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Problems with the windshield wipers
Problem Possible causes/consequences and
M
MSolutions The windshield wipers
are jammed. Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated.
X
Switch off the engine using the Start/Stop button and open the
driver's door.
X Remove the cause of the obstruction.
X Switch the windshield wipers back on. The windshield wipers
fail completely. The windshield wiper drive is malfunctioning.
X
Select another wiper speed on the combination switch.
X Have the windshield wipers checked at a qualified specialist
workshop. The windshield washer
fluid from the spray
nozzles no longer hits
the center of the
windshield. The spray nozzles are misaligned.
X
Have the spray nozzles adjusted at a qualified specialist
workshop. The wiper arms are on
the windshield. The wiper arms have been moved by an external force.
X
Select key position 2(ignition) with the Start/Stop button.
The wiper arms move back down automatically. Windshield wipers
103Lights and windshield wipers Z
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Page 107 of 292
Useful information
............................106
Overview of climate control sys-
tems ................................................... 106
Operating the climate control sys-
tems ................................................... 108
Setting the air vents .........................113 105Climate control
Page 108 of 292

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 Please read the information on qualified
specialist workshops (Y page 22).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
The automatic climate control regulates the
temperature and the humidity in the vehicle
interior and filters undesirable substances
out of the air.
Coupe: dual-zone automatic climate control
is only operational when the engine is
running. Optimum operation is only achieved
with the side windows closed.
Roadster: dual-zone automatic climate
control is only operational when the engine is
running. Optimum operation is only achieved
with the side windows and roof closed.
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. 106
Overview of climate control systemsClimate control
Page 109 of 292
Control panel for dual-zone automatic climate control
Canada only
:
To set the temperature, left (Y page 110)
; To set climate control to automatic (Y page 110)
= To switch climate control on/off (Y page 108)
? To switch the MONO function on/off
A To switch cooling with air dehumidification on/off (Y page 108)
B To defrost the windshield (Y page 111)
C To activate/deactivate air-recirculation mode (Y page 113)
D To set the temperature, right (Y page 110)
E To switch the rear window defroster on/off (Y page 112)
F To increase the airflow (Y page 111)
G To reduce the airflow (Y page 111)
H Display
I To set the air distribution (Y page 110)USA only
:
To set the temperature, left
; To set climate control to automatic (Y page 110)
= To switch climate control on/off (Y page 108)
? To switch maximum cooling on/off (Y page 111)
A To switch cooling with air dehumidification on/off (Y page 108) Overview of climate control systems
107Climate control
Page 110 of 292

B
To defrost the windshield (Y page 111)
C To activate/deactivate air-recirculation mode (Y page 113)
D To set the temperature, right (Y page 110)
E To switch the rear window defroster on/off (Y page 112)
F To increase the airflow (Y page 111)
G To reduce the airflow (Y page 111)
H Display
I To set the air distribution (Y page 110)Notes on using dual-zone 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. The indicator lamps in the
à and¿ buttons 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 MONO function if you want to
adopt the temperature and air distribution
settings from the driver's side for all
climate control zones. The indicator lamp
in the ºbutton lights up. 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 110).
Activating/deactivating X
Select key position 2with the Start/Stop
button (Y page 119).
X To activate: 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 deactivate: 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 cooled108
Operating the climate control systemsClimate control
Page 111 of 292
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.
Activating/deactivating 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. Operating the climate control systems
109Climate control
Page 112 of 292

Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
M
MSolutions The indicator lamp in
the
¿ 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
controlled automatically. 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
Select key position 2with the Start/Stop
button (Y page 119).
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
à button.
The indicator lamp in the Ãbutton goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Different temperatures can be set for the
driver's and front-passenger sides.
X Select key position 2with the Start/Stop
button (Y page 119).
X To increase/reduce: turn controls:and
D clockwise or counter-clockwise
(Y page 107).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †). 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 110
Operating the climate control systemsClimate control