
Opening and closing
36 >The indicator lamp goes out after unlocking: 
your vehicle has not been disturbed while 
you were away.
>If the indicator lamp flashes after unlocking 
until the remote control is inserted in the 
ignition, but for no longer than approx. 
5 minutes: your vehicle has been disturbed 
while you were away.
Tilt alarm sensor
The tilt of the vehicle is monitored. The alarm 
system reacts, e.g. to attempts to steal a wheel 
or tow the vehicle.
Interior motion sensor
Coupe
In order for the interior motion sensor to func-
tion properly, the windows and glass roof must 
be completely closed
*.
Convertible
The interior of the car is monitored up to the 
height of the seat cushions. Thus the alarm sys-
tem is activated together with the interior 
motion sensor even if the hardtop is open. The 
alarm can be triggered unintentionally by falling 
objects such as leaves, refer to Avoiding unin-
tentional alarms.
Avoiding unintentional alarms
The tilt alarm sensor and interior motion sensor 
may be switched off at the same time. This pre-
vents unintentional alarms, e.g. in the following 
situations:
>In duplex garages
>During transport on car-carrying trains, 
boats/ships or on a trailer
>When animals are to remain in the vehicle
Switching off tilt alarm sensor and 
interior motion sensor
Press the   button on the remote control 
again as soon as the vehicle is locked.
The indicator lamp lights up briefly and then 
flashes continuously. The tilt alarm sensor and the interior motion sensor are switched off until 
the next time the vehicle is unlocked and subse-
quently locked again.
Convenient access*
Convenient access enables you to enter your 
vehicle without needing to hold the remote con-
trol in your hand. All you need to do is wear the 
remote control close to your body, e.g. in your 
jacket pocket. The vehicle detects the corre-
sponding remote control within the immediate 
vicinity or in the passenger compartment.
Convenient access supports the following 
functions:
>Unlocking/locking the vehicle
>Unlocking the luggage compartment lid 
separately
>Engine starting
>Convenient closure
Functional requirement
>The vehicle or the luggage compartment lid 
can only be locked when the vehicle detects 
that the remote control currently in use is 
outside of the vehicle.
>The vehicle cannot be locked or unlocked 
again until after approx. 2 seconds.
>The engine can only be started when the 
vehicle detects that the remote control cur-
rently in use is inside the vehicle.
Comparison to the standard remote 
control
In general, there is no difference between using 
convenient access or pressing the buttons on 
the remote control to carry out the functions 
mentioned above. You should therefore first 
familiarize yourself with the instructions on 
opening and closing starting on page28.
Special features regarding the use of conve-
nient access are described below.
If you notice a brief delay while opening or 
closing windows, the glass roof or retract-
able hardtop, the system is checking whether a  

Controls
 41Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
opening provided. Move the glass roof in 
the desired direction.
6.Reinstall the control unit and reattach the 
lamp cover.
Convertible: retractable 
hardtop
The retractable hardtop combines reliable 
weather protection with simple and convenient 
operation.
The following tips will enhance your driving 
pleasure in your convertible:
>It is advisable that you close the retractable 
hardtop when you park the vehicle. Not only 
does the closed hardtop protect the vehicle 
interior against unanticipated weather dam-
age, it also offers theft protection. However, 
even when the hardtop is closed, valuables 
should only be stored in the locked cargo 
bay.
>Do not attach roof rack systems to the 
retractable hardtop, and in particular do not 
attach magnetic racks.
>Do not attach rack systems to the luggage 
compartment lid, and in particular do not 
attach magnetic racks.
>When the retractable hardtop is operated, 
the luggage compartment lid swings back 
and up. Before operating the retractable 
hardtop, ensure that there is enough clear-
ance, e.g. when parked in front of a wall.
>If you open the hardtop while it is wet, e.g. 
after driving in the rain, water may drip into 
the cargo bay. If necessary, remove items from the cargo bay beforehand to avoid 
water stains or soiling.
Do not place any objects on the retract-
able hardtop or on the luggage compart-
ment lid, otherwise they could fall during move-
ments of the retractable hardtop and cause 
damage or injury.
Never move the retractable hardtop when the 
rollover protection system is in the activated 
position.
Driving when the hardtop is not fully opened or 
closed may result in damage or injury.
Do not reach into the mechanism while the 
hardtop is opening or closing. Keep children 
away from the swiveling area of the retractable 
hardtop.<
The retractable hardtop cannot be moved 
at temperatures below + 147/–106. A 
message appears on the Control Display.<
The retractable hardtop can only be 
opened and closed when the vehicle is 
stationary. To avoid causing damage, do not 
drive off until the hardtop has stopped mov-
ing.<
Before opening and closing
>Comply with the safety precautions 
described above.
>Ensure that the cargo bay partition is folded 
down and engaged on both sides, refer to 
page117, otherwise it will not be possible 
to open the retractable hardtop.
>Do not place any objects next to or on the 
cargo bay partition and close the storage 
compartment on the left side of the cargo 
bay.
>Do not exceed the maximum loading height 
under the cargo bay partition; refer to the 
label in the cargo bay showing a line indicat-
ing the maximum height.
>Ensure that the luggage compartment lid is 
closed.
>The vehicle should be parked on fairly level 
ground. Excessive angle is indicated by a 
lamp. 

