2020 MERCEDES-BENZ S-CLASS sensor

No
teso nc leaning andcareA voiding vehicl edamag e
Ext erior lighting
Cleanthel enses withaw etspong eand mildcle ani ng agent,
e.g .car sha mpoo. Onl
yusecleaning agents orcleaning clothst hat ares uitable
fo rp last ic lens es.
Sensor s
Cleanthes ensor sint he front and rear bum perand inthe
ra diat orgrill wit has oftc loth and carsham poo. When
usingap owerwashe r,maint ainam inimum distance of
11 .8 in(30 cm).
Re ar vie wc amer a
and 360°Camer a R
Open thec amer acover wit hthe multimedia sys‐
te m(/ page243) .
R Use cleanwater andas oftc loth tocle an thec amer alens. Do
notu se ap owe rwashe r.
Ta ilpip es
Cleanwithac leaningagent recomme ndedforM ercedes-
Benz, especiallyin thew inter and afte rw ashi ngthev ehicle. Do
notu se acidic cleaning agents. No
teso nc areo fthe interior &
WARNIN GRisk ofinju ryfrom plastic
par tsbreakin goffafte rt he use ofsol‐
ve nt-ba sedcareprodu cts
Ca reand cleanin gproduc tscon tainin gsol‐
ve nts can causesurfaces inthec ockpit to
become porous. When
thea irbags ared eplo yed, plas ticpar ts
ma ybreak away. #
Donotu se anyc areo rcleani ng prod ‐
ucts containing solvents tocle an the
coc kpit. &
WARNIN GRisk ofinju ryor deat hfrom
bleac hedseat belts
Bleac hingordyeing seat belts canseverely
we aken them.
This can, fore xamp le,caus eseat belt sto
te ar or failin an acc ident . #
Neverb lea ch ordyes eat belts. 422
Maintenance andcare

allo
wthe TPMS tocontinu etof unction prop‐
er ly. The
system checks thet irep ressur eand thet ire
te mp eratur eofthe tires installed onthev ehicle
by means ofat irep ressu resensor .
Ne wt irep ressur esensor s,e.g. inwint ertires,
ar ea utomaticall ytaught -indur ing thef irst jou r‐
ne yt heya reused.
The tirep ressur eand thet iret em per atur e
appear inthem ultifunc tiondispla y
(/ page452).
If th er ei sas ubstantia lpress urel osso rift he
tir et em per atur eise xcessiv e,youw illbe warned
in thef ollo wing ways:
R Viad ispla ymessag es(/ page535)
R Viat he 0077 warning lam pint he instrument
clus ter( /pag e554)
The tirep ressu remonit oring system isonl yan
aid. Itis thed rive r's responsibili tyto setthe tire
pr essur etot he recomme ndedcoldtirep ress ure
su itab lefort he oper ating situation. Setthe tire
pr essur efor cold tires using atirep ressu re ga
ug e. No tethat thec orrect tirep ress uref or the
cur rent operati ng situa tionm ustfirst be taught -
in to thet irep ressur emonit oring system.
In mos tcases, thet irep ressur emonit oring sys‐
te mw illa utom atical lyupd atet he newr efer enc e
va lues afte ry ou have chang edthet irep ressur e.
Yo uc an,h ow ever,a lso updat ethe refere nce val‐
ues byrestar tin gt he tirep ressur emonit oring
sy stem manuall y(/ pag e453).
Sy stem limit s
The system maybeimp aired orma ynotfunc tion
in thef ollo wing situations:
R The tirep ressur ehasbeen setinc orrectl y
R The reisas udden pressur eloss caused, for
ex am ple, byaforeign object penetratin gthe
tir e
R Ther eisam alfu nctio ncausedb yanother
ra dio signal source
Be suretoa lso paya ttent ion tothef ollo wing
re lat ed topic:
R Noteso ntirep ressur e(/pag e448) Che
ckingt he tirep ressur ewitht he tirep res‐
sur em onitoring system
Re quirement s:
R The ignit ionisswitc hedon.
On- boar dcom put er:
4 Service 5
Tires
One ofthef ollo wing displa ysappear s:
R Cur rent tirep ress ureo feachw heel: R
Tire pres sure willbedisplayed afterdriv inga
few minutes
R Tire Pres sure MonitorA ctive:t heteac h-in
pr oce ssofthes ystemi snotyetc omple te. 452
Wheels andtires

