climate control MERCEDES-BENZ CLS-Class 2016 W218 User Guide

USA only
:
Sets the temperature, left (Ypage 121)
;Defrosts the windshield (Ypage 122)
=Switches the maximum cooling MAX COOL on or off (Ypage 122)
?Switches cooling with air dehumidification on/off (Ypage 120)
ASwitches the rear window defroster on/off (Ypage 123)
BSets the temperature, right (Ypage 121)
CSwitches air-recirculation mode on/off (Ypage 124)
DSets the air distribution (Ypage 121)
EIncreases the airflow (Ypage 122)
FReduces the airflow (Ypage 122)
GActivates/deactivates climate control (Ypage 119)
HSets climate control to automatic (Ypage 120)
116Overview of climate control systems
Climate control

Control panel for 3-zone automatic climate control
Canadaonly
Front control panel
:Sets the temperature, left (Ypage 121)
;Defrosts the windshield (Ypage 122)
=Switches the residual heat on or off (Ypage 124)
?Switches cooling with air dehumidification on/off (Ypage 120)
ASwitches the rear window defroster on/off (Ypage 123)
BSets the temperature, right (Ypage 121)
CSwitches the ZONE function on/off (Ypage 122)
DActivates/deactivates climate control (Ypage 119)
ESets the air distribution (Ypage 121)
FIncreases the airflow (Ypage 122)
GReduces the airflow (Ypage 122)
HAdjusts the climate mode settings (Ypage 121)
ISwitches air-recirculation mode on/off (Ypage 124)
JSets climate control to automatic (Ypage 120)
Rear control panel
KIncreases the airflow (Ypage 122)
LReduces the airflow (Ypage 122)
MDisplay
NReduces the temperature (Ypage 121)
OIncreases the temperature (Ypage 121)
Overview of climate control systems117
Climate control

USA only
Front control panel
:Sets the temperature, left (Ypage 121)
;Defrosts the windshield (Ypage 122)
=Switches the maximum cooling MAX COOL on or off (Ypage 122)
?Switches cooling with air dehumidification on/off (Ypage 120)
ASwitches the rear window defroster on/off (Ypage 123)
BSets the temperature, right (Ypage 121)
CSwitches the ZONE function on/off (Ypage 122)
DActivates/deactivates climate control (Ypage 119)
ESets the air distribution (Ypage 121)
FIncreases the airflow (Ypage 122)
GReduces the airflow (Ypage 122)
HAdjusts the climate mode settings (Ypage 121)
ISwitches air-recirculation mode on/off (Ypage 124)
JSets climate control to automatic (Ypage 120)
Rear control panel
KIncreases the airflow (Ypage 122)
LReduces the airflow (Ypage 122)
MDisplay
NReduces the temperature (Ypage 121)
OIncreases the temperature (Ypage 121)
Notes on using automatic climate
control
Climate control system
Below, you can find a number of notes and rec-
ommendations to help you use climate control
optimally.
RActivate climate control using the Ãand
¿ buttons. The indicator lamps above the
à and¿ buttons light up.
RIn automatic mode, you can also use the ñ
button to set the climate mode (FOCUS,
MEDIUM or DIFFUSE). The MEDIUM level is
recommended.
RSet the temperature to 72 ‡ (22 †).
118Overview of climate control systems
Climate control

ROnly use the "Windshield defrosting" function
briefly until the windshield is clear again.
ROnly use air-recirculation mode briefly, e.g. if
there are unpleasant outside odors or when in
a tunnel. The windows could otherwise fog up,
since no fresh air is drawn into the vehicle in
air-recirculation mode.
RUse the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side and the rear compart-
ment as well. The indicator lamp above the
á button goes out.
RVehicles with 3-zone automatic climate con-
trol: use 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 deactivated with the ignition switched off.
RIf you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display. You will see the current set-
tings of the various climate control functions.
ECO start/stop function
During automatic engine switch-off, the climate
control system only operates at a reduced capa- city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 131).
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
iActivate climate control primarily using the
à button (Ypage 120).
Activating/deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
Operating the climate control systems119
Climate control

Switching cooling with air dehumidification on/off
General notes
If you deactivate the "Cooling with air-dehumidification" function, the air inside the vehicle will not
be cooled. The air inside the vehicle will also not be dehumidified. The windows can fog up more
quickly. Therefore, deactivate the cooling with air-dehumidification function only briefly.
The "Cooling with air dehumidification" function is only available when the engine is running. 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 malfunction.
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.
Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences and MSolutions
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 a mal-
function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-
tained automatically at a constant 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.
Automatic control
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
i3-zone automatic climate control: when
automatic mode is activated, you can set the
climate mode (
Ypage 121).
XTo switch to manual mode: press the_
button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
120Operating the climate control systems
Climate control

