Page 76 of 314

Driving safety systems
>> Safety.
75
!
Because the ESP
® operates automatically,
the engine must be turned off (key in starter
switch position0) when
• the parking brake is being tested on a
brake test dynamometer,
• the vehicle is being towed with the front
axle raised.
Active braking action through the ESP
® may
otherwise seriously damage the brake system
on the rear axle.
i
The ESP
® wi ll on l y f un cti on p ro p er ly if you
use wheels of the recommended tire size
(
page 299).
Hydraulic brake assistantThe 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.
>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 deactivated.
G
Warning!
When the hydraulic brake assistant is
malfunctioning, the brake system is still
functioning normally, but without the
additional brake boost that would nor
mally be provided during an emergency
braking maneuver. Therefore, the brak
ing distance may increase.
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 80 of 314
Antitheft systems
>> Safety.
79
The switch is located in the upper center
console.1
Towaway protection/interior motion sen
sor switch
2
Indicator lamp
>Remove the key from the starter switch.
>Press switch
1 within 60 seconds.
Indicator lamp2 comes on.
>Exit the vehicle.
>Lock the vehicle using the remote control.
i
The towaway protection and the interior
motion sensor remain switched off until you
lock your vehicle again.
P54.25545631
Page 112 of 314
Windshield wipers
>> Controls.
111 Rear window wiper/washer
1
Wiper switch1
Rear window intermittent wiping
2
Wiping rear window with windshield washer
fluid
>Make sure that the key in the starter switch
is turned to position1.> Activating intermittent wiping: Push the
wiper switch in the direction of arrow
1 to
the resistance point.
> Wiping with windshield washer fluid: Push
the wiper switch in the direction of arrow2
past the resistance point and hold in
position until the rear window is clean.
>Release the wiper switch.
The rear window wiper will wipe three more
times.
Intermittent wiping is still activated.
> Deactivating intermittent wiping: Pull the
wiper switch towards you.
i
The rear window wiper wipes one time
when the reverse gear is engaged with the
windshield wipers switched on.
1 coupé only
P54.25536231
Page 125 of 314

Driving and parking
124
>> Controls.
Reversing the vehicle!
Shift the transmission into reverse gearR
only when the vehicle is stopped in order to
avoid damaging the transmission.
You can drive in reverse gear at a speed of up
to9mph (15km/h).
>Depress the brake pedal.
>Press the release button (
page 122) to
disengage the gear selector lever lock.>Move the gear selector lever to reverse
gearR.
appears in the transmission position
indicator.
>Release the brake pedal.
>Carefully depress the accelerator.
ParkingG
Warning!
Do not park this vehicle in areas where
combustible materials such as grass, hay
or leaves can come into contact with the
hot exhaust system, as these materials
could be ignited and cause a vehicle fire.
To reduce the risk of personal injury or
damage to the drivetrain as a result of
vehicle movement, before turning off the
engine and leaving the vehicle always:
• Keep right foot on the brake pedal.
• Pull the parking brake lever up as many
notches as possible.
• Move the gear selector lever to park
positionP.
• Slowly release the brake pedal.
• When parked on an incline, always turn
the front wheels towards the road curb.
• Turn the key in the starter switch to
position0 and remove.
Take the key with you and lock the vehicle
when leaving.G
Warning!
With the engine not running, there is no
power assistance for the brake servo and
the steering system. In this case, it is
important to keep in mind that a consid
erably higher degree of effort is neces
sary to brake and steer the vehicle.
Page 126 of 314

Driving and parking
>> Controls.
125
>Properly stop and park the vehicle.
>Depress the brake pedal.
>Pull up the parking brake lever as many
notches as possible (
page 125).
When the ignition is switched on or the
engine is running, the brake warning
lamp; (USA only) or3 (Canada only)
in the instrument cluster comes on.
>Release the brake pedal.
Parking brake
The parking brake serves to secure the vehi
cle against rolling away when it is stationary
or parked.
1
Parking brake lever
2
Release button
>Applying: Pull up parking brake lever
1 as
many notches as possible.
When the ignition is switched on or the
engine is running, the brake warning
lamp; (USA only) or3 (Canada only)
in the instrument cluster comes on.
> Releasing: Depress the brake pedal.
>Pull up slightly on parking brake lever1
and press release button
2.>Push parking brake lever
1 down as far as
it will go.
When the ignition is switched on or the
engine is running, the brake warning
lamp; (USA only) or3 (Canada only)
in the instrument cluster goes out.
G
Warning!
Engaging the parking brake while the
vehicle is in motion can cause the rear
wheels to lock up. You could lose control
of the vehicle and cause an accident. In
addition, the vehicle’s brake lights do not
light up when the parking brake is
engaged.P42.20234631
G
Warning!
Getting out of your vehicle with the
transmission not fully engaged in park
positionP is dangerous. When the engine
is shut off and the brakes are released,
the vehicle can be moved freely with the
gear selector lever in all positions ex
cept park position P. Also, when parked
on an incline, park positionP alone may
not prevent your vehicle from moving,
possibly hitting people or objects.
Always set the parking brake in addition
to shifting to park positionP.
When parked on an incline, always turn
the front wheels towards the road curb.
Page 127 of 314

Driving and parking
126
>> Controls.Brake pedal
The brake pedal has two brake circuits inde
pendent of each other. A brake servo is used
during braking (when the engine is running) to
increase pedal force.
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.
Children could release the parking brake
and/or move the gear selector lever from
park positionP, either of which could
result in an accident and/or serious
personal injury.
G
Warning
Make sure that absolutely no objects are
obstructing the pedals’ range of move
ment. Keep the driver’s footwell clear of
all obstacles. If there are any floormats*
or carpets in the footwell, make sure that
the pedals still have sufficient clearance.
During sudden driving or braking maneu
vers, objects could become caught be
tween the pedals, reducing or eliminating
entirely the driver's ability to brake or
accelerate. This could lead to accidents
and injury.
G
Warning!
Considerably more effort will be required
to apply the brakes if
• the brake servo has failed
• a brake circuit has failed
• the engine is switched off, e. g. for
towing the vehicle
The braking distance is likewise greater.
Make sure that the engine is running
whenever the vehicle is rolling. Have the
brake system repaired at an authorized
smart center, if there is a fault in the
brake system.
Page 128 of 314
Driving and parking
>> Controls.
127
1
Brake pedalIf a brake circuit has failed (
page 238),
• you must depress the brake pedal further
down to achieve the same effect
• the braking distance is increased
i
The brake servo will only function with the
engine switched on.
Turning off the engine>Depress the brake pedal.
>Press the release button (
page 122) to
disengage the gear selector lever lock.
>Move the gear selector lever to park
positionP.
!
Always set the parking brake in addition to
shifting to park positionP (
page 125).
>Release the brake pedal.
>Turn the key in the starter switch to
position0.
>Remove the key from the starter switch.
The immobilizer is activated.
P42.10259131
G
Warning!
In the event of the vehicle needing to be
towed, a significantly greater amount of
pedal pressure will be required when the
engine is switched off.