
R
there is motion inside the vehicle
R someone attempts to raise the vehicle
The alarm will also be triggered when
unlocking and opening the driver’s door
with the key.
i The alarm will stay on, even if the
driver’s
door is immediately closed. For
canceling the alarm, see ( Y page 49).
Close the windows and the tailgate before
arming the alarm system. Make sure there
are no moving objects inside the vehicle. X
Arming: Lock the vehicle using the
remote control.
Warning system indicator lamp :
flashes rapidly. The anti-theft warning
system
arms after about 25 seconds. When
the anti-theft warning system is armed,
warning system indicator lamp :
flashes about every three seconds.
i You
can also arm the anti-theft warning
system by locking the vehicle without
using the remote control (Y page 176).
X Disarming: Unlock the vehicle using the
remote control.
The anti-theft warning system is
disarmed. Warning system indicator
lamp : stops flashing.
Canceling the alarm X
Insert the key in the starter switch.
X Turn the key to starter switch position 1.
or
X Press button # or * on the key. Tow-away alarm* and interior motion
sensor*
Once the anti-theft warning system has
been armed, a visual and audible alarm is
triggered when someone attempts to raise
the
vehicle or if motion is detected inside
the vehicle.
X Arming: Lock the vehicle using the
remote control.
The
tow-away protection and the interior
motion sensor are armed after about
25 seconds.
X Disarming: Unlock the vehicle using the
remote control.
The
tow-away protection and the interior
motion sensor are disarmed.
Canceling the alarm X
Insert the key in the starter switch.
X Turn the key to starter switch position 1.
or
X Press button # or * on the key.
Switching off tow-away protection and
interior motion sensor Switch off the tow-away protection and the
interior motion sensor when locking the
vehicle and
R
transporting the vehicle,
R board, e.g. a ferry or auto train,
R there are people or animals in the
vehicle,
R the side windows remain open.
This prevents any false alarm. Anti-theft systems
49
>> Safety.
* optional Z

Opening and closing
Key
Key with remote control
:
* Lock button
; $ Opening the retractable soft top 6
/
unlocking the upper tailgate 7
= # Unlock button
The remote control centrally locks and
unlocks:
R the driver’s door
R the fuel filler flap
R the passenger door
R the upper tailgate G
WARNING
When leaving the vehicle, always remove the
key from the starter switch, take it with
you, and lock the vehicle. Do not leave
children
unattended in the vehicle, or with
access to an unlocked vehicle. It is
possible for children to open a locked door
from the inside, which could result in an
accident and/or serious personal injury.
! To prevent possible malfunction, avoid
exposing the remote control to high
levels of electromagnetic radiation.
! If you can no longer lock or unlock the
vehicle with the remote control, the
batteries in the remote control are discharged, or the remote control is
malfunctioning.
R
Check the batteries in the remote
control
and replace them if necessary.
R If you do not have a spare transmitter
battery at hand, use the key to open the
driver’s door and the fuel filler flap.
If the remote control is malfunctioning,
contact an authorized smart center.
i USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any
interference received, including
interference that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The product label with FCC ID and IC
certification number can be found in the
battery case.
i Canada only:
This device complies with RSS‑210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause
interference, and
2. this device must accept any
interference received, including
interference that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The product label with FCC ID and IC
certification number can be found in the
battery case.
6 cabriolet only.
7 coupé only. 52
Opening and closing
>> Controls.

