Obser
vethef ollowing no tes: Note
sonc leaning and car eP reve nting damag etothevehicle
Wheels/rims Usewate rand acid-free whee lcleaner. R
Do no tuse acidi cwhee lcleaner sto
re mo vebrak edust. Otherwise, wheel
bolts and brak ecomponents ma ybe
damaged.
R Toavo id cor rosion of brak ediscs and
brakepads, driv efor afew minutes
af te rc leaning befor eparking the
ve hicle. The brak ediscs and brake‐
pads warm up and dr yout.
Wi ndo ws
Clean wind owsinside and outsid ewitha
dam pcloth and wit hacleaning agent
re commended forM ercedes-Benz . Do no
tuse dr ycloth sora brasiv eorsol‐
ve nt-based cleaning agents toclea nthe
insid eofw indows.
Wi per blades
Carefully clea nthe folded-a wayw iper
blade swithad ampcloth. Do no
tclean thew iper blades tooo ften.
Exterior
lighting Clean
thel enses wit hawetspong eand
mil dc leaning agent, e.g .car sha mpoo. Onl
yuse cleaning agents or clo thss uita‐
ble forp last ic lenses.
Sensors Cleanthes ensor sinthe front and rear
bumper and in ther adiator grill wit ha
sof tcloth and car shampoo. When usin
gapowerwashe r,ke ep am in‐
imum dis tance of 11.8 in (30 cm).
Re ar view
camera and
360° Cam‐
era Use clea
nwater and asoftc loth toclean
th ec amer alens. Do no
tuse ap owe rwashe r.
Tr aile rhitch
R
Remo vetrace sofrustont he ball,
e.g. wit hawireb rush.
R Remo vedirtw ithal int-free clo th.
R Afterc leaning, lightly oil or grease
th eb all head.
R Obser vethen otes on car einthe
trailer hitc hmanufactu rer's operat‐
ing instructions. Do no
tclean theb all nec kwithap ower
wa sher or sol vent.
Slidin gdoor
R
Remo vefore ign object sfromt he
vicinity of thec ontact plates and
contact pins of thes liding door.
R Clean thec ontact plates and contact
pins wit hamild cleaning agent and a
sof tcloth. Do no
toilor grease thec ontact plates
and thec ontact pins. Maintenanc
eand care 225
Obser
vethea dditional following point sduring
st artin gassistance:
R Startin gassis tance ma yonly be pr ovided
using batteries wit hanominal voltag eof12V
R The vehicles mus tnot to uche acho ther
R Vehicles with agasoline engine: only per‐
fo rm startin gassis tance when thee ngine and
ex haus tsyst em ar ecold #
Vehicles with abatter ymain switch: check
whe ther theb atter ymain switc hisinserted
( / pag e120) #
Secur ethe vehicle using thep arking brake. #
Vehicles with automatic transmission:
shif tthe transmission toposition 005D. #
Switc hoffthei gnition and all electrical con‐
sumers. #
Open theh ood (/ page214). Example
:jump-s tart connection
% Right-hand driv
evehicle: thej ump-s tart
connection ma ybeonthe opposit eside. #
Remo vethec ove rfromt he positiv eterminal
on thed onor batter y. #
First,c onnec tthe positiv eterminal clam pof
th ej umper cables/charging cables tothe
positiv eterminal of theo ther vehicle's bat‐
te ry. #
With positiv eterminal clamp 2ofthe
jumper cable/charging cable ,slide ther ed
pr otectiv ecap on jump-s tarting connection
1 bac kwithac lockwise turn. #
Connect theo ther positiv eterminal clam pto
th ep ositiv eterminal of jump-s tart connection
1. #
During starting assistance: star tt he engine
of thed onor vehicle and le titrun at idle
speed. #
Firs t, connect then egativ eterminal clam pof
th ej umper cable/charging cable tothen ega‐
tiv ep ole of thed onor batter y. #
Connec tthe other negativ eterminal clam pof
th ej umper cable/charging cable toag round
po int on your ow nv ehicle (a bar emetal part
in thee ngine compartment). #
During starting assistance: star tt he engine
on your ow nv ehicle. #
When charging: star tt he chargin gprocess. #
During starting assistance: lett he engine
ru nf or afew minutes. #
During starting assistance: beforediscon‐
necting thej umper cable, switc honanelec‐
trical consumer on your ow nv ehicle, e.g. the
re ar wind owheater or lighting.
