2014 MERCEDES-BENZ SLK-CLASS ROADSTER climate settings

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 24).Overview of climate control systems
Important safety notes
Observe the settings recommended on the
following pages. The windows could
otherwise fog up.
To prevent the windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air
dehumidification function
R switch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control can only be operated when
the engine is running. Optimum operation is
only achieved with the side windows and roof
closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 133).
i When the weather is warm, ventilate the
vehicle for a brief period. This will speed up
the cooling process and the desired vehicle
interior temperature will be reached more
quickly. i
The integrated filter can filter out most
particles of dust, and completely filters out
pollen. A clogged filter reduces the amount
of air supplied to 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 conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance
Booklet. 122
Overview of climate control systemsClimate control

=
Sets the air distribution (Y page 130)
? Defrosts the windshield (Y page 131)
A Activates/deactivates cooling with air dehumidification (Y page 127)
B Activates/deactivates air-recirculation mode (Y page 133)
C Sets the airflow (Y page 130)
D Switches the rear window defroster on/off (Y page 131)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of notes and
recommendations to help you use the air-
conditioning system optimally.
R Switch on climate control using the ¿
button. The indicator lamp in the ¿
button lights up.
R Set the temperature to 72 ‡ (22 †).
R Recommendation for air distribution in
winter: set theOand¯ settings.
Recommendation for air distribution in
summer: set thePsetting.
R Only use the "Windshield defrosting"
function briefly until the windshield is clear
again.
R Only 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.
ECO start/stop function During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require full climate
control capacity, the ECO start/stop function
can be deactivated by pressing the ECO
button (Y page 145). 124
Overview of climate control systemsClimate control

USA only
:
To set the temperature, left (Y page 129)
; To defrost the windshield (Y page 131)
= To switch maximum cooling on/off (Y page 131)
? To switch cooling with air dehumidification on/off (Y page 127)
A To switch the rear window defroster on/off (Y page 131)
B To set the temperature, right (Y page 129)
C To activate/deactivate air-recirculation mode (Y page 133)
D To set the air distribution (Y page 130)
E To increase the airflow (Y page 130)
F To reduce the airflow (Y page 130)
G To switch climate control on/off (Y page 127)
H To set climate control to automatic (Y page 129)Information about using dual-zone
automatic climate control
Automatic climate control The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
R Activate climate control using the Ãand
¿ buttons or the Ábutton on the
control panel of the climate control. The
indicator lamps in the Ãand¿
buttons or the Ábutton light up.
R Set the temperature to 72 ‡ (22 †). R
Only use the "Windshield defrosting"
function briefly until the windshield is clear
again.
R Only 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.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side as well. The
indicator lamp in the ábutton goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior 126
Overview of climate control systemsClimate control

when the ignition is switched off. The
residual heat function can only be activated
or deactivated with the ignition switched
off.
ECO start/stop function During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require full climate
control capacity, the ECO start/stop function
can be deactivated by pressing the ECO
button (Y page 145). Operating the climate control
systems
Switching climate control on/off
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
i Activate climate control primarily using
the à button (Y page 129).
Air-conditioning system X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To activate: turn airflow control C
clockwise to the desired position (except
position 0) (Ypage 123).
X To deactivate: turn airflow control C
counter-clockwise to position
0(Y page 123). Dual-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
X To switch off: press the^button.
The indicator lamp in the ^button lights
up. Activating/deactivating cooling with
air dehumidification
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.Operating the climate control systems
127Climate control

Setting the air distribution
Air-conditioning system X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X Press one or more of the P,O,
¯ buttons.
The corresponding indicator lamp lights up
briefly.
The following air distribution settings can be
selected:
¯ Directs air through the defroster vents
O Directs air through the footwell air
vents
P Directs air through the center and side
air vents
i You can also activate several air
distribution settings simultaneously. To do
this, press multiple air distribution buttons.
The air is then directed through various
vents.
Dual-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X Press the _button repeatedly until the
desired symbol appears in the display.
The following air distribution settings can be
selected:
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 2a
Directs air through the defroster and
footwell vents
_ Directs the airflow through the
defroster, center, side and footwell air
vents3
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. You can only close the side air
vents, by fully closing the adjuster on the
side air vents (Y page 135). Setting the airflow
Air-conditioning system X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To increase/reduce: turn controlC
clockwise or counter-clockwise
(Y page 123).
Dual-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To increase/reduce: press theKor
I button. Switching the ZONE function on/off
This function is only available with dual-zone
automatic climate control on vehicles for
Canada.
X To switch on: 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.
X To switch off: press buttoná.
The indicator lamp in the ábutton goes
out. The temperature setting for the
2 Canada only.
3 Canada only. 130
Operating the climate control systemsClimate control

driver's side is adopted for the front-
passenger side.
Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
Switch off the "Windshield defrosting"
function as soon as the windshield is clear
again.
X Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To activate: press the¬button.
The indicator lamp in the ¬button lights
up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X Press the Ãbutton.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode. 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. X
To activate: press theÙbutton.
The indicator lamp in the button lights up.
X To activate: press off-road button Ù
again.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the ¿/Ácooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the ¬ "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Activate the windshield wipers.
X Press the _button repeatedly until the
P orO symbol appears in the
display.
i You should only select this setting until
the windshield is clear again. 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.Operating the climate control systems
131Climate control