!
The remote control has an operating
range
of approximately 50 ft (15 meters).
This can fluctuate greatly as a
consequence of local conditions
(reflective or absorbing objects) and
interference emitted by other radio
transmission systems. Similarly, the
operating range fluctuates in line with
the direction from which the remote
control is activated.
To prevent theft, however, it is advisable
to only unlock the vehicle when you are
in close proximity to it. Locking and unlocking from the
outside
X Selective unlocking: Press button # on
the key once.
All turn signal lamps flash once.
The anti-theft warning system* is
disarmed.
The
driver’s door and the fuel filler flap
are unlocked.
X Global unlocking:
Press button # on the
key twice.
All turn signal lamps flash once again.
The passenger door and the tailgate are
unlocked in addition to the driver’s door
and the fuel filler flap.
X Global locking: Press button * on the
key.
With the doors, the tailgate(s), and the
fuel filler flap closed, the turn signal
lamps flash three times.
The
anti-theft warning system* is armed.
The indicator lamp on the central
locking switch flashes (Y page 54).
The interior and exterior 8
lamps come on
and then go out again after 12 seconds.
i In vehicles with anti-theft warning
system*, an acoustic signal will sound
when locking or unlocking the vehicle. When unlocking, the acoustic signal
sounds once. When locking, the acoustic
signal sounds three times.
The acoustic signal is activated at the
factory. If you wish to deactivate the
feature, contact an authorized smart
center.
Automatic locking
Auto-relock function The vehicle will lock again automatically
within approximately 60 seconds of
unlocking with the key if neither the
driver’s nor passenger door is opened.
!
To prevent an inadvertent lockout,
never
leave your key lying in the vehicle.
Drive lock function The vehicle locks automatically when the
ignition
is switched on and the wheels are
turning at vehicle speeds of approximately
8 mph (14 km/h) or more. The drive lock
function is enabled at the factory.
X Switching on: Switch off the ignition.
X Press the central locking switch
(Y page 54) and button * on the key
simultaneously.
An acoustic signal sounds.
The drive lock function is switched on.
X Switching off: Switch off the ignition.
X Press the central unlocking switch
(Y page 54) and button # on the key
simultaneously.
An acoustic signal sounds.
The drive lock function is switched off.
8 Vehicles with rain-light sensor* only. Opening and closing
53
>> Controls.
* optional Z

Locking and unlocking from the inside
G
WARNING
When leaving the vehicle, always remove the
key from the starter switch, take it with
you, and lock the vehicle. Do not leave
children
unattended in the vehicle, or with
access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
You can lock and unlock the vehicle from
inside using the central locking or
unlocking switch. This can be useful, for
example, if you want to unlock the
passenger door from inside or lock the
vehicle before starting to drive. X
Locking: Press central locking
switch :.
The indicator lamp on central locking
switch : comes on, when the starter
switch is in position 1.
The indicator lamp on central locking
switch : flashes, when the starter
switch is in position 0.
With the doors and the tailgate closed,
the vehicle locks.
X Unlocking: Press central unlocking
switch ;.
The vehicle unlocks and the indicator
lamp on central locking switch : goes
out. Opening the doors from the inside
You
can open a locked door from the inside.
Open door only when conditions are safe to
do so. X
Pull on inside door handle :.
With the driver’s door open a warning
signal sounds if the exterior lamps are
switched
on and the ignition is switched
off. Opening the upper tailgate on the
coupé
G
WARNING
Make sure the tailgate is closed when the
engine is running and while driving.
Among other dangers, deadly carbon
monoxide (CO) gases may enter vehicle
interior resulting in unconsciousness and
death. 54
Opening and closing
>> Controls.

X
Make sure the parking lamps or the
low‑beam headlamps are switched on.
X Switching on: Press switch :.
The front fog lamps come on.
The indicator lamp in the switch comes
on.
X Switching off: Press switch : once
more.
The front fog lamps go out.
The indicator lamp in the switch goes
out. Hazard warning flasher
The hazard warning flasher can be switched
on at all times, even with the key removed
from the starter switch. X
Switching on: Press hazard warning
flasher switch :.
All turn signal lamps are flashing.
X Switching off: Press hazard warning
flasher switch : once more. Interior lighting
The
interior lamp comes on for a period of
time when you open the doors, or lock or
unlock the vehicle with the key.
It goes out
R immediately after switching off the
ignition with all doors closed
R after 30 seconds if the doors are not
opened
R after 15 seconds if all doors are closed
R after 10 minutes if at least one door is
open
The rocker switch can be set to three
different positions. :
Interior lamp
; Off
= Switching on the automatic control
? Continuous operation
Automatic control X
Set the rocker switch to position =.
The interior lamp comes on for a period
of time.
Switching off X
Set the rocker switch to position ;.
The interior lamp is permanently
switched off. Lighting
69
>> Controls. Z

