2019 MERCEDES-BENZ CLA COUPE fuel pressure

Protecting
theenvironment General
notes H
Environmental
note
Daimler's declaredpolicyisone ofcompre-
hensive environm entalprotect ion.
The object ivesareforthe natural resources
that form thebasis ofour existen ceon this
planet tobe used sparingly andinamanner
that takes therequirements ofboth nature
and humanity intoaccount.
You toocan help toprotect theenvironm ent
by operating yourvehicle inan environm en-
tally responsible manner.
Fuel consumpt ionand therate ofengine,
transm ission,brakeandtirewear areaffected
by these factors:
R operating conditionsof your vehicle
R your personal drivingstyle
You caninfluence bothfactors. Youshould
bear thefollowing inmind:
Operating conditions:
R avoid shorttripsasthese increase fuelcon-
sumption.
R alwa ysmake surethatthetire pressures
are correct .
R do not carry anyunnecessary weight.
R remove roofracks onceyounolonger need
them.
R aregularly servicedvehiclewillcont ribute
to environm entalprotect ion.You should
therefore adheretothe service intervals.
R alwa yshave service workcarried outata
quali fiedspecialist workshop.
Personal drivingstyle:
R do not depress theaccelerator pedalwhen
startin gthe engine.
R do not warm upthe engine whenthevehicle
is stationary.
R drive carefully andmaintain asafe distance
from thevehicle infront .
R avoid frequent, suddenacceleration and
braking. R
change gearingood timeanduseeach gear
only upto00C3 ofits maximum enginespeed.
R switch offthe engine instationary traffic.
R keep aneye onthe vehicle's fuelconsump-
tion. Environmental
concerns andrecom-
mendat ions
Wherever theOperator's Manualrequires youto
dispose ofmaterials, firsttrytoregenerate orre-
use them. Observe therelevant environm ental
rules andregulations whendisposing ofmateri-
als. Inthis way youwillhelp toprotect theenvi-
ronmen t. Genuine
Mercedes-Benz parts H
Environmental
note
Daimler AGalso supplie srecondit ionedmajor
assemblies andparts which areofthe same
quali tyas new parts. Theyarecovered bythe
same Limited Warranty entitlements asnew
parts.
! Air
bags andEmergen cyTensioning Devi-
ces, aswell ascont rolunits andsensors for
these restraint systems, maybeinstalled in
the following areasofyour vehicle:
R doors
R door pillars
R door sills
R seats
R cock pit
R instrumen tcluster
R cent erconsole
Do not install accessories suchasaudio sys-
tems inthese areas. Donot carry outrepairs
or welding. Youcould impair theoperating
efficiency ofthe restraint systems.
Have aftermark etaccessories installedata
quali fiedspecialist workshop.
You could jeopardize theoperating safetyof
your vehicle ifyou useparts, tiresandwheels as
well asaccessories relevanttosafety which
have notbeen approved byMercedes-B enz.This
could leadtomalfunction sin safety-relevant 24
Genuine
Mercedes-Benz partsIntrodu ction

Opening
thefuel filler flap 0043
Toopen thefuel filler flap
0044 Tire pressure table
0087 Toinsert thefuel filler cap
0085 Instruct ionlabel forfuel type tobe refueled
X Switc hoff the engine .
X Remove theSmart Keyfrom theignition lock.
or, invehicles withKEYLE SS-GO start -function
or KEYLE SS‑GO
X Open thedriver's door.
The vehicle electronics arenow inposition
005A. This isthe same asthe Smart Keyhaving
been removed.
X Press thefuel filler flapinthe direct ionof
arrow 0043.
The fuel filler flapswings up.
X Turn thefuel filler capcount er-clockwise and
remove it. X
Inser tthe fuel filler capinto theholder onthe
inside offuel filler flap0087.
X Completely insertthefiller neck ofthe fuel
pump nozzleinto thetank ,hook inplace and
refuel.
X Only fillthe tank untilthepump nozzle
switches off.
i Do
not add anymore fuelafter thepump
stops fillingforthe first time. Otherwise, fuel
may leakout.
Closing thefuel filler flap X
Replace thecap onthe filler neck andturn
clock wiseuntilitengages audibly.
X Close thefuel filler flap.
Close thefuel filler flapbefore lockingthe vehi-
cle.
If you aredriving withthefuel filler capopen, the
00B6 reserv efuel warning lampflashes. Ames-
sage appears inthe multifunc tiondisplay
(Y page 208).
In addition, the00B9 Check Engine warning
lamp maylight up(Ypage 226).
