2013 MERCEDES-BENZ SL-CLASS ROADSTER window

USA only
:
Sets the temperature, left ( Y page 127)
; Sets climate control to automatic (Y page 126)
= Defrosts the windshield ( Y page 128)
? Switches the maximum cooling MAX COOL on/off (Y page 128)
A Activates/deactivates cooling with air dehumidification ( Y page 125)
B Switches the rear window defroster on/off ( Y page 129)
C Switches the ZONE function on/off ( Y page 128)
D Sets the temperature, right ( Y page 127)
E Switches climate control on/off ( Y page 125)
F Sets the air distribution (Y page 127)
G Sets the airflow ( Y page 127)
H Sets the climate mode (Y page 126)
I Activates/deactivates air-recirculation mode (Y page 130) Information regarding the use of
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 à and
¿ buttons. The indicator lamps in the
à and ¿ buttons light up.
R In automatic mode, you can also use the
ñ button to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM level is recommended. R
Set the temperature to 72 ‡ (22 †
).
R Only use the "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 as in air-recirculation
mode no fresh air is drawn into the vehicle.
R Use the ZONE function to adopt the
temperature settings on the driver's side124
Overview of climate control systems
Climate control

for the front-passenger side as well. The
indicator
lamp
in the á button goes out.
R 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. Operating the climate control
systems
Activating/deactivating climate
control
General notes G
WARNING
When the climate control system is switched
off, the outside air supply and circulation are
also switched

off. Only choose this setting for
a short time when the retractable hardtop
(vario-roof) is closed. Otherwise, the windows
could fog up, impairing visibility and
endangering you and others.
i Switch on climate control primarily using
the à button ( Y page 126).
Activating/deactivating X
Turn the SmartKey to position 2 in the
ignition lock.
X To switch on: press button Ã.
The indicator

lamp in the à button 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 come
into effect again.
X To switch off: press the ^ button.
The indicator

lamp in the ^ button lights
up. Activating/deactivating cooling with
air dehumidification
General notes G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are

warm. The windows can fog up
more quickly. This may prevent you from
observing the traffic conditions, thereby
causing an accident.
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.
i The cooling with air dehumidification
function uses refrigerant R1234yF. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Activating/deactivating Example: ¿ buttonOperating the climate control systems
125
Climate control Z

X
To activate: press the ¿ button.
The indicator
lamp in the ¿ button lights
up.
X To 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 When you press the
¿ button, the
indicator lamp in the button flashes three
times or

remains off. You can no longer switch
on the cooling with air dehumidification
function.
X Visit a qualified specialist workshop. Setting climate control to automatic
G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are

warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others. In automatic mode, the set temperature is
maintained
automatically

at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification is also activated. If desired, cooling with air
dehumidification can be deactivated.
X
Turn the SmartKey to position 2 in the
ignition lock.
X Set the desired temperature.
X To activate: press the à button.
The indicator

lamp in the à button lights
up. Automatic air distribution and airflow
are activated.
i Dual-zone automatic climate control:
when automatic

mode is activated, you can
select a climate mode ( Y page 126).
X To switch off: press the _ button.
or
X Press the I or K button.
The indicator

lamp in the à button goes
out. Adjusting the climate mode settings
(AIR FLOW)
You can select the following climate mode
settings in automatic mode:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSE low airflow that is set slightly warmer and with less draft
The climate mode settings are especially
effective at high outside temperatures. Example: ñ button126
Operating the climate control systems
Climate control

Switching the ZONE function on/off
X
To switch on: press the á button.
The indicator

lamp in the á button lights
up. The temperature setting for the driver's
side is not adopted for the front-passenger
side.
X To switch off: press the á button.
The indicator

lamp in the á button goes
out. The temperature setting for the
driver's side is adopted for the front-
passenger side. Defrosting the windshield
Example:
¬ button
You can use this function to defrost the
windshield or to demist the inside of the
windshield and the side windows.
Switch off

the defrosting function as soon as
the windshield is clear again. X
Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the ¬ button.
The indicator

lamp in the ¬ button lights
up.
The climate control system switches to the
following functions:
R cooling with air dehumidification on
R high airflow (depending on the outside
temperature)
R high temperature (depending on the
outside temperature)
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To switch off: press the ¬ button.
The indicator

lamp in the ¬ button goes
out. The previously selected settings come
into effect again. The cooling with air
dehumidification function remains on. Air-
recirculation mode remains deactivated.
or
X Press the à button.
The indicator

lamp in the ¬ button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn temperature control : or D
clockwise or counter-clockwise.
or
X Press the K or I button. MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA. 128
Operating the climate control systems
Climate control

