Page 112 of 245

110Instruments and controls
When operating the retractable
hardtop ■ Indicator buzzer upon completed opening or closing of the
convertible hardtop.
■ Indicator buzzer upon completed raising or lowering of the electricload compartment loading aid.
■ Gong tone if the tailgate is not closed during roof operation.
■ Gong tone if the tailgate is not fully open during operation of the load
compartment loading aid.
■ Gong tone during roof operation if vehicle speed exceeds 30 km/h.
■ Gong tone when vehicle speed exceeds 30 km/h if the roof is not
fully open or closed.
■ Three gong tones during roof or loading aid operation if the load
compartment blind is not attached.
■ Three gong tones during roof operation if outside temperature is
below -20 °C, vehicle battery
voltage is too low or the system is
overloaded.■ Continuous warning buzzer during roof operation if the anti-roll bars
have been triggered.
■ Continuous warning buzzer starting
one minute before the end of the
9-minute standby time with the roof
in an intermediate position or the loading aid in a raised position.
■ Persistent warning buzzer when closing the tailgate, if the lowering
process of the electric load aid is
not complete or has been
interrupted.
Battery voltage
Low battery voltage in radio remote
control or electronic key. On vehicles
without check control, the message
InSP3 appears in the instrument
panel display. Replace the battery
3 20, 3 22.
Brake light switch
Brake light does not come on during
braking. Have the cause of the fault
remedied immediately by a
workshop.Engine cooling level
Low fluid level in engine cooling
system. Check coolant immediately
3 162.
Drain diesel fuel filter
If there is water in the diesel fuel filter, the message InSP4 appears in the
instrument panel. Consult a
workshop.
Page 114 of 245
112Instruments and controlsTrip computerTrip computer in Board-
Info-Display
Access the data by pressing the BC
button on the Infotainment system or
the left adjuster wheel on the steering wheel.
Some information appears in the
display in an abbreviated form.
Once an audio function has been
selected, the lower row of the trip computer function is displayed
furthermore.Instantaneous consumption
Displays the instantaneous
consumption. At low speeds,
consumption per hour is displayed.
Average consumption
Displays average consumption. The
measurement can be reset at any
time.
Absolute consumption
Displays fuel consumed. The
measurement can be reset at any
time.
Average speed
Displays average speed. The
measurement can be reset at any
time.
Stoppages in the journey with the
ignition off are not included in the
calculations.
Distance
Displays distance travelled. The
measurement can be reset at any
time.
Range
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Instruments and controls113
Range is calculated from current fuel
tank content and current
consumption. The display shows
average values.
After refuelling, the range updates
automatically after a brief delay.
When the fuel level in the tank is low,
the message Range appears in the
display.
When the fuel tank is nearly empty,
the message Refuel! appears in the
display.
Stop watchSelect the function. Press the OK
button or the left adjuster wheel on the
steering wheel to start or stop the stop watch.
Restart trip computer
The measurement or calculation of
the following trip computer
information can be restarted:
■ Average consumption,
■ Absolute consumption,
■ Average speed,
■ Distance,
■ Stop watch.
Select the desired trip computer
information 3 102. To restart, press
the OK button or the left adjuster
wheel on the steering wheel for
approx. 2 seconds.Trip computer in Graphic-
Info-Display or Colour-
Info-Display
The main page of the trip computer
provides information on range,
current consumption and average
consumption of BC 1.
To display other trip computer data,
press the BC button on the
infotainment system, select the trip
computer menu from the display or
press the left adjuster wheel on the
steering wheel.
Select BC 1 or BC 2 from the trip
computer menu.
Page 116 of 245
114Instruments and controls
Range
Range is calculated from current fuel
tank content and current
consumption. The display shows
average values.
After refuelling, the range is updated
automatically after a brief delay.
When the fuel level in the tank is low,
the message Range appears in the
display.
When the fuel tank is nearly empty,
the message Please refuel! appears
in the display.
The navigation system will support
you in finding the nearest filling
station. See Infotainment manual for
further information.
Instantaneous consumptionDisplay of the instantaneous
consumption. At low speeds,
consumption per hour is displayed.Distance
Displays distance travelled. The
measurement can be reset at any
time.