For furth erinfor mation onwarning andindicat or
lamps inthe instrument cluster,see
(Y page 226). Refueling
141Drivingandparking Z

The
ECO display consistsof three section s,with
an inner andouter area.Thesection scorre-
spond tothe following threecategories: 0043
Acce
leration (evaluation ofthe
acceleration processes):
R the outer areafillsupand theinner
area lights upgreen: moderate
acceleration ,especially athigher
speeds
R the outer areaempties andthe
inner areaisgray: sporty acceler-
ation 0044
Coasting
(evaluation ofall decelera-
tion processes):
R the outer areafillsupand theinner
area lights upgreen: anticipator y
driving, keeping yourdistance and
early release ofthe accelerator.
The vehicle cancoast without use
of the brakes.
R the outer areaempties andthe
inner areaisgray: frequent heavy
braking 0087
Constant
(continuous evaluation
over theentir ejourney):
R the outer areafillsupand theinner
area lights upgreen: constant
speed andavoidance ofunneces -
sary acceleration anddeceleration
R the outer areaempties andthe
inner areaisgray: fluctuations in
speed The
three innerareas display thecurrent driving
style andlight upgreen asaresult ofaparticu-
larly econom icaldriving style.Dependin gon the
driving situation, uptotwo areas maylight up
simultaneously.
At the beginning ofthe journey, thethree outer
areas areempty andfillup asaresult ofeco-
nomical driving.Ahigher levelindicates amore
econom icaldriving style.Ifthe three outer areas
are completely filledatthe same time,thedriver
has adopted themost econom icaldriving style
for the selected settings andprevailing condi-
tions. TheECO display borderlightsup.
The ECO display doesnotindicate theactual fuel
consumpt ion.Theadditionally achievedrange
display edunder Bonus fr.Start Bonus
fr.Start doesnot
indicate afixed consumpt ionreduction . In
addition todriving style,theactual consump-
tion isaffect edbyother factors,such as:
R Load
R Tire pressure
R Cold start
R Choice ofroute
R Act ive electric alconsumer s
These factorsare not included inthe ECO dis-
play.
An econom icaldriving stylespecially requires
driving atmoderate enginespeeds.
Achievin gahigher valueinthe categories
"Accelerat ion"and"Constant ":
R observe thegearshift recommendations .
R drive thevehicle indrive program Cor E
(vehicles withaDYNA MICSELECT button ).
On long journeys ataconst antspeed, e.g.onthe
highway, onlytheouter areafor"const ant"will
change.
The ECO display summarizes thedriving style
from thestart ofthe journey toits completion .
Therefore, therearemore marked changes in
the outer areas atthe start ofajourney. Onlon-
ger journeys, therearefewer changes. Formore
marked changes, performamanual rest
(Y page 183).
For more inform ationonthe ECO display ,see
(Y page 182). Br
aking
Import antsafety notes G
WARNIN
G
If you shift down onaslippery roadsurface in
an attempt toincrease theengine's braking
effect ,the drive wheels couldlosetheir grip.
There isan increased dangerofskidding and
accident s.
Do not shift down foradditional enginebrak-
ing onaslippery roadsurface.
Dow nhill gradients !
On
long andsteep gradients, youmust
reduce theload onthe brakes byshiftin gto a
lower gearingood time. Thisallows youto
take advantage ofengine braking. Forthis you
must firstactivate manualgearshifting .This Driving
tips
147Driving andparking Z

X
Press the0064 or0063 button toset Off Off,
Standard Standard
orSensitive Sensitive.
X Press the0076 button tosave thesetting.
When ATTENTION ASSISTisdeactivated, the
00D7 symbol appears inthe multifunc tiondis-
play inthe assistanc egraphics display.
For further informationabout ATTENTION
ASS IST, see(Ypage 173).
<002400460057004C005900440057004C0051004A001200470048004400460057
004C00590044> tingBlind Spot
Assist X
Press the0059 or0065 button onthe steerin g
wheel toselect theDriveAssis t DriveAssis
tmenu.
X Press the0063 or0064 button toselect
Blind SpotAssist Blind
SpotAssist.
X Press 0076toconf irm.
The curren tselection appears.
X To activat e/deactivat e:press the0076 but-
ton again.
For further informationabout BlindSpotAssist ,
see (Ypage 174).
<002400460057004C005900440057004C0051004A001200470048004400460057
004C00590044> tingLane Keeping
Assist X
Press the0059 or0065 button onthe steerin g
wheel toselect theDriveAssis t DriveAssis
tmenu.
X Press the0063 or0064 button toselect
Lane Keeping Assist Lane
Keeping Assist.
X Press 0076toconf irm.
The curren tselection appears.
X Press 0076again toconf irm.
