MERCEDES-BENZ C-CLASS CABRIOLET 2019 Owner's Manual

Six
mar ks1 showwher eth ebar indicat ors
(ar row )ar eint egr ated intoth etir etread. They
ar evisible onceatread depthofappr oximat ely
00CD in(1.6 mm) hasbeen reac hed. No
teson sno wch ains 000A
WARNIN GRisk ofacci dent dueto inc or‐
re ct mou nting ofsno wch ains
If yo uha ve mount edsno wch ains tothefront
wheels, thesno wch ains maydr ag agains t
th eve hicle body orchassis components. This
couldcaus edamag eto theve hicle or
th etir es. 0007
Nevermount snowch ains onthefront
wheels. 0007
Onlymount snowch ains onthere ar
wheels inpair s. 000E
NO
TEDama getothewheel trim from
mount edsno wch ains If
sn ow chains aremoun tedto steel wheels,
th ewheel trims can bedamag ed. 0007
Remo vethewheel trims ofsteel wheels
bef oremount ingsnowch ains . Obse
rveth efo llo wing noteswhen usingsnow
ch ains :
R Snow chains areon lype rm issible forcer tain
wheel/t ire com binat ions.Yo ucan obtain
inf ormat ionabout this from anaut hor ized
Mer cedes -Benz Cent er.
R Forsaf etyre ason s,on lyuse snow chains that
ha ve been specif icallyapproved foryo ur ve
hicle byMer cedes-Ben z,or sno wch ains
wit hth esame qualit yst andar d.
R Ifsn ow chains areins talled, themaximum
per missible speedis30 mph(50 km/h).
R Vehicl eswith Activ ePa rking Assis t:Do
no tuse ActivePa rking Assistwhen snow
ch ains areins talled.
R Vehicl eswith leve lcontr ol:Ifsno wch ains
ar eins talled, onlydr ive at raised vehicle
le ve l.
0009 Youcan deac tivateES P®
to pull away
( 0013 page16 1). Thisall ows thewheels to
spin, achie ving anincr eased driving forc e. Wheels
andtires 37
9

Ti
re pres sur e No
teson tirepr essur e 000A
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntor excess ive tir epr ess ure
Under inflate dor ove rinf late dtir es pose the
fo llo wing risk s:
R The tires ma ybur st,especiall yas the
load andvehicle speed increase.
R The tires ma ywe arexc essiv elyand/or
une venly, whic hma ygr ea tly impair tire
traction .
R The drivin gch aract eristic s,as wellas
st eer ing and braking, maybe greatl y
im pair ed. 0007
Com plywithth ere comme ndedtire
pr ess ureand checkth etir epr essur eof
all tires including thespar ewheel regu‐
lar ly:
R atleas tonce amont h
R when theload chang es R
beforeembar kingon alon gerjour ney
R ifoper ating conditions chang e,e.g .of f-
ro ad drivin g 0007
Adjus tth etir epr essur eas neces sary. Dr
iving with tirepr es su re that istoohigh ortoo
lo w can :
R Sho rten theser vice life of thetir es.
R Cause increased tiredamag e.
R Adverselyaf fect drivi ng charact eristic sand
th us drivin gsaf ety, e.g. due tohydroplaning. 000A
WARNIN GRisk ofan acci dent dueto
insuf ficie nttirepr ess ure
Ti re swit hpr essur eth at istoolow can over‐
heat andburstas are sult.
In addition, they also sufferfr om excessiv e
and/or irre gular wear,whic hcan significan tly
im pair thebr aking proper tiesand thehan‐
dling charact eristic s. 0007
Avoid excessiv elylow tirepr essur esin
all thetir es, including thespar ewheel. Ti
re pressur ewhic his toolow can cause:
R Tire def ectsas are sult ofove rheating
R Impair edhandling charact eristic s
R Irre gular wear
R Incr eased fuelconsum ption 000A
WARNIN GRisk ofacci dent from exces‐
siv etir epr essur e
Ti re swit hexc essiv elyhigh pressur ecan
bur stbecause they aredamag edmor eeasil y
by highw ayfill, po tholes etc.
In addition, they also sufferfr om irre gular
we ar,whic hcan significan tly im pair thebr ak‐
ing proper tiesand thehandling charact eris‐
tic s. 0007
Avoid excessiv elyhigh tirepr essur esin
all thetir es, including thespar ewheel. Ex
cessiv elyhigh tirepr essur ecan result in:
R Incr eased braking distance
R Impaired handl ing charact eristic s
R Irre gular wear 380
Wheelsand tires

