2021 MERCEDES-BENZ S-CLASS COUPE tires

#
Using thelug wrenc h,loosen thewheel bolts
on thewheel youwish tochang eby about
on efull turn.Do notuns crew thebolts com‐
ple tely. Po
sition ofjac ksuppor tpoints &
WARNIN GRisk ofinju ryfrom incor rect
pos itioning ofthejac k
If yo udo notposi tionth ejac kcor rectl yat
th eappr opriatejac king point oftheve hicle,
th ejac kcould tipwithth eve hicle raised. #
Onlyposit ionthejac kat theappr opri‐
at ejac king point oftheve hicle. The
base ofthejac kmus tbe position ed
ve rticall yunder thejac king point ofthe
ve hicle. *
NO
TEVehicle damag efrom thejac k If
yo udo notposi tionth ejac kcor rectl yat
th eappr opriatejac ksuppor tpoint ofthe
ve hicle, thejac kcould tipove rwit hth eve hi‐
cle raised. #
The jackis design edexclu sively for
jac king uptheve hicle atthejac ksup‐
por tpoints . #
Take thera tche tou tof thetir e-c hang eto ol
kit and place iton thehe xagon nutofthe
jac kso that theletter s"A UF" arevisible. 390
Wheels andtires

#
Position jack2 atjac ksuppor tpoint 1. #
Turn ratche t3 clockwise untiljac k2 sits
com pletely on jacksuppor tpoint 1and the
base ofthejac klies evenlyon thegr ound. #
Turn ratche t3 unti lth etir eis raised amaxi‐
mum of1.2 in (3 cm) from thegr ound. #
Loosen andremo vethewheel (/page39 1). Re
mo ving awh eel Re
quirement s:
R The vehicle israised.
Mer cedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Yo uco uld other wise failto rec‐
ogni zedangers.
Whe nch ang ingawheel, avoidappl ying anyfo rc e
to thebr ak ediscs, sincethis could impair the
le ve lof com fort when brakin g.
* NO
TEDama getothre adin gfrom dirton
wheel bolts #
Donotplace wheel boltsin san dor on
a dir tysur face. #
Unscr ew theupper mostwheel boltcom‐
ple tely. #
Screw align mentbolt 1intoth eth re ad
ins tead ofthewheel bolt. #
Unscr ew there maini ngwhee lbolts com‐
ple tely. #
Remo vethewheel. Ins
talling ane wwheel Mer
cedes- AMGvehicl es:obse rveth eno tesin
th eSupplement .Yo uco uld other wise failto rec‐
ogni zedangers. Whe
elsand tires 39
1

&
WARNIN GRisk ofacci dent from losing a
whe el
Oil ed, grea sed ordamag edwhe elbol t/whe el
nut thre ads orwheel hub/wheel mounting
bolt thre ads can caus eth ewheel bolts/
wheel nutstocome loose. #
Neveroil orgrease theth re ads. #
Intheeve ntofdama getotheth re ads,
con tact aqu alif ied spec ialistwo rkshop
immediat ely. #
Have thedamag edwheel boltsordam‐
ag ed hub thre ads replaced. #
Donotcon tinue driving. #
Obser vetheinf ormation onthech oice of
tir es (/ page38 4).
Fo rtir es wit haspecif ieddirection ofrotatio n,an
ar ro w on theside wallof thetir eindicat esthe
cor rect dire ction ofrotatio n.Ob serveth edir ec‐
tion ofrotatio nwh en installing. #
Slide thewheel tobe mount edont oth e
align mentbolt andpush iton . &
WARNIN GRisk ofinju ryfrom tight ening
whee lbol tsand nuts
If yo utig hten thewheel boltsorwheel nuts
when theve hicle israised, thejac kcould tip. #
Onlytight enwheel boltsorwheel nuts
when theve hicle ison thegr ound. #
Besureto obser vetheins truction sand
saf etyno teson "Cha nging awheel"
(/ page38 4). #
Forsaf etyre ason s,on lyuse wheel bolts
whic hha ve been approvedby Mer cedes-
Benz andforth ewheel inqu estion .
* NO
TEDama getopaintw orkof thewheel
ri m when screwing onthefirs twh eelbo lt If
th ewheel hastoomuc hpla ywhen screw‐
ing inthefirs twh eelbo lt, thewheel rim pai nt
can bedama ged. #
Press thewheel firm lyag ains tth e
wheel hubwhen screwing onthefirs t
wheel bolt. #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat eduntil they are
fi ng er-tig ht. #
Unscr ew and remo vethealignment bolt. #
Tight enthelas twheel boltuntil itis fing er-
tig ht. #
Lowe rth eve hicle (/page392). Lo
we ring theve hicl eaf te ra wh eelch ang e Re
quirement s:
R The newwheel hasbeen installed
(/ page39 1). #
Tolowe rthe vehicl e:pla cethera tche tont o
th ehe xagon nutofthejac kso that thelet‐
te rs "AB "ar evis ible and turnth era tche tof
th ejac kto thelef t. 392
Wheels andtires