Adjustments
46 accident.
On the front passenger seat as well, do not 
incline the backrest too far to the rear while the 
vehicle is being driven, otherwise there is a dan-
ger in the event of an accident of sliding under 
the safety belt, eliminating the protection nor-
mally provided by the belt.<
Comply with the instructions on head restraint 
height on page47, and on damaged safety 
belts on page51.
Manual adjustment
Observe the adjustment instructions on 
page45 to ensure the best possible per-
sonal protection.<
Longitudinal direction
Pull lever 1 and slide the seat to the desired 
position. 
After releasing the lever, move the seat gently 
forward or back to make sure it engages prop-
erly.
Height
Pull lever 2 and apply your weight to the seat or 
lift it off, as necessary.
Backrest
Pull lever 3 and apply your weight to the back-
rest or lift it off, as necessary.
Tilt*
Pull the lever and apply your weight to the seat 
or lift it off, as necessary.
Thigh support*
Pull the lever and move the thigh support for-
ward or back.
Electrical adjustment
Observe the adjustment instructions on 
page45 to ensure the best possible per-
sonal protection.< 

Controls
 47Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
1Longitudinal direction
2Height
3Angle
4Backrest
5Convertible: head restraints
Coupe: the head restraints are adjusted manu-
ally, refer to Head restraints below.
Lumbar support*
You can also adjust the contour of the backrest 
to obtain additional support in the lumbar 
region.
The upper hips and spinal column receive sup-
plementary support to help you maintain a 
relaxed, upright sitting position.
>Increase or decrease curvature: press the 
switch at the front or rear, respectively.>Shift curvature up or down: press the switch 
at the top or bottom, respectively.
Backrest width*
You can change the width of the backrest to suit 
your individual preferences by adjusting the lat-
eral-support pads.
Press the front or rear end of the switch.
Backrest width decreases or increases accord-
ingly.
Longitudinal adjustment from outside/
behind*
To move the front seats forward or backward 
from outside or from one of the rear seats: with 
the door open, press the front end 1 or rear end 
2 of the switch.
Head restraints
A correctly adjusted head restraint reduces the 
risk of neck injury in the event of an accident.
Adjust the head restraint in such a way 
that its center is at approx. ear level. Oth-
erwise, there is an increased risk of injury in the 
event of an accident. Only remove a head 
restraint if no one will be sitting on the seat in 
question. Reinstall the head restraint before  

Adjustments
48 transporting anyone on that seat. Otherwise, 
the passenger will be without protection from 
the head restraint.<
Front seats
Coupe: height adjustment
>To raise: pull up.
>To lower: press the button, arrow1, and 
slide the head restraint down.
Coupe: removing
1.Pull up as far as it will go.
2.Press the button, arrow1, and pull the head 
restraint all the way out.
Convertible: height adjustment
>To raise: press the button upward.
>To lower: press the button downward.
Coupe: rear seats
Height adjustment
>To raise: pull up.
>To lower: press the button, arrow1, and 
slide the head restraint down.
Removing
1.Pull up as far as it will go.
2.Press the button, arrow 1, tilt the rear seat 
backrest slightly forward and pull the head 
restraint all the way out.
O nly remove the head restraints if no pas-
sengers will be sitting in the rear. Reinstall 
head restraints before transporting passengers 
in the rear.<
Entering the rear seats
Coupe: seat with manual longitudinal 
adjustment
Convenient entry
The convenient entry feature includes a mem-
ory function for the longitudinal adjustment and 
backrest angle. 