Continuous operation
X
Set the rocker switch to position ?.
The interior lamp is permanently
switched on.
! When leaving the vehicle, make sure the
interior lamp is not set to continuous
operation and none of the doors is left
open for a long period of time.
Doing otherwise could result in a
discharged battery.
Ambient lighting* The ambient lighting illuminates the
vehicle
interior with 6 LEDs when the low-
beam headlamps are switched on. The LEDs
can be dimmed.
The LEDS are located
R in the overhead control panel
R in the door pockets, driver’s and
passenger side
R in the storage trays to the left and right
of the steering wheel
R in the storage compartment, passenger
side
In addition to the ambient lighting, the
footwells on the driver’s and passenger
side are also illuminated by separate
lamps.
i When you open a door, the interior
lighting comes on and the brightness of
lamps in the footwells increases. X
Make sure the key is in starter switch
position 1.
X Switch on the low-beam headlamps.
X To brighten or dim ambient lighting:
Press button : repeatedly until the
desired setting is reached.
The current setting is stored.
i When adjusting the ambient lighting,
the illumination level for instrument
cluster is also changed (Y page 92). Windshield wipers
Switching windshield wipers on and off
Example illustration coupé
X
Make sure the key is in starter switch
position 1.
X Switching on: Turn the wiper switch to
position 2 or 3, depending on the
intensity of the rain.
! Do not operate the windshield wipers
when the windshield is dry. Dust that
accumulates on a windshield might
scratch the glass and/or damage the
wiper
blades when wiping occurs on a dry
windshield. If it is necessary to operate
the windshield wipers in dry weather
conditions, always operate the
windshield wipers with windshield
washer fluid.
! If anything blocks the windshield
wipers (leaves, snow, etc.), switch them
off immediately. 70
Windshield wipers
>> Controls.
* optional

Rear window wiper/washer (coupé only)
X
Make sure the key is in starter switch
position 1.
X Activating intermittent wiping: Push the
wiper switch to position 1.
X Wiping with windshield washer fluid:
Push the wiper switch in direction of
arrow ; and hold in position until the
rear window is clean.
X Release the wiper switch.
The rear window wiper will wipe three
more times.
Intermittent wiping is still activated.
X Deactivating intermittent wiping: Pull
the wiper switch back to start position.
i The rear window wiper wipes one time
when reverse gear R is engaged with the
windshield wipers switched on. Soft top system (cabriolet only)
Introduction
The soft top system of the smart cabriolet
consists of a
R retractable soft top
R rear soft top
R side rails
You
can remove the side rails over the doors
when you open the retractable soft top and
open the rear soft top. i
Opening the rear soft top is possible
after the retractable soft top has been
opened completely. Notes on the soft top system
! When transporting long objects inside
the vehicle, make sure they do not press
against the retractable soft top when it
is closed.
When
carrying objects that protrude from
the rear of the vehicle, make sure they
are not resting on the retaining clips.
When loading, make sure no sharp objects
come into contact with the soft top or the
rear window.
Do not place any evenly distributed loads
with a weight of more than 165 lbs (75 kg)
on the rear soft top when folded down.
Make sure the high-mounted brake lamp
is not concealed.
! Do not block the soft top system’s
locking apertures.
Only place the side rails in the
designated storage space of the tailgate.
! Do not sit on the folded-down rear soft
top.
Do not fold down the rear soft top at
temperatures below 14 ¦ (-10¥).
Do not place any pointed, sharp-edged,
hot (above 176 ¦ [80¥]), incandescent or
burning objects on the soft top’s lining.
Do not apply wax to the soft top fabric and
select only wax-free washing products
when using an automatic car wash.
Only drive with the retaining clips
closed, as exhaust fumes could otherwise
reach the vehicle’s interior.
! Please keep in mind that weather
conditions can sometimes change
rapidly. Make sure to close the
retractable soft top and the rear soft top
when leaving the vehicle. If water enters
the vehicle interior, vehicle 72
Soft top system (cabriolet only)
>> Controls.

:
Front right
; Rear right
= Rear left
? Front left
X Close the storage compartment cover.
X Press on the “PRESS” marking in the
middle
of the storage compartment cover
until it engages audibly. G
WARNING
Always close the storage compartment cover
properly when storing the side rails.
Otherwise occupants could be injured by
the side rails moving about during
R braking
R vehicle maneuvers
R an accident
X Close the tailgate. Let the tailgate lock
into place.
X Close the driver’s and passenger door.
X Open the side windows if desired.
! Make sure the storage compartment
cover is closed before closing the
tailgate. Otherwise the tailgate could
jam. Mounting the side rails
X Open the driver’s and passenger door
when conditions are safe to do so.
X Open the tailgate. X
Pull handle : on the inside of the
tailgate backward.
X Lift up the storage compartment cover.
X Remove the side rails from the storage
compartment in the tailgate. ;
Front right
= Rear right
? Rear left
A Front left
X Install the side rails with the respective
front end ; or A first. G
WARNING
Make sure the side rails are properly
mounted. Otherwise the side rails could
disengage
while driving and injure you and
other persons. 76
Soft top system (cabriolet only)
>> Controls.