MERCEDES-BENZ CLA COUPE 2018 Owner's Manual

XSlide catch;in the direction of arrow =
unti lite ngages in the locking position with a
noticeable click.
XMake sure that the wiper blad eisseated cor-
rectly.
XFoldt he wiper arm back onto the windshield.
XRemove protectiv efilm :of the service indi-
cato ront he tip of the wiper blade.
If the color of the service indicator changes from
black to yellow,t he wiper blades shoul dbe
replaced.
iThe duration of the color change varies
depending on the usag econditions.
Problems with the windshield wipers
ProblemPossiblec auses/consequence sand MSolutions
The windshield wipers
are jammed.Leaves or snow,f or example, may be obstructing the windshield wiper
movement. The wiper motor hasb eend eactivated.
XFor safety reasons,y oushoul dremove the SmartKey from the igni-
tion lock.
XRemove the cause of the obstruction.
XSwitch the windshield wiper sbacko n.
The windshield wipers
failcompletely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wiper scheckedataq ualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzle sare misaligned.
XHave the spray nozzle sadjuste dataq ualified specialist workshop.
Windshiel dwipers109
Lights and windshield wipers
Z

Overview of climatecontrol systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To preventt he windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Rswitch on the defrost windshield function
briefly, if required
The air-conditionin gsystem or dual-zon eauto-
matic climate control regulates the temperature and the humidity of the vehicle interior and fil-
ters undesirable substances from the air.
The air-conditionin gsystem or dual-zon eauto-
matic climate control can only be operated
when the engin eisrunning. Optimum operation
is only achieved with the side windows and pan- orama roof with power tilt/sliding panel closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 83).
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 119). Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear
(
Ypage 106). Otherwise the vehicle will not be
ventilated correctly.
iVentilate the vehicle for abrief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 83). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. Aclogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should alwayso bserve
the interval for replacing the filter, which is
specified in the Maintenance Booklet. As it
depends on environmental conditions ,e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance Book-
let.
iIt is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the auto-
mat

ic climate control. The vehicle is then ven-
tilated for 30 minutes.
110Overview of climatec ontrol systems
Climatecontrol

Air-conditioningsystem controlpanel
USAo nly
:
Sets th etem perature (Ypage 116)
;Defroststhe windshield (Ypage 117)
=Sets theair distribution (Ypage 116)
?Switches air-recirculation mod eon/of f(Ypage 119)
ASets th eairflow (Ypage 117)
BSwitches coolin gwitha ir dehumidification on/off (Ypage 115)
CSwitches therear window defroste ron/of f(Ypage 118)
Canada only
:
Sets th etem perature (Ypage 116)
;Defroststhe windshield (Ypage 117)
=Sets theair distribution (Ypage 116)
?Switches air-recirculation mod eon/of f(Ypage 119)
ASets th eairflow (Ypage 117)
Overview of climat econtro lsystems111
Climatec ontrol

