
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the
event of
R strong braking maneuvers
R sudden changes of direction
R an accident
Infant and child restraint system We recommend all infants and children be
properly restrained at all times while the
vehicle is in operation.
The passenger lap-shoulder belt has a spe-
cial seat belt retractor for secure fasten-
ing of child restraints.
To fasten a child restraint, follow all
mounting instructions provided by the
child restraint manufacturer. Then pull the
shoulder seat belt out completely and let it
retract. During seat belt retraction, a
ratcheting sound can be heard to indicate
that the special seat belt retractor is acti-
vated. The seat belt is now locked. Push
down on child restraint to take up any
slack.
To deactivate, release seat belt buckle and
let seat belt retract completely. To deac-
tivate the special seat belt retractor for
the passenger seat, the passenger seat must
be in the most backward position. The seat
belt can again be used in the usual manner. G
WARNING
Never release the seat belt buckle while the
vehicle is in motion, since the special seat
belt retractor will be deactivated.
The use of infant or child restraints is
required by law in all 50 states, the Dis-
trict of Columbia, the U.S. territories, and
all Canadian provinces and territories.
Infants and small children should be seated
in an appropriate infant or child restraint
system properly secured in accordance
with the manufacturer’s instructions for
the child restraint, that complies with U.S.
Federal Motor Vehicle Safety Standards 213 and 225 and Canadian Motor Vehicle Safety
Standards 213, 213.1 and 213.2.
A statement by the child restraint manu-
facturer of compliance with these stand-
ards can be found on the instruction label
on the restraint and in the instruction
manual provided with the restraint.
When using any infant restraint, toddler
restraint, or booster seat be sure to care-
fully read and follow all manufacturer’s
instructions for installation and use.
Please read and observe warning labels
affixed to the inside of the vehicle and to
infant or child restraints.
G
WARNING
Children 12 years old and under must be
seated and properly secured in an appro-
priately sized infant restraint, toddler
restraint, or booster seat recommended for
the size and weight of the child.
The infant or child restraint must be prop-
erly secured with the vehicle’s seat belt
fully in accordance with the child seat
manufacturer’s instructions.
Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door where the
head-thorax air bags (cabriolet), window
curtain air bags (coupé) and thorax-pelvis
air bags (coupé) inflates. This could result
in serious injuries or death should the
head-thorax air bags (cabriolet), window
curtain air bags (coupé) and thorax-pelvis
air bags (coupé) be triggered. Always sit as
upright as possible, properly use the seat
belt and use an appropriately sized infant
restraint, toddler restraint, or booster
seat recommended for the size and weight
of the child.
Children can be killed or seriously injured
by an inflating air bag. Note the following
important information when circumstances
require you to place a child in the
passenger seat: Occupant safety
43>> Safety.
Z

The top tether anchorage is located on the
floor of the cargo compartment. The top
tether guide for the top tether strap is
located above, on the head restraint. X
Thread top tether strap 0083through top
tether guide 0043down the back of
passenger seat 0044to top tether anchor-
age 0087.
X Attach top tether hook 0085to top tether
anchorage 0087on the floor of the cargo
compartment.
i If you are using divider plus*, the
hooks of the top tether and the divider
plus* are attached to the same anchorage.
X Install the child restraint system and
tighten top tether strap 0083according to
the child restraint manufacturer’s
instructions. G
WARNING
After installing top tether straps, make
sure the seat backrests are in an upright
position and are properly locked. Push and pull on the seat backrests to ensure they are
properly secured in the locked position. If
a seat backrest is not properly locked, the
seat backrest could fold. The child seat
would no longer be properly supported or
positioned to provide its intended bene-
fit. That could cause serious or even fatal
injuries. Panic alarm
X
Activating: Press and hold button 0043for
at least 1 second.
An audible alarm and flashing exterior
lamps will operate briefly.
X Deactivating: Press button0043once more.
or
X Insert the key in the starter switch.
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 interfer-
ence 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 cer-
tification number can be found in the
battery case. Panic alarm
45>> Safety.
* optional Z