When thes tartin ga ssis tance/charging proces sis
comple te: #
Remo vethej umper cables/charging cables
in reve rseo rder:first then egativ eclam pfrom
th eg round point in thee ngine compartment,
th en then egativ eclam pfromt he donor bat‐
te ry.T he nt he positiv eclam pfromt he posi‐
tiv et erminal of jump-s tart connection 1,
th en thep ositiv eclam poft he donor batter y.
The redp rotectiv ecap springs bac ktoits ini‐
tial position when positiv eterminal clamp 2
is disconnected from jump-s tarting connec‐
tion 1.
Yo uc an obtain fur ther information at aqualified
specialis tworks hop. Installing/removing
thef loor co vering (vehi‐
cles with rear wheel drive) &
WARNING Risk of accident du eto
object sinthe driver's foot we ll
Object sinthe driver's foot we ll ma yimp ede
pedal tr avel or bloc kadepressed pedal.
This jeopardizes theo perating and road
saf etyoft hevehicle. #
Stow all object sinthevehicle securely
so that they canno tget intot he driver's
fo ot we ll. Breakdown assis
tance 233
Pe
rm issible towing me thods Bo
th axle sont he
gr ound Fr
ont axle raised Re
ar axle raised
Ve hicles wit hauto‐
matic transmission and
re ar-wheel drive Ye
s, no fur ther than
31 miles (50 km) at
31 mp h(50 km/h) Ye
s, no fur ther than
31 miles (50 km) at
31 mp h(50 km/h) Ye
s, if thes teering
wheel is fixe dint he
center position wit ha
st eering wheel lock
Ve hicles wit hall-wheel
drive Ye
s, no fur ther than
31 miles (50 km) at
31 mp h(50 km/h) No
NoTo
toww ithar aisedaxle: towing should be per‐
fo rm ed byatow ing compan y. To
wing away thev ehicle wit hbotha xleson
th eg round #
Obser vethen otes on permissible towing
me thods (/ page236). #
Mak esuret hat theb atter yisc onnected and
ch arge d.
When theb atter yisd ischar ged, thef ollowing sit‐
uations occur:
R The engine canno tbestarted.
R It is no tpossible torelease or appl ythe elec‐
tric parking brake.
R Vehicles with automatic transmission: the
automatic transmission canno tbeshiftedto
position 005Cor005D.
* NO
TEDama gedue to to wing away at
exc essivel yhigh speeds or overlong dis‐
ta nces The driv
etra in could be damaged when towing
at exc essively high speeds or over long dis‐
ta nces. #
Atow ing speed of 30 mph(50 km/h)
mus tnotbe exc eeded. #
Atow ing distanc eof30miles (50 km)
mus tnotbe exc eeded. %
Ve
hicles with automatic transmission
and rear wheel drive: ifth er eisam alfunc‐
tion, thea utomatic transmission ma ybe
loc kedinp osition 005D. If
th ea utomatic transmission cann otbe shif‐
te dtop osition 005C,transpor tthe vehicle
(/ page239). Atow ing vehicle wit hlifting
equipment is requ ired forv ehicle transport. &
WARNING Risk of accident whe ntow ing
av ehicle whic histoo heavy
If th ev ehicle being tow- star tedort owed
aw ay is heavier than thep ermissible gross
mass of your vehicle, thef ollowing situations
can occur:
R The towing eyem aybecome de tach ed.
R The vehicle/trailer combination may
swer veoreve noverturn. #
If ano ther vehicle is tow- star tedor
to we da way,its weight mus tnotexc eed
th ep ermissible gross mass of your own
ve hicle. If
av ehicle needs tobe towe dort ow st arted, its
we ight should no tbegreater that thep ermissible
gross mass of thet ow ing vehicle. #
Information on thev ehicle's permissible gross
mass can be found on thev ehicle identifica‐
tion plat e(/pag e274). #
Vehicles with automatic transmission: do
no to pen thed rive r's or co-driver door ,asthe
automatic transmission will automatically
shif ttop osition 005D. #
Installth et ow ing eye( /pag e240). #
Secur ethe towing device. Breakdown assis
tance 237
*
NO
TEDama gedue toincor rect connec‐
tion of thet ow bar #
Onlyconnec tthe towr ope or towb arto
th et ow ing eyes. %
Yo
uc an also secur ethe towing devic etothe
trailer hitch.
