2016 MERCEDES-BENZ CLA-Class Owner's Manual

RUse the residual heat function if you want to
heat or ventilate the vehicle interior when
the ignition is switched off. The residual
heat function can only be activated or deac-
tivated with the ignition switched off.
RIf you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-
tions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles)
You can choose between various drive pro-
grams with the DYNAMIC SELECT button
(
Ypage 155).
If you have selected drive program E:
Rwhen heating, the electrical heater booster
is deactivated and in the warming-up phase
heat output is reduced
Rthe rear window defroster running time is
reduced
Depending on the configuration, the climate
settings can also be influenced in drive pro-
gram I.
If you have selected drive program Cor S, the
climate settings are not affected.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (
Ypage 153).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo switch on: turn controlAclockwise to
the desired position (except position 0)
(
Ypage 131).
XTo switch off: turn controlAcounter-
clockwise to position 0(
Ypage 131).
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic 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-zone automatic climate control:
switch on climate control primarily using
the à button.
Operating the climate control systems135
Climate control

Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi- cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunc- tion.
Switching on/off
XTo activate: press the¿button.
The indicator lamp in the ¿button lights
up.
XTo deactivate: press the¿button.
The indicator lamp in the ¿button goes
out. The "Cooling with air dehumidification" function has a delayed switch-off feature.
136Operating the climate control systems
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 "Cool-
ing with air dehumidifi-
cation" function cannot
be switched on.Cooling with air dehumidification has been deactivated due to a
malfunction.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
The automatic function is only available in
conjunction with dual-zone automatic climate
control.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
Setting climate control to automatic
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
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 manual mode: press the
É orË 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
vehicle. The set temperature is automatically
maintained at a constant level.
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo increase/reduce: turn control:
clockwise or counter-clockwise
(
Ypage 131). Only change the temperature
setting in small increments. Start at 72 ‡
(22 †).
Dual-zone automatic climate control
Different temperatures can be set for the
driver's and front-passenger sides. The set
temperature is automatically maintained at a
constant level.
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo increase/reduce: turn thumbwheel:
or E to the left or right (
Ypage 133). Only
Operating the climate control systems137
Climate control

change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the air distribution
Air-conditioning system
Air distribution settings
¯ Directs air through the defroster vents
P Directs air through the center and side
air vents
O Directs air through the footwell air
vents
iYou can also activate several air distribu-
tion settings simultaneously. To do this,
press multiple air distribution buttons. The
air is then directed 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
closed if the adjusters are turned clockwise until they engage.
Setting the air distribution
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XPress one or more of the P,O,¯
buttons.
The corresponding indicator lamp lights up
briefly.
Dual-zone automatic climate control
Air distribution settings
¯ Directs air through the defroster vents
P Directs air through the center and side
air vents
O Directs air through the footwell air
vents
S Directs air through the center, side and
footwell vents
b Directs air through the defroster, cen-
ter and side air vents a
Directs air through the defroster and
footwell vents
_ Directs air through the defroster, cen-
ter, 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
closed if the adjusters are turned clockwise until they engage.
Setting the air distribution
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XPress the ÉorË button repeatedly
until the desired symbol appears in the dis-
play.
Setting the airflow
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo increase/reduce: turn controlA
clockwise or counter-clockwise
(
Ypage 131).
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo increase/reduce: press theKor
I button.
Switching the ZONE function on/off
This function is only available with dual-zone
automatic climate control.
XTo activate: press theábutton.
The indicator lamp in the ábutton lights
up.
The temperature setting for the driver's
side is not adopted for the front-passenger
side.
138Operating the climate control systems
Climate control

XTo deactivate:press theábutton.
The indicator lamp in the ábutton goes
out.
The temperature setting for the driver's
side is adopted for the front-passenger
side.
Defrosting the windshield
General notes
You can use this function to defrost the wind-
shield or to defrost the inside of the wind-
shield and the side windows.
iYou should only select the "Windshield
defrosting" function until the windshield is
clear again.
Activating/deactivating the defrosting
function for the windshield
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo activate: press the¬button.
The indicator lamp in the ¬button lights
up.
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
automatically sets the blower output to the optimum defrosting effect. As a result, the
airflow may increase or decrease automat-
ically after the ¬button is pressed.
iYou can adjust the blower output man-
ually while the "Windshield defrosting"
function is in operation:
RAir-conditioning system: turn airflow
control Acounter-clockwise or clock-
wise (
Ypage 131).
RDual-zone automatic climate control:
press the óorô 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-zone climate 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 131).
Dual-zone automatic climate control: turn
temperature control :orE counter-
clockwise or clockwise (
Ypage 133).
MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles 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 con-
trol switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Operating the climate control systems139
Climate control