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 interfer-
ence, and
2. this device must accept any interfer-
ence 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 cer-
tification number can be found in the
battery case. Driving safety systems
Introduction
G
WARNING
The following factors increase the risk of
accidents:
R Excessive speed, especially in turns
R Wet and slippery road surfaces
R Following another vehicle too closely
The driving safety systems described in
this section cannot reduce these risks or
prevent the natural laws of physics from
acting on the vehicle.
Always adapt your driving style to the pre-
vailing road and weather and traffic con-
ditions and keep a safe distance to other
road users and objects on the street.
i In winter operation, the maximum
effectiveness of the ABS, the hydraulic
brake assistant, and the ESP ®
is only ach-
ieved with winter tires (Y page 146) or
snow chains* as required. Antilock Brake System (ABS)
G
WARNING
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.
The Antilock BrakeSystem (ABS) regulates
the brake pressure so that the wheels do not
lock during braking. This allows you to
maintain the ability to steer your vehicle.
On slippery road surfaces, the ABS will
respond even to light brake pressure.
The ABS indicator lamp in the instrument
cluster (Y page 24) comes on when you
switch on the ignition. It goes out when the
drive system is active.
Braking At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in
the brake pedal, indicating that the ABS is
regulating the brake pressure.
X
Keep firm and steady pressure on the
brake pedal while experiencing the pul-
sation.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
A pulsating brake pedal can be an indica-
tion of hazardous road conditions and
functions as a reminder to take extra care
while driving.
Emergency brake maneuver X
Keep continuous full pressure on the
brake pedal. G
WARNING
When the ABS is malfunctioning, the
hydraulic brake assistant and the ESP ®
are
also switched off. 46
Driving safety systems>> Safety.
* optional

When the ABS is malfunctioning, the wheels
may lock during hard braking, reducing
steering capability and extending the
braking distance. G
WARNING
The ABS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking or steering efficiency
beyond that afforded by the condition of the
vehicle brakes and tires or the traction
afforded. The ABS cannot prevent acci-
dents, including those resulting from
excessive speed in turns, following
another vehicle too closely, or hydroplan-
ing. Only a safe, attentive, and skillful
driver can prevent accidents. The capabil-
ities of an ABS equipped vehicle must never
be exploited in a reckless or dangerous
manner which could jeopardize the user’s
safety or the safety of others. Electronic Stability Program (ESP
®
)
Your vehicle is equipped with the Elec-
tronic Stability Program (ESP ®
). The ESP ®
is operational as soon as the drive system
is switched on and it monitors the vehicle’s
traction (force of adhesive friction
between the tires and the road surface) and
handling.
The ESP ®
recognizes when a wheel is spin-
ning or if the vehicle starts to skid. By
applying brakes to the appropriate wheel
and by limiting the power output, the ESP ®
works to stabilize the vehicle. The ESP ®
is
especially useful while driving off and on
wet or slippery road surfaces. The ESP ®
also
stabilizes the vehicle during braking and
steering maneuvers.
The ESP ®
warning lamp 00E5in the instru-
ment cluster flashes when the ESP ®
is
engaged.
The ESP ®
warning lamp 00E5in the instru-
ment cluster comes on when you switch on the ignition. It goes out when the drive
system is active.
Depending on the driving situation, the
ESP ®
R reduces the speed
R selectively brakes individual wheels
R equalizes the speed of the driven wheels
R stabilizes the vehicle when braking
R assists you in evasive maneuvers on all
roads G
WARNING
If the ESP ®
warning lamp 00E5in the
instrument cluster flashes, proceed as fol-
lows:
R While driving off, apply as little throt-
tle as possible.
R While driving, ease up on the accelerator
pedal.
R Adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The ESP ®
cannot prevent accidents result-
ing from excessive speed. G
WARNING
The ESP ®
cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase the traction afforded. The
ESP ®
cannot prevent accidents, including
those resulting from excessive speed in
turns, or hydroplaning. Only a safe, atten-
tive, and skillful driver can prevent acci-
dents. The capabilities of an ESP ®
equip-
ped vehicle must never be exploited in a
reckless or dangerous manner which could
jeopardize the user’s safety or the safety of
others.
! Because the ESP ®
operates automati-
cally, the ignition must be switched off
when the parking brake is being tested
on a brake test dynamometer. Active
braking action through the ESP ®
may oth- Driving safety systems
47>> Safety. Z