* NO
TEDama geand risk of accident when
to wing wit hatow ro pe Ther
eisar isk of an accident if youdon ot
obse rves afet ya nd pr otectiv emeasures when
to wing using atow ro pe.
Obser vethef ollowing points when towing
wit hat ow ro pe: #
Secur ethe towr ope on thes ame side
on bo thvehicles, if possible. #
Mak esuret he towr ope does not
exc eed thel egally prescribed length. #
Mar kthe towr ope in them iddle, e.g.
wit haw hitec loth (30 x30c m). This
makes other road user sawarethat a
ve hicle is being towe d. #
Obser vetheb rake lamps of thet ow ing
ve hicle while driving. Alw aysm aintain a
dis tance that ensures thet ow ro pe does
no ts ag. #
Do no tuse steel cables or chains to tow
yo ur vehicle. Otherwise, youc oul dd am‐
ag et he vehicle. #
Deactivat eautomatic locking (/ page50). #
Do no tactivat ethe HOLD function. #
Deactivat ethe tow- aw ay alar m(/pag e62). #
Deactivat eActiv eBrake Assi st (/ pag e150). #
Vehicles with automatic transmission:
shif tthe automatic transmission toposition
005C. #
Release thep arking brake. &
WARNING Risk of accident du etolimi‐
te ds afet y-re lated function sduring the
to wing process
Saf ety-re lated function sarelimited or no lon‐
ge ra vailable in thef ollowing situations:
R thei gnition is switched off.
R theb rake system or po wersteering sys‐
te mism alfunctioning.
R thee nergy suppl yorthe on-boar delectri‐
cal sy stem is malfunctioning.
When your vehicle is then towe da way,signifi‐
cantly mor eeffor tm aybe requ ired tosteer
and brak ethan is normally required. #
Use atow bar. #
Mak esuret hat thes teering wheel can
mo vefreely ,befor etow ing thev ehicle
aw ay. *
NO
TEDama gedue toexc essiv etractive
po wer If
yo up ullaway sharpl y,thet ractiv epower
ma ybet oo high and thev ehicles could be
damaged. #
Pull away slowl yand smoo thly. To
wing avehicle wit hthe front or rear axle
ra ised *
NO
TEDama gewhen thei gnition is
switched on If
yo ul eave thei gnition switched on when
to wing thev ehicle wit hthe front or rear axle
ra ised, ESP ®
actuation can damag ethe brake
sy stem. #
The ignition mus tbeswitched off. *
NO
TEDama gedue toincor rect remo val
or ins tallation of thep ropeller shafts When ins
talling thep ropeller shafts, they can
be damaged if youdon otuse ne wscrew s.
Alw aysu se ne wscrew sw hen ins talling the
propeller shafts.
Onl yhave thep ropeller shafts ins talled or
re mo vedbyq ualified, skilled personnel. 238
Breakd owna ssis tance
%
If
th ef ront axle is damaged, raise thev ehicle
at thef ront axle and if ther ear axle is dam‐
aged, raise thev ehicle at ther ear axle.
% Ve
hicles with automatic transmission
and rear-wheel drive: ifth er eisam alfunc‐
tion, thea utomatic transmission ma ybe
loc kedinp osition 005D.
If th ea utomatic transmission cann otbe shif‐
te dtop osition 005C,transpor tthe vehicle
(/ page239). Atow ing vehicle wit hlifting
equipment is requ ired forv ehicle transport. #
Obser vethen otes on permissible towing
me thods (/ page236). #
The propeller shafts tothed rive axles must
be remo vedift he maximum permissible tow‐
ing dis tance is exceeded. #
Vehicles with automatic transmission:
shif tthe automatic transmission toposition
005C. #
Release thep arking brake. #
Switc hoffthei gnition. Loading
thev ehicle fort ransport #
Obser vethen otes on permissible towing
me thods (/ page237,238). #
Connect thet ow bar tothet ow ing eyetol oad
th ev ehicle. #
Vehicles with automatic transmission:
shif tthe automatic transmission toposition
005C.
