2017 MERCEDES-BENZ S-Class CABRIOLET climate control

Cockpit
FunctionPage
:Steering wheel paddle shift-
ers135
;Combination switch108
=Horn
?Instrument cluster34
ADIRECT SELECT lever131
BOverhead control panel38
CControl panel for:
ÜLowering the rear seat
head restraints97
Moves the seat-belt extender
forwards44
PASSENGER AIRBAG indica-
tor lamps42
Adjusting the brightness of
the instrument lighting and
the multimedia system dis-
play
DClimate control systems114
EIgnition lock124
Start/Stop button124
FunctionPage
FAdjusts the steering wheel101
Steering wheel heating101
GCruise control lever149
HElectric parking brake142
IDiagnostics connection29
JOpens the hood272
KLight switch107
LControl panel for:
Activating Steering Assist
and Stop&Go Pilot156
Switching on Active Lane
Keeping Assist184
Deactivating PARKTRONIC161
Switching on the 360° cam-
era172
Activating Night View Assist178
Switching on the head-up
display189
Cockpit33
At a glance

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the 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
Climate control regulates the temperature and
air humidity in the vehicle interior. The air filter
cleans the air, thus improving the interior cli-
mate.
The "Cooling with air dehumidification" function
is only available when the engine is running.
Optimum climate control is only achieved with
the side windows and roof closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 126).
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 120).
To enable the air conditioning, pollutant moni-
toring and air filtering systems to function cor-
rectly, an interior filter must be used at all times. Ensure that the filter is properly installed and that the filter housing in the engine compart-
ment is correctly and tightly sealed by the cover
at all times during operation. Use filters that
have been recommended and approved by
Mercedes-Benz. Always have service work car-
ried out at a qualified specialist workshop.
The integrated filter filters out most particles of dust and soot and completely filters out pollen.
It also reduces gaseous pollutants and odors. A
clogged filter reduces the amount of air suppliedto the vehicle interior. For this reason, you
should always observe the interval for replacing
the filter, which is specified in the Maintenance
Booklet. As it depends on environmental condi- tions, e.g. heavy air pollution, the interval may
be shorter than stated in the Maintenance Book-
let.
iWhen the weather is warm, ventilate the
vehicle for a brief period. This will speed up
the cooling process and the desired interior
temperature will be reached more quickly.
iIt is possible that the blower may be activa-
ted automatically 60 minutes after the Smart-
Key has been removed depending on various
factors, e.g. the outside temperature. In vehi- cles with the KEYLESS-GO or KEYLESS-GO
start function, the blower can switch on auto-
matically after the engine has been switched
off and the door opened. The vehicle is then
ventilated for 30 minutes to dry the automatic
climate control.
114Overview of climate control systems
Climate control

Automa tic climate control panel
Example: automatic climat econtrol panel
:Sets climat econtrol to automatic, lef t (Ypage 117)
;Sets thetemperature, lef t (Ypage 117)
=Sets theairflow, lef t (Ypage 118)
?Activates/deactivates air-recirculation mod e (Ypage 119)
ADefroststh ewindshield (Ypage 118)
BCalls up theclimat econtrol men uof th emultimedia system (Ypage 248)
CSwitches therear window defroste ron/off (Ypage 119)
DSwitches coolin gwit hair dehumidification on/off (Ypage 116)
Switches th eresidual heat on/off (
Ypage 120)
ESets theairflow, right (Ypage 118)
FSets thetemperature, right (Ypage 117)
GSets climatecontrol to automatic, right (Ypage 117)
Optimum use ofautomatic climate
control
Climate control system
Below, you can fin d anumber of note sand rec -
ommendation sto help you use climat econtrol
optimally.
RActivat eclimat econtrol usin gth eÃ
rocke rswitch .The indicator lamp in th eÃ
rocke rswitch lights up. The "Cooling wit hair
dehumidification "function is activated in
automatic mode.
RSe tth etemperature to 72 ‡(22 †).
ROnly use th e"Windshield defrosting "function
briefl yuntil th ewindshield is clear again .
ROnly use air-recirculation mod ebriefly, e.g. if
there are unpleasant outside odor sor when in
a tunnel. The windows could otherwise fog up,
since no fresh air is draw nint oth evehicl ein
air-recirculation mode.
RUse th eresidual heat function if you want to
heat or ventilat eth evehicl einterior when th e
ignition is switched off .The residual heat
function can only be activated or deactivated
wit hth eignition switched off .The residual
heat function is switched off when th eignition
is switched on .
ECO start/stop function
During automatic engin eswitch-off ,th eclimat e
control system only operate sat areduce dcapa-
city. If you require th efull climat econtrol output ,
Overview of climate control systems115
Climate control

