Page 50 of 314
Occupant safety
>> Safety.
49
The SRS system conducts a selftest when the
ignition is switched on and in regular inter
vals while the engine is running. This facili
tates detection of malfunctions. The SRS
indicator lamp= in the instrument cluster
comes on when the ignition is switched on and
goes out after approximately four seconds.
The SRS components are in operational readi
ness if the SRS indicator lamp= is not lit
when the engine is running.
A malfunction in the system has been detected
if the SRS indicator lamp=:
• fails to go out after approximately
4 seconds after the ignition was switched
on
•does not come on at all
• comes on after the engine was started or
while driving
G
Warning!
Modifications to or work improperly con
ducted on restraint systems (such as seat
belts and anchors, Emergency Tension
ing Devices, seat belt force limiters or
air bags) or their wiring, as well as tam
pering with interconnected electronic
systems, can lead to the restraint sys
tems no longer functioning as intended.
Air bags or Emergency Tensioning Devic
es, for example, could deploy inadvert
ently or fail to deploy in accidents in
which they otherwise should deploy
(although the deceleration threshold for
air bag deployment is exceeded). There
fore, never modify the restraint systems.
Do not tamper with electronic compo
nents or their software.
G
Warning!
In the event that the SRS indicator
lamp= comes on while driving or does
not come on at all, the SRS selfcheck has
detected a malfunction. For your safety,
we strongly recommend that you immedi
ately but safely pull the vehicle off of the
roadway and stop driving. Contact an au
thorized smart center immediately to
have the system checked; otherwise the
SRS may not deploy when needed in an ac
cident, which could result in serious or
fatal injury, or it might deploy unexpect
edly and unnecessarily which could also
result in injury.
Page 70 of 314
Occupant safety
>> Safety.
69
If you are using a rearfacing child restraint
system on the passenger seat, you must verify
that the passenger front air bag is
deactivated. When the passenger front air bag
is deactivated, the57 indicator
lamp is illuminated (
page 64).Top tether
Top tether permits an additional connection
between a child restraint system and the pas
senger seat. Proper usage of the top tether,
in accordance with instructions provided by
the child restraint manufacturer, can further
reduce the risk of injuries.
The top tether anchorage is located on the
floor of the cargo compartment. The top
tether guide for the top tether strap is locat
ed above, on the head restraint.
1
Top tether guide
2
Passenger seat
3
Top tether anchorage
3
Top tether anchorage
4
Top tether hook
5
Top tether strap of the child restraint
system
>Thread top tether strap
5 into top tether
guide
1 from the front and lead it to the
rear over the head restraint.
>Attach top tether hook
4 in top tether
anchorage
3 on the floor of the cargo
compartment.
Position shoulder belt across chest and
shoulder, not face or neck. A booster seat
may be necessary to achieve proper seat
belt positioning for children over 41 lbs
until they reach a height where a
lapshoulder belt fits properly without a
booster.
When the child restraint is not in use,
remove it from the vehicle or secure it
with the seat belt to prevent the child
restraint from becoming a projectile in
the event of an accident.
Do not leave children unattended in the
vehicle, even if the children are secured
in a child restraint system. Unsupervised
children in a child restraint system may
use vehicle equipment and may cause an
accident and/or serious personal injury.P91.20217631
Page 71 of 314
Occupant safety
70
>> Safety.
i
If you are using divider plus*, the hooks of
the top tether and the divider plus* are at
tached to the same anchorage.
>Fit the restraint system with top tether.
Always follow the manufacturer's assembly
instructions!G
Warning!
After installing top tether straps, make
sure that the seat backrests are in an
upright position and are properly locked.
Check for secure locking by pushing and
pulling on the seat backrests. If a seat
backrest is not properly locked, the seat
backrest could fold. The child seat would
no longer be properly supported or posi
tioned to provide its intended benefit.
Page 77 of 314
Driving safety systems
76
>> Safety.
Activating the hazard warning
flasher after an emergency
braking maneuver If you bring the vehicle to a complete stop by
hard braking at a speed of more than 43 mph
(70 km/h), the hazard warning flasher auto
matically comes on 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 (
page 107)
or until the speed of the vehicle has exceeded
6mph (10km/h).