Defrosting thewindows
Windows fogged up on th einside
Air-conditionin gsyste m
XActivat eth e¿ "Coolin gwit hair dehu-
midification "function .
XIf thewindows continue to fo gup, activat e
th e¬ "Windshield defrosting" function .
iYou should only selectthis setting until
th ewindshield is clear again .
Dual-zone automati cclimat econtro l
XActivateth e¿ "Coolin gwit hair dehu-
midification "function .
XActivateautomatic mode Ã.
XIf thewindows continue to fo gup, activat e
th e¬ "Windshield defrosting" function .
iYou should only selectthis setting until
th ewindshield is clear again .
Windows fogged up on th eoutsid e
XActivat eth ewindshield wipers .
XSetth eair distribution to PorO.
iYou should only selec tthis setting until
th ewindshield is clear again .
Rearwindow defroster
General notes
The rea rwindow defroster has ahig hcurren t
draw. You should therefore switch it of fas
soo nas th erea rwindow is clear .Otherwise ,
th erea rwindow defroster switches of fauto-
matically after severa lminutes.
If th ebattery voltage is to olow, th erea rwin -
dow defroster may switch off.
Switchin gon/of f
XTurnth eSmartKey to position 2in th eigni-
tion loc k (
Ypage 147).
XPress th e¤ button.
The indicator lamp in th e¤ buttonlights
up or goe sout .
140Operating the climate control systems
Climate control

Problems with the rear window defroster
ProblemPossible causes/consequences andMSolutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.The battery has not been sufficiently charged.
XSwitch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again.
Switching air-recirculation mode
on/off
General notes
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in particu-
lar at low temperatures. Only use air-recircu-
lation mode briefly to prevent the windows
from fogging up.
The operation of air-recirculation mode is the
same for all control panels.
Switching on/off
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 147).
XTo activate: press theebutton.
The indicator lamp in the ebutton lights
up.
Air-recirculation mode switches on automat-
ically:
Rat high outside temperatures
Rat high levels of pollution
When air-recirculation mode is activated
automatically, the indicator lamp in the e
button is not lit. Outside air is added after
about 30 minutes.
XTo deactivate: press theebutton.
The indicator lamp in the ebutton goes
out.
iAir-recirculation mode deactivates auto-
matically:
Rafter approximately five minutes at out-
side temperatures below approximately
45 ‡ (7 †)
Rafter approximately five minutes if the
"Cooling with air dehumidification" func-
tion is deactivated
Rafter approximately 30 minutes at out-
side temperatures above approximately
45 ‡ (7 †) if the cooling with air dehu-
midification function is activated
Switching the residual heat on or off
General notes
The residual heat function is only available in
vehicles for Canada with dual-zone automatic
climate control.
It is possible to make use of the residual heat of the engine to continue heating the vehicle
for approximately 30 minutes after the engine
has been switched off. The heating time
depends on the set interior temperature.
iThe blower will run at a low speed regard-
less of the airflow setting.
iIf you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
iYou cannot use the ventilation to cool the
vehicle interior to a temperature lower than
the outside temperature.
Operating the climate control systems141
Climate control

Switching on/off
XTurn the key to position0in the ignition
lock or remove it (
Ypage 147).
XTo activate: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
XTo deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
iResidual heat is deactivated automati-
cally:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
Rkeep the air inlet between the windshield
and the hood free of blockages, such as ice, snow or leaves.
Rnever cover the air vents or air intake grillesin the vehicle interior.
iFor optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position.
Setting the center air vents
XTo open the center air vents: turn the
adjuster in one of center air vents :coun-
ter-clockwise.
XTo close the center air vent: turn the
adjuster in one of center air vents :clock-
wise as far as it will go.
Setting the side air vents
:Side window defroster vent
;Side air vent
XTo open a side air vent: turn the adjuster
in side air vent ;to the left.
XTo close a side air vent: turn the adjuster
in side air vent ;clockwise as far as it will
go.
142Air vents
Climate control