Replacing the battery1.Remove integrated key from remote con‐
trol.2.Slide the key into the opening and raise the
cover.
The battery compartment is accessible.3.Slide the key in the cover of the battery
compartment and raise the cover.4.Insert a battery of the same type with the
positive side facing up.5.Insert lid and cover.6.Push key into the remote control until it en‐
gages.
Have old batteries disposed of by a
dealer’s service center or another quali‐
fied service center or repair shop or
take them to a collection point.
New remote controls
New remote controls are available from a
dealer’s service center or another qualified
service center or repair shop.
Loss of the remote controls
The lost remote control can be blocked by a
dealer’s service center or another qualified
service center or repair shop.
Emergency detection of remote control
The concept
The engine can be started via emergency de‐
tection of the remote control, if the remote
control is not recognized by the vehicle.
General information
A Check Control message is displayed.
Remote control detection by the vehicle can
among others be malfunctioning under the fol‐
lowing circumstances:▷The battery of the remote control is dis‐
charged. Replace the battery, refer to
page 35.▷Interference of the radio connection from
transmission towers or other equipment
with high transmit power.▷Shielding of the remote control due to
metal objects.▷Interference of the radio connection from
mobile phones or other electronic devices
in direct proximity.▷Interference of radio transmission by a
charging process of mobile devices, e.g.,
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▷Keep the area of movement of the conver‐
tible top clear because the convertible top
swivels out upward. Maximum area of
movement: 98.5 inches/2.5 meters.▷Do not leave the convertible top open for
more than a day while it is wet.▷Do not open the convertible top, if it is wet,
covered in snow, iced up, or dirty.▷Do not place objects on the convertible top.▷The rollover protection system may not be
triggered.▷Do not operate convertible top on uneven
sections of road.▷Always open or close the convertible top
completely. The convertible top is only
locked in the final positions.▷Make sure that no objects are on the cargo
cover when opening the convertible top. ◀
WARNING
When opening and closing the converti‐
ble top, body parts can be jammed, for exam‐
ple by the mechanism. There is a risk of injuries.
Make sure that the area of movement of the
convertible top is clear during operation. ◀
WARNING
When operating the convertible top while
driving, the view to the rear may be limited. At
speeds above 20 mph/30 km/h the convertible
top remains in its current position. There is a
danger of accidents and property damage.
When operating the convertible top while driv‐
ing, observe traffic attentively and if necessary,
reduce speed. Do not operate while backing up
or with wind. ◀
WARNING
The convertible top is not suitable for the
mounting of roof carrier systems. The roof car‐
rier could come loose. There is a risk of an acci‐
dent. Do not attach any roof carrier systems to
the convertible top. ◀
Functional requirements
The ignition or radio-ready state must be
switched on.
The following requirements must be fulfilled in
order to be able to move the convertible top.▷The cargo area partition is stored and
latched in the bottom position.▷The tailgate is closed.▷The external temperature is above
14 ℉/-10 ℃.▷The voltage of the vehicle electrical system
is sufficient.▷The convertible top drive is not overheat‐
ing.▷The vehicle speed is not too high.▷The windows can be lowered.
If this requirement is not met, a check control
message is displayed.
Opening and closing from the inside In order to protect the battery, move the con‐
vertible top only when the engine is running if
possible.
Before closing the convertible top, remove any
foreign objects from the windshield frame; oth‐
erwise, closing may be prevented.
Press the switch backward, until
the sliding sun roof is open.
Press the switch backward again.
The windows are rolled down,
and the convertible top opens as
longs as the switch is pressed. After the conver‐
tible top is completely open, the switch can be
held or pressed again briefly in order to raise
the windows.
Press and hold switch forward.
The windows are lowered, the
convertible top closes and the windows are raised again as long
as the switch is pressed.
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Functional limitationsEven if driving off was not intended, the deacti‐
vated engine starts up automatically in the fol‐
lowing situations:▷Excessive warming of the car's interior
when the cooling function is switched on.▷The steering wheel is turned.▷Steptronic transmission: change from selec‐
tor lever position D to R, N or M/S.▷Steptronic transmission: change from selec‐
tor lever position P to R, N, D or M/S.▷The vehicle begins rolling.▷Fogging of the windows when the auto‐
matic climate control is switched on.▷The vehicle battery charge is very low.▷Excessive cooling of the car's interior when
the heating is switched on.▷Manual transmission: low brake vacuum
pressure; this can occur, for example, if the
brake pedal is depressed a number of times
in succession.
