2016 MERCEDES-BENZ CLA brake

Important safety notes
G WARNIN G
When leaving th e vehicle, it can still rol l away
despit e bein g braked by th e HOLD function if:R
there is a malfunction in th e system or in
th e voltag e supply.R
th e HOLD function has been deactivated by
pressin g th e accelerato r pedal or th e brak e
pedal , e.g. by a vehicl e occupant .R
th e electrical system in th e engin e com-
partment, th e battery or th e fuses have
been tampered with. R
th e battery is disconnected
Ther e is a ris k of an accident.
If you wish to exit th e vehicle, always tur n off
th e HOLD function and secure th e vehicl e
against rollin g away.
! If DI ST RONIC PLUS or the HOLD function
is activated, the vehicle brakes automat i-
cally in certain situations.
To prevent damage to the vehicle, deacti-
vate DI ST RONIC PLUS and the HOLD func-
tion in the fol lowin g or other similar situa-
tions: R
when to win g the vehicleR
in the car wash
Deactivating the HOLD function
( Y
page 188).
Activation conditions
You can activate the HOLD function if: R
the vehicle is stationaryR
the engine is running or if it has been auto-
matical ly swit ched off by the ECO start/
stop function R
the driv er's door is closed or your seat belt
is fastened R
the electr ic parking brake is releasedR
DI ST RONIC PLUS is deactivatedR
the transmission is in position D , R or N on
vehicles wit h automatic transmission Activating the HOLD function X
Make sure that the act ivat ion cond it ions
are met. X
Depress the brake pedal. X
Quickly depr ess the brake pedal further
unt il C appears in the multifunction dis-
play.
The HOLD function is act ivat ed. You can
release the brake pedal.
i If depr essing the brake pedal the first
time does not activate the HOLD function,
wait brie fly and then try again.
Deactivating the HOLD function
The HOLD function is deactivated automat i-
cally if: R
you accelerate. On vehicles wit h automat ic
transmission: on ly when the transmission
is in pos it ion D or R . R
the transmission is in pos it ion P on vehicles
wit h automat ic transmission. R
you depress the brake pedal again wit h a
certain amount of pressure unt il C disap-
pears from the multifunction display. R
you act ivat e DI ST RONIC PLU S.R
you secure the vehicle using the electr ic
parking brake.
i After a time, the electr ic parking brake
secures the vehicle and relieves the ser vic e
brake.188
Driving systems
Driving and parking

When the HOLD function is activated, the
transmission is shifted automatically to posi-
tion P if: R
the driver's seat belt is not fastened and the
driver's door is open. R
the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
The electric parking brake secures the vehicle
automatically if the HOLD function is activa-
ted when the vehicle is stationary and: R
a system malfunction occurs. R
the power supply is not sufficient.
Start-off assist (except Mercedes-
AMG vehicles)
Important safety notes
G WARNING
If you use start-off assist, individual wheels
may start to spin and the vehicle may skid. If
ESP ®
is deactivated, there is a greater danger
of skidding and having an accident. Make sure
that no persons or obstacles are in the vicinity
of the vehicle.
Start-off assist enables optimum acceleration
from a standstill. For this, a suitably high-grip
road surface is required, along with the tires
and vehicle being in proper operating condi-
tion.
Do not activate start-off assist on public
roads.
Observe the safety notes on driving safety
systems ( Y
page 65).
Be sure to read the safety notes and informa-
tion on ESP ®
( Y
page 69).
Activating start-off assist X
Deactivate ESP ®
( Y
page 219).X
Turn the steering wheel to the straight-
ahead position. X
Depress the brake pedal firmly with your
left foot and keep the brake pedal
depressed. X
Shift the transmission to position D .X
Use the DYNAMIC SELECT button to select
the S drive program ( Y
page 155).X
Quickly depress the accelerator pedal fully. X
Take your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accel-
eration.
i Activate ESP ®
as soon as the acceleration
process has ended. ESP ®
will otherwise not
be able to stabilize the vehicle if the vehicle
starts to skid or a wheel starts to spin.
Canceling start-off assist X
Remove your foot from the accelerator
pedal. X
Reactivate ESP.
RACE START (AMG vehicles)
Important safety notes
i RACE START must not be used on normal
roads. RACE START must only be activated
and used on dedicated road circuits, out-
side of public road use.
i RACE START is only available in
Mercedes ‑ AMG vehicles.
G WARNING
If you use RACE START, individual tires may
start to spin and the vehicle could skid.
Depending on the selected ESP ®
mode, there
is an increased risk of skidding and having an
accident. Make sure that no persons, animals
or obstacles are within range of the vehicle.
RACE START enables optimal acceleration
from a standing start. For this, a suitably high-
grip road surface is required, along with the
tires and vehicle being in proper operating
condition. Driving systems 189
Driving and parking Z