Obser
vethef ollo wing when selecting, installing
and replacing tires:
R Onlyusetires and wheels ofthes ame type
(summer tires, wint ertires, MOEx tende d
tir es) and thes ame make.
R Onlyins tal lw heels ofthes ame sizeonone
axle (leftand right).
It is onl ypermissible toins tallad iffe re nt
wh eelsizei nt he eve ntofaflat tirei no rder
to drivet ot he specialis tworks hop.
R Onlyins talltir es ofthec orrect size ontothe
whee ls.
R Vehicl eswith atirep ress urem onit oring
sy stem: Allinstalled wheels mustbee quip‐
ped withfunc tion ingsensorsfor thet ire
pr essur emonit oring system.
R Attemp eratur esbelo w45°F(7° C), use win‐
te rt ires orall-seaso ntirem arke dM +Sfora ll
whee ls.
Wi nter tires bearing the004D snowflak es ym‐
bol inaddition totheM +Smar king prov ide
th eb estp ossible grip inwintr yroad condi‐
tions. R
ForM +Stires, only usetires wit hthe same
tr ead.
R Obser vethem aximum permissible speedfor
th eM +Stires installed.
If th is isbelo wthe vehicle's maximum speed,
th is mus tbeindic ated byan appr opriate
label inthed rive r's field ofvision.
R Break inne wt ires atmoder ates peeds for
th ef irst 60 miles( 10 0k m).
R Replace thet ires afte rs ixyearsa tthe latest,
re ga rdless ofwe ar.
R Wh enreplac ingwith tires that donotfea‐
tu re run-flat charact eristics :ve hicles with
MOExt ended tires aren otequipped witha
TIREFIT kitatthef act ory. Eq uipt he vehicle
wit haT IREFIT kitafte rr eplacing withtires
th at do notfeatur erun- flat charact eristic s,
e.g .winter tires.
Fo rm orei nfor mation onwhee lsand tires, con‐
tac taq ualifiedspec ialistworks hop.
Be suretoa lso obse rvet he follo wing further
re lat ed subje cts:
R Noteso ntirep ressur e(/pag e448) R
Tire and Loadi ngInfo rm atio nplacar d
(/ page454)
R Tire size designation, load-bearing cap acity,
spe edrating andload index(/ pag e462)
R Tire pressur etable (/page449)
R Noteso nthe emer gency sparewheel
(/ page477) No
teso nrotating whee ls &
WARNIN GRisk ofinju rythro ugh differ‐
ent whee lsizes
Int erch ang ingthef ront and rear wheels ifth e
wheels ortires have differe nt dimens ions
ma yseve rely im pa irth ed riving charact eris‐
tic s.
The wheel brak es orwheel suspension com ‐
pon entsm ayalso bedamag ed. #
Rotate front and rear wheels onlyifth e
wheels andtires areo fthe same dimen‐
sions. Wheels
andtires 469

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
0049 Malfunct ionSee Opera-
tor’s Manual *T
heexterior lighting ismalfunct ioning. #
Consult aqualif iedspec ialistworks hop.
0049 Automatic HeadlampMode
Inoperative *T
helight sensor ismalfunctionin g. #
Consult aqualif iedspec ialistworks hop.
0049 Act ive Headla mpsInopera-
tive *T
heactiv eheadla mpsaremalfunctioning. #
Consult aqualif iedspec ialistworks hop.
0049 Switch OnHeadla mps *Y
ouared riving without low- beam headlam ps. #
Turn thel ight switc htot he 0058 or0058 position. Displa
ymessag esand warning/ indic ator lam ps 499

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
If th ed ispla ymessag edoes notd isappear : #
Pull overand stop thev ehicle safely assoon aspossible, paying attention toroad and traf ficc ondi tions . #
Clea nt he windshield .
Blind SpotAssist Currently
Unavailabl eSeeOperator 's
Manual *B
lind SpotAssisti st em por arilyu navailable.
The system limits have been reac hed (/page256). #
Driveo n.
On ce thec ause ofthep roblem isno long erpresent ,the system will beavailable again.
or #
Ifth ed ispla ymessag edoes notd isappear ,stopt he vehicle inaccor dance withthe traffic con dition sand restar t
th ee ngine. #
Ifneces sary,cle an ther ear bum per.Ift he bum perisespecially dirty,t he sensor sint he bum permaybem al‐
func tioning.
Blind SpotAssist Inopera-
tive *B
lind SpotAssisti sm alfun ctionin g. #
Consult aqualif iedspec ialistworks hop.
Act ive Blind SpotAssist
Currently UnavailableSee
Operator's Manual *A
ctiv eBlind Spo tAssististemp orarily una vailable.
The system limits have been reac hed (/page256). #
Driveo n.
On ce thec ause ofthep roblem isno long erpresent ,the system will beavailable again.
or Dis
playm essag esand warning/ indic ator lam ps 523

