2020 MERCEDES-BENZ SPRINTER MY20 with 7” screen

Ste
p2 Example
1E xamp le 2
Numb er of people in thev ehicle
(driver and occupants) 51
Distribution of theo ccupant sFront:2
Re ar:3 Fr
ont :1
We ight of occupant sO ccupant 1:150lbs (68 kg)
Occupant 2: 180lbs (82 kg)
Occupant 3: 160lbs (7 3kg)
Occupant 4: 140lbs (63 kg)
Occupant 5: 120lbs (5 4kg) Occupant 1: 200 lbs (9
1kg)
To talw eight of all occupant s750 lbs (340 kg)2 00 lbs (91kg) Ste
p3 Example
1E xamp le 2
Pe rm issible load (maximum
gross vehicle weight rating from
th eT irea nd Loadin gInforma‐
tio np lacar dminus theg ross
we ight of all occupants) 15
00 lbs (680 kg)00F875 0lbs
(340 kg)=7 50 lbs (340 kg)15
00 lbs (680 kg)00F8200 lbs
(9 1k g)=1 300 lbs (589 kg) Ti
re labeling Overvie
woftirel abeling 1
Uniform Ti reQuality Grading Standards
(/ page255)
2 DOT(Department of Transpor tation), (TIN)
Ti re Identification Number (/ page256)
3 Maximu mtirel oa d( /pag e257)
4 Maximu mtirep ressur e(/ pag e257) 5
Manufacturer
6 Chara cteristics of thet ire( /pag e257)
7 Tire size designation, load-beari ng capacity,
speed rating and load ind ex (/pag e257)
8 Tire name
% The da
tashown in thei llustration is sample
data. Information on tir
equality grades Ac
cording tother equirements of theU .S.
Depa rtment of Transpor tation's "Uni form Tire
Quality Grading Standards" tir emanufacturers
mus tgrade their tires using thef ollowing three
per form anc efactors: Wheels an
dtires 255

1
Tread weargrade
2 Traction grade
3 Temp eratur egrade
% The dat
ashown in thei llustration is sample
data.
% This grading is no
tlegall yprescribed forC an‐
ada,b ut specified in mos tcases anyw ay.
Tr ead weargrade
The tread wear grade is acomparativ egrading
based on tread wear grade testsc onducted
under contro lled condition sonaspecified U.S.
Depa rtment of Transpor tatio nt esttrack .F or
ex ample, atireg raded 150w ould wear one and
one-half times as well on theg ove rnment test
trac kasat ireg rade d1 00.
The relativ eperform anc eoft ires depends upon
th ea ctual conditions of their use, ho wever,and
ma ydepar tsignificantl yfromt he nor mdueto
va riations in drivin ghabits, servic epractices and
dif fere nces in road characteristic sand climate
conditions.
Tr actio ngrade &
DANG ER Risk of acciden tdue toinade‐
qu atet raction
The traction grade assigned tothis tir eis
based on stra ight-ahead brakin gtraction
te sts, and does no tinclude either accelera‐
tion, cornering, hydroplaning or peak traction
ch aracteristics. #
Alwaysa dap tyour driving stylea nd
driv eatas peedtosuit thep reva iling
traf fica nd weather conditions. *
NO
TEDama getothed rive trai nfrom
wheelspin #
Avoid wheelspin. The traction grades
–fromh ighes ttolowest –
ar eA A, A, Band C. These grades relat etot he tire's ability
tocome toas tandstill on awetpave‐
ment under controlle dconditions on aspecified
U. S. go vernment test sur face mad efroma sphalt
and concr ete.
Te mp eratur egrade &
WARNING Risk of accident from tire
ove rheating and tir efailure
The temp eratur egrade fort his tir eisestab‐
lished forat iret hat is properly inflated and
no to verloaded. Excessiv espeed, underinfla‐
tion, or excessiv eloading, either separatel yor
in combination, can cause excessiv eheat
build-up and possible tir efailure. #
Obser vether ecommended tir epres‐
sures and regular lych eckt he tir epres‐
sur eofa ll tires including thes pare
wheel. #
Adjus tthe tir epressur easn ecessar y. The
temp eratur egrades ar eA(highes tgrade), B
and C. These relat etoat ire'sresis tance toheat
and its ability torelease heat on aspecified test
wheel in laborator ytests under cont rolled condi‐
tions. Sus tained high temp eratures can cause the
material of thet iretod egenerat eand reduce tire
life. In addition, excessivel yhigh temp eratures
can lead tosudden tir efailure. Grade Crefer sto
ap erform anc ewhicha ll passenger vehicle tires
mus texhibit, accordin gtotheU.S. Depa rtment
of Transpor tation's requ irements. Information on DO
Tand TIN (Tir eIdentifica‐
tion Number) U.
S. tir eregulations indicat ethat everyt irem an‐
ufacturer or retreade rmustimp rint aT IN in or on
th es ide wall of eac htirep roduced. %
The dat
ashown in thei llustration is sample
data. 256
Wheels and tires

