched on.
R The recommended tir epressu reis cor rectly
se tfor ther espectiv eoperating condition on
eac hoft hefour wheel s(/pag e207). Wheels and tires
209

Aspec
tratio (in percent) 3 3:
The size ratio betwee nthe tir eheight and tire
widt hand is shown in percent (tir eheight divided
by tirew idth ).
Tir ec ode 4
4 (tire type):
R "R": radial tire
Rim diam eter 5 5:
The diame teroft he bead seat (no tthe diame ter
of ther im flange). The rimd iame teriss pecified in
inches (in).
Load-bearing index 6 6:
Nu merical code whic hspecifies them aximum
load-bearing capacity of atire( "91" equals, e.g.
1, 356 lb (6 15kg)).
Th et irel oad-bea ring capacity mu stbe at least
half theg ross axle weight rating of thev ehicle.
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 nplacard
R Maximum tir eload (/ page213 )
R Load index
Spee drating 8 8:
Specifies thea ppr ove dm aximum 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 aMercedes-Benz Com‐
mercial VanC enter.
Summe rtires 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 7 7:
R "Light load": light load tire
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. 214
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

Yo
uw illfind atable wit hthe recommended tire
pressures forv arious vehicle loads on thei nside
of thev ehicle's fuel filler flap or unde r"Tire pres‐
sur etables" (/ page207).
Chec ktirep ressur eregular lyand onl ywhen the
tires ar ecold.
Obser vethef ollowing no tes:
R Alwayse quipthev ehicle wit htires of the
same size on agiven axle (left/right)
R Alwaysi ns tallth es ame type of wheels on
yo ur vehicle at agiven time (summer tires,
winter tires)
Yo uc an obtain information about this from a
Mercedes-Benz Commercial VanC enter.
% No
tallwheel/tir ecombinations can be
ins talled at thef actor yina llcountries.
Tires
R17 Tires
Steel wheels
225/5 5R17C1 04/102H (106N) 6.5Jx17H2ET50
225/55 R1 7C109/1 07H( 104H) 6.5Jx17H2ET50
225/55 R1 7C109/1 07T(10 4T) 6.5Jx17H2ET50 R17
Tires
Alloywheels
225/55 R1 7C104/102H (106N) 7Jx17H2ET51
225/55 R1 7C109/1 07H( 104H) 7Jx17H2ET51
225/55 R1 7C109/1 07T(10 4T) 7Jx17H2ET51Spar
ewheel Note
sont he eme rgency spar ewheel and
spar ewheel Spar
ewheel: wheel and tir edimension saswell
as thet ype of tir ecorrespond totheo ther ins tal‐
led wheels.
Emer gency spar ewheel: wheel and/or tire
dimension saswell asthet ype of tir earediffer‐
ent from thew heel tobe replaced. Alabel wit ha
speed limit can be found on thee mer gency spa re
wheel.
An ins talled emer gency spa rewheel or spare
wheel changes thed riving characteristic sand
bear srisks. &
WARNING Risk of accident caused by
incor rect wheel and tir edimensions
Whe nthe emergency spar ewheel or the
spar ewheel is ins talled, driving characteris‐
tic sm aybe se verely af fected.
The reis an inc reased risk of an accident.
To preve nt hazardous situations: #
Once thes par ew heel or thee mer gency
spa rewheel has been ins talled, check
th et irep ressur eand adjus tifneces‐
sar y. #
The emer gency spa rewheel ma yonly
be used temp oraril yand mus tbe 222
Wheels and tires