2014 MERCEDES-BENZ SLK-CLASS ROADSTER fog light

distance to the other vehicle. Once the
system no longer detects any other vehicles,
it reactivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Switching Adaptive Highbeam Assist
on/off X
To activate: activate the Adaptive
Highbeam Assist function using the on-
board computer (Y page 203).
X Turn the light switch to Ã.
X Press the combination switch beyond the
pressure point in the direction of arrow :
(Y page 110).
The _ indicator lamp in the
multifunction display lights up if it is dark
and the light sensor activates the low-beam
headlamps.
If you are driving at speeds above
approximately 28 mph (45 km/h):
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above
approximately 35 mph (55 km/h) and no
other road users have been detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below
approximately 30 mph (45 km/h) or other
road users have been detected or the roads
are adequately lit:
The high-beam headlamps are switched off
automatically. The Kindicator lamp in
the instrument cluster goes out. The _
indicator lamp in the multifunction display
remains lit.
X To deactivate: move the combination
switch back to its normal position.
The _ indicator lamp in the instrument
cluster goes out. Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
X Switch on the lights and drive off.
The level of fogging diminishes, depending
on the length of the journey and the
weather conditions (humidity and
temperature).
If the level of fogging does not diminish:
X Have the headlamps checked at a qualified
specialist workshop. Interior lighting
Overview of interior lighting
Overhead control panel
:
p Switches the left-hand reading lamp
on/off
; | Switches the automatic interior
lighting control on/off
= p Switches the right-hand reading
lamp on/off
? c Switches the interior lighting on/off Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
unless the SmartKey is in position
2in the
ignition lock. Interior lighting
113Lights and windshield wipers Z

=
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

Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
M
MSolutions The indicator lamp in
the
¿/Á button
flashes three times or
remains off. The
"Cooling with air
dehumidification"
function cannot be
switched on. Cooling with air dehumidification has been deactivated due to a
malfunction.
X
Visit a qualified specialist workshop. Setting climate control to automatic
General notes 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.
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-
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.
Activating/switching X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated. X
To switch to manual mode: press the
_ button.
or
X Press the IorK button.
The indicator lamp in the Ãbutton goes
out. Setting the temperature
Air-conditioning system X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To increase/reduce: turn control:
clockwise or counter-clockwise
(Y page 123).
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.
X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To increase/reduce: turn control:or
B clockwise or counter-clockwise
(Y page 125).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †). Operating the climate control systems
129Climate 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

Problems with the rear window defroster
Problem Possible causes/consequences and
M
MSolutions The indicator lamp on
the
¤ button
flashes. The rear
window defroster has
deactivated
prematurely or cannot
be activated. The on-board voltage is too low because too many electrical
consumers are switched on.
X
Switch 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. The roof is open.
X
Close the roof.
When the roof is closed, the rear window defroster can be
activated again. Activating/deactivating air-
recirculation mode
General notes If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To activate: press thegbutton.
The indicator lamp in the gbutton 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
30 minutes.
X To deactivate: press thegbutton.
The indicator lamp in the gbutton 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 †) if the "Cooling
with air dehumidification" function is
activated Activating/deactivating the residual
heat function
General notes 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.Operating the climate control systems
133Climate control

X
Press the :or9 button to select the
Amb. Light +/-
Amb. Light +/- function.
You will see the selected setting.
X Press ato confirm.
X Press the :or9 button to adjust the
brightness to any level from Off
Off toLevel
Level
5
5 (bright).
X Press the aor% button to save the
setting.
Setting the ambient lighting color
X Press the =or; button on the
steering wheel to select the Settings
Settings
menu.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Ambient Light Color
Ambient Light Color function.
X Press ato confirm.
X Press the :or9 button to set the
color to SOLAR SOLAR,SOLAR orange
SOLAR orange orSOLAR
SOLAR
red
red.
X Press the aor% button to save the
setting.
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
X Press the =or; button on the
steering wheel to select the Sett
Sett menu.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Surround Lighting
Surround Lighting function.
When the Surround Lighting Surround Lighting function is
activated, the light cone and the area
around the vehicle are displayed in orange
in the multifunction display.
X Press the abutton to save the setting. Deactivating delayed switch-off of the
exterior lighting temporarily:
X
Before leaving the vehicle, turn the
SmartKey to position 0in the ignition lock.
X Turn the SmartKey to position 2in the
ignition lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
If you have activated the Surround
Surround
Lighting Lighting function and the light switch is set
to Ã, the following functions are activated
when it is dark:
R surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
automatic headlamp mode is activated
(Y page 109).
R exterior lighting delayed switch-off: the
exterior lighting remains lit for
60 seconds after the engine is switched off.
If you close all the doors and the trunk lid,
the exterior lighting goes off after
15 seconds.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the
following light up:
R Parking lamps
R Front fog lamps
R Low-beam headlamps
R Daytime running lamps
R Side marker lamps
R Surround lighting in the exterior mirrors
Activating/deactivating the interior
lighting delayed switch-off
If you activate the Interior Lighting Interior Lighting
Delay
Delay function, the interior lighting remains
on for 20 seconds after you remove the
SmartKey from the ignition lock. 204
Menus and submenusOn-board computer and displays