
At a glance
 11Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
7Buttons on steering wheel
8Instrument cluster12
11Ignition lock58
12Horn: the entire surface15Releasing the hood190
16Opening luggage compartment lid34 Mobile phone
*162
>Press: accepting and ending 
call, starting dialing
* for 
selected phone number and 
redialing if no phone number is 
selected
>Press longer: redialing
Volume
Activating/deactivating voice 
command system
* 22
Changing radio station
Selecting music track
Scrolling in phone book and in lists 
with stored phone numbers
Individually programmable
*54 
Individually programmable54 
9
Windshield wipers65
Rain sensor65
10Starting/stopping engine and 
switching ignition on/off 58
13
Steering wheel heater
*54
Steering wheel adjustment53
14
Cruise control66
Active cruise control
*67
17
Head-Up Display
*93
18
Parking lamps96
Low beams96
Automatic headlamp control96
Adaptive Head Light
*97
19
Instrument lighting99
Front fog lamps98 

Controls
 31Reference
At a glance
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Mobility
>Convertible: the windows and the convert-
ible top are opened.
Watch the convertible top during the 
opening process to be sure that no 
one is injured. Releasing the button stops 
the operation.<
Locking doors
Press the   button.
Switching on interior lamps
If the vehicle is locked, press the   button.
You can also use this function to locate your 
vehicle in parking garages etc.
Panic mode*
You can also trigger the alarm system in case of 
danger:
Press the   button for at least three seconds.
To switch off alarm: press any button.
Opening luggage compartment lid
Press the   button for approx. 1 second.
The luggage compartment lid opens, regard-
less of whether it was previously locked or 
unlocked.
A previously locked luggage compart-
ment lid is also locked again after closing.
Coupe: during opening, the luggage compart-
ment lid pivots back and up. Make sure there is 
sufficient clearance.<
Setting confirmation signals
You can set confirmation signals to acknowl-
edge the locking and unlocking of the vehicle.
1.Open the start menu.
2.Press the controller to open the   menu.
3.Select "Vehicle settings" and press the 
controller.
4.Select "Door locks" and press the control-
ler.5.Select "Confirmation" and press the con-
troller.
6.Select the desired signal.
7.Press the controller.
 The signals are switched on.
Malfunctions
Local radio waves can disrupt the function of 
the remote control.
Should the remote control fail to operate owing 
to interference of this kind, unlock and lock the 
vehicle via the door lock using the key.
If it is no longer possible to lock the vehicle 
using the remote control, then the battery is 
discharged. Use this remote control during an 
extended drive; this will recharge the battery, 
refer to page28.
For US owners only
The transmitter and receiver units comply with 
part 15 of the FCC/Federal Communication 
Commission regulations. Operation is gov-
erned by the following:
FCC ID:
LX8766S 
LX8766E 
LX8CAS
LX8CAS2
Compliance statement:
This device complies with part 15 of the FCC 
Rules. Operation is subject to the following two 
conditions:
>This device may not cause harmful interfer-
ence, and 

Opening and closing
32 >this device must accept any interference 
received, including interference that may 
cause undesired operation.
Any unauthorized modifications or 
changes to these devices could void the 
user's authority to operate this equipment.<
Using door lock
When unlocking
1.Turning the key once unlocks the driver's 
door and the fuel filler door.
2.A second turn of the key unlocks the pas-
senger door and luggage compartment lid.
Convenience operation
You can also use the door lock to operate the 
windows and the glass sunroof
* in the Coupe 
or to operate the windows and the top in the 
Convertible.
>To open:
With the door closed, turn the key to the 
Unlock position and hold it there.
>To close:
With the door closed, turn the key to the 
Lock position and hold it there.
Keep a close eye on the closing process 
and also on the opening process of the 
convertible top to be sure that no one is injured. 
Releasing the key stops the operation.<
Manual operation
In the event of an electrical malfunction, you can 
turn the key all the way to the right or left in the 
door lock to lock or unlock the driver's door.
Opening and closing: from 
inside
This button serves to unlock or lock doors and 
the luggage compartment lid, but does not acti-
vate the anti-theft system. The fuel filler door 
remains unlocked.
You can also make the following settings:
>The central locking system automatically 
locks the vehicle after a short time when no 
door has been opened.
>The central locking system automatically 
locks the vehicle as soon as you start to 
drive.
iDrive, for principle details, refer to page16.
1.Press the   button.
This opens the start menu.
2.Press the controller to open the   menu.
3.Select "Vehicle settings" and press the 
controller.
4.Select "Door locks" and press the control-
ler.
5.Select "Central locking" and press the con-
troller.
6.Select "Relock door if not opened"
 or "Lock after driving". 