G
Warning!
The hydraulic brake assistant cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase
braking efficiency beyond that afforded
by the condition 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 hydro
planing. Only a safe, attentive, and skillful
driver can prevent accidents. The capa
bilities of a hydraulic brake assistant
equipped vehicle must never be exploited
in a reckless or dangerous manner which
could jeopardize the user’s safety or the
safety of others.
Page 79 of 314
Antitheft systems
78
>> Safety. >Arming: Lock the vehicle using the remote
control.
Warning system indicator lamp
1 flashes
rapidly.
The antitheft warning system arms after
about 25 seconds.
When the antitheft warning system is
armed, warning system indicator lamp
1
flashes about every three seconds.
i
You can also arm the antitheft warning
system by locking the vehicle without using
the remote control (
page 250).
>Disarming: Unlock the vehicle using the
remote control.
The antitheft warning system is disarmed.
Warning system indicator lamp
1 stops
flashing.
Canceling the alarm
>Insert the key in the starter switch.
>Turn Starter switch in Position 1
(
page 91).
or
>Press button
©
or
ª
on the key.
Towaway alarm* and interior mo
tion sensor*Once the antitheft 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.
>Arming: Lock the vehicle using the remote
control.
The towaway protection and the interior
motion sensor arm after about 25 seconds.
>Disarming: Unlock the vehicle using the
remote control.
The towaway protection and the interior
motion sensor are disarmed.Canceling the alarm
>Insert the key in the starter switch.
>Turn Starter switch in Position 1
(
page 91).
or
>Press button
©
or
ª
on the key.
Switching off towaway protection and
interior motion sensor
Deactivate the towaway protection and the
interior motion sensor when locking the vehi
cle and
• transporting the vehicle,
• board, e.g. a ferry or auto train,
• there are people or animals in the vehicle,
• the side windows remain open.
This prevents any false alarm.
Page 82 of 314
>> Controls.Opening and closing . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Starter switch positions . . . . . . . . . . . . . . . . . . . . . . . 91
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Soft top system (cabrio only) . . . . . . . . . . . . . . . . . . 112
Side windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Driving and parking . . . . . . . . . . . . . . . . . . . . . . . . . 122
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Audio system* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Air conditioning with climate control* . . . . . . . . . . . 150
Rear window defroster . . . . . . . . . . . . . . . . . . . . . . . 154
Loading and storing . . . . . . . . . . . . . . . . . . . . . . . . . 155
Useful features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Page 83 of 314
Opening and closing
82
>> Controls.
KeyKey with remote control1
ª
Lock button
2
»
Opening the retractable soft top
1/
unlocking the upper tailgate
2
3
 Panic button (
page 71)
4
©
Unlock buttonThe remote control centrally locks and
unlocks:
• the driver door
• the fuel filler flap
• the passenger door
• the upper tailgate
!
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.
>Check the batteries in the remote control
and replace them if necessary
(page 252).
>If you do not have a spare transmitter
battery at hand, use the key to open the
driver door and the fuel filler flap
(page 250).
If the remote control is malfunctioning,
contact an authorized smart center.
1 cabrio only.
2 coupé only.
P80.35231331
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.
Page 87 of 314
Opening and closing
86
>> Controls.
Opening the upper tailgate on the
coupé1
Handle recess>Press button
©
on the key twice.
>Press and hold button
»
on the key for ap
proximately two seconds.
or
>Pull the release handle in handle recess
1
of the lower tailgate.
The upper tailgate is unlocked.
>Swivel the upper tailgate upwards to open.
Observe information on loading the vehicle
(
page 155).
For information on vehicle weights, see
(page 301).
Opening the lower 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.
G
Warning!
High outside temperature, stopandgo
traffic, driving on long uphill grades, or
driving at high engine speed may in
crease the temperature in the engine
compartment. Therefore the area around
the air slots in the rear apron may be hot.
Let the engine cool off before touching
this area to prevent burns.
