2019 MERCEDES-BENZ CLA COUPE climate control

The
climate controlsystem switches tothe
following functions:
R high airflow
R high temperat ure
R air distribution tothe windshield andfront
side windows
R air-recirc ulationmodeoff
i The
"Windshield defrosting"funct ionauto-
matically setstheblower leveltothe optimum
defrost ingeffect .As aresult, theairflow may
increase ordecrease automatically afterthe
0064 button ispressed.
i You
canadjust theblower levelmanually
while the"Windshield defrosting"funct ionis
in operation:
R Air- condit ioning system: turnairflow con-
trol 0083count er-clockwise orclock wise
(Y page 112).
R Dual-zon eautomatic climatecontrol:press
the 00F2 or00F3 button .
X To deactivat e:press the0064 button .
The indicator lampinthe 0064 button goes
out. Thepreviously selectedsettings are
restor ed.Air-recirc ulation moderemains
deactivated.
or
X Dual-zon eclimate control:press the0058
button .
The indicator lampinthe 0064 button goes
out. Airflow andairdistribution aresetto
automatic mode.
or X Air- condit ioning system: turntemperat ure
cont rol0043 count er-clockwise orclock wise
(Y page 112).
Dual-zon eautomatic climatecontrol:turn
temperat urecont rol0043 or006D count er-clock-
wise orclock wise(Ypage 114). MAX
COOL maxim umcooli ng
The MAX COOL functionisonly availabl ein vehi-
cles forthe USA .
MAX COOL isonly operational whentheengine
is runnin g. X
To activat e:press the00C9 button .
The indicator lampinthe button lightsup.
X To deactivat e:press the00C9 button .
The indicator lampgoesout.Thepreviously
selected settings arerestor ed.
When youactivate MAXCOOL, climate control
switches tothe following functions:
R maximum cooling
R maximum airflow
R air-recirc ulationmodeon Removing
condensation fromthewin-
dows
Windows foggeduponthe inside Air-conditioning
system
X Act ivate the005A "Cooling withairdehumid-
ification" function.
X Ifthe windows continue tofog up,activate the
0064 "Windshield defrosting"funct ion.
i You
should onlyselect thissettinguntil the
windshield isclear again.
Dual-zone automat icclimate control
X Act ivate the005A "Cooling withairdehumid-
ification" function.
X Act ivate automatic mode0058.
X Ifthe windows continue tofog up,activate the
0064 "Windshield defrosting"funct ion.
i You
should onlyselect thissettinguntil the
windshield isclear again.
Windows foggeduponthe outside X
Act ivate thewindshield wipers.
X Set theairdistribution to009C or009B.
i You
should onlyselect thissettinguntil the
windshield isclear again. Rear
window defroster
General notes The
rear window defroster hasahigh current
draw. Youshould therefor eswitch itoff assoon
as the rear window isclear. Otherwise, therear
window defroster switchesoffautomatically
after several minutes. Opera
tingtheclimate controlsystems
119Climatecontrol

If
the battery voltage istoo low, therear window
defroster mayswitch off. Ac
tivating/de activating X
Turn theSmartKey topositio n0048 inthe igni-
tion lock (Ypage 123).
X Press the006C button.
The indicator lampinthe 006C button lights
up orgoes out.
Proble mswith therear window defroster Proble
m Possi
blecauses /consequen cesand 0050 0050
Solutio ns The
rear window
defroster hasdeactiva -
ted premature lyor can-
not beactivated. The
battery hasnotbeen sufficie ntlycharged.
X Switch offany consumers thatarenot requi red,e.g.readi nglamp s,
interior lighting orthe seat heating.
When thebattery issufficie ntlycharged, therear window defroster
can beactivated again. Swi
tching air-recirculatio nmode
on/ off
Gene ralnotes You
candeactiva tethe flow offresh airif
unple asantodors areentering thevehicle from
outsid e.The airalrea dyinside thevehicle will
then berecircula ted.
If you switch onair-recircu lationmode, thewin-
dows canfogupmore quickly, inparticul arat
low temperature s.Only useair-recircul ation
mode brieflyto prevent thewindow sfrom fog-
ging up.
The opera tionofair-recircul ationmode isthe
same forallcontrol panels.
Ac tivating/de activating X
Turn theSmartKey topositio n0048 inthe igni-
tion lock (Ypage 123).
X To activate: pressthe008A button.
The indicator lampinthe 008A button lights
up.
Air-recircula tionmode switches onautoma ti-
cally :
R at high outsid etemperature s
R at high levelsof poll ution
When air-recircu lationmode isactivated auto-
matical ly,the indicator lampinthe 008A button
is not lit.Outside airisadde dafter about
30 minutes . X
To deactivate: pressthe008A button.
The indicator lampinthe 008A button goes
out.
i Air-recircula tionmode deactiva tesauto-
matical ly:
R after appro ximately fiveminutes atoutsid e
temperature sbelo wappro ximately 45‡
(7 †)
R after appro ximately fiveminutes ifthe
"Co oling withairdehu midifi cation" func-
tion isdeactiva ted
R after appro ximately 30minutes atoutsid e
temperature sabove approximately 45‡
(7 †) ifthe "Cooling withdehu midifi cation"
function isactivated Swi
tching theresidual heatonoroff
Gene ralnotes The
residu alheat function isonly availablein
vehicle sfor Cana dawith dual-zone automa tic
climate control.
It is possib leto make useofthe residu alheat of
the engine tocontinue heatingthevehicle for
appro ximately 30minutes aftertheengine has
been switched off.The heating timedepends on
the setinterior temperature .
i The
blow erwil lrun atalow speed regard less
of the airflowsetting. 120
Operating
theclimat eco ntrol systemsClimate control