Controls
 37Reference
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Mobility
>The engine can only be started if the vehicle 
detects that the remote control carried is 
located in the vehicle.
Special features in contrast to ordinary 
remote control
It is basically irrelevant whether you operate the 
above-mentioned functions with the comfort 
access feature or by pressing the buttons on 
the remote control. Before doing so, please 
familiarize yourself with the information on 
opening and closing, starting on page28.
The special features when using comfort 
access are described below.
Unlocking
Completely grasp a door handle, arrow1. 
This corresponds to pressing the  button.
If a remote control is detected in the interior 
after unlocking, the electric steering-wheel lock 
disengages, refer to page58.
Locking doors
Touch the surface, arrow2 on the driver's door 
or3 on the passenger door with a finger for 
approx. 1 second. This corresponds to pressing 
the button.
For comfort closing, hold a finger on the sur-
face, arrow2 or 3.
If a remote control accidentally left in the 
luggage compartment is detected inside 
the locked vehicle after the luggage compart-
ment lid has been closed, then the luggage 
compartment lid opens again. The hazard warn-
ing flashers flash and an acoustic signal
* 
sounds.<
Switching on radio readiness
By briefly pressing the Start/Stop button, you 
switch on the radio readiness, refer to page58.
When doing so, do not depress the brake 
pedal; otherwise, the engine will start 
immediately.<
Starting engine
You can start the engine or switch on the igni-
tion if a remote control is located on the interior 
of the vehicle. It need not be inserted in the igni-
tion lock, refer to page58.
If you take the remote control with you when 
leaving the vehicle with the engine running, a 
warning lamp lights up. In addition, a message 
appears on the Control Display. As long as no 
remote control is detected in the vehicle, it is 
only possible to restart the engine within 
approx. 10 seconds after it is switched off.
Switching off engine with automatic 
transmission
The engine can only be switched off in the 
selector lever position P, refer to page60.
To switch off the engine in the selector lever 
position N, the remote control must be inserted 
in the ignition lock.
Before driving into a car wash with 
automatic transmission
1.Insert the remote control into the ignition 
lock.
2.Depress brake pedal.
3.Place selector lever in position N.
4.Switch off the engine.
The vehicle can roll.
Malfunction
The comfort access function may malfunction 
due to local radio waves. If this occurs, then 
open or close the vehicle with the buttons on 
the remote control or with a key. To start the 
engine after this, insert the remote control in the 
ignition lock. 

Opening and closing
42 In order to avoid damage, do not operate 
the convertible top at temperatures 
below + 147/–106.
Do not leave the convertible top in its storage 
compartment for longer than one day when wet; 
otherwise, damage from moisture can occur.
Do not place any objects on the convertible top; 
otherwise, if the top were to be operated, these 
objects could fall off and lead to damage or 
injury.
Never move the convertible top when the roll-
over protection system is raised.
Driving without having completed the opening 
or closing action can lead to damage or injury.
Do not place hands in the top mechanism dur-
ing the opening and closing action. Keep chil-
dren away from the travel path of the convert-
ible top.
For safety reasons, do not operate the convert-
ible top unless the vehicle is stationary.<
If you have initiated top operation with the 
vehicle at a stop and then start to drive, 
e.g. at a traffic light, you can continue the 
initiated operation up to a speed of 20 mph/
30 km/h:
To do so, press and hold the corresponding 
button.<
Partial vacuums that occur at higher 
speeds in the passenger compartment 
can make the convertible top flap. Use the auto-
matic climate control to increase the air supply 
so that a partial vacuum in the vehicle does not 
occur.<
Prior to opening and closing
>Read the safety precautions above carefully 
and comply with them fully.
>Make sure that the convertible top com-
partment floor in the luggage compartment 
is in the lowered position, refer to page35; 
otherwise, the convertible top cannot be 
opened.
>Make sure that the luggage compartment 
lid is closed.
Opening and closing
Ignition key in radio ready position or higher, 
refer to page58, with the vehicle stationary:
To avoid putting excessive strain on the 
battery, operate the convertible top only 
when the engine is running, if possible.
Before closing the convertible top, remove for-
eign objects from the windshield frame, as 
these might inhibit closing of the convertible 
top.<
1Closing
2LED
3Opening
When the button for operating the con-
vertible top is pressed, the side windows 
move downward slightly and the rear window is 
lowered completely.
If you hold down the button after the LED2 
goes out, then the windows travel upward 
again.
If the convertible top is not completely open or 
closed, then the luggage compartment lid can-
not be opened.<
LED
In the following situations, in addition to the 
LED, a message is displayed on the Control 
Display and an acoustic signal may sound:
>During convertible top operation, the LED 
lights up green. It goes out as soon as the 
opening or closing action is finished.
>If the LED flashes red when you release the 
button, the opening or closing action has 
not yet finished. 