X Press the0064 or0063 button toset Off Off,
Standard Standard
orAdaptive Adaptive.
X Press the0076 button tosave thesetting.
When LaneKeeping Assistisactivat ed,the
multifunc tiondisplay showsthelane mark-
ings asbright linesinthe assistanc egraphic.
For further informationabout LaneKeeping
Assist ,see (Ypage 176). Service
menu
Dependin gon the equipment installedinthe
vehicle, youhave thefollowing optionsinthe
Serv. Serv.
menu: R
Calli ngup display messages inmessage
memory (Ypage 193)
R Restartin gthe tire pressure losswarning sys-
tem (Canada only)(Ypage 297)
R Checking thetire pressure electronically
(USA only)(Ypage 297)
R Calli ngup the service duedate
(Y page 264) Settings
menu
Introdu ction Dependin
gon the equipment installedinthe
vehicle, youhave thefollowing optionsinthe
Sett. Sett.
menu:
R Changing theinstr ument cluster settings
R Changing thelight settings
R Changing thevehicle settings
R Changing theconv enienc esett ings
R Restoring thefactor ysett ings
Instru mentcluster Selecting
thedista nceunit
The Display UnitSpeed-/Odo meter: Display
UnitSpeed-/Odo meter:func-
tion allows youtochoose whether certaindis-
plays appear inkilometer sor miles inthe mul-
tifunc tiondisplay.
X Press the0059 or0065 button onthe steerin g
wheel toselect theSett. Sett.
menu.
X Press the0064 or0063 button toselect the
Instrument Cluster Instrument
Clustersubmenu.
X Press 0076toconf irm.
X Press the0064 or0063 button toselect the
Display UnitSpeed-/Odo meter Display
UnitSpeed-/Odo meterfunction.
You willsee theselected setting: km km
ormiles miles.
X Press the0076 button tosave thesetting.
The selected unitofmeasurement fordistanc e
applies to:
R Digital speedometer inthe Trip Trip
menu
R Odometer andthetrip odometer
R Trip computer
R Current fuelcons umption andapproximate
range
R Navigation instruction sin the Navi Navi
menu
R Cruise control 188
Menus
andsubmenusOn-board computerand display s

Tire
pres sure reached G
WA
RNING
A tire temp orarilysea led wi th tire sealant
imp airs the drivin gcha racteri stics and isnot
su ita ble for highe rsp ee ds.The reisaris kof
acc ident.
Yo usho uld the refore adaptyo ur drivin gsty le
acc ordinglyand drive car efully. Do not exce ed
the speci fiedma xim um spee dwi th atire that
ha sbe en rep aired using tire sealant.
US Aon ly:The maxim um permi ssiblesp ee dfor
a tire sealed wi th tire sealant is50 mph
(80 km/h ).The upperpa rtof the TIREFIT sticker
mu stbe affixe dto the instrument cluster inthe
dri ver 'sfie ldof vis ion.
If atire pressu reof200 kPa(2.0 bar/2 9ps i)ha s
be en atta inedaf ter ten minutes:
X Swi tch offthe tire inflation comp ressor .
X Unsc rewthefillerhos efro mthe valve ofthe
fa ulty tire .
Note thattire sealant ma yesc apewh en you
uns crew thefillerhos e.
X US Aon ly:Stow thetire sealant bo ttle and the
tire inflation comp ressor .
X Pul law ayimme diately.
X Stop after drivin gfor appro xim atelyten
min utesand checkthe tire pressu rewith the
tire inflation comp ressor .
The tirepressu remu stnow beatleas t
130 kPa(1.3 bar/19 psi). G
WA
RNING
If the required tire pressu reisnot reached
afte rdri ving forasho rtper iod,the tire istoo
ba dlyda mag ed.The tiresealant cannot repair
the tire inthis insta nce. Dama gedtiresand a
tire pressu rethat istoo low can signifi cantl y
imp airthe vehi cle'sbra king anddriving char-
acter istics. The reisaris kof acci dent.
Do not continu edri ving .Co ntact aqu alifi ed
spe cialist wo rksho p.
i USA
only: Incase ssu ch asthe one men-
tione dab ove, contact anauthori zed
Merce des-Benz Center. Orcall
1-800-FOR -MERCedes(in the USA) or
1-800-38 7-0100(in Ca nad a). X
USA only: Corre ctthe tire pressu reifit is stil l
at leas t130 kPa(1.3 bar/19 psi) .See theTire
and Load ingInformati onplacard onthe driv-
er's side B-pill aror the tire press uretablein
the fuel filler flapfor values .