R
Impai reddr iving comfort
R Suscep tibilitytodamag e 000A
WARNIN GRisk ofacci dent caused by
re peat eddrop intirepr essur e
If th etir epr essur edr ops repeat edly,th e
wheel, valve or tirema ybe damag ed.
Ins ufficie nttirepr ess urecan causethetir es
to bur st. 0007
Inspect thetir efo rsigns offore ign
obje cts. 0007
Chec kwhe ther thewheel orvalve has a
leak . 0007
Ifyo uar eunab leto rectify thedamag e,
con tact aqu alif ied spec ialistwo rkshop. Yo
ucan find informa tionon tirepr ess urefo rth e
ve hicle's fact or y-ins talled tires on thefo llo wing
labels:
R Tire and Loadi ngInfo rm atio nplacar don the
B‑pil larof your vehicle (0013 page38 7).
R Tire pressur eta ble ontheinside ofthefuel
fi ller flap (0013 page38 1). Obse
rveth emaximum tirepr essur e
(0013 page39 4).
Use asuit able tirepr essur ega ug eto checkth e
tire pres su re.The outerapp earance ofatir e
does notper mit anyre liable conclusion about
th etir epr essur e.
Ve hicl eswith atir epr ess uremonit oring sys‐
te m: Youcan also checkth etir epr essur eusing
th eon- boar dcom puter.
Onl ycor rect tirepr ess urewhe nth etir es are
cold. Condition sfo rcold tires:
R The vehicle hasbeen parkedwit hth etir es
out ofdir ect sunlight forat lea stthre ehour s.
R The vehicle hastrave led less than 1mile
(1 .6 km ).
A rise inthetir ete mp eratur eof 18 °F(10 °C)
incr eases thetir epr essur eby appr ox.10 kPa
(0. 1ba r/1 .5psi ).Ta ke this int oacc ount when
ch ecking thetir epr essur eof wa rm tires .
Th etir epr es su re recomme ndedforincr ease d
loa d/spee din thetir epr essur eta ble can affect
th eride comf ort. 000A
WARNIN GRisk ofacci dent from unsu ita‐
bl e acce ssories on thetir eva lves
If yo umoun tuns uitable accessories onto tire
va lves, thetir eva lves ma ybe ove rloaded and
malfunct ion,whic hcan cause tirepr essur e
loss. Tire pressur emonit oring systems for
re trof itti ng willcau sethetir eva lve to remain
open. Thiscanalsore sult intirepr essur e
loss. 0007
Onlyscr ew standar dva lve caps orvalve
cap sspe cifica llyapprove dby
Mer cedes-Ben zfo ryo ur vehicle onto
th etir eva lve. Ti
re pres sur etab le The
tirepr ess ureta ble ison theinside ofthe
fuel filler flap.
0009 The datasho wnintheimag esisexam ple
dat a. Whee
lsand tires 38
1

