2019 MERCEDES-BENZ CLA COUPE air condition

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

systems,
e.g.thebrake system. Useonly genu-
ine Mercedes-Benz partsorparts ofequa lqual -
ity. Only usetires, wheels andaccessories that
have been specifically approvedforyour vehi-
cle.
Genuine Mercedes-Benz partsaresubject to
strict qualitycont rol.Every parthasbeen spe-
cifically developed ,manufactured orselected
for and adap tedtoMercedes-Benz vehicles.
Therefore, onlygenuine Mercedes-Benz parts
should beused.
More than300,000 differentgenuine
Mercedes-Benz partsareavail able for
Mercedes-Benz models.
All authorized Mercedes-Benz Centersmaintain
a supply ofgenuine Mercedes-Benz partsfor
necessary serviceandrepair work.Inaddition,
strategically locatedpartsdelivery centerspro-
vide quick andreliab leparts service.
Always specify thevehicle identification number
(VIN) when ordering genuineMercedes-Benz
parts (Ypage 318). Operator
'sManual Vehicle
equipment
i This
Operator's Manualdescribes allmodels
and allstandard andoptional equipment of
your vehicle available atthe time ofthis Oper-
ator's Manual goingtoprint. Country-specific
differences arepossible .Bear inmind that
your vehicle maynotfeature allfunctions
described here.Thisalso appli estosafety-
relevant systems andfunctions. Theequip -
ment inyour vehicle maytherefore differfrom
that shown inthe descriptions andillustra-
tions.
The original purchase agreement listsallsys-
tems installed inyour vehicle.
Should youhave anyquestions concerning
equip ment andoperation, pleaseconsult an
authorized Mercedes-Benz Center.
The Operator's ManualandMaintenance Book-
let are important documents andshould bekept
in the vehicle. Service
andvehicl eoperation Warr
anty
The Limited Warranty foryour vehicle appliesin
accordance withthewarranty termsandcondi-
tions inthe Service andWarranty Information
booklet.
Your authorized Mercedes-Benz Centerwill
replace andrepair allfactory-inst alledparts in
accordance withthefollowi ngwarranty terms
and conditions:
R New Vehicle Limited Warranty
R Emission SystemWarranty
R Emission Performance Warranty
R Cal ifornia, Connecticut ,Maine, Massachu-
setts, NewYork, Pennsylvania, RhodeIsland
and Vermont Emission ControlSystem War-
ranty
R State warranty enforcemen tlaws (lemon
laws)
Repla cement partsandaccessories arecovered
by the Mercedes-Benz PartsandAccessories
warranties. Theseareavail able atany author-
ized Mercedes-Benz Center.
i Should
youlose your Service andWarranty
Information booklet,haveanauthorized
Mercedes-Benz Centerarrange forareplace-
ment. Thenew Service andWarranty Infor-
mation booklet willbeposted toyou. Information
forcustomers inCalifor-
nia
Under California lawyou may beentitled toa
replacement ofyour vehicle orarefund ofthe
purchase priceorlease price, ifafter areason-
able number ofrepair attempts Mercedes-Benz
USA, LLCand/or itsauthorized repairorservice
facilities failtofix one ormore substantial
defects ormalfunctions inthe vehicle thatare
covered byits express warranty.
During theperiod of18 months fromoriginal
delivery ofthe vehicle orthe accumula tionof
18,000 miles(approximately 29,000km)onthe
odometer ofthe vehicle, whichever occursfirst,
a reasonable numberofrepair attempts ispre-
sumed foraretail buyeror lessee ifone ormore
of the followi ngoccurs:
(1) thesame substantial defectormalfunction
results inacondition thatislikely tocause Service
andvehic leoperation
25Introduction Z

Opera
tingsafet y Impor
tantsafet ynotes G
WARN
ING
If you donot have theprescr ibedservic e/
maint enanc ework orany required repairs
carried out,thiscanresult inmalfunct ionsor
system failures. Thereisarisk ofan acciden t.
Always havetheprescr ibedservic e/maint e-
nanc ework aswell asany required repairs
carried outataqualified specialist workshop. G
WARN
ING
Flammable materialsuchasleaves, grassor
twigs mayignite ifthey come intocontact with
hot parts ofthe exhaust system.Thereisarisk
of fire.