X To inc rease thetire pressure :swi tch onthe
tire infla tion compres sor. X
To reduce thetire pressure :dep ress pres-
sure release button 0043next topress ure
gau ge0044.
X When thetire press ureiscorrect, unscrew the
fill er hose fromthevalve ofthe sealed tire.
Note thattiresealant may escap ewhe nyou
unscrew thefiller hose .
X Screw thevalve cap onto thetire valve ofthe
sea led tire. X
To remove thetire sealant bottle fromthetire
infla tion compres sor,press together thelock-
ing tabs onthe yellow cap.
X Pul lthe tire sealant bottle outofthe tire infla -
tion compres sor.
The filler hose remai nsattache dto the tire
sea lant bottle.
X Drive tothe neare stqua lified speci alist work-
shop andhave thetire change dthere. 278
Fl
at tireBreakdow nassi stanc e

Gene
ralnotes The
recommended tirepressu resforthe tires
mounted atthe factory canbefound onthe
lab els describ edhere.
Operation withanemergen cyspare wheel:
information onopera tionwith anemergency
spare wheelcan befound inthe general notesin
the "Emergency sparewheel"section
(Y page 315).
Further information ontire pressu rescan be
obtai nedataqua lified specia listworkshop .
Tire andLoadin gInfo rmat ionplacard 0043
Recomme ndedtirepressu res
The Tire andLoadi ngInformation placard ison
the B-pilla ron the driver's side(Ypage 301).
The Tire andLoadi ngInformation placard con-
tains therecommended tirepressu resforcold
tires. Therecommended tirepressu resare valid
for the maximu mpermis sibleloa dand uptothe
maximu mpermis siblevehicle speed.
Tire pressure table The
tirepressu retable ison the inside ofthe fuel
fill er flap .It shows thetire pressu refor alltires
permitted atthe factory forthis vehicle ;see
ill ustratio n(examp le). The
tirepressu retable contains therecommen-
ded pressu resforcold tires forvario usopera t-
ing conditions, i.e.differi ngloa dand speed con-
ditions.
If atire size precede sa tire pressu re,the fol-
low ing tire pressu reinformation isonly validfor
that tiresize; seeillustratio n(examp le). The
loadconditions "partiall ylad en" and "fully
lad en" aredefined inthe table fordiffere ntnum-
bers ofoccupa ntsand amou ntsoflug gage .The
actual number ofseats maydiffer. Some
tirepressu retable sshow onlytherim
dia meters instead ofthe fulltire size, e.g.R18.
Rim diameter ispart ofthe tire size andcanbe
found onthe tire side wall(Y page 305). 294
Tire
pressureWheel sand tires

If
the tire pressu reshave been settothe lowe r
valu esfor lighter loadsand/or lowerroad
speed s,the pressu resshoul dbe reset tothe
higher values:
R ifyou want todrive withanincreased load
and/or
R ifyou want todrive athigher speeds
i The
tirepressu resforincreased loadsand/
or higher roadspeed s,shown inthe tire pres-
sure table, mayhave anegative effectondriv-
ing comfort.
If the tire pressu reisnot setcorrectly, thiscan
lea dto an excessive build-up ofheat andasud-
den loss ofpressu re.
For more information, contactaqua lifiedspe-
ciali stworkshop. Important
notesontire pressure G
WARNING
If the tire pressu redrops repeatedly,the
wheel ,valve ortire may bedama ged.Tire
pressu rethat istoo low may resul tin atire
blow -out. There isarisk ofan accident.
R Check thetire forforeign objects.
R Check whether thewheel islosing airorthe
valve islea king.
If you areunabl eto rectify thedama ge,con-
tact aqua lifiedspecia listworkshop. G
WARNING
If you fitunsui table accessorie sonto tire
valves ,the tire valves maybeoverloa dedand
malfu nction, whichcancause tirepressu re
loss. Duetotheir desig n,retrofitted tirepres-
sure monitors keepthetire valve open. This
can also resul tin tire pressu reloss. There isa
risk ofan accident.
Only screw thestandard valvecaporother
valve capsappro vedbyMercedes-Benz for
you rvehicle ontothetire valve.
Use asuita blepressu regau getocheck thetire
pressu re.The outer appearance ofatire does
not permit anyrelia bleconclusion aboutthe tire
pressu re.On vehicle sequi pped withtheelec-
tronic tirepressu remonitor, thetire pressu re
can bechecked inthe on-board computer. The
tiretemperature andpressu reincrease
when thevehicle isin motion. Thisisdepende nt
on the driving speedandtheload .
Therefore, youshoul donly correct tirepres-
sures whenthetires arecold.