The TIN is
aunique identification number fort ires
and consists of thef ollowing components:
R DOT(Department of Transportation): tire
symbol 1indicates that thet irec omplies
wit hthe requ irements of theU .S. Depa rtment
of Transpor tation.
R Manufacturer identi fication code: manu‐
fa cturer identification code 2prov ides infor‐
matio nabout thet irem anufacturer .New tires
ha ve ac odew itht wo symbols. Retreaded
tires ha veac odew ithf our symbols.F or fur‐
th er information about retreade dtires, see
(/ page 260).
R Tire size: identifier 3describes thet ires ize.
R Tire type code: tiret ypec ode 4can be
used bythem anufacturer as acode to
describe specific characteristic softhe tire.
R Dat eofm anufactu re:date of manufacture
5 prov ides informatio nabout thea geof a
tire. The 1s tand 2nd number sindicat ethe
calendar week and the3 rdand 4t hnumbers
indicat ethe year of manufactur e(e.g. "3208"
re fers to the3 2ndw eek of they ear 2008). Information on maximum tir
eload %
The dat
ashown in thei llustration is sample
data.
Maximum tir eload 1isthem aximum permissi‐
ble weight forw hichthe tir eisa pprove d.
Do no toverload thet ires by ex ceeding them axi‐
mum permissible load. The maximum permissible
load can be found on thev ehicle's Tire and Load‐
ing In form atio nplacar dont he B-pillar on thed riv‐
er's side (/ page253). Information on maximum tir
epressure %
The dat
ashown in thei llustration is sample
data.
Maximum permitted tir epressure 1,whichis
permitted fort he tires mus tnotbe exceeded.
Exception: whe nusing the2 25/ 75R16C
12 1/120R (122L) tires as aspare wheel on the
re ar axle of Supe rSinglev ehicles wit hadista nce
limit of 62 mi (100 km) and speed limit of 34 mph
(55 km/h). Information on tir
echaracteristics %
The dat
ashown in thei llustration is sample
data.
This information describes thet ype of tir ecord
and then umber of la yers in side wall1 and
under tir etread 2. Ti
re size designation, load-bearing capacity,
speed ratin ga nd load index &
WARNING Risk of inju rythro ugh exceed‐
ing thes pecified tir eload rating or the
permissible speed rating
Exceeding thes pecified tir eload rating or the
permissible speed rating ma ylea dtot ire
dama geand tothet ires bur sting. #
Therefore, onl yuse tir etypes and sizes
appr ovedfor your vehicle model. Wheels and tires
257

#
Obser vethet irel oad rating and speed
ra ting requ ired fory our vehicle. 1
Prefixing letter
2 Nominal tir ewidthinm illimeters
3 Aspect ratio (i npercent)
4 Tire code
5 Rimd iame ter
6 Load-bearing index
7 Speed rating
8 Loadind ex
% The dat
ashown in thei llustration is sample
data.
Fu rther information about reading tir edatac an
be obtaine dfroma nyqualified specialis twork‐
shop.
Prefixing letter 1
1:
R "LT": light truc ktires in accordance wit hUS
manufacturer standards.
R "C": tires forc ommercial usage in accordance
wit hE uropean manufacturer standards.
Aspect ratio (i npercent) 3 3:
The size ratio betwee nthe tir eheight and tire
widt hand is shown in percent (tir eheight divided
by tirew idth ).
Ti re code 4 4(tiretype):
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:
Numerical code whic hspecifies them aximum
load-bearing capacity of atire( "91" equals, e.g.
13 56 lb (6 15kg)).
The tir eload-bearing capacit ymustbeatl east
half theg ross axle weight rating of thev ehicle. Do no
toverload thet ires byexceeding them axi‐
mum permissible load.
See also:
R Maximum permissible load on theT irea nd
Loading In form atio nplacar d(/pag e253)
R Maximum tir eload (/ page257)
R Load index
Spee drating 7
7:
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 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. 258
Wheels and tires

