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

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

Lo
weri ngthev ehicle af teraw heelchange &
WARNING Risk of accident du etoincor‐
re ct tigh tening torque
Th ew heel scould come loose if thew heel
bolts or wheel nuts ar enottightened tothe
prescribed torque. #
Ensu rethat thew heel bolts or wheel
nuts ar etightened tothep rescribed
tightening torque. #
Ifyo ua renots ure, do no tmovet he
ve hicle. Contact aqualified specialist
wo rkshop and ha vethet ightening tor‐
qu ec hec kedi mmediately. Re
quirements:
R The ne wwheel has been ins talled
(/ page220). #
Place thea dap tera nd ther atche tonthe hex‐
agon head nut of thej acks ucht hat thel ette r‐
ing AB/DOWN is visible. #
Tolowe rthe vehicle: turnthe ratche toft he
jac kc ounter-clo ckwise. #
Steel wheels: tightent he wheel bolts or
wheel nuts evenly in acrosswise patter nin
th es equence indicated (1 to5 )and to a
maximu mof200 Nm. #
Alloy wheels: tightenthew heel bolts or
wheel nuts evenly in acrosswise patter nin
th es equence indicated (1 to5 )and to a
maximu mof180 Nm. #
Che ckthet irep ressur eoft he newl yins talled
wheel and adjus titifnecessar y.
Ve hicles with thet irep ressur emonitor sys‐
te m: allins talled wheels mus tbeequipped with
functioning sensors. #
Retighten thew heel bolts tothes pecified
tightening torque af tert he vehicle has been
driven 31miles (50 km). %
When using
awhee lors parew hee lwitha
ne worn ewly painted disk wheel, ha vethe
wheel bolt sorwheel nut sretightene dagain
af te ra pproxima tely 62 1to3 ,107 miles
(1,000 to5,000 km) .Obser vethes pecified
tightening torque. Infor
matio nonw heeland tir ecom binations
Gene raln otes
Re treade dtires ar enotcheckeda nd recommen‐
ded byMercedes-Benzasitisn otalw aysp ossi‐
ble todetect pr evious damag eafter retreading.
Fo rthis reason ,Mercedes-Ben zcanno tguarantee
th eir driving saf ety. Do no tuse used tires when
th eir pr evious usag eisunknown.
Fo rs afet yr easons, Mercedes-Benz recommends
th at youo nlyu se tires, wheel sand accesso ries
whic hhaveb een appr ovedbyM ercedes-Benzf or
yo ur vehicle.
These tires ha vebeen speciall yadap tedf or use
wit hd riving saf etys ystems, suc hasABS or
ESP ®
.
Onl yuse tires, wheels and accessories that ha ve
been checkeda nd recommended byMercedes-
Benz.C ertain characteristics, suc hashandling,
ve hicle noise emissions, fuel consum ption, etc.
ma yotherwise be adversely af fected. Other
wheel size smaycause thet ires tocome int ocon‐
ta ct wi th thevehicle body and axle components
when under load. This ma yresult in damag eto
th et ireort hevehicle.
Mercedes-Benzisn otresponsible fora ny dama ge
caused byusin gtires, wheel soraccesso ries
ot her than those recommended.
Information on tires, wheels and permissible
combinations can be obtained at aqualified spe‐
cialis tworks hop.
The smaller thec ross-section of atireofas pe‐
cific wheel size, thew orse thed riving comfor ton
poor road sur faces. Ride and da mping com fort
ar er educed and ther isk increases that when you
driv eovero bstacles ,dam agetow heels and tires
ma yresult.
If yo uc hang ewheel siz eonyourvehicle, checkit
is assigned tothec orrect wheel size catego ry
( / pag e218). If thea ssignmen tchanges without
re coding thec ont rolu nit sint hevehicle, the
speedome terw illn ot displa ythe speed accu‐
ra tely.D riving safety sy stems and driving sy stems
ma ythen be operationally impaired or ma ydetect
am alfunction and switc hthemselves off. Wheels and tires
221