i
If
you activate theresidu alheat function at
high temperature s,only theventilation willbe
activated. Theblow erruns atmediu mspeed .
i You
cannot usetheventilation tocool the
vehicle interior toatemperature lowerthan
the outsid etemperature .
Ac tivating/de activating X
Turn theSmartKey topositio n005A inthe igni-
tion lock orremove it(Y page 123).
X Press the004B button.
The indicator lampinthe 004B button lights
up orgoes out.
The indicator lampinthe button indicates that
the respective functionisactivated.
i Resi dualheat isdeactiva tedautoma tically:
R after appro ximately 30minutes
R when theignition isswitched on
R ifthe battery voltage drops Air
vents Important
safetynotes G
WARNING
Very hotorvery cold aircan flow from theair
vents. Thiscould resultin burns orfrostbite in
the immedi atevicinity ofthe airvents. There
is arisk ofinjury.
Make surethatallvehicle occupants always
maintain asufficie ntdistance tothe airout-
lets. Ifnecessary ,redirect theairflowto
another areaofthe vehicle interior.
In order toensure thedirect flowoffresh air
through theairvents intothevehicle interior,
plea seobserve thefollow ingnotes:
R keep theairinlet between thewindshi eldand
the hood freeofblockage s,such asice, snow
or lea ves.
R never covertheairvents orair intake grillesin
the vehicle interior.
i For
optimal climatecontrolinthe vehicle ,
open theairvents completely andsetthe
adjusters tothe central position. Setting
theairvents 0043
Side window defroster vent
0044 Side airvent
X To open aside airvent: turntheadjuster in
side airvent 0044tothe left.
X To clo seaside airvent: turntheadjuster in
side airvent 0044clockwise asfar asitwil lgo.
i The
center andrear airvents areadjusted in
the same way. Ai
rvents
121Climate control Z

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine doesnot
start. Youcannot hear
the starter motor. The
on-board voltageistoo low because thebattery istoo weak or
discharged.
X Jump-start thevehicle (Ypage 282).
If the engine doesnotstart despite attemptsto jump-st artit:
X Consult aquali fiedspecialist workshop. The
starter motorwasexposed toathermal loadthatwastoohigh.
X Allow thestarter motortocool down forapproximately twominutes.
X Try tostart theengine again.
If the engine stilldoes notstart:
X Consult aquali fiedspecialist workshop. The
engine isnot running
smoothly andismisfir-
ing. There
isamalfunction inthe engine electron icsorinamechanical
componen tof the engine management system.
X Only depress theaccelerator pedalslightly.
Otherwise, non-combusted fuelmay getinto thecatalytic converter
and damage it.
X Have thecause rectified immediately ataqual ified specialist work-
shop. The
coolant temperature
gauge shows avalue
above 248‡(120 †).
The coolant warning
lamp mayalsobeon and
a warning tonemay
sound. The
coolant levelistoo low. Thecoolant istoo hotand theengine isno
longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant to
cool down.
X Check thecoolant level(Ypage 263). Observe thewarning notes
as you dosoand add coolant ifnecessary. Notes
ontowing vehicles
The vehicle isnot suitable forattaching towbar
systems, suchasthose usedforflat towing or
dinghy towing.
Att aching orusing towbarsystems mayresult in
damage tothe vehicle.
When towing avehicle withtowbarsystems,
safe driving characterist icscannot beguaran-
teed forthe towing vehicle orthe towed vehicle.
The vehicle/trailer combinationmayswerve.
Observe thepermissible towingmethods
(Y page 287)andthenotes ontowing withboth
axles onthe ground (Ypage 286). DYNAMIC
SELECTbutt on(all vehicle s
except Mercedes-AMG vehicles)
Use theDYNAMIC SELECTbutton tochange the
drive program. Depending onthe drive program
selected thefollowing vehiclecharacterist ics
will change:
R the drive (engine andtransmission manage-
ment)
R the suspension (vehicleswithdamping sys-
tem orAMG adaptive sportsuspension sys-
tem)
R the sound ofthe exhaust system(vehicles
with sports exhaust system)
R the steering
R the availa bilityofthe ECO start/ stopfunct ion
R the climate control
Each timeyoustart theengine withtheSmart-
Key orthe Start /Stopbutton, driveprogram Cis DY
NAMIC SELECTbutt on(all vehicl esexce ptMercedes-AMG vehicles)
129Driving andparking Z

