2019 MERCEDES-BENZ CLA COUPE sensor

a
cor respon dingwarn ingmes sage willappear in
th emult ifunction display.
You canrecogn izethetir epres sure losswarn ing
by theRun FlatInd icator Active Press Run
FlatInd icator Active Press
'OK ' 'OK
'to to
Res tart Res
tartmes sage inthemult ifunction
display intheSer v. Ser
v.men u.Infor mat iononthe
mes sage display canbefoun din the"Rest arting
th etir epres sure losswarn ing"sec tion
(Y page 297).
Imp ortant safety notes The
tirepres sure warn ingsyst emdoes notwarn
you ofan incorrect lyset tirepres sure.Obse rve
th eno teson therec omm endedtirepres sure
(Y page 293).
The tirepres sure losswarn ingdoes notrepl ace
th enee dto reg ularly check thetir epres sure.An
even lossofpres sure onsev eral tires atthe
same timecan notbe det ectedbythetir epres -
sure losswarn ingsyst em.
The tirepres sure monitoris no table towarn you
of asudden lossofpres sure,e.g .if th etir eis
pen etrat ed byafor eign object .In theeven tof a
sudden lossofpres sure,brin gth eveh icle toa
halt bybrak ingcarefully. Avoid abrupt steeri ng
mov emen ts.
The function ofthetir epres sure losswarn ing
syst emislimit edordelayed if:
R snow chains aremoun tedon your vehicle's
tir es.
R road condition sare wint ry.
R you aredrivingonsan dor grav el.
R you adopt aver yspor tydriv ingstyle (corner-
ing athigh spee dsordriv ingwith high ratesof
acc eler ation).
R you aredrivingwith aheav yload (intheveh i-
cle oron theroo f)
Rest artin gth etir epr essu reloss warn-
ing syst em Rest
artthetir epres sure losswarn ingsyst emif
you have :
R ch ang edthetir epres sure
R ch ang edthewheels ortires
R moun tednew wheels ortires
X Bef ore restarting,mak esure that thetir e
pres suresare setprop erlyonallfour tires for
th eres pec tiveoper atingcon dition s.
The recomm endedtirepres sure canbefoun d
on theTire andLoadi ngInfor mat ionplacar d on
theB- pillar .Add ition ally, atir epres sure
tab leisatt ach edtothefuel fillerflap. Thetire
pres sure losswarn ingsyst emcan onlygive
reliab lewarn ingsif you have setthecor rect
tir epres sure.If an incorrect tirepres sure is
set ,th ese incorrect values willbemon itored.
X Als oobse rveth eno tesin thesec tionon tire
pres sures(Y page 293).
X Mak esure that theSm artKey isin posit ion0048
in theign ition lock(Y page 123).
X Pres s0059 or0065 onthest eeri ngwheel to
selec tth eSer v. Ser
v.men u.
X Pres sth e0063 or0064 buttontoselec t
Tir ePre ssure Tir
ePre ssure.
X Pres sth e0076 button.
The Run FlatInd icator Active Press Run
FlatInd icator Active Press
'OK 'to Restart 'OK
'to Restartmes sage appear sin the
mult ifunction display.
If you wish toconfir mtheres tart:
X Pres sth e0076 button.
The TirePre ssureNow OK? Tir
ePre ssureNow OK?message
appear sin themult ifunction display.
X Pres sth e0063 or0064 buttontoselec tYes Yes
.
X Pres sth e0076 button.
The Run FlatInd icator Restarted Run
FlatInd icator Restarted mes-
sage appear sin themult ifunction display.
Af tera te ach -inperi od,thetir epres sure loss
warn ingsyst emwill mon itorth eset tirepres -
sure sof all four tires.
If you wish tocancel theres tart:
X Pres sth e0038 button.
or X Ifth eTir ePre ssureNow OK? Tir
ePre ssureNow OK?message
appear s,pres sth e0063 or0064 buttonto
selec tCan cel Can
cel.
X Pres sth e0076 button.
The tirepres sure values store dat thelast
res tartwill continue tobe mon itored. Tir
epr essu remon itor(Cana daonly)
Gener alnot es If
atir epres sure monitoris ins tall ed, theveh i-
cle 'swheels havesensorsth at mon itorth etir e
pres suresin all four tires. The tirepres sure mon-
ito rwarn syou ifth epres sure dropsin on eor
mor eof thetir es. The tirepres sure monitoron ly
fun ction sif th ecor respon dingsen sorsare
ins tall ed inall wheels . Tir
epr essur e
297Wh eels andtires Z

halt
bybraking carefully. Avoidabrupt steering
movement s.
The tirepressure monitorhasayellow warning
lamp inthe instrumen tcluster forindicating
pressure lossoramalfunction. Whetherthe
warning lampflashes orlights upindicates
whether atire pressure istoo low orthe tire
pressure monitorismalfunctionin g:
R ifthe warning lampislit cont inuously ,the tire
pressure onone ormore tiresissignificantly
too low. Thetirepressure monitorisnot mal-
funct ioning.