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

Setting
thed ate( vehicle without
st eering-wheel but tons) ........................ 14 3
Setting thel anguag e(vehicle with
st eering-wheel but tons) ........................ 14 8
Setting thel anguag e(vehicle with‐
out steering-wheel but tons).. ................ 14 3
Setting thes peed
see Cruise control
Setting thet em peratu re.......................... 93
Setting thet ime(vehicle wit hsteer‐
ing-wheel but tons) ................................. 14 8
Setting thet ime(vehicle without
st eering-wheel but tons) ........................ 14 3
Setting units on theo n-boa rdcom‐
pu ter( ve hicl ewiths teering-wheel
but tons)................................................... 14 8
Setting units on theo n-boa rdcom‐
pu ter( ve hicl ewithout steering-
wheel but tons).. ..................................... 14 3
Shortcuts (destination entry)............... 15 8
Showing traf fici nformation .................. 16 0
Side airbag................................................28
Side window Closing................................................. 56
Closing (all).......................................... 56
Closing using thek ey........................... 58
Co nvenienc eclosing............................ 58
Con venience opening........................... 57
Opening................................................ 56
Opening (all). ........................................ 56
Opening wi th thekey............................ 57
Problems..............................................59
Side windo ws
Re setting.............................................. 58
Size designation (tire) ............................213
Sliding door B-pillar door sill (button)....................... 48
Center console (button)....................... 48
Child saf etyl oc k................................... 40
Closing (from thei nside)......................47
Closin g(from theo utside).................... 47
Opening (from thei nside).....................47
Opening (from theo utside)................... 47
Smartphone Configuring settings........................... 15 3
Pa iring................................................ 161
Placing acall....................................... 161
Setting functions................................. 161
Sno wchains........................................... 205 Soc
ket(12 V)
Fr ont center console............................76
Spar ewheel
Ins talling/ removing........................... .223
No tes.................................................2 22
Special seat bel tretra ctor...................... 36
Speciali stwo rkshop ................................. 18
Speed ratin g(tire) .................................. 213
Speedome ter.......................................... 13 6
St andard
see Lane Keeping Assist
St andar drear benc hseat
Re moving/ins talling............................ .72
St anding lamps ........................................ 77
St anding/parking lamps
Re placing light sources.........................81
St arting assi stance
see Jump -sta rt connection point
St arting-o ffaid
see Hill star ta ssist
Ste ering wheel but tons ............................. 9
St opping thea larm (ATA ) ......................... 60
St orag ecompa rtmen tint he rear
comp artment .......................................... 202
St orag ecompa rtmen tint he seat
base......................................................... 201
St orag espace in thec argo com‐
pa rtment ................................................. 203
St ow ages pace
Glasse scompartment.......................... 75
Sulfur content........................................2 28
Summer tires .......................................... 204
Sur round lighting
Setting (vehicl ewiths teering-
wheel buttons).................................... 14 8
Switch-of fdela ytime
Setting( vehicle wit hsteering-
wheel buttons).................................... 14 8
Switching air-recirculation mode
on/off ........................................................ 94
Switching on thei gnition ........................ 97
Switching seat heating on/off ................74
Switching synchronization function
on/of f(control panel) .............................. 94
Switching theA /C function on/off ........ 92 282
Index