Adjustments
54 1.Fold the lever down.
2.Move the steering wheel to the preferred 
height and angle to suit your seated posi-
tion.
3.Swing the lever back up.
Do not use force to swing the lever 
back up, otherwise the mechanism 
will be damaged.<
Programmable buttons on the steering 
wheel
You can program the buttons to suit your per-
sonal preferences:
These settings are stored for the remote con-
trol currently in use.
iDrive, for operating principle refer to page16.
1.Press the   button.
This opens the start menu.
2.Press the controller to open the   menu.3.Select "Settings" and press the controller.
4.Select "Steering wheel buttons" and press 
the controller.
A list showing various functions is dis-
played:
>"Navigation voice instructions" 
Voice messages from the navigation 
system
*
>"Air recirculation on / off" 
Permanent shut-off of outside air, refer 
to AUC Automatic recirculated-air con-
trol on page106
>"Mute on / off" 
To mute the audio sources
>"Monitor on / off" 
To switch the Control Display on/off
>"Telephone list"
*
To show/hide the phone book or last dis-
played list of stored phone numbers
>"Next entertainment source"
To change the audio source
5.Select the desired function and press the 
controller. 

Controls
 71Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
are currently not met. Calling up Check Control 
messages, refer to page84.<
Warning lamps
The indicator2 flashes in red; a 
signal sounds. 
The system indicates that you 
must brake and/or maneuver the 
vehicle yourself. Active cruise con-
trol cannot automatically restore the distance to 
the vehicle ahead. 
This indicator does not release you from your 
responsibility to adapt your desired speed and 
driving style to prevailing driving conditions.
The indicator 2 flashes in yellow. 
The prerequisites for operating 
active cruise control are not met, 
e.g. as a result of ABS or DSC 
interventions. Active cruise control 
is deactivated. You can reactivate the system, if 
desired, by tapping or pulling the lever when 
road and traffic conditions permit. It is not pos-
sible to resume a stored speed.
Radar sensor
The sensor's ability to detect vehicles ahead 
may be restricted as a result of heavy rain, dirt, 
snow or ice. If necessary, clean the radar sensor 
located in the front bumper, see arrow. Be sure 
to use particular care when removing any layers 
of snow or ice from the sensor.
When the radar sensor is not properly posi-
tioned, active cruise control cannot be activated 
at all.
Malfunction
The warning lamp comes on when 
the system has failed. A message 
appears on the Control Display. You 
can find more information starting on page83. 
System limitations
Always remember that the range and abil-
ity of the system does have physical limi-
tations. It will not apply the brakes or decelerate 
your vehicle when there is a slow-moving vehi-
cle, stopped vehicle or stationary object ahead 
of you, as for example, at a traffic light or a 
parked vehicle. Also, the system does not react 
to oncoming traffic, pedestrians or other types 
of potential traffic such as a rider on horseback. 
It is also possible that the system may not detect smaller moving objects such as motor-
cycles or bicycles. Be especially alert when 
encountering any of these situations as the sys-
tem will neither automatically brake, nor provide 
a warning to you. Also, be aware that every 
decrease in the distance setting allows your 
vehicle to come closer to a vehicle in front of 
you and requires a heightened amount of alert-
ness.< 

Controls
 117Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Coupe: socket in the cargo bay*
Open the cap.
Coupe:
Through-loading system*
Opening
1.To release the rear seat backrest, pull the 
corresponding lever in the cargo bay.
2.The unlocked rear seat backrest moves for-
ward slightly. Fold the backrest forward by 
the head restraint.
Closing
Return the rear seat backrest to its upright posi-
tion and engage it.When returning the backrest into its seat-
ing position, make sure that the seat's 
locking mechanism engages properly. Other-
wise, cargo could be thrown around in the event 
of sharp braking or swerving and endanger the 
occupants.<
The lashing eyes in the cargo bay provide you 
with a way to attach cargo bay nets
* or draw 
straps for securing suitcases and luggage, refer 
to page128.
Convertible:
Cargo loading
Enlarging the cargo bay
When the hardtop is closed you can enlarge the 
cargo bay:
To do so, push the cargo bay partition upward.
Before opening the hardtop, push the cargo bay 
partition down until it engages on both sides.
Before moving the hardtop, ensure that 
there are no objects on or next to the 
cargo bay partition, otherwise parts of the hard-
top may be damaged. Do not exceed the maxi-
mum loading height; refer to the sticker in the 
cargo bay showing a line indicating the maxi-
mum height. Do not use force to push down the 
cargo bay partition.<
The retractable hardtop can only be 
opened if the cargo bay partition is in its 
lowermost position and engaged on both 
sides.<