When driving onanunpaved roadoroff- road,
chec kthe vehicle underside regularly.Inpar-
ticular, remove trapped plantparts orother
flammable material.Contacta qualified spe-
cialist worksho pimmediately ifdamage is
detec ted. G
WARN
ING
Modificat ionstoelectr oniccompon ents,their
soft ware aswell aswiring canimpair their
func tion and/or thefunc tion ofother net-
worked compon ents.In particular, systems
relevant tosafety couldalsobeaffect ed.Asa
result, thesemaynolonger function asinten -
ded and/or jeopardiz ethe operatin gsafety of
the vehicle. Thereisan incr eased riskofan
acciden tand injur y.
Never tamper withthewiring aswell aselec-
tron iccompon entsor their software. You
should haveallwork toelectr icaland elec-
tron icequipment carriedoutataqualified
specialist workshop. !
There
isarisk ofdamage tothe vehicle if:
R the vehicle becomes stuck,e.g. onahigh
curb oran unpaved road
R you drive toofast over anobstacle, e.g.a
curb, aspeed bumporapothole inthe road
R aheavy objectstrik esthe underbody or
parts ofthe chassis
In situation slike this, thebody, theunder-
body, chassis parts,wheels ortires could be
damaged withoutthedamage beingvisible.
Componen tsdamaged inthis way canunex-
pect edly failor,inthe case ofan acciden t,no
longer withstandtheloads theyaredesigned
to.
If the underbody panelingisdamaged, com-
bustible materials suchasleaves, grassor
twigs cangather between theunderbody and
the underbody paneling.Ifthese materials
come incon tact with hotparts ofthe exhaust
system, theycancatc hfire.
In such situation s,have thevehicle checked
and repaired immediately ataqualified spe-
cialist worksho p.Ifon con tinuin gyour jour-
ney you notice that driving safetyisimpaired,
pull over andstop thevehicle immediately,
paying attentiontoroad andtrafficcon di-
tion s.In such cases, consult aqualified spe-
cialist worksho p. Declarations
ofconformit y
USA: "Thewireless devicesofthis vehicle com-
ply with Part15ofthe FCC Rules. Operation is
subject tothe two following twoconditions :1)
These devices maynotcause harmful interfer-
ence, and2)These devices mustaccept any
inter feren cereceived, includinginterferen ce
that may cause undesired operation.Changes
or modificat ionsnotexpress lyapproved bythe
party respon sibleforcomplianc ecould voidthe
user’s authorit yto operate theequipment. "
Canada :"The wireless devicesofthis vehicle
comply withIndust ryCanada license-exempt
RSS standard(s). Operation issubject tothe fol-
lowing twoconditions :(1) These devices may
not cause interferen ce,and (2)These devices
must accept anyinter feren ce,including inter-
feren cethat may cause undesired operationof
the device. " Opera
tingsafet y
27Introduction Z

The
following textisreproduced asrequired of
all manufact urersunder Title49,Code ofU.S.
Federal Regulations,Part575pursuant tothe
National TrafficandMotor Vehicle SafetyActof
1966 .
If you believe thatyour vehicle hasadefect
which couldcause acrash orcould cause injury
or death, youshould immediately informthe
National Highway TrafficSafety Administ ration
(NHTSA )in addition tonot ifying Mercedes- Benz
USA ,LLC.
If NHTSA receives similarcomplaints ,it may
open aninvest igation, andifit finds thatasafety
defect existsinagroup ofvehicles, itmay order
a recall andremedy campaign. However,NHTSA
cann otbecome involved inindividual problems
between you,your dealer, orMercedes- Benz
USA ,LLC.
To cont actNHTSA ,you may calltheVehicle
Safety Hotlinetoll-fr eeat1-8 88-327- 4236
(TTY: 1-800-424- 9153 );go tohtt p://
www .safer car.gov; orwrite to:Administ rator,
NHTSA ,400 Sevent hStr eet, SW., Washington ,
DC 2059 0.
You canalso obtain otherinformat ionabout
motor vehicle safetyfrom
htt <0053001D00120012005A005A005A001100560044004900480055004600440055
0011> gov Limited
Warrant y
! Observe
thenotes inthis Operator's Manual
regarding thecorrec toperation ofyour vehi-
cle and possible damagetothe vehicle. Dam-
age tothe vehicle whichiscaused byviolation
of these notes isnot covered bythe
Mercedes-B enzimplied warranty orthe new
or used-vehicle warranty. QR
code forrescue card
The QRcodes aresecured inthe fuel filler flap
and onthe opposite sideonthe B-pillar. Inthe
event ofan accident ,rescue services canuse
the QRcode toquickly findtheappropriate res-
cue card foryour vehicle. Thecurrent rescue
card contains themost important information
about yourvehicle inacompact form,e.g.the
routing ofthe electric cables.