erwise seriously damage the brake sys-
tem which is not covered by the smart
Limited Warranty.
i The ESP ®
will only function properly if
you use wheels of the recommended tire
size (Y page 216). Hydraulic brake assistant
The hydraulic brake assistant operates in
emergency situations. If you apply the
brakes very quickly, the hydraulic brake
assistant automatically provides full
brake boost, thereby potentially reducing
the braking distance.
X Apply continuous full braking pressure
until the emergency braking situation is
over.
The ABS will prevent the wheels from
locking.
When you release the brake pedal, the
brakes function again as normal. The
hydraulic brake assistant is then deacti-
vated. G
WARNING
When the hydraulic brake assistant is mal-
functioning, the brake system is still func-
tioning normally, but without the addi-
tional brake boost that would normally be
provided during an emergency braking
maneuver. Therefore, the braking distance
may increase. G
WARNING
The hydraulic brake assistant cannot pre-
vent the natural laws of physics from acting
on the vehicle, nor can it increase braking
efficiency beyond that afforded by the con-
dition of the vehicle brakes and tires or the
traction afforded. The hydraulic brake
assistant cannot prevent accidents,
including those resulting from excessive
speed in turns, following another vehicle
too closely, or hydroplaning. Only a safe,
attentive, and skillful driver can prevent accidents. The capabilities of a hydraulic
brake assistant equipped vehicle must
never be exploited in a reckless or dan-
gerous manner which could jeopardize the
user’s safety or the safety of others.
Activating the hazard warning flasher
after an emergency braking maneuver
If you bring the vehicle to a complete stop
by strongly braking at a speed of more than
43 mph (70 km/h), the hazard warning
flasher comes on automatically as soon as
the vehicle is at a standstill. The hazard
warning flasher will remain on until it is
switched off using the hazard warning
flasher switch (Y page 68) or until the
speed of the vehicle has exceeded 6 mph
(10 km/h). Acoustic Vehicle Indication*
Vehicles with electric motors develop con-
siderably lower driving noises than vehi-
cles with combustion engines. Therefore
your vehicle in traffic might not be acous-
tically noticed by other road users in cer-
tain situations.
In order to avoid this, a built-in sound
generator emits a certain noise (Acoustic
Vehicle Indication) within a speed range
between 0 to 20 mph (30 km/h). Thus, other
road users, especially pedestrians and
bicycle riders can notice your vehicle bet-
ter. Acoustic Vehicle Indication can also
be heard inside of the vehicle.
The volume of Acoustic Vehicle Indication
depends on the current engine speed (rpm).
The stronger you accelerate, the louder the
noise. At speed of more than 20 mph
30 km/h the noise is switched off. From this
speed on the natural noises of the vehicle
are sufficient so that other road users can
notice the vehicle on time. 48
Driving safety systems>> Safety.
* optional

Anti-theft systems
Electronic immobilizer
The electronic immobilizer prevents
unauthorized persons from starting your
vehicle.
When leaving the vehicle, always take the
key with you and lock the vehicle. The drive
system can be switched on by anyone with a
key that is left inside the vehicle.
X Activating: Remove the key from the
starter switch.
X Deactivating: Insert the key in the
starter switch.
X Turn the key to starter switch position 1.Anti-theft warning system*
Once the anti-theft warning system has
been armed, a visual and audible alarm is
triggered when
R someone opens a door or the tailgate
R someone enters the vehicle’s interior
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 0043
flashes rapidly. The anti-theft warning
system arms after about 25 seconds. When
the anti-theft warning system is armed,
warning system indicator lamp 0043
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 177).
X Disarming: Unlock the vehicle using the
remote control.
The anti-theft warning system is dis-
armed. Warning system indicator
lamp 0043stops 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 0034or0038 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. Anti-theft systems
49>> Safety.
* optional Z

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 0034or0038 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 vehi-
cle,
R the side windows remain open.
This prevents any false alarm. X
Remove the key from the starter switch.
X Press switch 0043within 60 seconds.
Indicator lamp 0044comes on. X
Exit the vehicle.
X Lock the vehicle using the remote
control.
i The tow-away protection and the inter-
ior motion sensor remain switched off
until you lock your vehicle again. 50
Anti-theft systems>> Safety.

Opening and closing
Key
Key with remote control
0043
0038Lock button
0044 0035Opening the retractable soft top 3
/
unlocking the upper tailgate 4
0087 0034Unlock button
The remote control centrally locks and
unlocks:
R the driver’s door
R the charge socket 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 chil-
dren unattended in the vehicle, or with
access to an unlocked vehicle. It is possi-
ble for children to open a locked door from
the inside, which could result in an acci-
dent and/or serious personal injury.
! To prevent possible malfunction, avoid
exposing the remote control to high lev-
els of electromagnetic radiation.
If you can no longer lock or unlock the vehi-
cle with the remote control, the batteries
in the remote control are discharged, or
the remote control is malfunctioning. X
Check the batteries in the remote control
and replace them if necessary.
X If you do not have a spare transmitter
battery at hand, use the key to open the
driver’s door and the charge socket flap
(Y page 177).
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 interfer-
ence 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 cer-
tification 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 interfer-
ence, and
2. this device must accept any interfer-
ence 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 cer-
tification number can be found in the
battery case.
! The remote control has an operating
range of approximately 50 ft (15 meters).
This can fluctuate greatly as a conse-
quence of local conditions (reflective or
3 cabriolet only.
4 coupé only. 52
Opening and closing>> Controls.