The
tirepr essur eta ble showsthere comme nded
tir epr ess urefo rall tires app rove dfo rth is vehi‐
cle. The recomme ndedtirepr ess ures apply for
cold tires und ervarious oper ating condit ions,i.e.
loading and/orspeedoftheve hicle.
If one ormor etir esizes precede atir epr essur e,
th etir epr essur einf ormation follo wing isonl y
va lid forth ose tiresizes.
The load condit ions"partially laden" and"fully
laden" aredef ined intheta ble fordif fere nt num ‐
be rs of passeng ersand amounts oflugg age. The
actual number ofseats maydif ferfr om this. Som
etir epr essur eta bles onlysho wtherim
diame terins tead ofthecom pletetiresize, e.g.
R1 8.The rim dia me teris par tof thetir esize and
can befound onthetir eside wall
(0013 page39 4).
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(0013 page380) R
Tire and Loadi ngInfo rm atio nplacar d
(0013 page38 7)
R Max imum tirepr essur e(0013 page39 4) Chec
kingtirepr essu resmanu ally 0007
Read thetir epr essur efo rth ecur rent operat‐
ing cond itions from theTire and Loadi ng
In fo rm atio nplacar dor thetir epr essur e
ta ble. Obser vetheno teson tirepr essur e. 0007
Remo vetheva lve cap ofthetir eto be
ch ecked. 0007
Press thetir epr essur ega ug esec urelyon to
th eva lve. 0007
Read thetir epr essur e. 0007
Ifth etir epr essur eis lowe rth an there com‐
mend edvalue, increase thetir epr essur eto
th ere comme ndedvalue. 0007
Ifth etir epr essur eis higher than there com‐
mend edvalue, release air.To do so, press
do wn theme talpin intheva lve, e.g. using
th etip ofapen forex am ple. Then checkth e
tir epr es su re again usin gth etir epr essur e
ga ug e. 382
Wheelsand tires

0007
Screw theva lve cap ontoth eva lve.
Fu rther relat ed subje cts:
R Noteson tirepr essur e(0013 page380)
R Tire pressur eta ble (0013 page38 1)
R Tire and Loadi ngInfo rm atio nplacar d
(0013 page38 7) 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 epressu retable, 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 icantlyunder inflated tirecauses thetir e
to ove rheat and canlead totirefa ilur e.
Und erinf lation 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
TPMS malfunct ionindicat oriscombin edwith
th elow tirepr essur eindicat orlam p.When
th esy stem detects amal functi on,theindica‐
to rlamp willfl 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 383

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.
The tirepr essur eand thetir ete mp eratur e
appear inthemultifunc tiondispla y
(0013 page38 4).
If th er eis asubs tantia lpr ess ureloss orifth e
tire temp eratur eis excess ive, youwill bewarned
in thefo llo wing ways:
R viadisp lay messa ges(0013 page455)
R viathe0077 warning lam pin theins trument
clus ter(0013 page480)
The tirepr essu remonit 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 page385).
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 rectl y
R Ifth er eis asudden pressur eloss caused, for
ex am ple, byafo re ign obje ctpene trating the
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 page380) Chec
kingthetir 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 ureand tirete mp eratur eof
th eindividual wheels: R
Tire pressure willbedisplayed afterdriving a
few minutes 38
4
Wheels andtires

R
Tire Pressure MonitorActive: thete ac h-in
pr oce ssofthesy stem isno tye tcomple te.
The tirepr essur esarealr 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 381).Obse rveth e
no teson tirete mp eratur e(0013 page380).
0009 The values 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.
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(0013 page380) Re
star ting thetir epr essur emoni toring sys‐
te m
Re quirement s:
R The recomme ndedtirepr ess ureis cor rectl y
se tfo rth ere spectiv eoper ating status on
eac hof thefo ur wheel s(0013 page38 0).
Re star tth etir epr essur emonit oring system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wlyins talled.
On- boar dcom puter:
0018 Service 0019
Tires 0007
Swipe down wardson Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Use Current Pressures asNew Refer-
ence Values? messageis sho wninthemulti‐
func tion displa y. 0007
Tobegin restar t,pr ess Touc hCon trol on the
lef t-hand sideofthesteer ing wheel.
The Tire Press. MonitorRestart edmessag eis
sho wninthemultifunc tiondispla y. Cur
rent wa rning mess ages aredele tedand
th eye llo w0077 warning lam pgoes out.
Af teryo uha ve been driving fora fe w
minut es,thesy stem checks whe ther thecur‐
re nt tirepr ess ures arewi thin thespecif ied
ra ng e. The current tirepr ess ures areth en
accep tedas refere nce values andmon itor ed.
Mak esur eto obser vethefo llo wing further rela‐
te dsubjec t:
R Noteson tirepr essur e(0013 page380)
Ra dio equipme ntappr oval of thetir epr es‐
sur emoni toring system
Ra dio equipme ntappr oval number s Co
untr yR adiotype approval number
Ca nada IC:2546A -GG4T
IC: 2546A -DG6W2D4
IC: 2546A -MC34MA4
US AF CCID:MRXGG4 T
FCC ID:MRXD G6W2D4
FCC ID:MRXM C34MA4 Whee
lsand tires 385