You canfind more informat ionunder
www.mercedes-ben z.de/qr-code. Data
storage Data
storage
A wide range ofelectron iccomponen tsinyour
vehicle containdata memories.
These datamemories temporarily orperma-
nent lystore technicalinformat ionabout:
R the vehicle's operating state
R incident s
R malfunction s
In general, thistechn icalinformat iondocu-
ment sthe state ofacomponen t,amodule, a
system orthe surroundings.
These include, forexample:
R operating conditionsofsystem componen ts.
For example, fluidlevels
R the vehicle's statusmessages andthose ofits
individual componen ts,e.g. number ofwheel
revolutions/ speed,deceleration inmove-
ment ,lateral acceleration, acceleratorpedal
position
R malfunction sand defects inimportant system
componen ts,e.g. lights, brakes
R vehicle reaction sand operating conditionsin
special drivingsituations, e.g.airbag deploy-
ment ,interv ention ofstability controlsys-
tems
R ambient conditions,e.g.outside temperature
This data isof an exclusively technicalnature
and canbeused to:
R assist inrecogniz ingand rectifying malfunc-
tions anddefects
R analyze vehiclefunctions, e.g.after anacci-
dent
R optimize vehiclefunctions
The data cannot beused totrace thevehicle's
movement s.
When yourvehicle isserviced, technicalinfor-
mation canberead from theevent datamemory
and malfunction datamemory.
Services include,forexample:
R repair services
R service processes
R warranties
R quali tyassurance
The vehicle isread outbyemployees ofthe ser-
vice network (including themanufacturer) using
special diagnostic testers. More detailed infor-
mation isobtained fromit,ifrequired. Data
storage
29Introdu ction Z

The
driver's andfront -passenger kneebags
offer additional thigh,kneeandlower legpro-
tect ionforthe occupant sin the front seats.
Side impa ctair bags G
WARNIN
G
Unsuitable seatcovers canobstruct orpre-
vent deployment ofthe airbags integr ated
into theseats. Consequently, theairbags
cann otprotec tvehicle occupant sas they are
designed todo. Inaddition, theoperation of
the occupant classification system(OCS)
could beadversely affected.This poses an
increased riskofinjury oreven fatalinjury.
You should onlyuseseat covers thathave
been approved forthe respect iveseat by
Mercedes- Benz. Fron
tside impact airbags 0043and rear side
impact airbags 0044deploy nexttothe outer bol-
ster ofthe seat backrest .
When deployed, theside impact airbag offers
additional thoraxprotection.Italso offers addi-
tional pelvis protec tionforoccupant sin the
front seats. However, itdoes notprotec tthe:
R Head
R Neck
R Arms
If the restr aintsystem controlunit detect sa side
impact, theside impact airbag isdeployed on
the side onwhich theimpact occurs.
The side impact airbag onthe front -passenger
side deploys underthefollowing conditions:
R the OCS system detectsthat thefront -
passenger seatisoccupied or
R the seat beltbuckle tongue isengaged inthe
belt buckle ofthe front -passenger seat If
the belt tongue isengaged inthe belt buckle,
the side impact airbag onthe front -passenger
side deploys ifan appropriate accidentsituation
occurs. Inthis case, deployment isindependent
of whether thefront -passenger seatisoccupied
or not .
Window curtainairbags Window
curtainairbags 0043are integr atedinto
the side ofthe roof frame anddeployed inthe
area from theA-pillar tothe C-pillar.
When deployed, thewindow curtainairbag
enhanc esthe level ofprotec tionforthe head.
However, itdoes notprotec tthe chest orarms.
If the restr aintsystem controlunit detect sa side
impact, thewindow curtainairbag isdeployed
on the side onwhich theimpact occurs.
If the system determin esthat they canoffer
additional protectiontothat provided bythe
seat belt, awindow curtainairbag may be
deployed inother accident situations
(Y page 52). Occupant
Classification System
(OCS)
Introdu ction The
Occupant Classification System(OCS)cat-
egorizes theperson inthe front -passenger seat.
Dependin gon that result, thefront -passenger
front airbag and front -passenger kneebagare
either enabled ordeactivated.