BSwitches cooling with airdehumidification on/off (Ypage 115)
CSwitches the rearw indow defrostero n/off (Ypage 118)
Notesonusing the air-conditioning
system
Air-conditioning system
Below,y oucan find anumber of notes and rec-
ommendations to helpy ouuset he air-condi-
tioning system optimally.
RSwitch on the air-conditioning system by turn- ing control knob Aclockwise to the desired
position (except position 0).
RSet the temperature to 72 ‡(22 †).
RRecommendation for avoiding misted
windows at lo wexteriort emperatures or
in rain: switch on the ¿cooling with dehu-
midification function (
Ypage 115).
Set ai rdistribution to ¯and if possible
switch off PandO (
Ypage 116).
Deactivate air-recirculation mode e
(
Ypage 119).
Set airflo wcontrol Atoas etting between 3
and 6(
Ypage 117).
RRecommendation for rapid coolin gor
heating of the vehicle interior: brieflyset
airflo wcontrol Atoas etting between 3and
6 (
Ypage 117).
RRecommendation for aconstan tvehicle
interior temperature: set airflowcontrol A
to as etting between 1and 3(
Ypage 117).
RRecommendation for air distributio nin
winter: select the Oand¯ settings
(
Ypage 116).
Recommendation for air distributio nin
summer: select the PorP and¯
settings (
Ypage 116).
ROnly us ethe "Windshieldd efrosting" function
brieflyu ntilthe windshield is clear again.
ROnly us eair-recirculation modeb riefly, e.g. if
there are unpleasant outsid eodors or when in
at unnel .The w
indow
scould otherwise fog up,
since no fresha iris drawn into the vehicl ein
air-recirculation mode.
RIf yo uchange the settings of the climate con-
trol system, the climate statu sdisplay
appears for approximately three seconds at
the botto mofthe screen in the multimedia
system display ;see separate operating
instructions .You will see the current settings
of the various climate control functions.
DYNAMI CSELECT button( except
Mercedes-AMG vehicles)
You can choose between various drive programs
with the DYNAMIC SELECT button
(
Ypage 128).
If yo uhaves elected drive program E:
Rwhen heating, the electrical heater booster is
deactivated and in the warming-up phase
heato utputi sreduced
Rthe rearw indow defrosterr unning time is
reduced
Depending on the configuration, climate set-
tings may also be influenced in the drive pro-
gram I.
If yo uhaves elected drive program Cor S,c li-
mate settings are not influenced.
EC Os tart/stop function
During automatic engine switch-off, the climate
control system only operate satareducedcapa-
city .Ify ourequire the ful lclimate control output,
yo uc an switch off the ECO start/stop function
by pressing the ECO button (
Ypage 127).
112Overviewofc limate control systems
Climate control

Control panel for dual-zone automatic climatecontrol
USAo nly
:
Set sthe temperature, left (Ypage 116)
;Set sclimate control to automatic (Ypage 116)
=Defrostst hewindshield (Ypage 117)
?Increases th eairflow (Ypage 117)
ASet sthe air distribution (Ypage 116)
BDisplay
CSwitches air-recirculation mod eon/off(Ypage 119)
DActivates/deactivate sclimate control (Ypage 115)
ESet sthe temperature, righ t(Ypage 116)
FActivatesordeactivate smaximum cooling(Ypage 118)
GSwitches coolingw ithair dehumidification on/of f(Ypage 115)
HReduces theairflow (Ypage 117)
ISwitches th erear window defroste ron/off(Ypage 118)
JSwitches th eZONE function on/of f(Ypage 117)
Overview of climatec ontrol systems113
Climate control

Canada only
:
Setsthe temperature, left (Ypage 116)
;Set sclimate control to automatic (Ypage 116)
=Defrostst hewindshield (Ypage 117)
?Increases th eairflow (Ypage 117)
ASet sthe air distribution (Ypage 116)
BDisplay
CSwitches air-recirculatio nmode on/of f(Ypage 119)
DActivates/deactivate sclimate control (Ypage 115)
ESet sthe temperature, righ t(Ypage 116)
FSwitches theresidual heat on or off (Ypage 119)
GSwitches cooling with air dehumidification on/of f(Ypage 115)
HReduces theairflow (Ypage 117)
ISwitches th erear window defroster on/of f(Ypage 118)
JSwitches theZONE function on/of f(Ypage 117)
Optimumuse of dual-zone automatic
climat econtrol
Climat econtrol system
The followingc ontainsinstructionsa nd recom-
mendationstoe nable you to get th emosto ut of
your dual-zone automatic climate control.
RActivate climate control usingt heà and
¿ buttons. The indicator lamps in the
à and¿ buttonsl ight up.
RSet thetem peratur eto72‡( 22 †).
ROnly use th e"Windshield defrosting "function
briefly until th ewindshield is clear again.
ROnly use air-recirculatio nmode briefly, e.g .if
there are unpleasanto utside odorsorwhen in
at unnel .The windows coul dotherwise fog up, since no fresh air is drawn int
othe vehicle in
air-recirculatio nmode.
RUse th eZONE function to adopt th etem per-
atur esettings on th edriver'ss ide for the
front-passenger side as well. The indicator
lamp in the ábutton goes out.
RUse th eresidual heat function if you want to
heat or ventilate th evehicle interiorw hen the
ignition is switched off .The residual heat
function can only be activated or deactivated
with th eignition switched off.
RIf you chang ethe settings of th eclimate con-
trol system, th eclimate status display
appearsf or approximately three seconds at
th eb otto moft hescreen in th emultimedia
system display; see separate operating
114Overview of climate control systems
Climate control