Average speed Displays average speed. The
measurement can be reset at any
time.
Stoppages in the journey with the
ignition off are not included in the
calculations.
Page 117 of 245
Instruments and controls115
Absolute consumptionDisplays fuel consumed. The
measurement can be reset at any
time.
Average consumption Displays average consumption. The
measurement can be reset at any
time.
Restart trip computer
The measurement or calculation of
the following trip computer
information can be restarted:
■ Distance,
■ Average speed,
■ Absolute consumption,
■ Average consumption.
Select BC 1 or BC 2 from the Board
Computer menu.
The information of the two trip
computers can be reset separately,
making it possible to evaluate data
from different time periods.
Select the required trip computer
information and confirm.To reset all information of a trip
computer, select menu item All
values .
Page 127 of 245

Climate control125
■Open side air vents as required and
direct them towards door windows.
■ For simultaneous warming of the foot well, set air distribution control
to J.
Air conditioning system
In addition to the heating and
ventilation system, the air
conditioning system has:
n=Cooling4=Air recirculationCooling n
Operated with the n button and is
functional only when the engine and
fan are running.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
freezing point. Therefore
condensation may form and drip from under the vehicle.
If no cooling or drying is required,
switch the cooling system off to save
fuel.
Air recirculation system 4
Operated with the 4 button.9Warning
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. The quality
of the passenger compartment air
deteriorates, which may cause the vehicle occupants to feel drowsy.
Air distribution to l: Air recirculation
is deactivated.
Maximum cooling Briefly open the windows so that hot
air can disperse quickly.
■ Cooling n on.
■ Air circulation system 4 on,
■ Set air distribution control to M.
■ Set temperature control to coldest level.
■ Set fan speed to highest level.
■ Open all vents.
Demisting and defrosting the
windows ■ Cooling n on.
■ Set air distribution control to l.
■ Set temperature control to warmest
level.
■ Set fan speed to highest level.
■ Switch on heated rear window Ü.
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Climate control127
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.
If no cooling or drying is required,
switch the cooling system off to save
fuel.
Air recirculation system 4
The air recirculation mode is operated
with the 4 button.9Warning
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. The quality
of the passenger compartment air
deteriorates, which may cause the vehicle occupants to feel drowsy.
Maximum cooling
Briefly open the windows so that the heated air can disappear quickly.
■ Cooling n on.
■ Set air distribution control to M.
■ Set temperature control to required
temperature value.
■ Set fan control to A.
■ Open all vents.
The automatic climate control
automatically cools to the specified
value with the maximum cooling
power.
With the temperature control turned
to its minimum setting, the system
continually runs at maximum cooling. The system is automatically set to air
recirculation when the air conditioning
is on.
Demisting and defrosting the
windows ■ Cooling n on.
■ Press button V: in position A, fan
automatically switches to maximum speed, the air distribution is
directed towards the windscreen.■ Set temperature control to warmest
level.
■ Switch on heated rear window Ü.
Electronic climate control
system
Controls for: ■ Temperature
■ Air distribution and menu selection
■ Fan speed
AUTO=Automatic mode4=air recirculationV=demisting and defrosting
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Climate control129
Individual menu items are marked by
turning the centre control and
selected by pressing it.
To exit a menu, turn the centre control until Return or Main appear and
select.
Air distribution Turn the centre control. The Air
distribut. menu is activated, showing
the possible air distribution settings:Top=to windscreen and front
door windows.Centre=to vehicle occupants.Bottom=to foot well.
The Air distribut. menu can also be
called up via the Climate menu.
Return to automatic air distribution:
Deactivate corresponding setting or
press button AUTO.
Cooling
In the Climate menu, select menu
item AC and activate or deactivate
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.
If no cooling or drying is required,
switch the cooling system off to save
fuel, Eco appears in the display.
Fan regulation in automatic
mode
Fan regulation in automatic mode can
be adapted.
Select menu item Automatic blower
from the Climate menu and select the
desired fan regulation.
Manual air recirculation mode The manual air recirculation mode is
operated with the 4 button.9Warning
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. The quality
of the passenger compartment air
deteriorates, which may cause the vehicle occupants to feel drowsy.