MAX COOL is only operational when the
engine is running.
X
To activate: press the Ù button.
The indicator lamp in the button lights up.
X To deactivate: press the Ù button
again.
The indicator
lamp goes out. The previously
selected settings come into effect again.
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 ¿ cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function (Y

page 128).
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 or O symbol appears in the
display.
i You should only select this setting until
the windshield is clear again. Rear window defroster
Activating/deactivating G
WARNING
Clear all windows of ice or snow before setting
off. Otherwise, impaired visibility could
endanger you and others. The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the window is clear. It otherwise
switches off automatically after several
minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X
Turn the SmartKey to position 2 in the
ignition lock.
X Press the ¤ button.
The indicator

lamp in the ¤ button lights
up or goes out.
Problems with the rear window
defroster The rear window defroster has deactivated
prematurely or cannot be activated.
X
Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically. Operating the climate control systems
129
Climate control Z

Activating/deactivating air-
recirculation mode
G
WARNING
At low outside temperatures, only switch over
to air-recirculation mode for brief periods.
Otherwise, the windows could fog up, thus
impairing visibility and endangering yourself
and others. This may prevent you from
observing the traffic conditions and thereby
cause an accident. X
Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the g button.
The indicator

lamp in the g button lights
up.
i Air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-
recirculation mode is activated
automatically, the indicator lamp in the
g button is not lit.
Outside air

is added after about 30minutes.
X To switch off: press the g button.
The indicator

lamp in the g button goes
out. i
Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately

30 minutes at
outside temperatures above
approximately 41 ‡ (5 †) Activating/deactivating the residual
heat function
The residual

heat function is only available on
vehicles for Canada. It
is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine

has been switched off. The heating
time depends on the temperature that has
been set.
X Turn the SmartKey to position 0 in the
ignition lock or remove it.
X To activate: press the Ì button.
The indicator

lamp in the Ì button lights
up.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation 130
Operating the climate control systems
Climate control

will be activated. The blower runs at
medium speed.
X To switch off: press the Ì button.
The indicator
lamp in the Ì button goes
out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
vents. If

necessary, direct the airflow away to
a different 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:
R keep the air inlet grille on the hood and in
the engine compartment on the front-
passenger side free of blockages, such as
ice, snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior.
i You can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
i For optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position. Setting the center air vents
X
To open a center air vent: turn the
adjuster in one of center air vents :
counterclockwise.
X To close a center air vent: turn the
adjuster in one of center air vents :
clockwise until it engages. Setting the side air vents
:
Side window defroster vent
; Side air vent
X To open a side air vent: turn the adjuster
in side air vent ; counterclockwise.
X To close a side air vent: turn
the adjuster
in side air vent ; clockwise until it
engages. Setting the glove box air vent
! Close the air vent when heating the
vehicle. Setting the air vents
131
Climate control Z

Removing the Start/Stop button
You can remove the Start/Stop button from
the ignition lock and start the vehicle as
normal using the SmartKey.
X
Remove Start/Stop button : from ignition
lock ;.
i You do

not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. Starting the engine
Important safety notes G
WARNING
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not

run the engine in confined areas (such
as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are
entering the vehicle while driving, have the
cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one
window fully open at all times.
! Do not depress the accelerator pedal
when starting the engine.
i The catalytic converter is preheated for
up to 30seconds after a cold start. During
this time, the engine sound may be
different. Starting procedure with the SmartKey X
Depress the brake pedal and keep it
depressed.
X Shift the transmission to position P.
The transmission position display in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N.
X Turn the SmartKey to position 3 in the
ignition lock

(Y page 135) and release it as
soon as the engine is running.
Using KEYLESS-GO to start the engine G
WARNING
As long as the SmartKey is in your vehicle, the
vehicle can

be started. Therefore, never leave
children unattended in the vehicle, as they
could otherwise accidentally start the engine.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. A
child's unsupervised access to a vehicle could
result in an accident and/or serious personal
injury.
i The Start/Stop button can be used to
start the vehicle without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted into the
ignition lock and the SmartKey must be in
the vehicle.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position P.
The transmission position display in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N.
X Press the Start/Stop button once
(Y page 135).
The engine starts. Driving
137
Driving and parking Z