differen
tfor every vehicle andcandeviate
from thedata shown here.Youcanfind the
data applicable toyour vehicle onthe vehicle
ident ification plate. Vehicle
identification number(VIN) X
Slide theright -handfron tseat toits rearmost
position .
X Fold floor cover ing0043upwards.
You willsee VIN 0044.
The VINcanalso befound onthe vehicle iden-
tific ation plate(Ypage 318).
The VINcanalso befound atthe lower edgeof
the windshield (Ypage 319). Engine
number 0043
Emiss ioncontrol infor mation plate,includ-
ing the cert ification ofboth federal andCali-
forn ianemission sstan dards
0044 VIN (onthe lower edgeofthe windshield)
0087 Engine number (stamped intothe cran k-
case) Service
product sand filling capaci-
ties Impor
tantsafet ynotes G
WARN
ING
Serv iceproduct smay bepoisonous andhaz-
ardous tohealth. Thereisarisk ofinjury.
Comply withinstruct ions onthe use, storage
and disposal ofservic eproduct son the labels
of the respect iveoriginal container s.Always
stor eservic eproduct ssealed intheir original
con tainer s.Always keepservic eproduct sout
of the reach ofchildren . H
Environm
entalnote
Dispose ofservic eproduct sin an envir on-
ment allyrespon siblemann er.
Serv iceproduct sinclude thefollowing:
R Fuels
R Lubrican ts(e.g. engin eoil, tran smission oil)
R Coolant
R Brak efluid
R Windshield washerfluid
R Climate control system refrigerant
Componen tsand servic eproduct smust match.
Only useproduct srecom mended byMercedes -
Ben z.Damage whichiscaused bythe use of
product swhich havenotbeen recom mended is
not cover edbythe Mercedes -Benzwarrant yor
goodwill gestures.Product sapproved by
Mercedes -Benzare listed inthis Operator 's
Manual inthe appropriate section.
Inf ormat ionontest edand approved products
can beobtained ataMercedes -BenzServ ice
Center oron the Internet at
htt p:// bevo.m ercedes- benz.com.
You canrecogniz eserv iceproduc tsapprove dby
Merc edes- Benzby the followin ginsc ription on
the contain ers:
R MB- Freigabe (e.g.MB-Freigabe 229.51)
R MB- Appr oval(e.g. MB-Appr oval229.51)
Oth erdesign ationsor rec omme ndations indi-
cat ealevel ofquality oraspecif ication in
acco rdanc ewith anMB Shee tNumber (e.g.MB
229 .5).They have notnecessarily been
approve dby Merc edes- Benz. Serv
iceproduct sand filling capacities
319Technical data Z

When
handling washerfluid,observe theimpor-
tant safety noteson service products
(Y page 319).
At temper aturesabovefreezing:
X Fill the washer fluidreservoir withamixt ureof
water andwindshield washerfluid,e.g.MB
SummerF it.
Add 1part MBSummerF itto 100 parts water.
At temper aturesbelowfreezing:
X Fill the washer fluidreservoir withamixt ureof
water andwasher fluid,e.g.MBWinter Fit.
For thecorr ectmixing ratiorefer tothe infor-
mation onthe antifr eezereservoir .
i Add
windshield washerfluid,e.g.MBSum-
merFit orMB Winter Fit,tothe washer fluidall
year round. Climate
controlsystem refrigerant
Impor tantsafety notes The
climate controlsystem ofyour vehicle isfil-
led with refrigeran tR‑ 134a.
The instruction labelregarding therefrigeran t
type used canbefound onthe left, onthe under-
side ofthe hood.
! Only
therefrigeran tR‑134a andthePAG oil
approved byMercedes- Benzmaybeused.
The approved PAGoilmay notbemixed with
any other PAGoilthat isnot approved for
R-134 arefrigeran t.Other wise, theclimate
cont rolsystem maybedamaged.
Servic ework, suchasrefilling withrefrigeran tor
replacing componentparts, mayonlybecarried
out byaqualified specialist workshop. Allappli-
cable regulations, aswell asSAE standard J639,
must beadhered to.
Always havework onthe climate controlsystem
carried outataqualified specialist workshop. Refr
igerant instructionlabel Exam
ple:refrigeran tinst ruction label
0043 Symbol
0044 Refrigerant fillingcapacity
0087 Applicable standards
0085 PAG oilpart number
0083 Type ofrefrigeran t
Symbols 0043advise youabout:
R Possible dangers
R Having service workcarried outataqualified
specialist workshop
Filling capacit ies Model Refr
igerant Mercedes
‑AMG
vehicles 23.
6±0.4 oz
(670 ±10 g) All
other models 22.
9±0.4 oz
(650 ±10 g) Model PAG
oil All
models 4.2
oz
(120 g) 324
Service
products andfilling capacit iesTechnical data