Switching
ther ear window
defros tero n/off....................................... 95 T
Ta il lamps (replacing bulbs) .................... 83
Ta ilgate
EA SY-PAC K........................................... 52
Limiting theo pening angle...................53
Opening and closing.............................51
Opening in an emer gency..................... 51
Programming thek eybut ton................ 54
Re setting.............................................. 53
Separately opening rear wind ow.......... 53
Ta ilpipes (care)...................................... .184
Ta nk capacity
Fu el.................................................... 228
Re ser ve(fuel).....................................2 28
Te ch nical data
Information........................................ 225
No tes( trailerh itch)............................ 233
Ti re pressur emonitor.........................2 10
Tr ansmission oil................................ .229
Ve hicle identification plate.................2 26
Te lephone
Operation via theo n-boar dcom‐
puter (vehicle wit hsteering wheel
buttons).............................................. 147
Te mp erature
Coolan t(displa yinthe on-board
computer)........................................... 14 2
Te mp eratur egrade ................................. 211
Ti e-d owne yes ........................................ .171
Ti re Identification Numbe r(TIN)........... 212
Ti re labeling
Characteristics.................................. .213
DO T,Tire Identification Number
(TIN)................................................... .212
Load inde x.......................................... 213
Load-bearing capacity........................ 213
Maximum tir eload.............................. 213
Maximum tir epressure.......................2 13
Overview.............................................2 11
Size designation................................. 213
Spee drating...................................... .213
Te mp eratur egrade.............................. 211
Ti re qu alitygrades.............................. 211
Tr action grade.................................... .211
Tr ead wear grade................................ 211
Ti re load (maximum)............................. .213 Ti
re pressure
Checking (tire pressur emonitoring
sy stem).............................................. 209
Maximum............................................ 213
No tes.................................................2 06
Re startin gthe tir epressur emonitor.. 209
Ti re pressur emonitoring sy stem
(function)............................................ 209
Ti re pressur etable............................ .207
Ti re pressur emonitor
Checkin gthe tir epressure................. 209
Checking thet iret emperature...........2 09
Fu nction............................................. 209
Re starting.......................................... 209
Te ch nica ldata.................................... 210
Ti re pressur etable ................................. 207
Tir eq uality grades .................................. 211
Ti re temp erature
Checkin g(tirep ressur emonitoring
sy stem).............................................. 209
Ti re pressur emonitoring sy stem
(function)............................................ 209
Ti re tread ............................................... .204
Ti res
Characteristics................................... 213
Checking........................................... .204
Che cking thet irep ressur e(tire
pressur emonitoring sy stem).............. 209
Definitions.......................................... 214
Direction of rotation........................... 218
DO T,Tire Identification Number
(TIN)................................................... .212
Fla ttire............................................... 189
Ins talling........................................... .220
Load inde x.......................................... 213
Load-bearing capacity........................ 213
M+S tires...........................................2 05
Maximum tir eload.............................. 213
Maximum tir epressure.......................2 13
No ise.................................................. 204
No tesoni nstalling............................. .216
Overvie woftirel abeling..................... 211
Re moving........................................... 220
Re placing.................................... 216, 218
Re startin gthe tir epressur emonitor.. 209
Selecting.............................................2 16
Size designation................................. 213
Sno wchains....................................... 205
Speed rating....................................... 213
St oring................................................ 218
Summer tires..................................... 204
Te mp eratur egrade.............................. 211
Ti re pressur e(notes)..........................2 06 Index
283