#
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 with
a max imum of59 lb-ft(80 Nm). #
Tight enthewheel boltsevenlyin adi ag ona l
pa tter nin theor der indicat ed1 to5 the
specif iedtight ening torq ue of111 lb-ft
(1 50 Nm). &
WARNIN GRisk ofinju rythro ugh incor‐
re ct tigh tening torq ue
Th ewh eelscou ldcome looseifth ewheel
bolts orwheel nutsareno ttight ened tothe
pr escr ibed tighteningto rq ue. #
Ensu rethat thewheel boltsornuts are
tight ened tothepr escr ibed tightening
to rq ue. #
Ifyo uar eno tsur e,do notmo vethe
ve hicle. Consult aqu alif ied spec ialist
wo rkshop andhave thetight ening tor‐
qu ech eckedimmediat ely. #
Chec kth etir epr essur eof thene wlyins talled
wheel andadjus tit ifnec essar y. #
Vehicl eswith atir epr ess uremonit oring
sy stem: Restar tth etir epr essur emonit oring
sy stem (/ page37 1).
Ex cep tion:thene wwheel isan emer gency
spa rewheel. Emer
gency spar ewheel No
teson theemer gency spar ewheel &
WARNIN GRisk ofacci dent caused by
inc orrect whe eland tiredimensi ons
The wheelor tiresize andthetir etype ofthe
emer gency sparewheel orspar ewheel and
th ewheel tobe replaced maydif fer. The
emer gency sparewheel orspar ewheel can
sign ifican tly im pair drivin gch aract eristic sof
th eve hicle.
To preve nthazardous situa tions: #
Adaptyo ur drivin gst yle accor dinglyand
dr ive car efull y. #
Neverins tallmor eth an oneemer gency
spa rewheel orspar ewheel that dif fers
in size . #
Onlyuse anemer gency sparewheel or
spar ewheel ofadif fere nt size briefly. #
Donotsw itchof fESP ®
. #
Have theemer gency sparewheel or
spar ewheel ofadif fere nt size replaced
at thenear estqu alif ied spec ialistwo rk‐ Wheels
andtires 393

shop.
Thenewwheel mustha ve the
cor rect dimensi ons. Obs
erve thefo llo wing noteson remo ving an
emerg encysparewhee l:
R Beforestow ing theemer gency sparewheel,
mak esur eth er eis no air leftin thetir e.
If neces sary,allo wtheair toescape.
R Torelease airfrom thetir e: remo vethe
va lve cap ofthetir e.
R Press down theme talinse rtin theva lve
using apoint edobje ct,e.g. apen.
R Screw theva lve cap ontoth eva lve.
Obser vethefo llo wing noteson installing an
emer gency sparewheel:
R Chec kth etir epr essur eof theemer gency
spa rewheel installed. Correct thepr essur e
as neces sary.
R The maximum permissible speedwithan
emer gency sparewheel installed is50 mph
(80 km/ h). R
Donotins tallsno wch ains ontheemer gency
spa rewheel.
R Replace theemer gency sparewheel afte rsix
ye arsat thelat est,re ga rdless ofwe ar.
% Ve
hicl eswith atir epr ess uremonit oring
sy stem: Ifan emer gency sparewheel is
ins talled, thetir epr essur emonit oring sys‐
te m canno tfunction reliabl y.Fo ra fe w
minut esafte ran emerg encysparewhee lis
ins talled, thesy stem mayst ill displa yth etir e
pr essur eof there mo vedwheel. Onlyre star t
th esy stem again when theemer gency spare
wheel hasbeen replaced withane wwheel.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(/ page366)
R Tire and Loadi ngInfo rm atio nplacar d
(/ page37 2)
R Tire pressur eta ble (/ page368 )
R Noteson installing tires (/ page38 4) 39
4
Wheels andtires