you can switch off theECO start/sto pfunction
by pressing th eECO butto n (Ypage 129).
Operating the climate contro l sys-
tems
Activating/deactivating climate con-
tr ol
Gene ral notes
Whe nth eclimat econtrol is switched off ,th eair
supply and air circulation are also switched off .
The windows could fog up. Therefore ,switch off
climat econtrol only briefl y
Switc hon climat econtrol primarily usin gth e
à rockerswitch (
Ypage 117).
Activating/deactivating
XTurn theSmartKey to position 2in th eignition
loc k (Ypage 124).
XTo activate: set theairflow to level 1or higher
usin gth eK rockerswitch .
XTo deactivate: set theairflow to level 0usin g
th eK rockerswitch .
Switching cooling with air dehumidi-
ficationon/off
Gene ral notes
If you deactivat eth e"Coolin gwit hair-dehumid -
ification "function ,th eair inside th evehicl ewill no
tbe cooled .The air inside th evehicl ewill also
no tbe dehumidified. The windows can fog up
mor equickly. Therefore ,only deactivat eth e
"Coolin gwit hair-dehumidification "function
briefly.
The "Coolin gwit hair dehumidification "function
is only available when th eengin eis running .The
air inside th evehicl eis cooled and dehumidifie d
accordin gto th etemperature selected.
Condensation may dri pfrom th eunderside of
th evehicl ewhen it is in coolin gmode. This is
normal and no t asign that there is amalfunc -
tion .
Acti vating/deactivating
XTo activate: press theÁ rockerswitch up
or down .
The indicato rlamp abov eth erocke rswitch
lights up.
XTo switch off :press th eÁ rockerswitch
up or down .
The indicato rlamp abov eth erocke rswitch
goe sout .
Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences and MSolutions
The indicatorlamp in th e
Á buttonflashes
three times or remain s
off .Cooling wit hair
dehumidification can
also no longer be activa-
te dusin gth emultimedia
system; see th eDigital
Operator' sManual.Cooling wit hair dehumidification has been deactivated due to amal-
function .
XVisitaqualified specialist workshop .
116Operating the climate control systems
Climate control

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.
During automatic controlling, the "Cooling with
air dehumidification" function is activated.
The system automatically detects whether the
soft top is open or closed and automatically
adjusts the air settings depending on the soft
top status.
Setting climate control to automatic
XTurn the SmartKey to position 2in the ignition
lock (Ypage 124).
XSet the desired temperature using the w
rocker switch.
XTo activate: press theÃrocker switch up
or down.
The indicator lamp in the Ãrocker switch
lights up.
XTo switch to manual operation: press the
K rocker switch up or down.
The indicator lamp in the Ãrocker switch
goes out.
In automatic mode, if you adjust the airflow or
air distribution manually, the indicator lamp on
the à rocker switch goes out. The function
which has not been changed manually, however,
continues to be controlled automatically. When
the manually set function switches back to auto-
matic mode, the indicator lamp on the Ã
rocker switch lights up again.
Adjusting the climate mode settings
In automatic mode you can select the following
airflow settings for the driver's and front-
passenger areas:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUSE low airflow, slightly warmer and draft- free setting
XTo set:set the climate mode using the mul-
timedia system (Ypage 248).
Setting the temperature
General notes
You can set the temperature separately for the
following areas:
Rfront footwells, left and right
Rdriver and front passenger area
Setting the temperature
XTurn the SmartKey to position 2in the ignition
lock (Ypage 124).
XTo increase or reduce: press thew
rocker switch up or down.
XOnly change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the footwell temperature
The footwell temperature for the driver and front
passenger can be set separately using the mul-
timedia system (see the Digital Operator's Man-
ual).
Setting the air distribution
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
a Directs air through the defroster and
footwell vents
W Sets the air distribution to automatic
Operating the climate control systems117
Climate control