The tires arecold:
R ifthe vehicle hasbeen parked withthetires
out ofdirect sunlightfor atlea stthree hours
and
R ifthe vehicle hasbeen driven lessthan 1mile
(1.6 km)
The tiretemperature changesdependingon the
outsid etemperature ,the vehicle speedandthe
tire load .If the tire temperature changesby
18 ‡(10 †), thetire pressu rechanges by
appro ximately 10kPa (0.1 bar/ 1.5psi).Take
this into account whenchecking thepressu reof
warm tires.Onlycorrect thetire pressu reifit is
too low forthe current operatingconditions. If
you check thetire pressu rewhen thetires are
warm, theresul tingvaluewil lbe highe rthan if
the tires were cold.Thisisnormal. Donot
reduce thetire pressu reto the valu especifie d
for cold tires. Thetirepressu rewou ldotherwise
be too low.
Observe therecommended tirepressu resfor
cold tires:
R on the Tire andLoadi ngInformation placard
on the B-pilla ron the driver's side
R in the tire pressu retable inthe fuel fillerflap
(Y page 141) Underinfl
atedoroverin flated tires
Underinfl atedtires G
WARNING
Tires withpressu rethat istoo low can over-
heat andburst asaconsequence. Inaddi tion,
they alsosuffer fromexcessive and/orirreg-
ula rwea r,which canseverel yimpa irthe brak-
ing propertie sand thedriving characteristics.
There isarisk ofan accident.
Avoid tirepressu resthat aretoo low inall the
tires, includi ngthe spare wheel.
Underinfla tedtires may:
R overhea t,lea ding totire defects
R adverse lyaffect handling Tire
pressure
295Wheelsand tires Z

R
wear excessiv elyand/ orunev enly
R have anadver seeffect onfuel consumpt ion
Over inflatedtires G
WAR
NING
Tires withexcessiv elyhigh pressure canburst
becaus eth ey are damaged moreeasily by
road debris ,pot holes etc.In addit ion,they
also sufferfro mirre gular wear, which can
seve relyimpair thebrak ingprope rties and the
driv ingchar acterist ics.Ther eis arisk ofan
acc iden t.
Av oid tirepres sures that are too high inall the
tir es, including thespare wheel.
Over inflated tires may:
R inc rease thebrak ingdist ance
R adver selyaffecthand ling
R wear excessiv elyand/ orunev enly
R have anadver seeffect onride comfort
R be mor esusc eptible todamage
Max imumtirepr essur es 0043
Example: maximum permissible tirepres -
sure
Nev erexc eed themax imum permissible tire
inf latio npres sure. Always observetherec om-
men dedtirepres sure foryour vehic lewhen
adjus tingth etir epres sure (Ypage 293).
i The
actual values fortires are vehic le-spe-
cif icand may deviat efro mthevalues inthe
illust ration. Checking
thetir epr essur es
Imp ortant safety notes The
tirepres sure monitordoes notwarn youof:
R inc orrect lyset tirepres sure
R sudden lossoftirepres sure, e.g.fro mafor -
eign object that has penetrated thetir e
Obser vethenot eson tirepres sure
(Y page 293).
In for mat iononair pres sure forthetir es on your
vehic lecan befoun d:
R on thevehic le'sTire andLoadin gIn for mat ion
placar don theB- pillar
R in thetir epres sure table inthefuel filler flap
(Y page 141)
R in the"Tire pressure" section
Checking tirepr essur esma nua lly To
det erm ineand setthecor recttir epres sure,
proc eedasfollo ws:
X Remov eth evalve capofthetir eth at isto be
che cked.
X Pres sth etir epres sure gauge securely onto
th evalve .
X Read thetir epres sure andcompare itto the
rec omm endedvalue ontheTire andLoadin g
In for mat ionplacar dor thetir epres sure table
(Y page 293).
X Ifth etir epres sure istoo low, increase thetir e
pres sure totherec omm endedvalue.
X Ifth etir epres sure istoo high, releas eair. To
do so, pres sdown themet alpin inthevalve ,
using thetip ofapen forexam ple.Then check
th etir epres sure again usingthetir epres sure
che cker.
X Sc rew thevalve capontoth evalve .
X Repeat these steps fortheoth ertires. Tir
epr essur eloss warning system
(Cana daonly)
Gener alnotes While
thevehic leisin mot ion, thetir epres sure
loss warn ingsyst emmon itorstheset tirepres -
sure using therot ation alspeed ofthewheels.
This enabl esthesyst emtodet ect sign ificant
pres sure lossinatir e. Ifth espeed ofrot ation of
a wheel changesasaresult ofaloss ofpres sure, 296
Tir
epr essur eWheels andtires