The system doesnotdeactivate:
R the side impact airbag
R the window curtainairbag
R the Emergen cyTensionin gDevices Occupant
safety
47Safety Z

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
PASS ENGER AIR
BAG OFFindicator lamp
lights upand remains lit,
even though thefront -
passenger seatisoccu-
pied byan adult oraper-
son ofastature corre-
sponding tothat ofan
adult. The
classification ofthe person onthe front -passenger seatisincor-
rect.
X Make surethecondition sfor acorrect classification ofthe person
on the front -passenger seataremet (Ypage 48).
X Ifthe PASS ENGER AIRBAG OFFindicator lampremains lit,the front -
passenger seatmaynotbeused.
X Have OCScheck edassoon aspossible atan authorized Mercedes-
Benz Center. The
PASS ENGER AIR
BAG OFFindicator lamp
does notlight upand/or
does notstay on.
The front -passenger seat
is:
R unoccupied
R occupied bythe
weight ofachild upto
twelve monthsold ina
child restraint system OCS
ismalfunctionin g.
X Make surethere isnothin gbetween theseat cushion andthechild
seat.
X Make surethattheentire baseofthe child restraint systemrestson
the seat cushion ofthe front -passenger seat.Thebackrest ofthe
forward-facing childrestraint systemmustlieasflat aspossible
against thebackrest ofthe front -passenger seat.Ifnecessary,
adjust theposition ofthe front -passenger seat.
X Make surethattheseat cushion lengthisfully retract ed.
X When installing thechild restraint system,makesurethattheseat
belt istight. Donot pull theseat belttight using thefront -passenger
seat adjustment .This could result inthe seat beltandthechild
restraint systembeingpulled tootightly.
X Check forcorrect installation ofthe child restraint system.
Make surethatthehead restraint doesnotapply aload tothe child
restraint system.Ifnecessary, adjustthehead restraint accord-
ingly.
X Make surethatnoobject sare apply ingadditional weightontothe
seat.
X Ifthe PASS ENGER AIRBAG OFFindicator lampremains offand/or
the PASS ENGER AIRBAG ONindicator lamplights up,donot install
a child restraint systemonthe front -passenger seat.Itis recom-
mended thatyouinstall thechild restraint systemonasuitable rear
seat.
X Have OCScheck edassoon aspossible atan authorized Mercedes-
Benz Center. Deployment
ofEmergency Tensioning
Devic esand airbags
Import antsafety notes G
WARNING
The airbag parts arehot after anair bag has
been deploye d.There isarisk ofinjury.
Do not touch theairbag parts. Havea
deploye dair bag replaced ataquali fiedspe-
cialist workshop assoon aspossible. G
WARNING
A deploye dair bag nolonger offersanypro-
tect ionand cannot provide theinten dedpro-
tect ioninan accident. Thereisan increased
risk ofinjury.
Have thevehicle towedtoaquali fiedspecial-
ist workshop inorder tohave adeploye dair
bag replaced.
It is important foryour safety andthat ofyour
passenger tohave deploye dair bags replaced 52
Occ
upantsafetySafety

sive
roleinthe deploy mentofan air bag. Nordo
they provide anindication ofair bag deploy -
ment.
The vehicle canbedeformed considerably, with-
out anair bag being deploy ed.This isthe case if
only parts which arerelatively easilydeformed
are affected andtherate ofdeceleration isnot
high. Conversely, airbags maybedeploy edeven
though thevehicle suffersonlyminor deforma-
tion. Thisisthe case if,for example, veryrigid
vehicle partssuchaslongitudinal bodymem-
bers arehit,and sufficient deceleration occurs
as aresult.
If the restraint systemcontrolunit detects aside
impact orifthe vehicle rollsover, theappli cable
component sof the restraint systemare
deploy edindependently ofeach other depend-
ing onthe appa renttype ofaccident.
R Side impact airbags onthe side where the
impact takesplace, independently ofthe
Emergenc yTensioning Deviceandtheuse of
the seat beltonthe driver's seatandouter
seats inthe second row
The side impact airbag onthe front -
passenger sidedeploy sunder thefollowi ng
conditions:
- the OCS system detects thatthefront -
passenger seatisoccupied or
- the seat beltbuckle tongue isengaged in
the belt buckle ofthe front -passenger seat
R Window curtainairbag onthe side ofimpact,
independently ofthe use ofthe seat beltand
independently ofwhether thefront -
passenger seatisoccupied
R Emergenc yTensioning Devices,ifthe system
determines thatdeploy mentcanoffer addi-
tional protection inthis situation
R Window curtainairbags onthe driver's and
front -passenger sideincertain situations
when thevehicle rollsover, ifthe system
determines thatdeploy mentcanoffer addi-
tional protection tothat provided bythe seat
belt
i Not
allair bags aredeploy edinan accident.
