2018 MERCEDES-BENZ CLA COUPE air conditioning

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

Important safety notes
GWARNING
If th eengineiss witched off automatically and
you exit th evehicle, th eengineisr estarte d
automatically. The vehicl emay begi nmoving .
Ther eisar iskofa cciden tand injury.
If you wish to exit th evehicle, always tur noff
th ei gnition and secure th evehicl eagainst
rollin gaway.
General notes
:ECO start/sto pdisplay
The ECO start/sto pfunction is activated when -
eve ryou start th eengineu singthe SmartKey or
th eS tart/Sto pbutton.
If th eengineh as been switched off automati-
call ybyt heECO start/sto pfunction ,the è
ECO symbol is shown in th emultifunction dis-
play.
Mercedes-AM Gvehicles: theE CO start/sto p
function is only available in driv eprogram C.
Automati cengines witch-off
If thevehicl eisb raked to astandstill in Dor N,
th eE CO start/sto pfunction switches off th e
engin eautomatically.
The ECO start/sto pfunction is operational
when :
Rthei ndicator lamp in th eECO butto nislit
green .
Rtheo utside temperature is within th erange
that is suitable for th esystem.
Rthee ngineisatn ormaloperating tempera-
ture.
Rth es et temperature for th evehicl einterior
has been reached.
Rth eb attery is sufficientl ycharged.
Rthes ystem detects that th ewindshield is no t
fogged up when th eair-conditioning system is
switched on .
Rtheh oodisc losed.
Rthed river' sdoor is closed and th edriver' s
seat belt is fastened.
All of th evehicle's systems remain active when
th ee ngineiss toppe dautomatically.
The HOLD function can also be activated if th e
engin ehas been switched off automatically. It is
then no tneces sarytoc ontin ue applyin gthe
brakes during th eautomatic stop phase. When
you depress th eaccelerato rpedal ,the engin e
start sautomatically and th ebraking effec tof
th eH OLDf unction is deactivated.
Automatic engin eswitch-off can tak eplacea
maximum of four times in arow (initial stop, then
three subsequen tstops).
Automati cengines t art
The enginestartsa utomatically if:
Ryou switch off th eECO start/sto pfunction by
pressin gthe ECO butto n
Rin transmission position Dor Ntheb rak e
pedal is release dand th eHOLDfunction is no t
active
Ryou depress th eaccelerato rpedal
Ryou engage revers egear R
Ryou mov ethe transmission out of position P
Ryou unfasten your seat belt or open th edriv-
er' sd oor
Rthev ehicl estartstor oll
Rth eb rak esystem require sthis
Rth et em perature in th evehicl einterior devi-
ate sfromt heset range
Rthes ystem detects moisture on th ewind-
shield when th eair-conditioning system is
switched on
Rth eb attery's condition of charge is to olow
Shifting th etransmission to position Pdoes no t
start th eengine.
126Driving
Driving and parking