Switching the system on/off
Using the button
Press button.
▷LED comes on: Auto Start/Stop function is
deactivated.
The engine is started during an automatic
engine stop.The engine can only be stopped or started
via the Start/Stop button.▷LED goes out: Auto Start/Stop function is
activated.
Switching off the vehicle during an automatic engine stop
During an automatic engine stop, the vehicle
can be switched off permanently, e.g., when
leaving it.
Steptronic transmission:
1.Engage selector lever position P.2.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function is
deactivated.3.Set the parking brake.
Manual transmission:
1.Press the Start/Stop button. The ignition is
switched off. The Auto Start/Stop function is
deactivated.2.Shift into first gear or reverse.3.Set the parking brake.
Engine start as usual via Start/Stop button.
Automatic deactivation
In certain situations, the Auto Start/Stop func‐
tion is deactivated automatically for safety rea‐
sons, as it is detected that no driver is present.
Malfunction The Auto Start/Stop function no longer switches
off the engine automatically. A Check Control
message is displayed. It is possible to continue
driving. Have the system checked by a dealer’s
service center or another qualified service cen‐
ter or repair shop.
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Electronic displays1Driver assistance systems
Messages, for example, Check Control
Time 85
External temperature 85
Selection lists 89
Total miles/trip odometer 85Onboard computer 892Selector lever position 75
Gear shift indicator 873Status, Driving Dynamics Control 124
StatusCheck Control
The concept
The Check Control system monitors functions in
the vehicle and notifies you of malfunctions in the monitored systems.
A Check Control message is displayed as a com‐
bination of indicator or warning lights and text
messages in the instrument cluster and in the
Head-up Display.
In addition, an acoustic signal may be output
and a text message may appear on the Control Display.Indicator/warning lights
General information
The indicator and warning lights can light up in
a variety of combinations and colors.
Several of the lights are checked for proper
functioning and light up temporarily when the
engine is started or the ignition is switched on.
Red lights Safety belt reminder Flashing or illuminated: safety belt on
the driver or passenger side is not buck‐
led. The safety belt reminder can alsoSeite 81DisplaysCONTROLS81
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DSC Dynamic Stability Control is deactivated
or DTC Dynamic Traction Control is activated
Dynamic Stability Control DSC is
switched off or Dynamic Traction Con‐
trol DTC is switched on.
For additional information, refer to Dynamic
Stability Control DSC, refer to page 122, and
Dynamic Traction Control DTC, refer to
page 123.
Flat Tire Monitor FTM The Flat Tire Monitor signals a loss of
tire inflation pressure in a tire.
Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneuvers.
For additional information, refer to Flat Tire
Monitor, refer to page 113.
Tire Pressure Monitor TPM Illuminated: the Tire Pressure Monitor
signals a loss of tire inflation pressure in
a tire.
Reduce your speed and stop cautiously. Avoid
sudden braking and steering maneuvers.
Flashing and then continuously illuminated: no
flat tire or loss of tire inflation pressure can be
detected.▷Interference through systems or devices
with the same radio frequency: After leav‐
ing the area of the interference, the system
automatically becomes active again.▷TPM was unable to complete the reset. Re‐
set the system again.▷A wheel without TPM electronics is
mounted: Have it checked by a dealer’s
service center or another qualified service
center or repair shop as needed.▷Malfunction: have the system checked by a
dealer’s service center or another qualified
service center or repair shop.For additional information, refer to Tire Pres‐
sure Monitor, refer to page 109.
Steering system Steering system in some cases not
working.
Have the steering system checked by a
dealer’s service center or another qualified
service center or repair shop.
Engine functions Have the vehicle checked by a dealer’s
service center or another qualified serv‐
ice center or repair shop.
For additional information, refer to On-board
Diagnostics socket, refer to page 207.
Rear fog lamp Rear fog lights are activated.
For additional information, refer to Rear
fog lights, refer to page 103.
Green lights Turn signal Turn signal switched on.
Unusually rapid flashing of the indicator
lamp indicates that a turn signal bulb
has failed.
For additional information, refer to Turn signal,
refer to page 71.
Parking lights, headlight control Parking lights or headlights are acti‐
vated.
For additional information, refer to
Parking lights/low beams, headlight control, re‐
fer to page 100.Seite 83DisplaysCONTROLS83
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Displaying stored Check Control
messages
On the Control Display:1. "Vehicle info"2."Vehicle status"3. "Check Control"4.Select the text message.