% Ve
hicles with automatic transmission: in
th ee vent of damag etothe electrics, the
automatic transmissio nmaybe loc kedin
position 005D.Toshifttop osition 005C,provide
th eo n-boar delectrical sy stem wit hpower
( / pag e231). #
Load thev ehicle ont othe transpor ter. #
Vehicles with automatic transmission:
shif tthe automatic transmission toposition
005D. #
Use thep arking brak etosecurethe vehicle
agains trolling away. #
Only secur ethe vehicle bythew heels. Ve
hicles with all-wheel drive/vehicles with
automatic transmission #
Mak esuret hat thef ront and rear axle scome
to rest on thes ame transpor tatio nv ehicle.
* NO
TEDama getothed rive trai ndueto
incor rect positioning #
Do no tpositio nthe vehicle abo vethe
connection point of thet ranspor tvehi‐
cle. *
NO
TEVehicle damag eduetoimproper
loading An all-wheel driv
evehicle ma ybedamaged if
it is tilted, pushed or mo vedw hile being loa‐
ded using ahydraulic plat form. #
When loading avehicle wit hall-wheel
drive, thev ehicle should onl ybemoved
and positioned byits ownp owe r. #
The vehicle and thes urface it is posi‐
tione dons hould no longer be mo ved
when thek eyisremo vedorift he door
is open. To
wing eyes torage location The
towing eyeisl ocated in thev ehicle tool kit in
th ef ront-passen gerfootwell (/ page241). Breakdown assi
stance 239
canno
tacce ptresponsibility fort his type of dam‐
age.
Alw ayso bser vethem aximum permissible speed
specified fort he summer tires youh ave installed
(/ page257).
Onc eyou ha veinstalled thes ummer tires:
R Chec kthe tir epressur e(/pag e246)
R Restar tt he tir epressur emonitor
(/ page252) Information on M+S tires
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.
Onl ythese tires will allo wdriving saf etys yst ems
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 ave installed
(/ page257).
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 Chec kthe tir epressur e(/pag e246)
R Restar tt he tir epressur emonitor
(/ page252) Note
sons nowc hains &
WARNING Risk of accident du etoincor‐
re ct ins tallation of sno wchains
Ve hicles with rear-wheel drive: ifyo uh ave
ins talled sno wchains tothef ront wheels,
th ey ma ydraga gains tthe vehicle body or
ch assis components.
This could cause damag etothevehicle or the
tires. #
Neverins tall sno wchains on thef ront
wheels. #
Onlyins tall sno wchains on ther ear
wheelsinp airs. #
Vehicles with twin tires: installthe
sno wchains totheo uter wheels. &
WARNING Risk of accident du eto
unsuitable sn ow chains
Ve hicles wit hall-wheel driv edonothave suf‐
fi cient clea rance on thef ront axle forc om‐
mercial lyavailable sn ow chains.
When youi nstall commerciall yavailable sn ow
ch ains ,the sno wchains ma ycom eloose and
damag echassi scomponent sorbrake hoses. #
Only ins tall sno wchains appr ovedby
Mercedes-Benzf orthese tires. Fo
rs afet yr easons, Mercedes-Benz recommends
th at youo nlyu se sn owchains that ha vebeen
ch eckeda nd appr oved.Youc an obtain informa‐
tio na bout sn ow chains from an yqualified spe‐
cialis tworks hop.
* NO
TEDama getothew heel trim from
mounted sno wchains If sno
wchains are mounted tosteel wheels,
th ew heel trims can be damaged. #
Remo vethew heel trims of steel wheels
befor emounting sno wchains. Obser
vethef ollowing no tesw hen using snow
ch ains:
R Snow ch ains ar eonlyp ermissible forc ertain
wheel/tir ecombinations .You can obtain
information on them at aqualified specialist
wo rkshop.
R Fors afet yr easons, onl yuse sn owchains that
ha ve been specifically appr ovedfor your vehi‐
cle byMercedes-Benz, or sno wchains with
th es ame quality standard.
R The sn owchains mus tberetightene dafter
driving appr oximatel y0.6 miles (1 km). This is
th eo nlyw aytoensur ethe sno wchains are
optimall yseated wit hclearanc etoadjacent
components.
R Vehicles with all-wheel drive: install snow
ch ains tothew heels on ther ear axle. On
ve hicles wit htwin tires, ins tallth es now
ch ains totheo uter wheels. Obser vethem an‐
ufacturer's ins tallation instructions. Wheels and tires
245
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
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