Setting the air distribution via the mul-
timedia system
The air distribution for the left and right sides of
the driver's and front-passenger areas can be
adjusted using the multimedia system (see the
Digital Operator's Manual).
Setting the airflow
General notes
You can select different airflow settings for the
driver's and front-passenger sides.
Setting the airflow
XTurn the SmartKey to position 2in the ignition
lock (Ypage 124).
XTo increase or reduce: press theK
rocker switch up or down.
iYou can also set the airflow using the mul-
timedia system (see the Digital Operator's
Manual).
Activating or deactivating the syn-
chronization function
Climate control can be set centrally using the
synchronization function. The settings for tem-
perature, air distribution and airflow on the driv-
er's side are adopted for the front-passenger
side.
XTo activate or deactivate: activate or deac-
tivate the "Synchronization" function via the
multimedia system (see the Digital Operator's
Manual).
The synchronization function deactivates if the
settings for the front-passenger side are
changed.
Defrosting the windshield
General notes
You can use this function to defrost the wind-
shield or to clear a fogged up windshield or front
side windows on the inside.
Switch off the "Windshield defrosting" function
as soon as the windshield is clear again.
Switching the "Windshield defrosting"
function on or off
XTurn the SmartKey to position 2in the ignition
lock (Ypage 124).
XTo activate: press the¬rocker switch on
the front control panel up or down.
The indicator lamp in the ¬rocker switch
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
Rwindshield heating on
Rcooling with air dehumidification on
XTo deactivate: press the¬rocker switch
up or down.
The indicator lamp in the ¬rocker switch
goes out. The previously selected settings are restored. Air-recirculation mode remains
deactivated.
Defrosting the windows
Windows fogged up on the inside
XActivate the "Cooling with air dehumidifica-
tion" function with the Árocker switch.
or
XActivate the "Cooling with air dehumidifica-
tion" function via the multimedia system; see
the Digital Operator's Manual.
XSwitch on automatic mode using the Ã
rocker switch.
XIf the windows continue to fog up: activate the
"Windshield defrosting" function using the
¬ rocker switch. The windshield heating is
switched on.
iYou should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
XActivate the windshield wipers.
XSwitch on automatic mode using the Ã
rocker switch.
118Operating the climate control systems
Climate control

iIf you clean the windows regularly, they do
not fog up so quickly.
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 124).
XPress the ¤rocker switch up or down.
The indicator lamp in the ¤rocker switch
lights up or goes out.
Problems with the rear window defroster
ProblemPossible causes/consequences and MSolutions
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 also temporarily deactivate the flow of
fresh air manually if unpleasant odors are enter-
ing 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.
When the soft top is open, air-recirculation
mode is deactivated and cannot be activated
manually.
Activating/deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 124).
XTo activate: press thegrocker switch up
or down.
The indicator lamp in the grocker switch
lights up. Air-recirculation mode switches on automati-
cally:
Rat high outside temperatures
Rat high levels of pollution
Rin a tunnel
The indicator lamp in the grocker switch is
not lit when automatic air-recirculation mode is
activated. Outside air is added after about
30 minutes.
XTo deactivate: press thegrocker switch
up or down.
The indicator lamp in the grocker switch
goes out.
Air-recirculation mode deactivates automati-
cally:
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
Operating the climate control systems119
Climate control

Switching the residual heat on or off
General notes
Once the engine is switched off, it is possible to
make use of the residual heat of the engine to
continue heating or ventilating the front com-
partment of the vehicle for approximately
30 minutes.
The heating or ventilation time depends on the
temperature that has been set.
Activating/deactivating
XTurn the SmartKey to position 0in the ignition
lock or remove it (Ypage 124).
XTo activate: press theÁrocker switch up
or down.
The indicator lamp in the Árocker switch
lights up.
The blower will run at a low speed regardless of
the airflow setting.
If you activate the residual heat function at high
temperatures, only the ventilation will be acti-
vated. The blower runs at medium speed.
XTo deactivate: press theÁrocker switch
up or down.
The indicator lamp in the Árocker switch
goes out.
Residual heat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Perfume atomizer
Operating the perfume atomizer
GWARNING
If children open the vial, they could drink the
perfume or it could come into contact with
their eyes. There is a risk of injury. Do not
leave children unsupervised in the vehicle.
If the perfume liquid has been drunk, consult
a doctor. If perfume comes into contact with
your eyes or skin, rinse the eyes with clean
water. If you continue to experience difficul-
ties, consult a doctor.
HEnvironmental note
Full vials must not be dis-
posed of with household
waste. They must be collec-
ted separately and recycled
to protect the environment.
Dispose of full vials in an
environmentally responsible
manner and take them to a
harmful substance collec-
tion point.
:Vial lid
;Vial
The perfume atomizer helps to improve driving
comfort.
Via the multimedia system you can:
Rswitch the perfume atomizer on/off
Rregulate the perfume intensity (Ypage 248).
The following conditions can affect your percep-
tion of the perfume intensity:
Roperating mode of the climate control system
Rinterior temperature
Rtime of year or day
Rair humidity
Rphysiological condition of occupants, e.g. fati-
gue or hunger
The perfume atomizer can only be operated
when the climate control system is switched on
and is only active when the glove box is closed.
The perfume atomizer is provided with a pre-fil- led vial. You can also choose from a variety of
filled perfume vials and an empty vial which you
can fill yourself.
If you refill an empty perfume vial, observe the
separate information sheet attached to the vial.
120Operating the climate control systems
Climate control