Messages after trip completion
Special messages displayed while driving are
displayed again after the ignition is switched
off.
Fuel gauge Vehicle tilt position may cause
the display to vary.
The arrow beside the fuel pump
symbol shows which side of the
vehicle the fuel filler flap is on.
Information on refueling, refer to page 182.
Tachometer
Always avoid engine speeds in the red warning
field. In this range, the fuel supply is interrupted
to protect the engine.
Odometer and trip odom‐
eter
The concept
Odometer and trip odometer are displayed in
the instrument cluster.
Resetting the trip odometer
Press the knob.▷The odometer is displayed
when the ignition is switched
off.▷When the ignition is switched
on, the trip odometer is re‐
set.
External temperature
If the indicator drops to
+37 ℉/+3 ℃, a signal sounds.
A Check Control message is dis‐
played.
There is an increased risk of ice
on roads.
WARNING
Even at temperatures above +37 ℉/+3 ℃
there can be a danger of icy roads, e.g., on
bridges or shady sections of road. There is risk
of an accident. Adjust your driving style to the
weather conditions at low temperatures. ◀
Time The time is displayed in the in‐
strument cluster.
Setting the time on the Control
Display, refer to page 93.
Date The date is displayed in the in‐
strument cluster.
Set the date on the Control Dis‐
play, refer to page 93.
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Range
Display With a low remaining range:▷A Check Control message is
displayed briefly.▷The remaining range is
shown on the onboard com‐
puter.▷With a dynamic driving style, for example
taking curves aggressively, the engine func‐
tion is not always ensured.
The Check Control message appears continu‐
ously below a range of approx. 30 miles/50 km.
ATTENTION
With a range of less than 30 miles/50 km
it is possible that the engine will no longer have
sufficient fuel. Engine functions are not ensured
anymore. There is a risk of damage to property.
Refuel promptly. ◀
Displaying the cruising range
1. "Settings"2."Instrument cluster"3."Range"
Current fuel consump‐
tion
The concept
Displays the current fuel consumption. Check
whether you are currently driving in an efficient
and environmentally-friendly manner.
Displaying the current fuel
consumption
1. "Settings"2."Instrument cluster"3."Current consumption"Service requirements
The concept
After the ignition is turned on the instrument
cluster briefly displays available driving distance
or time to the next scheduled maintenance.
A service advisor can read out the current serv‐
ice requirements from your remote control.
Display
Detailed information on service
requirements
More information on the scope of service re‐
quired can be displayed on the Control Display.1. "Vehicle info"2."Vehicle status"3. "Service required"
Required maintenance procedures and le‐
gally mandated inspections are displayed.4.Select an entry to call up detailed informa‐
tion.
Symbols
SymbolsDescriptionNo service is currently required.The deadline for scheduled
maintenance or a legally man‐
dated inspection is approach‐
ing.The service deadline has al‐
ready passed.
Entering appointment dates
Enter the dates for the required inspections.
Make sure that the vehicle's date and time are
set correctly.
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Time of arrival.
When destination guidance is activated in
the navigation system.▷Speed limit detection.▷Speed.
The unit of some information can be changed.
Setting units, refer to page 93.
Selecting information
You can select what information from the on‐
board computer is to be displayed on the CID
(central information display) of the instrument
cluster.
On the Control Display:
1. "Settings"2."Instrument cluster"3.Select the desired information.
Settings are stored for the profile currently
used.
Information in detail
Range Displays the estimated cruising range available
with the remaining fuel.
It is calculated based on your driving style over
the last 20 miles/30 km.
GREEN info Description of GREEN info, refer to page 176.
Average fuel consumption This is calculated for the period while the en‐
gine is running.
The average fuel consumption is calculated for
the distance traveled since the last reset by the
onboard computer.
Average speed
Periods in which the vehicle is parked with the
engine manually stopped are not included in
the calculation of the average speed.
Resetting average values
Press and hold button on turn signal lever.
Engine temperature display
Displays the current engine temperature, based
on a combination of coolant and motor oil tem‐
perature. As soon as the optimum operating
temperature has been attained, the indicator is
in the center position.
If the engine oil or coolant, thus the engine, be‐
come too hot, a Check Control message is dis‐
played.
Check the coolant level, refer to page 204.
Always Open Timer
The Always Open Timer displays the current
driving time and total driving time with the
convertible top open in minutes and hours.
Always Open Timer on the Control Display, re‐
fer to page 97.
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