R ifthe warning lampflashes foraround a
minute andthen remains litconst antly, the
tire pressure monitorismalfunctionin g.
In addition tothe warning lamp,amessage
appea rsinthe multifunction display.Observe
the information ondisplay messages
(Y page 213).
It may take uptoten minutes foramalfunction
of the tire pressure monitortobe indicated. A
malfunction willbeindicated bythe tire pres-
sure warning lampflashing forapproximately
one minute andthen remaining lit.When the
malfunction hasbeen rectified, thetire pressure
warning lampgoesoutafter afew minutes of
driving.
The tirepressure valuesindicated bythe on-
board computer maydiffer fromthose meas-
ured atagas station withapressure gauge.The
tire pressures shownbythe on-board computer
refer tothose measured atsea level. Athigh
altitudes, thetire pressure valuesindicated bya
pressure gaugearehigher thanthose shown by
the on-board computer. Inthis case, donot
reduce thetire pressures.
The operation ofthe tire pressure monitorcan
be affected byinterfer encefromradio transmit -
ting equipment (e.g.radio headphones, two-way
radios) thatmay bebeing operated inor near the
vehicle.
Checking thetire pressur eelec troni-
cally X
Make surethattheSmartKey isin position 0048
in the ignition lock(Ypage 123).
X Press 0059or0065 onthe steering wheelto
select theServ. Serv.
menu. X
Press the0063 or0064 button toselect
Tire Pressure Tire
Pressure.
X Press the0076 button.
The current tirepressure ofeach tireisshown
in the multifunction display.
If the vehicle wasparked forlonger than
20 minutes, theTire pressure willbe Tire
pressure willbe
displayed afterdriving afew minutes displayed
afterdriving afew minutes
message isshown.
Aft erateach-in process, thetire pressure mon-
itor automatically detectsnewwheels ornew
sensors. Aslong asaclear allocation ofthe tire
pressure valuetothe individua lwheels isnot
possible, theTire Tire
Pressure Pressure
Monitor Monitor
Active Active
message isshown instead ofthe tire pressure
display .The tirepressures arealready being
monitored.
If an emergency sparewheel ismounted, the
system maycontinue toshow thetire pressure
of the wheel thathasbeen removed forafew
minutes. Ifthis occurs, notethatthevalue dis-
play edfor the position wherethespare wheel is
fitted isnot thesame asthe current tirepres-
sure ofthe emergency sparewheel.
Tire pressur emonitor warning mes-
sages If
the tire pressure monitordetectsapressure
loss inone ormore tires,awarning message is
shown inthe multifunction display.The yellow
tire pressure warninglampthenlights up.
R Ifthe Please Correct TirePressure Please
Correct TirePressure
message appearsinthe multifunction display,
the tire pressure inat least onetireistoo low.
The tirepressure mustbecorrect edwhen the
opportunity arises.
R Ifthe Check TirePressure Check
TirePressure message
appea rsinthe multifunction display,the tire
pressure inone ormore tireshasdropped
significantly. Thetires must becheck ed.
R Ifthe Tire Tire
Pressure Pressure
Warning Warning
Tire Tire
Fail‐ Fail‐
ure ure
message appears,the tire pressure inone
or more tireshasdropped suddenly. Thetires
must becheck ed.
Observe theinstruct ionsandsafety notesinthe
display messages inthe "Tires" section
(Y page 213).
If the wheel positions onthe vehicle arerotated,
the tire pressures maybedisplay edfor the
wrong positions forashort time.Thisisrectified
after afew minutes ofdriving, andthetire pres-
sures aredisplay edfor the correct positions. Tire
pressure
299Wheelsandtires Z

bolts
tocome loose. Asaresult, youcould
lose awheel whiledriving .There isarisk of
acciden t.
Never oilorgrease wheelbolts.Inthe event of
damage tothe threads, contact aqualified
specialist workshopimmediately. Havethe
damaged wheelboltsorhub threads
replaced/r enewed.Donot continue driving . G
WARN
ING
If you tight enthe wheel boltsorwheel nuts
when thevehicle israised, thejack could tip
over. There isarisk ofinjury.
Only tightenthe wheel boltsorwheel nuts
when thevehicle ison the ground.
Always payattention tothe instruct ions and
safety notesinthe "Changing awheel" section
(Y page 310).
Only usewheel boltsthathave been designed
for the wheel andthevehicle. Forsafety rea-
sons, Mercedes -Benzrecom mends thatyou
only usewheel boltswhich havebeen approved
for Mercedes -Benzvehicles andtherespect ive
wheel.
! To
preven tdamage tothe paintwor k,hold
the wheel securely againstthewheel hub
while screwin gin the first wheel bolt. X
Clean thewheel andwheel hubcontact sur-
faces.
X Place thenew wheel onthe wheel huband
push iton.
X Tighten thewheel boltsuntiltheyarefinger -
tight . Lowering
thevehicle G
WARN
ING
The wheels couldworkloose ifthe wheel nuts
and bolts arenot tight ened tothe specified
tight eningtorque. Thereisarisk ofacciden t.