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
ä Malfunct ionDrive atMax.
50 mph *A
IRMA TICisfunctioning onlytoalimit edextent. The vehicle's handling charact eristic sma ybe affect ed.
* NO
TEThe tires on thefront axle orthefe nde rscou ldbe damag edbylarge steer ing movements #
Avoid larg esteer ing movements whiledr iving andlistenfo rscr aping sounds . #
Ifyo uhear scraping sounds, pulloverand stop theve hicle inaccor dance withth etra ffic con dition s,and
se ta higher vehicle leve lif possible . #
Drive in amann erappr opriatefo rth ecur rent leve l,but donotex ceed 50mph(80 km/h). #
Consult aqu alif ied spec ialistwo rkshop.
¢ Lowering *T
hevehicle leve lma ybe lowe redfo rth efo llo wing reason s:
R Youha ve select edadif fere nt drive pr ogr am.
R Youha ve exceed edthespeed limit.
R Youha ve chang edtheve hicle leve lby pressing thebutt on.
00CC Vehicle Rising *Y
our vehicle isadjus tingtotheleve lyo uha ve select ed. 430
Displa ymessag esand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
00CC Drive MoreSlowly *Y
ouaredr iving toofast forth eselect edvehicle leve l. #
Toadjus tth eve hicle leve l,yo umus tno tdr ive at spee dsgrea terth an 50 mph(80 km/h).
00CC Stop Vehicle VehicleToo
Low *Y
ouhave pulled away despit eth eve hicle leve lbeing toolow. #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions.
The vehicle willberaised totheselect edvehicle leve l. #
Waitunt ilth edispla ymessag edisappear sbef orepulling away.
If th edispla ymessag edoes notdisappear andawa rning tone also sou nds, AIRMATIC isma lfunctio ning: #
Donotdr ive at spe edsgr ea terth an 50 mph(80 km/h) andconsult aqu alif ied spec ialistwo rkshop immediat ely.
* NO
TEThe tires on thefront axle orthefe nde rscou ldbe damag edbylarge steer ing movements #
Avoid larg esteer ing movements whiledr iving andlistenfo rscr aping sounds . #
Ifyo uhear scraping sounds, pulloverand stop theve hicle inaccor dance withth etra ffic con dition s,and
se ta higher vehicle leve lif possible . #
Seta higher vehicle leve l(/ page17 6).
Dep endingonthemalfunct ion,theve hicle willberaised. Disp
lay mess ages and warning/ indic ator lam ps 43
1

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Tire Pressure MonitorInop-
erative NoWheel Sensors *T
hewheels installed donotha ve suit able tirepr essur esensor s.The tirepr essur emonit orisdeactiv ated. #
Installwheels withsuit able tirepr essur esen sors.
0077 Wheel Sensor(s )Missin g *T
her eis no signal from thetir epr essur esensor ofone ormor ewheels. Nopressur eva lue isdispla yedfo rth eaf fec‐
te dtir e. #
Have thefa ulty tirepr ess uresen sor replaced ataqu alif ied spec ialistwo rkshop.
0077 Check Tires *T
hetirepr essur ein one ormor etir es has dropped significantl y.The wheel position willbedispla yed. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
R The tires can burst.
R The tires can wearexc essiv elyand/or unevenly.
R The driving charact eristic sas wellas thesteer ing and braking maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ures. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir epr essur e(/ page366) andthetir es. Displa
ymessag esand warning/ indic ator lam ps 44
7