The different airbag systems workindepend-
ently ofeach other. How
theairbag system worksisdetermined
by the severity ofthe accident detected,
especial lythe vehicle deceleration oraccel-
eration andtheappa renttype ofaccident:
R Head-on collision
R Side impact
R Roll over Automatic
measuresafteranacci-
dent
Immediately afteranaccident, thefollowi ng
measures areimplemented, dependingonthe
type andseverity ofthe impact:
R the hazard warning lampsareswitched on
R the emergency lightingisactivated
R the vehicle doorsareunlocked
R the front sidewindows arelowered
R the engine isswitched offand thefuel supply
is cut off
R vehicles withMercedes meconn ect:auto-
matic emergency call Children
inthe vehicl e Importa
ntsafety notes
Acc ident statistics showthatchildren secured
in the rear seats aresafer thanchildren secured
in the front -passenger seat.Forthis reason,
Mercedes-Benz stronglyadvisesthatyouinstall
a child restraint systemonarear seat. Children
are generally betterprotected there.
If achild younger thantwelve yearsoldand
under 5ft (1.50 m)inheight istraveling inthe
vehicle:
R alwa yssecure thechild inachild restraint
system suitable forMercedes-Benz vehicles.
The child restraint systemmustbeappropri-
ate tothe age, weight andsize ofthe child.
R be sure toobserve theinstruct ionsandsafety
notes inthis section inaddition tothe child
restraint systemmanufacturer's installation
instruct ions.
R alwa ysobserve theinstruct ionsandsafety
notes onthe "Occupant classification system
(OCS)". (Ypage 47) 54
Children
inthe vehicl eSafety

Problems
withthe"Cool ingwith airdehum idification" function Problem
Possible
causes/co nsequences and0050 0050
Solutions The
indicator lampinthe
005A button flashes
three times orremains
off. The "Cooli ngwith air
<00470048004B00580050004C0047004C0049004C004600440057004C00520051
0005[ func-
tion cannot beswitched
on. Cooling
withairdehumidification hasbeen deactivated duetoamal-
funct ion.
X Visit aquali fiedspecialist workshop. Setting
climate controltoautom atic
General notes The
automatic climatecontrolfunct ionisonly
availa bleinconj unction withdual-zone auto-
matic climate control.
In automatic mode,thesettemperature ismain-
tained automatically ataconst antlevel. The
system automatically regulatesthetemperature
of the dispensed air,the airflow andtheairdis-
tribution.
The "Cooli ngwith air<00470048004B00580050004C0047004C0049004C004600440057004C00520051
0005[ function
is activated automatically inautomatic mode.
Setting climate controltoautom atic X
Turn theSmartK eytoposition 0044inthe igni-
tion lock (Ypage 123).
X Set thedesired temperature.
X To activate: pressthe0058 button.
The indicator lampinthe 0058 button lights
up. Automatic airdistribution andairflow are
activated.
X To switch tomanua lmode: pressthe004F
or 004A button.
or X Press the0097 or0095 button.
The indicator lampinthe 0058 button goes
out. Automatic airdistribution andairflow are
deactivated. Setting
thetemp eratu re
Air-conditioning system You
cansetthe temperature forthe entire vehi-
cle. The settemperature isautomatically main-
tained ataconst antlevel.
X Turn theSmartK eytoposition 2in the ignition
lock (Ypage 123).
X To increase orreduce: turncontrol0043 coun-
ter- clockwise orclockwise (Ypage 112). Only
change thetemperature settingin small
incremen ts.Start at72 ‡(22 †).
Dual-zone automaticclimate control Differen
ttemperatures canbeset forthe driv-
er's andfront -passenger sides.Thesettemper-
ature isautomatically maintainedataconst ant
level.
X Turn theSmartK eytoposition 2in the ignition
lock (Ypage 123).
X To increase ordecrease: turncontrol0043 or
006D counter -clockwiseorclockwise
(Y page 114). Onlychange thetemperature
settin gin small incremen ts.Start at72 ‡
(22 †). Setting
theairdistr ibution
Air-conditioning system Air
distr ibution settings
0061 Directsair through thedefroster vents
009C Directsair through thecent erand side air
vent s
009B Directsair through thefootwell airvent s Operat
ingthe climate controlsystems
117Climat econ trol