i Observe the safety notes on driving safety
systems ( Y
page 65).
Be sure to read the safety notes and infor-
mation on ESP ®
( Y
page 69).
Conditions for activation You can activate RACE START if: R
the doors, hood and the trunk lid are
closed. R
the engine is running and the transmission,
all-wheel drive clutch and the engine are at
operating temperature. R
the steering wheel is in the straight-ahead
position. R
the vehicle is stationary and the brake
pedal is depressed (left foot). R
the transmission is in position D .R
drive program S , S+ or RACE is selected
( Y
page 156).
Activating RACE START X
Depress the brake pedal with your left foot
and keep it depressed. X
Pull and hold both steering wheel paddle
shifters. X
The RACE START Confirm: Paddle UP
Cancel: Paddle DOWN message appears
in the multifunction display. X
Release both steering wheel paddle shift-
ers.
i If the activation conditions are no longer
fulfilled, RACE START is canceled. The
RACE START Not Possible See Opera‐
tor's Manual message appears in the
multifunction display. X
To cancel: pull the left steering wheel pad-
dle shifter ( Y
page 164).
or X
To confirm: pull the right steering wheel
paddle shifter ( Y
page 164).
The RACE START Available Depress
gas pedal message appears in the multi-
function display. i If you do not depress the accelerator
pedal within a few seconds, RACE START is
canceled. The multifunction display shows
the RACE START Canceled message.X
Fully depress the accelerator pedal.
The engine speed is increased.
The RACE START Release brake to
start message appears in the multifunc-
tion display.
i If you do not release the brake pedal
within a short time, RACE START will be
canceled. The multifunction display shows
the RACE START Canceled
message.X
Take your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accel-
eration.
The RACE START Active message appears
in the multifunction display.
RACE START is deactivated when the vehicle
reaches a speed of approximately 50 km/h.
RACE START is deactivated immediately if
you release the accelerator pedal during
RACE START or if any of the activation condi-
tions are no longer fulfilled. The RACE
START
Not Possible or RACE START Canceled
message appears in the multifunction dis-
play.
i If RACE START is used repeatedly within a
short period of time, it is only available
again after the vehicle has been driven a
certain distance.
AMG adaptive sport suspension sys-
tem
General notes
The electronically controlled damping system
works continuously. This improves driving
safety and ride comfort.190
Driving systems
Driving and parking

dampers. The damping characteristics adapt
to the current operating and driving situation.
The damping is tuned individually to each
wheel and depends on: R
your driving style, e.g. sporty R
the road surface conditions R
the drive program selected R
the vehicle level setting
The drive program can be set using the
DYNAMIC SELECT button ( Y
page 155).
Selecting Comfort mode In the Comfort drive program, the driving
characteristics of your vehicle are more com-
fortable. Therefore, select this mode if you
favor a more comfortable driving style. Also
select the Comfort drive program when driv-
ing fast on straight roads, e.g. on straight
stretches of highway. X
Press DYNAMIC SELECT button C
( Y
page 155) as many times as necessary
until the Comfort drive program is selec-
ted.
Selecting Sport mode
The firmer setting of the suspension tuning in
the Sport drive program ensures even better
contact with the road. Select this drive pro-
gram when employing a sporty driving style,
e.g. on winding country roads. X
Press DYNAMIC SELECT button C
( Y
page 155) as many times as necessary
until the Sport drive program is selected.
PARKTRONIC
Important safety notes
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It monitors the area
around your vehicle using six sensors in the
front bumper and six sensors in the rear
bumper. PARKTRONIC indicates visually and audibly the distance between your vehicle
and an object.
PARKTRONIC is only an aid. It is not a replace-
ment for your attention to your immediate
surroundings. You are always responsible for
safe maneuvering, parking and exiting a park-
ing space. When maneuvering, parking or
pulling out of a parking space, make sure that
there are no persons, animals or objects in
the area in which you are maneuvering.
! When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars.
PARKTRONIC does not detect such objects
when they are in the immediate vicinity of
the vehicle. You could damage the vehicle
or the objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck or a pneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you: R
switch on the ignition R
shift the transmission to position D , R or NR
release the electric parking brake
Range of the sensors
General notes
PARKTRONIC does not take objects into con-
sideration that are: R
below the detection range, e.g. people, ani-
mals or objects. R
above the detection range, e.g. overhang-
ing loads, truck overhangs or loading
ramps.192
Driving systems
Driving and parking