Controls
 51Reference
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Mobility
Getting in back
Before starting to drive, fold backrests 
back, otherwise there is the danger of 
accident due to an unexpected movement of 
the seat.<
Coupe: releasing backrest
Pull the lever upward and fold the backrest for-
ward.
The lever is designed so that the safety belt can 
be hooked onto it. This enables you to fasten 
the safety belt more conveniently.
Convertible: releasing backrest
The belt system integrated into the seat makes 
it easier to get in back.
1.Pull lever 1 up and fold the backrest for-
ward.
2.Press and hold button 2 until the seat has 
moved into the desired position.
3.After passengers have gotten in back, fold 
the backrest back and lock it in place.
4.Press and hold button 3 until the seat has 
moved back into its previous position. If you 
release button 3 before this, the seat stops 
in its current position.You can lock the backrest in place when it 
is folded forward. This is useful, for exam-
ple, when you get into the vehicle while it is 
parked on a hill. Press the backrest until it audi-
bly locks into place. To fold it back, you do not 
have to use lever 1 to release it.<
Lock backrest warning lamp:
Lights up when the backrest is not 
locked. At the same time, an additional 
message appears on the Control Display.
Safety belts
 To ensure that the safety systems con-
tinue to provide optimized protection, 
please follow the adjustment instructions on 
page47.<
Before every drive, make sure that safety belts
are being worn at all of the occupied seats. 
Airbags complement the safety belt as an addi-
tional safety device, but they do not represent a 
substitute.
Fastening
Make sure you hear the latch plate engage in 
the belt buckle. 

Driving
58
Driving
Ignition lock
Insert the remote control as far as possible into 
the ignition lock.
>Radio readiness switches on.
Some electrical devices are ready for oper-
ation.
>The electric steering-wheel lock audibly 
disengages.
Before moving the vehicle, insert the 
remote control into the ignition lock; 
otherwise, the electric steering-wheel lock will 
not be unlocked and the vehicle cannot be 
steered.<
Removing remote control from ignition 
lock
Briefly press in the remote control; it pops out 
slightly.
At the same time:
>The ignition is switched off if it was still 
switched on.
>The electric steering-wheel lock audibly 
engages.
Automatic transmission
The remote control can only be removed when 
the selector lever is in position P: interlock.
Start/Stop button
Briefly pressing the Start/Stop button several 
times switches the radio readiness or the igni-
tion on and off.
Briefly pressing the Start/Stop button 
with the brake or clutch pedal depressed 
starts the engine.<
Radio readiness
Some electrical devices are ready for operation. 
The time and outside temperature are dis-
played in the instrument cluster.
Radio readiness is automatically switched off:
>the moment the remote control is removed 
from the ignition lock
>with comfort access
* by touching the sen-
sitive surface on the door handle, refer to 
Locking doors on page37
Ignition on
Most indicator and warning lamps in the display 
area1 of the instrument cluster, refer to 
page13, light up for different periods.
Radio readiness and ignition off
All indicator and warning lamps in the instru-
ment cluster go out. 

Controls
 59Reference
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Navigation
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Mobility
Starting engine
Do not run the engine in closed rooms; 
otherwise, the inhalation of toxic exhaust 
gases can cause unconsciousness and death. 
The exhaust gases contain carbon monoxide, 
an odorless and colorless, but highly toxic gas.
Never leave an unattended vehicle with the 
engine running, as such a vehicle represents a 
potential safety hazard.
To prevent the vehicle from rolling, always 
engage the handbrake and move the selector-
lever into position P or shift into neutral before 
leaving the vehicle with the engine running.<
When starting the engine, do not press the 
accelerator pedal.
Do not allow the engine to warm up by leaving it 
running while the vehicle remains stationary. 
Instead, begin to drive immediately at a moder-
ate engine speed.
Manual transmission
1.Apply the handbrake.
2.Depress the clutch pedal and select the 
idling position.
3.Briefly press Start/Stop button.
The system responds by automatically engag-
ing the starter for a certain period and automat-
ically disengaging it as soon as the engine 
starts.
Automatic transmission with 
Steptronic*
1.Depress brake pedal.
2.Briefly press Start/Stop button.
The system responds by automatically engag-
ing the starter for a certain period and automat-ically disengaging it as soon as the engine 
starts.
SMG Sequential Manual Gearbox*
1.Depress brake pedal.
2.Move the selector lever into position N and 
make sure that this position is also indi-
cated in the instrument cluster.
3.Briefly press Start/Stop button.
The system responds by automatically engag-
ing the starter for a certain period and automat-
ically disengaging it as soon as the engine 
starts.
If the engine fails to start, depress the 
brake pedal and press the selector lever 
to the right and then back into position N. 
Watch the display in the instrument cluster 
while doing so.<
Special starting conditions
Depress the accelerator pedal halfway when 
starting the engine in the following situations:
>The engine fails to start on the first attempt, 
e.g. if it is very hot or cold.
>The engine is started at very low tempera-
tures below approx. + 57/– 156 and at 
high altitudes over approx. 3,300 ft/
1,000 m.
Avoid frequent starting in quick succes-
sion or repeated start attempts in which 
the engine does not start. Otherwise, the fuel is 
not burned at all or is burned inadequately and 
there is a danger of overheating and damage to 
the catalytic converter.<
Switching engine off
Do not remove the remote control from 
the ignition lock while the vehicle is roll-
ing; otherwise, the steering wheel lock would 
engage while steering.
When leaving the vehicle, always take the 
remote control with you.
When parking on a downhill slope, apply the 
handbrake; otherwise, the vehicle could roll.<