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 epressures forc old 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 actuall yins 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 ever exc eed theG ross Axle Weight Ra
ting .You can find theG ross Axle Weight Rating
on theB -pillar on thed rive r's side.
Speed rating: thes peed rating is pa rtof thet ire
identification .Itspecifies thes peed rang ef or
whic hatireisa pprove d.
GV W( Gross Vehicl eW eight): theG ross Vehicle
We ight includes thew eight of thev ehicle includ‐
ing fuel, tools, thes par ew heel, accessories
ins talled, occupants, luggag eand thet railer
dr aw bar nose weight if applicable. The Gross Vehi‐
cle Weight mus tnever exc eed theG ross Vehicle
We ight Rating (GVWR )specifie donthe B-pillar on
th ed rive r's side.
GV WR (Gross Vehicl eW eight Rating): the
GV WR is them aximum permitted gross weight of
th ef ully laden vehicle (weight of thev ehicle
including all accessories, occupants, fuel, lug‐
ga ge and thet railer dr awbar nose weight if appli‐
cable). The Gross Vehicle Weight Rating is speci‐
fi ed on thev ehicle identification plat eonthe B-
pillar on thed rive r's side.
Maximum weight of thel aden vehicle: the
maximu mweight is thes um of thev ehicle's curb
we ight ,weight of thea ccessories, maximum load
and thew eight of thef actor yins talled optional
equipment.
Kilopascal (kPa): metric unitfort irep ressu re.
6.9 kP aarethee quivalent of 1psi. Ano ther unit
fo rt irep ressu reis bar .100 kilopascals (kPa) are
th ee quivalent of 1bar.
Load index: in additiontothel oad-bearing index,
th el oad inde xmayalso be imprinted on thes ide‐
wa ll of thet ire. This specifies thel oad-bearing
capacity mor eprecisel y.
Cur bw eight: thew eight of avehicle wit hstand‐
ar de quipmen tincludin gthe maximum capacity
of fuel, oil and coolant. It also includes thea ir-
conditioning sy stem and optional equipment if
th ese ar einstalled on thev ehicle, but does not
include passenger sorluggage.
Maximum tir eload: them aximum tir eload is
th em aximum permissible weight in kilog rams or
lbs forw hichat ireisa pprove d.
Maximum permissible tir epressure: maximum
permissible tir epressur efor one tire.
Maximum load on one tire: maximum load on
one tire. This is calculated bydividing them axi‐
mum axle load foro ne axle bytwo.
PSI (pounds per squar einch): standar dunit of
measuremen tfor tir epressu re. Wheels and tires
259

Aspec
tratio: relationship between tir eheight
and tir ewidthinp ercent.
Ti re pressure: pressureinside thet irea pplying
an outwar dforce toeve rysquar einc hoft he
tire's sur face. The tir epressur eiss pecified in
pounds per squar einc h( psi), in kilopascal (kPa)
or in bar .The tir epressur eshoul donlybec orrec‐
te dw hen thet ires ar ecold.
Ti re pressur eoncoldt ires: thet ires ar ecold
when thev ehicle has been par kedw itht he tires
out of direct sunlight foratl east thre eh our sand
th ev ehicle has been driven less than 1m ile
(1.6 km).
Ti re contact sur face: thep artoft he tir ethat
comes int ocontact wi th theroad.
Ti re bead: thep urpose of thet ireb ead is to
ensur ethat thet ires its securel yonthe wheel
ri m. Ther eareseveralw irec ores in thet ireb ead
to preve ntthet iref romc hanging lengt honthe
whee lrim.
Sid ew all: thep artoft he tir ebetwe en thet read
and thet ireb ead.
Special equipment weight: thec ombined
we ight of those optional extras that we igh more
th an ther eplaced standar dparts and mor ethan
5l bs (2. 3kg). These optiona lextras ,suc has
high-pe rformance brakes, le velc ontrol sy stem, a
ro of luggag erackorah igh-perform anc ebatter y,
ar en otincluded in thec urb weight and the
we ight of thea ccessories.
TIN (Tir eIdentification Number): auniqu eiden‐
tification number whic hcan be used byatire
manufacturer toidentify tires, fore xamp lefora
product recall, and thus identif ythe pur chasers.
The TIN is made up of them anufacturer identifi‐
cation code, tir esize, tir etype code and them an‐
ufacturing date.
Load-bearing index: thel oad-bearing inde x(also
load index) is acode that con tains them aximum
load-bearing capacity of atire.
Tr action: traction is ther esult of friction between
th et ires and ther oad sur face.
We ar indicator: narrow bars(tread wear bars)
th at ar edistributed overthe tir etread. If thet ire
tread is le velw itht he bars, thew ear limit of
1/1 6in( 1.6m m) has been reached.
Distribution of vehicl eoccupants: distribution
of vehicle occupants over designated seat posi‐
tions in avehicle. Maximum permissible pa
yload weight: nomi‐
nal load and luggag eload plus 150lbs (68 kg)
multiplied bythen umber of seats in thev ehicle. Changing
awheel Note
sons electing, installing and replacing
tires Yo
uc an ask fori nformation rega rding permit ted
wheel/tir ecombinations at aqualified specialist
wo rkshop. &
WARNING Risk of accident du etoincor‐
re ct size sofwheels and tires
If wheels and tires of thew rong size ar eused,
th ew heel brakes or wheel suspension com‐
ponents ma ybedamaged. #
Alwaysr eplace wheels and tires with
ones that fulfill thes pecification softhe
original part.
Fo rw heels, pa yattention tothef ollowing:
R Designation
R Type
R Perm issible wheel load
R Wheel of fset
Fo rtires, pa yattention tothef ollowing:
R Designation
R Manufacturer
R Type
R Load-bearing index
R Speed rating &
WARNING Risk of inju rythro ugh exceed‐
ing thes pecified tir eload rating or the
permissible speed rating
Exceeding thes pecified tir eload rating or the
permissible speed rating ma ylea dtot ire
dama geand tothet ires bur sting. #
Therefore, onl yuse tir etypes and sizes
appr ovedfor your vehicle model. #
Obser vethet irel oad rating and speed
ra ting requ ired fory our vehicle. 260
Wheels and tires