Fu
rther information onthedeclar ationofcon ‐
fo rm ity forwir eles sve hicle component s
(0013 page26). Ti
re pres sur elo ss wa rning system Fu
nction ofthetir epr essur eloss warning
sy stem
The tirepr essur eloss warning system warnsth e
dr iver by means ofdisp lay messa geswhen ther e
is ase vere tirepr es su re loss.
Af tera ch ang ein tirepr essur e,awheel rotatio n
or atire chang e,or ifyo uha ve re-ins talled
wheels ortires, thetir epr essur eloss warning
sy stem has tobe restar ted(0013 page386 ).
The tirepr essur eloss warning system does not
re place theneed toregular lych eckth etir epr es‐
sur e.
Sy stem limita tions
The system maybe impair edorma yno tfunc tion
par ticular lyin thefo llo wing situat ions:
R Incorrectly settir epr ess ure
R Sud den press urelos scau sed,fo rex am ple,
by afo re ign obje ctpene trating thetir e R
Steady pressur eloss inseveraltir es
The system has are strict ed ordel ayed func tion
par ticular lyin thefo llo wing situat ions:
R Poor ground condit ions,e.g.snowor grave l
R Driving with sno wch ains
R When adoptingave ry spor tydriving style
wit hhigh corner ing speeds orsudden accel‐
er ation
R Drivin gwit hahigh load
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(0013 page380)
R Displa ymessag esabout thetir es
(0013 page455)
Re star ting thetir epr essur eloss warning
sy stem
Re quirement s:
R The recomme ndedtirepr ess ureis cor rectl y
se tfo rth ere spectiv eoper ating status on
eac hof thefo ur wheel s(0013 page38 0). Re
star tth etir epr essur eloss warning system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wlyins talled.
On- boar dcom puter:
0018 Service 0019
Tires 0007
Swipe down wardson theTo uc hCon trol on
th elef t-hand sideofthesteer ing wheel.
The Tire Pressure ControlSystem
Act iveR estart :Press Touch Controlmessag e
is sho wninthemultifunc tiondispla y.
Re star tth etir epr essur eloss warning system in
th efo llo wing situat ions:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wlyins talled. 0007
Tobegin there star t,pr ess theTo uc hCon trol
on thelef t-hand sideofthesteer ing wheel.
The Tire Pressure NowOK?messag eis
sho wninthemultifunc tiondispla y. 386
Wheels andtires