Problems with PARKTRONIC Problem
Possible causes/consequences and P Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is then
deactivated and the
indicator lamp on the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off. X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop.
Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is then
deactivated. The PARKTRONIC sensors are dirty or there is interference. X
Clean the PARKTRONIC sensors ( Y
page 305).X
Switch the ignition back on.
The problem may be caused by an external source of radio or
ultrasound waves. X
See if PARKTRONIC functions in a different location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle. A parking symbol
indicates a suitable parking space. Active
steering intervention and brake application
can assist you during parking and when exit-
ing a parking space. You may also use
PARKTRONIC ( Y
page 192).
Important safety notes
Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. Make sure that
no persons, animals or objects are in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable. G WARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park-
ing Assist parking procedure.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at a
sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example: R
Where parking or stopping is prohibited R
In front of driveways or entrances and exits R
On unsuitable surfaces Driving systems 195
Driving and parking Z

Active Parking Assist is switched on automat-
ically when driving forwards. The system is
operational at speeds of up to approximately
22 mph (35 km/h). While in operation, the
system independently locates and measures
parking spaces on both sides of the vehicle.
Active Parking Assist will only detect parking
spaces: R
that are parallel or at right-angles to the
direction of travel R
that are parallel to the direction of travel
and at least 59 in (1.5 m) wideR
that are parallel to the direction of travel
and at least 39.5 in (1.0 m) lo nger than your
vehicle R
that are at right angles to the direction of
travel and at least 39.5 in (1.0 m) wide r
than your vehicle
i Note that Active Parking Assist cannot
measure the length of a parking space if it
is at right angles to the direction of travel.
You will need to judge whether your vehicle
will fit into the parking space.
When driving at speeds below 19 mph
(30 km/h), you will see parking symbol D as
a status indicator in the instrument cluster.
When a parking space has been detected, an
arrow towards the right or the left also
appears. By default, Active Parking Assist
onl y d isplays parking spaces on the front-
p assenger side. Parking spaces on the driv-
er's side are displayed as soon as the turn
signal on the driver's side is activated. When
parking on the driver's side, this must remain
activated until you confirm the use of Active
Parking Assist by pressing the v button on
the multifunction steering wheel. The system
automatically determines whether the park-
ing space is parallel or at right-angles to the
direction of travel.
A parking space is displayed while you are
driving past it, and until you are approx-
imately 50 ft (15 m) away from it. Parking
G WARNING
If you leave the vehicle when it is only being
braked by Active Parking Assist it could roll
away if: R
there is a malfunction in the system or in
the voltage supply. R
the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with. R
the battery is disconnected. R
the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
i When PARKTRONIC detects obstacles,
Active Parking Assist brakes automatically
during the parking process. You are respon-
sible for braking in good time. X
Stop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster. X
Shift the transmission to position R .
The Start Park Assist? Yes: OK No:
8 message appears in the multifunction
display. X
To cancel the procedure: press the 8
button on the multifunction steering wheel
or pull away.
or X
To park using Active Parking Assist:
press the v button on the multifunction
steering wheel.
The Park Assist Active Accelerate
and Brake Observe Surroundings mes-
sage appears in the multifunction display. X
Let go of the multifunction steering wheel. X
Back up the vehicle, being ready to brake at
all times. When backing up, drive at a speed
below approximately 6 mph (10 km/h). Driving system s 197
Dr ivi ng an d parking Z