*
NO
TEVehicle and tir edamag ethrough
tir et ype sand sizes that ha venotb een
appr oved Fo
rs afet yr easons, onl yuse tires, wheels and
accesso ries whic hhave been specially
appr ovedbyM ercedes-Benzf oryour vehicle.
These tires ha vebeen speciall yadap tedf or
use wit hthe contro lsystems, suc hasABS or
ESP ®
.
Otherwise, cer tain properties ,suc hash an‐
dling characteristics, vehicle noise and con‐
sum ption could be adversel yaffected. Fur‐
th ermore, other tir esize could result in the
tires rubbing agains tthe body and axle com‐
ponents when loaded. This could result in
damag etothe tireort hevehicle. #
Onlyuse tires, wheels and accessories
th at ha vebeen checkeda nd recommen‐
ded byMercedes-Benz. *
NO
TEDriving sa fety pu tatriskbyretrea‐
de dt ires Re
treade dtires ar enotcheckedorr ecom‐
mended byMercedes-Benz, as pr evious dam‐
ag eisn otalw aysd etected during ther etre ad
process.
Driving sa fety cannot, therefore, be guaran‐
te ed. #
Do no tuse used tires when their pr evi‐
ous usag eisunknown. *
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 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 tires mar kedM +S
fo ra ll 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.
% Ve
hicles with twin tires: Wheels and tires
261

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 to9,480 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 e246)
R Tire and Loading In form atio nplacard
(/ page253)
R Tire size designation, load-beari ng capacity,
speed rating and load ind ex (/pag e257)
R Tire pressur etable
R Notesont he emer gency spa rewheel
(/ page268) 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.
It is imperati vetoobser vethei nstruction sand
saf etyn otes on "Changing awheel" when doing
so. Wheel 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 y3
R 225/7 5R16CFA
R 285/65 R16C RA
R LT24 5/7 5R16
R LT21 5/85 R16
% 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.
If yo uc hang ethe wheel size of your vehicle, for
ins tance when changing wheels forw inter opera‐
tion, checkt hat it is assigned tothec orrect
wheel size catego ry.Ift he wheel size category
ch anges, youm usth ave your vehicle's control
unit srecoded at aqualified specialis tworks hop.
Otherwise, thed ispla yaccuracy of thes peedom‐
et er and theo dome terw illbeo utsidethe legally
prescribed tolerance. It ma yalso be lo wer,i.e.
th ec urrent road speed is then higher than the
speed shown on thes peedome ter.If ad eviation
is outside ther ang eoft olerance, driving saf ety
sy stems and driving sy stems ma ybeoperation‐
ally impaired or ma ydetect amalfunction and
switc hthemselves off. 262
Wheels and tires