0007
Select Yes. 0007
Toconf irm there star t,pr ess theTo uc hCon ‐
tr ol on thelef t-hand sideofthesteer ing
wheel.
The Run FlatIndic atorRestart edmessag eis
sho wninthemultifunc tiondispla y.
Af teryo uha ve driven fora fe w min utes, the
tir epr es su re loss warning system monit ors
th ese ttir epr essur esofall thetir es.
Be sureto also obse rveth efo llo wing further
re lat ed subje cts:
R Noteson tirepr essur e(0013 page380) Loading
theve hicl e No
teson Tire and Loading Information plac‐
ar d 000A
WARNIN GRisk ofacci dent from overloa‐
ded tires
Ov erloaded tires ma yove rheat and burstas a
con sequenc e.Ov erloaded tires can also
im pair thesteer ing and handling charact eris‐
tic sand lead tobrak efa ilur e. 0007
Obser vetheload-bear ingcapacity of
th etir es. 0007
The load-bear ingcapacity mustbe at
leas thalf thegr oss axle weight rating of
th eve hicle. 0007
Neverove rload thetir es by exc eeding
th emaximum load. The
Tire and Loadi ngInfo rm atio nplacar dis on
th eB-pillar onthedr iver's side oftheve hicle. 1
Tire and Loadi ngInfo rm atio nplacar d 0009
The datasho wnintheillus tration isexam ple
dat a.
The Tire and Loadi ngInfo rm atio nplacar dsho ws:
R Maximum numberofseats 2accor dingto
th emaximum numberofpeople permitt edto
tr ave lin theve hicle.
R Maximum permissible load3com prises the
gr os swe ight ofall vehicle occupants, load
and luggage. Wheels
andtires 38
7

R
Recomme ndedtirepr ess ures 1 forcold
tir es. The recomme ndedtirepr ess ures are
va lid forth emaximum permissible loadand
up tothemaximum permissible vehicle
speed.
Please alsonote:
R Information onper missib lewe ight sand loads
on theve hicle identif ication plate
(0013 page41 1).
R Informatio non tirepr essu reinthetir epr es‐
sur eta ble (0013 page38 1).
Fu rther relat ed subje cts:
R Determ inin gth emaximum permissible load
(0013 page388)
R Noteson tirepr essur e(0013 page380). De
term ining thema xim um permis sible load The
follo wing steps have been developed as
re qu ired ofall manuf acturersunder Title 49,
Co de ofU.S. Feder alRe gulations, Part57 5, pur‐
sua nttothe"N ational Traf fic and MotorVe hicle
Saf etyAc tof 1966". 0007
Ste p1: loca tethest at emen t"The combined
we ight ofocc upant sand load should never
exc eed XXX kgorXXX lbs." ("The combined
we ight ofocc upant sand load should never
exc eed XXX kgorXXX lbs.") onyour vehicle's
Ti re and Loadi ngInfo rm atio nplacar d. 0007
Ste p2: determ ine thecombin edweight of
th edr iver and passeng ersth at will betravel‐
ing inyour vehicle. 0007
Ste p3: subtr act thecombin edweight ofthe
dr iver and passeng ersfrom XXX kgor
XXX lbs. 0007
Ste p4: there sulting figur eeq uals theper‐
missible cargoand luggageload capacity .Fo r
ex am ple: If"XXX "eq uals 1400 lbs and ther e
ar efive occupant sin your vehicle witha
we ight of150lbs eac h,themaximum cargo
and luggageload capacity is650 lbs(1400 -
75 0(5 x15 0) =650 lbs). 0007
Ste p5: determ ine thecombin edweight of
lugg ageand load that theve hicle willbecar‐
ry ing. Forsaf etyre ason s,this we ight mayno t
saf elyexc eed theav ailable cargoand lug‐
ga ge load capac itycalc ulatedinstep 4. Ev
en ifyo uha ve cal cul ated thetot alload care‐
full y,yo usho uld still mak esur eth at themaxi‐
mum permissible gross mass andthemaximum
per missible axleload ofyour vehicle areno t
exc eeded. Details can befound ontheve hicle
identif ication plate. 0007
Have your loaded vehicle –including driver ,
occupants andload –we ighed onave hicle
we ighbr idge.
The measur edvalues mayno texc eed the
maximu mper missi blevalues stat ed on the
ve hicle identif ication plate.
Fu rther relat ed subje cts:
R Calculation exam ple forde term inin gth emax‐
imum load(0013 page389)
R Tire and Loadi ngInfo rm atio nplacar d
(0013 page38 7)
R Tire pressur eta ble (0013 page38 1)
R Vehicle identif ication plate 388
Wheels andtires