Page 126 of 247
124Climate control
Demisting and defrosting
■Press button V: fan automatically
switches to higher speed, the air distribution is directed towards the
windscreen.
■ Set temperature control to warmest
level.
■ Switch on heated rear window Ü.
■ Open side air vents as required and
direct them towards the door
windows.
Air conditioning system
In addition to the heating and
ventilation system, the air
conditioning system has controls for:
n=cooling4=air recirculation
Heated seats ß 3 53, Heated
steering wheel * 3 77.
Cooling n
Press button
n to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Press button n again to switch off
cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore
condensation may form and drip from under the vehicle.
Page 128 of 247

126Climate control
Demisting and defrosting the
windows V
■
Press button V: fan automatically
switches to higher speed, the air distribution is directed towards the
windscreen.
■ Switch on cooling n.
■ Set temperature control to warmest
level.
■ Switch on heated rear window Ü.
■ Open side air vents as required and
direct them towards the door
windows.
Note
If the V button is pressed while the
engine is running, an Autostop will
be inhibited until the V button is
pressed again.
If the V button is pressed while the
engine is in an Autostop, the engine will restart automatically.
Stop-start system 3 136.
Electronic climate control
system
The dual zone climate control allows
different climatisation temperatures
for driver and front passenger side.
In Automatic mode temperature, fan
speed and air distribution are
regulated automatically.
Controls for:
■ Temperature on driver side■ Air distribution
■ Fan speed
■ Temperature on front passenger side
n=coolingAUTO=automatic mode4=manual air recirculationV=demisting and defrosting
Heated rear window Ü 3 33, Heated
seats ß 3 53, Ventilated seats 3 53,
Heated steering wheel * 3 77.
Page 129 of 247

Climate control127
Climate control settings are shown onthe Graphic-Info-Display, or
depending on the version, on Colour- Info-Display. Setting modifications
are briefly popped-up in both
displays, superimposed over the
currently displayed menu.
The electronic climate control system
is only fully operational when the
engine is running.
Automatic mode AUTO
Basic setting for maximum comfort:
■ Press AUTO button, the air
distribution and fan speed are
regulated automatically.
■ Open all air vents to allow optimised air distribution in
automatic mode.
■ Press n to switch on optimal
cooling and demisting. Activation is indicated by the LED in the button.
■ Set the preselected temperatures for driver and front passenger using
the left and right rotary knob.
Recommended temperature is
22 °C.
When the soft top is opened, the
Climate control adapts the automatic
mode to the changed climatic
environment.
The fan speed regulation in automatic mode can be changed in the menu
Settings .
Vehicle personalisation 3 102.
Temperature preselection
Set temperatures to the desired
value.
Page 130 of 247

128Climate control
If the minimum temperature Lo is set,
the climate control system runs at
maximum cooling, if cooling n is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at
maximum heating.
Note
If n is switched on, reducing the set
cabin temperature can cause the
engine to restart from an Autostop or inhibit an Autostop.
Demisting and defrosting the
windows V
■
Press button V. Activation is
indicated by the LED in the button.
■ Press button n for cooling.
Activation is indicated by the LED in
the button.
■ Temperature and air distribution are set automatically and the fan
runs at high speed.
■ Switch on heated rear window Ü.
■ To return to previous mode: press button V, to return to automatic
mode: press button AUTO.
Setting of automatic rear window
heating can be changed in the menu
Settings in the Info-Display. Vehicle
personalisation 3 102.
Note
If the V button is pressed while the
engine is running, an Autostop will
be inhibited until the V button is
pressed again.
If the V button is pressed while the
engine is in an Autostop, the engine will restart automatically.
Stop-start system 3 136.
Manual settings Climate control system settings can
be changed by activating the buttons
and rotary knobs as follows.
Changing a setting will deactivate the
automatic mode.
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Climate control129
Fan speed Z
Press lower button to decrease or
upper button to increase fan speed as shown in the illustration. The fan
speed is indicated by the number of
segments in the display.
Pressing the lower button longer: fan and cooling are switched off.
Pressing the upper button longer: the
fan runs at maximum speed.
To return to automatic mode: Press
AUTO button.
Air distribution s, M , K
Press appropriate button for desired
adjustment. Activation is indicated by the LED in the button.
s=to windscreen and front door
windows.M=to head area via adjustable air
vents.K=to foot well.
All combinations are possible.
Return to automatic air distribution:
press button AUTO.
Cooling n
Press button
n to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Press button n again to switch off
cooling.
The air conditioning system cools and
dehumidifies (dries) when outside temperature is above a specific level. Therefore condensation may form
and drip from under the vehicle.
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130Climate control
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons. When the cooling
system is switched off, no engine
restart will be requested by the
climate control system during an
Autostop. Exception: defrost system
is activated and outside temperature
above 0° C requests a restart.
The display will indicate ACON when
cooling is activated or ACOFF when
the cooling is deactivated.
Activation or deactivation of cooling
operation after engine start can be
changed in the menu Settings in the
Info-Display. Vehicle personalisation
3 102.Air recirculation mode 4
Press button
4 to activate air
recirculation mode. Activation is
indicated by the LED in the button.
Press button 4 again to deactivate
recirculation mode.
9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen might mist up from outside, when cold air is
directed to it. If windscreen mists up
from outside, activate windscreen
wiper and deactivate s.
Basic settings Some settings can be changed in the
menu Settings in the Info-Display.
Vehicle personalisation 3 102.
Auxiliary heater
Air heater Quickheat is an electric auxiliary air
heater which automatically warms up
the passenger compartment more
quickly.
Page 133 of 247
Climate control131Air vents
Adjustable air vents
At least one air vent must be open
while the cooling is on.
To open the vent, turn the adjuster
wheel towards the bigger W symbol.
Adjust the air amount at the vent
outlet by turning the adjuster wheel.
Direct the flow of air by tilting and
swivelling the slats.
To close the vent, turn the adjuster
wheel towards the smaller W symbol.
9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in case of an
accident.
Fixed air vents
Additional air vents are located
beneath the windscreen and door windows and in the foot wells.
Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Pollen filter
The pollen filter cleans dust, soot,
pollen and spores from the air
entering the vehicle through the air
intake.
Page 135 of 247

Driving and operating133Driving and operatingDriving hints............................... 133
Starting and operating ...............134
Engine exhaust .......................... 139
Automatic transmission .............. 141
Manual transmission ..................144
Brakes ........................................ 144
Ride control systems .................147
Driver assistance systems .........151
Fuel ............................................ 172
Trailer hitch ................................ 174Driving hints
Control of the vehicleNever coast with engine not
running (except during Autostop)
Many systems will not function in this
situation (e.g. brake servo unit, power steering). Driving in this manner is a
danger to yourself and others. All
systems function during an Autostop,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 136.
Idle boost
If charging of the battery is required
due to battery condition, the power output of the generator has to be
increased. This will be achieved by an
idle boost which may be audible. A
message appears in the Driver
Information Centre.Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Steering If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.
Control indicator c 3 91.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
than 15 seconds, damage may
occur to the power steering
system and there may be loss of
power steering assist.