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions #
Driveo ncarefull y. #
Con sult aqualif iedspec ialistworks hop immediat ely.
Active BrakeAssi stFunc-
tio ns Curre ntly LimitedS ee
Ope rator' sM anual *
Ve hicl eswith theD riving Assis tance Packag e:Ac tiveB rake Assi stwit hc ross- traf ficf uncti on,Evasi ve Steer ing
Assis torP RE‑S AFE®
PL US aret em por arily una vailable oronl ypartiall yavailable.
Ve hicl eswithout theD riving Assis tance Packag e:Ac tiveB rake Assi stistemp orarily una vailable oronl ypartiall y
av ailable.
The ambie ntcon dition sareout side thes ystem limits (/page205). #
Driveo n.
As soon asthea mbient conditions arew ithin thes ystem limits, thes ystemw illbecome available again. #
Ifth ed ispla ymessag edoes notd isappear ,stopt he vehicle inaccor dance withthe traffic con dition sand restar t
th ee ngine.
Act ive Brak eAssist Func-
tion sLimited SeeOpera-
tor' sM anual *
Ve hicl eswith Drivin gAssistanc ePacka ge:Ac tiveB rake Assi stwit hc ross- traf ficf uncti on,Evasi ve Steer ing
Assis torP RE‑S AFE®
PL US ismalfunct ioning.
Ve hicl eswithout Drivin gAssistanc ePacka ge:Ac tiveB rake Assi stismalfun ctionin g. #
Consult aqualif iedspec ialistworks hop.
Rada rSensors DirtySee
Operator's Manual *T
heradar sensor system ismalfunct ioning.Possible causes:
R Dirtonthe sensor s
R Hea vyrain or sno w
R Extende dcountr yd rivi ng without other traf fic, e.g. inthed eser t Displa
ymessag esand warning/ indic ator lam ps 53
1

Ti
re pres sur em onitor Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
Tire Press. MonitorCur-
rent lyUnavailable *T
her eisinter fere nce from apowe rful radio signal source.Asaresult, nosignals from thet irep ressur esensor sare
being recei ved. The tirep ressur emonit oristemp orarily una vailable. #
Driveo n.
The tirep ressur emonitor will restar ta utomat icallyassoon asthec ause hasbeen rectif ied.
Tir eP ress. Moni torInope ra-
tive *T
hetirep ressur emonit orismalfunctionin g. &
WARNIN GThe reisar isk ofan acci dent ifth et irep ressur emonit oring system ismalfunct ioning
If th et irep ressur emonit oring system ismalfunct ioning,itis no ta ble toissue awarning ifth er ei sp ressur eloss
in one ormor eofthe tires.
Un der inflated tires ma y,fore xamp le,impair thed riving, steer ing and braking charact eristic s. #
Have thet irep ressur emonit oring system checkeda taq ualifiedspec ialistworks hop. #
Consult aqualif iedspec ialistworks hop.
Tire Pressure MonitorInop-
erative NoWheel Sensors *T
hewheels installed donoth ave suitable tirep ressur esensor s.The tirep ressur emonit orisdeactiv ated. #
Installwheels withs uitable tirep ressur esensor s. Disp
laym essages and warning/ indic ator lam ps 535

Disp
laym essag es
Possible causes/conseq uencesand0050 0050
Solutions
0077 Wheel Sensor(s) Missing *T
her eisn osignal from thet irep ressur esensor ofone ormor ewheels. Nopressur evalue isdispla yedf or thea ffec‐
te dt ire. #
Have thef aulty tirep ress ures ensor replaced ataq ualif iedspec ialistworks hop.
0077 Check Tires *T
hetirep ressur eino neormor etires has dropped significantl y.The wheel position isdispla yed. &
WARNIN GRisk ofan acci dent duet oinsuf ficie nttirep ress ure
Ti re pressur esthat aret oo lowp ose thef ollo wing hazar ds:
R The tires ma yburst,e speciall yasthe load andvehicle speed increase.
R The tires ma yw ear excessiv elyand/or unevenly, whic hmaygreatl yimp air tiret raction.
R The drivin gchar acteristics, aswellas steer ing and braking, maybeg reatl yimp aired.
Yo uc ouldthen lose control of thev ehicle. #
Obser vether ecom mende dtirep ress ure. #
Adjus tthe tirep ressur eifn eces sary. #
Stop thev ehicle inaccor dance withthe traffic con dition s. #
Chec kthe tirep ressur e(/pag e448) and thet ires. 536
Displa ymessag esand warning/ indic ator lam ps