Ti
re pressur emonitoring sy stem
(function)............................................ 209
Ti re pressur etable............................ .207
Ti re qu alitygrades.............................. 211
Tr action grade.................................... .211
Tr ead wear grade................................ 211
Un usual drivin gcharacteristics.......... 204
Wheel size categories......................... 218
Wheel/tir ecombinations....................2 21
Ti res
see Wheels
To ol
see Storag ecompartmentint he
re ar compartment
see Storag ecompartmentint he seat base
see Storag espace in thec argo
compartment
see Vehicle tool kit
To pT ether................................................. 38
To pping up the windshield washer
sy stem.................................................... .181
To uchscreen (media display)
Operating........................................... 15 3
To ws tarting .................... ........................ 200
To w- aw ay alarm
Arming and disarming......................... .60
Fu nction............................................... 60
To wing away
Bo th axle sont he ground.................... 19 8
Ra ised front or rear axle.................... .199
To wing eye
Ins talling/ removing........................... .200
St orag elocation................................. 200
To wing me thods .................................... .197
Tr actio ngrade ......................................... 211
Tr af fica nnouncements
Swit ching on/of f................................ 16 4
Tr aile rhitch
Care ................................................... 184
Gene raln otes.....................................2 33
Information........................................ .133
Informatio nabout trailer operation..... 131
Pe rm issible trailer loads and trailer
dr aw bar nose weight s......................... 13 4
Po we rsupply...................................... 13 5
Soc ket................................................ 13 2
Tr aile rloads ............................................ 233
Tr aile roperation
Coupling/Decoupling thet railer......... 13 2
Gross axle weight rating..................... 226 Information.........................................
13 3
No tes.................................................. 131
Pe rm issible trailer loads and trailer
dr aw bar nose weight s......................... 13 4
Po we rsupply...................................... 13 5
Soc ket................................................ 13 2
Tr ailer loads........................................ 233
Tr aile rstabilization...... ........................... 11 3
Tr ansmissio noil
Gene raln otes.....................................2 29
Quality................................................ 229
Tr ansmissio nposition display.............. 104
Tr anspo rtby rail...................................... .99
Tr anspo rting (vehicle breakd own).. ......1 99
Tr ead weargrade ................................... .211
Tr im element (care)............................... .185
Tr ip computer
Re setting( vehicle wit hsteering-
wheel buttons).................................... 14 5
Re setting( vehicle without steering-
wheel buttons).................................... 14 2
Tr ip distance
Re setting( vehicle without steering-
wheel buttons).................................... 14 2
Tu neMix™
Creating alist.................................... .165
Tu rn signal light
Ad ditional tur nsignal lam p(replac‐
ing bulbs).............................................83
Re placing light sources.........................81
Tw o-w ayradio telephone
see Mobile phone
Tw o-w ayradios
Fr equencies....................................... 225
Ins tallation no tes................................ 225
Tr ansmission output (maximum )........ 225 U
Un locking setting .................................... .42
Un locking/locking
Swit ching automatic lockin gfea‐
tur eo n/off.......................................... .46
Un lockin gand opening front doors
from inside.......................................... .45
Up datin gsoftwar e(multimedia sys‐
te m)......................................................... 16 5
Using asun visor .....................................89
Using kickdown ...................................... 106284
Index

Wa
sher fluid
see Windshield washer fluid
Wa shing byhand (care)........................ .183
Wa shing thee ngine .............................. .183
Whee lrotation........................................ 217
Wheels Care ................................................... 184
Characteristic softhe tire................... 213
Checking........................................... .204
Che cking thet irep ressur e(tire
pressur emonitoring sy stem).............. 209
Definitions.......................................... 214
DO T,Tire Identification Number
(TIN)................................................... .212
Fla ttire............................................... 189
Ins talling........................................... .220
Load inde x.......................................... 213
Load-bearing capacity........................ 213
Maximum tir eload.............................. 213
Maximum tir epressure.......................2 13
No ise.................................................. 204
No tesoni nstalling............................. .216
Overvie woftirel abeling..................... 211
Re moving........................................... 220
Re placing.................................... 216, 218
Re startin gthe tir epressur emonitor.. 209
Ro tating.............................................. 217
Selecting............................................. 216
Size designation................................. 213
Sno wchains....................................... 205
Speed rating....................................... 213
St oring................................................ 218
Te ch nica ldata.................................... 221
Te mp eratur egrade.............................. 211
Ti re pressur e(notes)..........................2 06
Ti re pressur emonitoring sy stem
(function)............................................ 209
Ti re pressur etable............................ .207
Ti re qu alitygrades.............................. 211
Tr action grade.................................... .211
Tr ead wear grade................................ 211
Un usual drivin gcharacteristics.......... 204
Wheel size categories......................... 218
Wheel/tir ecombinations....................2 21
Wheel s(care).. ........................................ 184
Wi ndo wcurtain airbag.. .......................... 28
Wi ndo ws
see Side window
Wi ndo ws(care)...................................... .184
Wi ndshield
Defrosting............................................ 94
Re placing thew iper blades.................. 86 Wi
ndshield
see Windshield
Wi ndshield washer fluid........................ 231
Wi ndshield wipers
Re placing thew iper blades.................. 86
Switching on/of f.................................. 85
Wi nter driving (sno wchains)................ 205
Wi nter tires............................................. 205
Wi per blades
Ca re................................................... 184
Re placing.............................................86
Re placing (rear window).......................87
Wo rkshop
see Qualified specialis tworks hop 286
Index