instructions.You will see the current settings
of the various climat econtrol functions.
DYNAMIC SELECT button (except
Mercedes-AM Gvehicles)
You can choose betwee nvarious drive programs
with the DYNAMI CSELEC Tbutton
(
Ypage 128).
If you have selected drive program E:
Rwhen heating, the electrical heaterbooster is
deactivate dand in the warming-up phase
heat output is reduced
Rthe rear window defroster running tim eis
reduced
Dependin gonthe configuration, climat eset-
tings may also be influenced in the drive pro-
gram I.
If you have selected drive program Cor S,c li-
mate settings are not influenced.
ECO start/stop function
Durin gautomatic engin eswitch-off, the climate
control system only operates at areduced capa-
city. If you require the full climat econtrol output,
you can switc hoff the ECO start/sto pfunction
by pressing the ECO button (
Ypage 127).
Operating th eclimate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climat econtrol is switched off,t he air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switc hoff
climat econtrol only briefly
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XTo switch on: turn controlAclockwise to
the desiredp osition (except position 0)
(
Ypage 111).
XTo switch off: turn controlAcounter-clock-
wise to position 0(Ypage 111).
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
iDual-zon eautomatic climat econtrol: switch
on climat econtrol primarily using the Ã
button.
Switchin gcooling with air dehumidi-
fication on/off
General notes
If you deactivatet he "Cooling with air-dehumid-
ification" function ,the air insid ethe vehicle will
not be cooled. The air insid ethe vehicle will also
not be dehumidified. The windows can fog up
more quickly. Therefore, only deactivatet he
"Cooling with air-dehumidification" function
briefly.
The "Cooling with air dehumidification" function is only available when the engin eisrunning. The
air insid ethe vehicle is coole dand dehumidified
accordingtot he temperature selected.
Condensatio nmay drip fromt he underside of
the vehicle when it is in coolin gmode. This is
normal and not asign that there is amalfunc-
tion.
Activating/deactivating
XPress the ¿button.
The indicator lamp in the ¿button lights
up or goes out.
The indicator lamp in the button indicates that
the respective function is activated. The
"Cooling with air dehumidification" function
has adelayed switch-off feature.
Operating th eclimate control systems115
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in the
¿button flashes
three times or remains
off. The "Cooling with air
dehumidification" func-
tion cannot be switched
on.Cooling with air dehumidification has been deactivated due to amal-
function.
XVisit aqualified specialist workshop.
Setting climate control to automatic
General notes
The automatic climate control function is only
available in conjunction with dual-zone auto-
matic climate control.
In automatic mode, the set temperature is main-
tained automatically at aconstant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
Setting climate control to automatic
XTurn the SmartKey to position 2in the ignition
lock (Ypage 122).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
XTo switch to manualm ode:press the É
or Ë button.
or
XPress the KorI button.
The indicator lamp in the Ãbutton goes
out. Automatic air distribution and airflow are
deactivated.
Setting the temperature
Air-conditioning system
You can set the temperature for the entire vehi- cle. The set temperature is automatically main-
tained at aconstant level.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 122).
XTo increase or reduce: turn control:coun-
ter-clockwise or clockwise (Ypage 111). Only
change the temperature settingins mall
increments. Start at 72 ‡(22 †).
Dual-zone automatic climate control
Differentt emperatures can be set for the driv-
er's and front-passenger sides. The set temper-
ature is automatically maintained at aconstant
level.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 122).
XTo increase or decrease: turn control:or
E counter-clockwise or clockwise
(
Ypage 113). Only change the temperature
settingins mall increments. Start at 72 ‡
(22 †).
Setting the air distribution
Air-conditioning system
Air distribution settings
¯ Directsa ir through the defroster vents
P Directsa ir through the center and side air
vents
O Directsa ir through the footwell air vents
116Operating the climate control systems
Climatec ontrol

