TPMS MERCEDES-BENZ S-CLASS COUPE 2019 Owner's Manual

0007
Screw theva lve cap ontoth eva lve.
Fu rther relat ed subje cts:
R Noteson tirepr essur e(0013 page37 5)
R Tire pressur eta ble (0013 page37 7)
R Tire and Loadi ngInfo rm atio nplacar d
(0013 page38 2) Ti
re pres sur emoni toring system Fu
nction ofthetir epr essur emoni toring sys‐
te m 000A
DANG ER Risk ofacc iden tdue toinc or‐
re ct tirepr ess ure
Ev erytir e, incl uding thespar e(if prov ided),
should becheckedwhen coldatleas tonc ea
mont hand inflated tothepr essur ere com‐
mend edbytheve hicle manuf acturer(see
Ti re and Loadi ngInfo rm atio nplacar don the
B-pil laron thedr iver ’s side orthetir epr es‐
sur elabel ontheinside ofthefuel filler flap
of your vehicle). Ifyo ur vehicle hastires ofa
dif fere nt size than thesize indicat edon the Ti
re and Loadi ngInfo rm atio nplacar dor the
tir epr es su re table, youne ed todeterm ine
th epr oper tirepr essur efo rth ose tires.
As anadded safetyfe atur e,your vehicle has
been equipped withatir epr essur emonit or‐
ing system (TPMS) that illumin ates alow tire
pr essur eind icat orlam pwhen oneor mor eof
yo ur tires aresign ifican tly und erinf lated.
Ac cor ding ly,if th elow tirepr essur eindicat or
lam plights up,yousho uld stop and check
yo ur tires assoo nas poss ible, andinflate
th em tothepr oper pressur e.Driving ona
signif icantlyund erinf lated tirecaus esthetir e
to overheat andcanlead totirefa ilur e.
Un der inflation alsoincreases fuelconsum p‐
tion andreduces tiretread life, and may
af fect theve hicle's handling andbraking abil‐
ity .Please note that theTPMS isno ta subs ti‐
tut efo rpr oper tiremaint enance, anditis the
dr iver's responsibili tyto maint aincorrect tire
pr ess ure, eve nif und erinf latio nha sno t
re ac hed theleve lto trig ge rill umina tionof
th eTPMS low tirepr essur eindicat orlam p. Yo
ur vehicle hasalso been equipped witha
TPMS malfunction indicatortoindic atewhen
th esy stem isno toper ating proper ly.The
TPM Smal functi onindicatoris combined with
th elow tirepr essur eindicat orlam p.When
th esy stem detects amal functi on,theindica‐
to rlam pwil lfl ash forapp roxima tely amin ute
and then remain continuously illumina ted.
This sequence willcontinue upon subseq uent
ve hicle star t-ups aslon gas themalfunct ion
ex ists.
When themalfunct ionindicat orisillumina‐
te d, thesy stem mayno tbe able todetect or
sig nal low tirepr ess ureas intende d.TPM S
mal functi onsmayoccu rfo ra va riet yof rea‐
son s,inc ludin gth eins tallation ofinc om pati‐
ble replacemen tor alternat etir es orwheels
on theve hicle that preve nttheTPMS from
func tioningproper ly.
Alw aysch eckth eTPMS malfunct ionwarning
lam paf te rre placing oneormor etir es or
wheels onyour vehicle toensur eth at the
re placemen tor alternat etir es and wheels Wheels
andtires 37
9

allo
wtheTPMS tocontinu eto function prop‐
er ly. The
system checks thetir epr essur eand thetir e
te mp eratur eof thetir es installed ontheve hicle
by means ofatir epr essu resensor .
Ne wtirepr essur esensor s,e.g. inwint ertires,
ar eaut omaticall yta ught -indur ing thefirs tjou r‐
ne yth ey areused.
If th er eis asubs tantia lpr ess ureloss orifth e
tir ete mp eratur eis exc essiv e,youwill bewarned
in thefo llo wing ways:
R viadisp lay messa ges(0013 page450)
R viathe0077 warning lam pin theins trument
clus ter(0013 page47 3)
Th etir epr es su re monit oring system isonl yan
aid. Itis thedr iver's responsibili tyto setth etir e
pr essur eto there comme ndedcoldtirepr ess ure
su itab leforth eoper ating situation .Se tth etir e
pr essur efo rcold tires using atir epr essu re
ga ug e. No tethat thecor rect tirepr ess urefo rth e
cur rent operati ng situa tionmu stfirs tbe taught -
in to thetir epr essur emonit oring system. In
mos tcases, thetir epr essur emonit oring sys‐
te m wil lau tomatical lyupd ateth ene wrefere nce
va lues afte ryo uha ve chang edthetir epr essur e.
Yo ucan ,ho we ver,also updat eth ere fere nce val‐
ues byrestar tin gth etir epr essur emonit oring
sy stem manuall y(0013 page38 1).
Sy stem limita tions
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Ifth etir epr essur eis setincor rectly
R Ifth er eis asudden pressur eloss caused, for
ex am ple, byafo re ign obje ctpene tratin gth e
tir e
R Ifth er eis amalfunct ioncaused byano ther
ra dio signal source
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(0013 page37 5)
Ch ecking thetir epr essur ewit hth etir epr es‐
sur emoni toring system
Re quirement s:
R The ignit ionisswitc hedon. On-
boar dcom puter:
0018 Service 0019
Tires
One ofthefo llo wing displa ysappear s:
R Cur rent tirepr ess ureof each wheel:
R Tire pres sure willbedisplayed afterdriv inga
few minutes
R Tire Pres sure MonitorAc tive: thete ac h-in
pr oce ssofthesy stem isno tye tcomple te.
The tirepr essur ear ealr eady being moni‐
to re d. 0007
Com pareth etir epr essur ewit hth ere com‐
mend edtirepr ess urefo rth ecur rent operat‐
ing cond ition (0013 page 377).Obs erve the
no teson tirete mp eratur e(0013 page37 5).
0009 Theva lues displa yedin themultifunc tiondis‐
pla yma yde viat efrom those ofthetir epr es‐
sur ega ug eas they referto sea leve l.At high
altitudes, thetir epr essur eva lue indic ated by
a pr essur ega ug ear ehigh erthan those
sho wnbytheon- boar dcom puter.In this
case, donotre duce thetir epr essur e. 380
Wheels andtires