Adjusting the climatemode settings
The "Se tclimat emode" function is only available
wit h3-zone automatic climat econtrol .
You can select th efollowin gclimat emod eset -
ting sin automatic mode:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUS Elow airflow, slightly warmer and draft-
free setting
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XPress the Ãbutton.
XPress the ñbutton repeatedly until the
desired climate mode appears in the display.
Setting the temperature
Dual-zone automatic climate control
Different temperatures can be set for the driv-
er's and front-passenger sides.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XTo increase or reduce: turn temperature
control :orB counter-clockwise or clock-
wise (
Ypage 115).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
3-zone automatic climate control
You can select different temperature settings
for the driver's and front-passenger sides as well
as for the rear compartment.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XTo increase or reduce the temperature in
the front compartment: turn temperature
control :orB counter-clockwise or clock-
wise (
Ypage 117).
Only change the temperature setting in small increments. Start at 72 ‡ (22 †).
XTo increase or reduce the temperature in
the rear compartment using the front con-
trol panel: press theábutton.
The indicator lamp in the ábutton goes
out. The temperature setting for the driver's side
is adopted for the rear compartment and the
front-passenger side.
XTurn temperature control
:counter-clock-
wise or clockwise (Ypage 117).
Only change the temperature setting in small increments. Start at 72 ‡ (22 †).
XTo increase or reduce the temperature in
the rear compartment using the rear con-
trol panel: press therors button on
the rear control panel.
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the air distribution
Air distribution settings
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
¯ Directs air through the defroster vents
b Directs the airflow through the defroster,
center and side air vents (Canada only)
a Directs air through the defroster and
footwell vents
_ Directs the airflow through the defroster
vents, the center and side air vents as
well as the footwell air vents (Canada
only)
iRegardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed
when the controls on the side air vents are
turned downwards.
Setting the air distribution
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XPress the _button repeatedly until the
desired symbol appears in the display.
Operating the climate control systems121
Climate control

Setting the airflow
XTurn the SmartKey to position2in the ignition
lock (Ypage 127).
XTo increase: press theKbutton.
XTo reduce: press theIbutton.
iYou can use 3-zone automatic climate con-
trol to set the airflow in the rear compartment
separately.
If the battery is not sufficiently charged, blower output may be reduced. As soon as the battery
is sufficiently charged, full blower output will be
available.
Switching the ZONE function on/off
XTo activate: press theábutton.
The indicator lamp in the ábutton lights
up.
Dual-zone automatic climate control: the tem-
perature setting for the driver's side is not
adopted for the front-passenger side.
3-zone automatic climate control: the tem-
perature setting for the driver's side is not
adopted for the front-passenger side and the
rear compartment.
XTo deactivate: press theábutton.
The indicator lamp in the ábutton goes
out.
Dual-zone automatic climate control: the tem-
perature setting for the driver's side is adop-
ted for the front-passenger side.
3-zone automatic climate control: the tem-
perature setting for the driver's side is adop-
ted for the front-passenger side and the rear
compartment.
Defrosting the windshield
You can use this function to defrost the wind-
shield or to clear a fogged up windshield or side
windows on the inside.
Switch off the "Windshield defrosting" function
as soon as the windshield is clear again.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
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
If the battery is not sufficiently charged, blower output may be reduced. Once the battery is suf-
ficiently charged again, full blower output will be
available again.
XTo deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
MAX COOL maximum cooling
The MAX COOL function is only available in vehi-
cles for the USA.
MAX COOL is only operational when the engine
is running.
XTo activate: press theÙbutton.
The indicator lamp in the Ùbutton lights
up.
XTo deactivate: press theÙbutton.
The indicator lamp in the Ùbutton 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
XActivate the ¿cooling with air dehumidi-
fication function.
XActivate automatic mode Ã.
XAdjust the side air vents so that the warmed
air is directed to the side windows.
XIf the windows continue to fog up, activate the
"windshield defrosting" function ¬.
122Operating the climate control systems
Climate control

iYou should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
XPress the _button repeatedly until the
P orO symbol appears in the display.
XAdjust the side air vents so that no air is
directed to the side windows.
Rear window defroster
General notes
The rear window defroster has a high current
draw. You should therefore switch it off as soon
as the rear window is clear. Otherwise, the rear window defroster switches off automatically
after several minutes.
If the battery voltage is too low, the rear window
defroster may switch off.
Activating or deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XPress the ¤button.
The indicator lamp in the ¤button lights
up or goes out.
Operating the climate control systems123
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 vehicle will
then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Activating or deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XTo activate: press thegbutton.
The indicator lamp in the gbutton lights
up.
iDual-zone automatic climate control: air-
recirculation mode is automatically activated
at high outside temperatures.
3-zone automatic climate control: air-recircu-
lation mode is automatically activated at high
levels of pollution or at high outside temper-
atures.
When air-recirculation mode is activated
automatically, the indicator lamp above the
g button does not light up. Outside air is
added after about 30 minutes.
XTo deactivate: press thegbutton.
The indicator lamp in the gbutton goes
out.
iAir-recirculation mode deactivates auto-
matically:
Rafter approximately five minutes at outside
temperatures below approximately 41 ‡
(5 †)
Rafter approximately five minutes if cooling
with air dehumidification is deactivated
Rafter approximately 30 minutes at outside
temperatures above approximately 41 ‡
(5 †) if the "Cooling with air dehumidifica-
tion" function is activated
Switching the residual heat on or off
General notes
The residual heat function is only available 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.
Activating/deactivating
XTurn the SmartKey to position 0in the ignition
lock or remove it (Ypage 127).
XTo activate: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
iIf the residual heat function is activated, the
windows may fog up on the inside.
iThe blower will run at a low speed regardless
of the airflow setting.
124Operating the climate control systems
Climate control

iIf you activate the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
XTo deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
Residual heat is deactivated automatically:
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 grilles in
the vehicle interior.
Setting the air vents
Example
:
Defroster vent
;Side air vent
=Thumbwheel for side air vent
XTo open or close: turn thumbwheel=up or
down.
Setting the glove box air vent
!
Close the air vent when heating the vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu-
midification" function. Otherwise, tempera-
ture-sensitive items stored in the glove box
could be damaged.
:Air vent control
;Air vent
When the climate control system is activated,
the glove box can be ventilated, for instance to
cool its contents. The level of airflow depends on the airflow and air distribution settings.
XTo open or close: turn control:to the
clockwise or counter-clockwise.
Air vents125
Climate control
Z