Have thetight eningtorque immediately
chec kedataqualified specialist workshop
after awheel ischang ed.
X Place theratc hetwrenc hont othe hexagon
nut ofthe jack sothat theletters ABare visi-
ble.
X Turn theratc hetwrenc huntil thevehicle is
onc eagain standing firmly onthe ground.
X Place thejack toone side. X
Tighten thewheel boltsevenly inacros swise
patte rninthe sequence indicated(0043 to0083).
The specified tighteningtorque is96 lb-ft
(130 Nm).
X Turn thejack back toits initial position .
X Stow the jack andtherest ofthe vehicle tools
in the vehicle again.
X Mercedes-
AMGvehicles andvehicles
with AMG Line: usethecover ofthe outer sill.
X Check thetire pressure ofthe newly mount ed
wheel andadjust itifnec essary.
Observe therecom mended tirepressure
(Y page 293).
Canad aonly: aslong asyou aredriving withthe
emergen cyspare wheel mounted,the tire pres-
sure losswarning systemcannotfunc tion relia-
bly. Only restartthe tire pressure losswarning
system whenthedefect ivewheel hasbeen
replaced withanew wheel.
Vehicles withtirepr essure monitor (USA
only): allmount edwheels mustbeequipped
with functioningsensor s. 314
Changing
awheelWheels andtires

Coolan
t
Imp ortant safety notes G
WAR
NING
If ant ifreez ecom esintocon tactwit hhot com -
pon ents intheen gin ecom partmen t,itmay
ign ite.Ther eis aris kof fireand injury.
Let theen gin ecoo ldown before you add anti-
fr eez e.Mak esure that ant ifreez eis no tspille d
ne xt to thefille rne ck.Thor oughl ycle an the
ant ifreez efrom com ponents bef ore start ing
th een gin e.
! On
lyadd coolant that has been premixed
wit hth edesir edant ifreez epro tection .You
coul dot her wise damag eth een gin e.
You canfindaddit ionalno teson thecoo lant in
th efoll owin gplac es:
R in theMer cedes-Ben zSpe cificat ionsfor
Ser vicePro duct s,MB BeV o31 0.1
- on theIn te rn et at
ht tp :/ /be vo.mer cedes-ben z.com
- on theMer cedes-Ben zBeV oapp
R aqualif iedspec ializedwork shop
! Always
useasuit able coolant mixture,eve n
in coun tries wher ehigh temper aturesprev ail.
Ot her wise, theen gin ecoo lingsyst emisno t
suff iciently pro tected from corrosion and
ove rheatin g.
i Hav
eth ecoo lant regularly replaced ata
qualif iedspec ialist workshopand therepl ace-
men tcon firmed intheMain tenan ceBoo klet.
Comp lywit hth eimpo rtant safe tyno tesfor ser-
vic epro duct swhen handlingcoo lant
(Y page 319).
The coolant isamix tureof wate rand corrosion
inh ibit or/ antifreez econ centrate .It perf orms
th efoll owin gtas ks:
R ant i-corr osio npro tection
R ant ifreez epro tection
R rais ingtheboilin gpoin t
If th ecoo lant hasantifreez epro tection down to
-35 ‡(-37 †),theboilin gpoin tof thecoo lant
durin goper ationis appro ximately26 6‡
(13 0†). The
antifreez econ centrate /corr osio ninh ibit or
con centratio nin theen gin ecoo lingsyst em
sho uld:
R be atleast 50%. This willprotect theen gin e
coo lingsyst emagain stfreez ing down to
appro ximately-35‡ (-3 7†)
R no tex cee d55 %(ant ifreez epro tection down
to -49‡[ -45 †]).Othe rwise, hea twi llnot be
di ssi pated aseffe ctive ly
Mer cedes-Be nzreco mme ndsacool antorcor-
ros ion inh ibito r/a ntifr eeze conce ntrate in
acco rdance with
MB Specificati ons forServ iceProducts 310.1 .
i Whe
nthe vehicleis first de livere d,itis filled
wi th acool antmixtu retha tensu resadeq uate
anti free zeand anti-corr osion pro tecti on.
i The
coolantische cked with eve rymai nte-
nance intervalat aqu alifi ed spe cialist wo rk-
sho p.
Fi llin gcapa citie s Mode
l Capa
city Merc
edes‑AMG
ve hic les App
rox. 12.6 USqt
(11. 9l) Al
lot her models Approx.
8.2USqt
(7.8 l) Windshi
eldwashe rsystem
Important safetynotes G
WARNING
Windsh ieldwa sher concentrate couldignite if
it comes intocontact withhotengine compo-
nents orthe exhau stsystem .There isarisk of
fire and injury .
Make surethatnowind shieldwa sher con-
centrate isspil led next tothe filler neck.
! Only
MBSummerFi tand MBWinterFit
wa sher fluidshou ldbe mixed together. The
spra ynozzles mayotherwi sebecome
blocked .
Do not use disti lledor de-io nized water. Other-
wis e,the leve lsensor maygiveafals eread ing. Servi
ceproducts andfilling capaci ties
323Techn ical data Z