iYou can also activate several air distribution
settings simultaneously. To do this ,press
multiple air distribution buttons .The air is
the ndirected through various vents.
iRegardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be close dif
the adjusters are turned clockwise until they
engage.
Setting th eair distribution
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XPress one or more of the P,O, ¯
buttons.
The corresponding indicator lamp lightsu p
briefly.
Dual-zone automatic climate control
Air distribution settings
¯ Directsair through the defroste rvents
P Directsair through the center and side air
vents
O Directsair through the footwell air vents
S Directsair through the center ,side and
footwell vents
b Directsair through the defroster, center
and side air vents
a Directsair through the defroste rand
footwell vents
_ Directsair through the defroster, center,
side and footwell vents
iRegardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be close dif
the adjusters are turned clockwise until they
engage.
Setting th eair distribution
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XPress the ÉorË button repeatedly
until the desired symbol appears in the dis-
play.
Setting th eairflow
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XTo increase or reduce: turn controlAcoun-
ter-clockwise or clockwise (Ypage 111).
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XTo increase or reduce: press theKor
I button.
Switching th eZONEf unction on/off
This function is only available with dual-zone
automatic climat econtrol.
XTo activate: press theábutton.
The indicator lamp in the ábutton lights
up.
The temperature settin gfor the driver's side
is not adopte dfor the front-passenger side.
XTo deactivate: press theábutton.
The indicator lamp in the ábutton goes
out.
The temperature settin gfor the driver's side
is adopte dfor the front-passenger side.
Defrosting th ewindshield
Genera lnotes
You can use this function to defrost the wind-
shield or to clear afoggedupw indshield and
side windows.
iYou should only selectt he "Windshield
defrosting" function until the windshield is
clear again.
Switching th e"Windshield defrosting"
function on or off
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XTo activate: press the¬button.
The indicator lamp in the ¬button lights
up.
Operating th eclimat econtrol systems117
Climat econtrol

The climate control system switches to the
following functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and front
side windows
Rair-recirculation mode off
iThe "Windshield defrosting" function auto-
matically sets the blower level to the optimum
defrosting effect.Asar esult, the airflow may
increase or decrease automatically after the
¬ button is pressed.
iYou can adjust the blower level manually
while the "Windshield defrosting" function is
in operation:
RAir-conditioning system: turn airflow con-
trol Acounter-clockwise or clockwise
(
Ypage 111).
RDual-zon eautomatic climate control: press
the ó orô button.
XTo deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
XDual-zon eclimate control: press the Ã
button.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode.
or
XAir-conditioning system: turn temperature
control :counter-clockwise or clockwise
(
Ypage 111).
Dual-zon eautomatic climate control: turn
temperature control :orE counter-clock-
wise or clockwise (
Ypage 113).
MAX COOL maximum cooling
The MAX COOL function is only availableinv ehi-
cles for the USA.
MAX COOL is only operational when the engine
is running.
XTo activate: press theÙbutton.
The indicator lamp in the button lights up.
XTo deactivate: press theÙbutton.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate control
switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Defrosting the windows
Windows fogged up on the inside
Air-conditioning system
XActivate the ¿"Cooling with air dehumid-
ification" function.
XIf the windows continue to fog up, activate the
¬ "Windshield defrosting" function.
iYou should only select this setting until the
windshield is clear again.
Dual-zone automatic climate control
XActivate the ¿"Cooling with air dehumid-
ification" function.
XActivate automatic mode Ã.
XIf the windows continue to fog up, activate the
¬ "Windshield defrosting" function.
iYou should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.
XSet the air distribution to PorO.
iYou should only select this setting until the
windshield is clear again.
Rear window defroster
General notes
The rear window defroster has ahigh current
draw. You should therefor eswitch it off as soon
as the rear window is clear. Otherwise, the rear window defroster switches off automatically
after several minutes.
118Operating the climate control systems
Climate control