Otherwise Active Parking Assist will be can-
celed.
Active Parking Assist brakes the vehicle to
a standstill when the vehicle approaches
the rear border of the parking space.
Maneuvering may be required in tight park-
ing spaces.
The Park Assist Active Select D
Observe Surroundings message appears in
the multifunction display. X
Shift the transmission to position D while
the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
The Park Assist Active Accelerate
and Brake Observe Surroundings mes-
sage appears in the multifunction display.
i You will achieve the best results by wait-
ing for the steering procedure to complete
before pulling away. X
Drive forwards and be ready to brake at all
times.
Active Parking Assist brakes the vehicle to
a standstill when the vehicle approaches
the front border of the parking space.
Maneuvering may be required in tight park-
ing spaces.
The Park Assist Active Select R
Observe Surroundings message appears in
the multifunction display.
As soon as the parking procedure is com-
plete, the Park
Assist Switched Off mes-
sage appears and a warning tone sounds. The
vehicle is now parked.
The vehicle is kept stationary without the
driver having to depress the brake pedal. The
braking effect is canceled when you depress
the accelerator pedal.
Active Parking Assist no longer supports you
with steering interventions and brake appli-
cations. When Active Parking Assist is fin-
ished, you must steer and brake again your-
self. PARKTRONIC is still available. Parking tips: R
The way your vehicle is positioned in the
parking space after parking is dependent
on various factors. These include the posi-
tion and shape of the vehicles parked in
front and behind it and the conditions of the
location. It may be the case that Active
Parking Assist guides you too far into a
parking space, or not far enough into it. In
some cases, it may also lead you across or
onto the curb. If necessary, you should can-
cel the parking procedure with Active Park-
ing Assist. R
You can also select preselect transmission
position D . The vehicle redirects and does
not drive as far into the parking space.
Should the transmission change take place
too early, the parking procedure will be
canceled. A sensible parking position can
no longer be achieved from this position.
Exiting a parking space In order that Active Parking Assist can sup-
port you when you exit the parking space: R
you need to have parked using Active Park-
ing Assist. R
the border of the parking space must be
high enough at the front and the rear. A
curb is too small, for example. R
the border of the parking space must not be
too wide, as the position of the vehicle must
not exceed an angle of 45° to the starting
position as it is maneuvering into the park-
ing space. R
a maneuvering distance of at least 3.3 ft
(1.0 m) must be available.
Active Parking Assist can only assist you with
exiting a parking space if you have parked the
vehicle parallel to the direction of travel using
Active Parking Assist.
i If PARKTRONIC detects obstacles, Active
Parking Assist brakes automatically whilst
the vehicle exits the parking space. You are
responsible for braking in good time.198
Driving systems
Driving and parking

X
Start the engine. X
Release the electric parking brake. X
Switch on the turn signal in the direction
you will drive out of the parking space. X
Shift the transmission to position D or R .
The Start Park Assist? Yes: OK No:
message appears in the multifunction dis-
play 8 .X
To cancel the procedure: press the 8
button on the multifunction steering wheel
or pull away.
or X
To exit a parking space using Active
Parking Assist: press the v button on
the multifunction steering wheel.
The Park Assist Active Accelerate
and Brake Observe Surroundings mes-
sage appears in the multifunction display. X
Let go of the multifunction steering wheel. X
Pull away, being ready to brake at all times.
Do not exceed a maximum speed of
approximately 6 mph (10 km/h) when exit-
ing a parking space. Otherwise Active Park-
ing Assist will be canceled. X
Depending on the message or as required,
shift the transmission to position D or R .
Active Parking Assist immediately steers in
the other direction. The Park Assist
Active Accelerate and Brake
Observe Surroundings message appears
in the multifunction display.
i You will achieve the best results by wait-
ing for the steering procedure to complete
before pulling away.
If you back up after activation, the steering
wheel is moved to the straight-ahead posi-
tion. X
Drive forwards and back up as prompted by
the PARKTRONIC warning displays, several
times if necessary.
Once you have exited the parking space com-
pletely, the steering wheel is moved to the
straight-ahead position. You hear a tone and
the Park Assist Finished message
appears in the multifunction display. You will then have to steer and merge into traffic on
your own. PARKTRONIC is still available. You
can take over the steering, before the vehicle
has exited the parking space completely. This
is useful, for example when you recognize
that it is already possible to pull out of the
parking space.
Canceling Active Parking Assist X
Stop the movement of the multifunction
steering wheel or steer yourself.
Active Parking Assist will be canceled at
once. The Park Assist Canceled mes-
sage appears in the multifunction display.
or X
Press the PARKTRONIC button
( Y
page 194).
PARKTRONIC is switched off and Active
Parking Assist is immediately canceled.
The Park Assist Canceled message
appears in the multifunction display.
Active Parking Assist is canceled automati-
cally if: R
the electric parking brake is engaged R
transmission position P is selectedR
parking using Active Parking Assist is no
longer possible R
you are driving faster than 6 mph (10 km/h) R
a wheel spins, ESP ®
intervenes or fails. The