2015 MERCEDES-BENZ CLA-Class stop start

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) wide
R that are parallel to the direction of travel
and at least 39.5 in (1.0 m) longer than your
vehicle
R that are at right angles to the direction of
travel and at least 39.5 in (1.0 m) wider
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 ;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
only displays parking spaces on the front-
passenger 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 abutton 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. Pa
rking 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? Start Park Assist? Yes: OK
Yes: OKNo:
No:
% message appears in the multifunction
display.
X To cancel the procedure: press the%
button on the multifunction steering wheel or pull away.
or
X To park using Active Parking Assist:
press the abutton on the multifunction
steering wheel.
The Park Assist Active Accelerate Park Assist Active Accelerate
and Brake
and Brake Observe Surroundings
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). 186
Driving systemsDriving an
d parking

X
Start the engine.
X Release the electric parking brake.
X Switch on the turn signal in the direction
you are pulling away.
X Shift the transmission to position Dor R.
The Start Park Assist? Yes: OK No:
Start Park Assist? Yes: OK No:
message appears in the multifunction dis-
play %.
X To cancel the procedure: press the%
button on the multifunction steering wheel or pull away.
or
X To exit a parking space using Active
Parking Assist: press theabutton on
the multifunction steering wheel.
The Park Assist Active Accelerate
Park Assist Active Accelerate
and
and Brake Brake Observe
Observe Surroundings
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 Dor R.
Active Parking Assist immediately steers in the other direction. The Park Assist
Park Assist
Active Accelerate and Brake
Active Accelerate and Brake
Observe Observe Surroundings
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 steeringwheel 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
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 Park Assist Canceled mes-
sage appears in the multifunction display.
or X Press the PARKTRONIC button
(Y page 183).
PARKTRONIC is switched off and Active
Parking Assist is immediately canceled.
The Park Assist Canceled 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 Pis selected
R 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
÷ warning lamp lights up in the instru-
ment cluster
A warning tone sounds. The parking symbol
disappears and the multifunction display
shows the Park Assist Canceled Park Assist Canceled mes-
sage.
When Active Parking Assist is canceled, you
must steer and brake again yourself.
If a system malfunction occurs, the vehicle is
braked to a standstill. To drive on, depress the accelerator again. 188
Driving systemsDriving and parking

The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
R if the length of the journey is less than
approximately 30 minutes
R if the road condition is poor, e.g. if the sur-
face is uneven or if there are potholes
R if there is a strong side wind
R if you have adopted a sporty driving style
with high cornering speeds or high rates of
acceleration
R if you are predominantly driving slower
than 37 mph (60 km/h) or faster than
125 mph (200 km/h)
R if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
ATTENTION ASSIST is reset when you con-
tinue your journey and starts assessing your
tiredness again if:
R you switch off the engine
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break
Displaying the attention level You can have current status information dis-
played in the assistance menu (Y
page 209)
of the on-board computer.
X Select the Assistance display for Attention
Assist using the on-board computer
(Y page 209). The following information is displayed:
R length of the journey since the last break.
R the attention level determined by ATTEN-
TION ASSIST ( Attention Level
Attention Level), dis-
played in a bar display in five levels from
high to low
R If ATTENTION ASSIST is unable to calculate
the attention level and cannot issue a warn-
ing, the System Suspended System Suspended message
appears. The bar display then changes the
display, e.g. if you are driving at a speed
below 37 mph (60 km/h) or above 124 mph
(200 km/h).
Activating ATTENTION ASSIST X
Activate ATTENTION ASSIST using the on-
board computer (Y page 210).
The system determines the attention level
of the driver depending on the setting
selected:
Selection Standard Standard: the sensitivity with
which the system determines the attention
level is set to normal.
Selection Sensitive Sensitive: the sensitivity is set
higher. The attention level detected by Atten- tion Assist is adapted accordingly and the
driver is warned earlier.
When ATTENTION ASSIST is deactivated, the é symbol appears in the multifunction
display in the assistance graphic display.
When ATTENTION ASSIST has been deactiva-
ted, it is automatically reactivated after the
engine has been stopped. The sensitivity
selected corresponds to the last selection
activated (standard/sensitive).
Warning in the multifunction display If fatigue or increasing lapses in concentra-
tion are detected, a warning appears in the
multifunction display:
ATTENTION ASSIST ATTENTION ASSIST
Take a Break! Take a Break!.
In addition to the message shown in the mul-
tifunction display, you will then hear a warn-
ing tone. Driving systems
193Driving and parking Z

Multifunction display
:
Permanent display: outside temperature
or speed (Y page 212)
; Time
= Text field
? Menu bar
A Drive program (Y page 149)
B Transmission position (Y page 149)
In AMG vehicles, the indicators in the lower
and upper part of the multifunction display
differ from the display shown here.
X To display menu bar ?: press the=
or ; button on the steering wheel.
Menu bar ?disappears after a few sec-
onds.
Text field =shows the selected menu or
submenu as well as display messages.
i Set the time using Audio 20 or COMAND
(see the separate operating instructions).
The following messages may appear in the
multifunction display:
Z Gearshift recommendation when
shifting manually (Y page 155)
XjY Active Parking Assist (Y page 184)
CRUISE
CRUISE Cruise control (Y
page 169) è
ECO start/stop function
(Ypage 145)
ë HOLD function (Y page 178) Menus and submenus
Menu overview
Press the =or; button on the steer-
ing wheel to call up the menu bar and select a
menu.
Operating the on-board computer
(Y page 201).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R Trip Trip menu (Y page 203)
R Navi Navi menu (navigation instructions)
(Y page 205)
R Audio
Audio menu (Y page 207)
R Tel
Tel menu (telephone) (Y page 208)
R DriveAssist
DriveAssist menu (assistance)
(Y page 209)
R Serv.
Serv. menu (Y page 211)
R Sett.
Sett. menu (settings) (Y page 211)
R AMG
AMG menu in AMG vehicles (Y page 214)
The Audio
Audio, Navi
NaviandTel
Tel menus differ slightly
in vehicles with Audio 20 and in vehicles with COMAND. The examples given in this Opera-
tor's Manual apply to vehicles equipped with
COMAND. Trip menu
Standard display X
Press and hold the %button on the
steering wheel until the Trip Tripmenu with Menus and submenus
203On-board computer and displays Z

X
Press the 9or: button to select the
desired name.
or X To begin rapid scrolling: press and hold
the 9 or: button for longer than
one second.
Rapid scrolling stops when you release the button or reach the end of the list.
X If only one telephone number is stored
for a name: press the6ora button
to start dialing.
or X If there is more than one number for a
particular name: press the6ora
button to display the numbers.
X Press the 9or: button to select the
number you want to dial.
X Press the 6ora button to start dial-
ing.
or
X If you do not want to make the call: press
the ~ or% button.
Redialing The on-board computer saves the last names
or numbers dialed in the redial memory.
X Press the =or; button on the steer-
ing wheel to select the Tel Telmenu.
X Press the 6button to switch to the
redial memory.
X Press the 9or: button to select the
desired name or number.
X Press the 6ora button to start dial-
ing.
or X If you do not want to make the call: press
the ~ or% button. Assistance menu
Introduction Depending on the equipment installed in the
vehicle, you have the following options in the
DriveAssist
DriveAssist menu:
R Displaying the assistance graphic
(Y page 209)
R Activating/deactivating ESP ®
(except AMG
vehicles) (Y page 210)
R Activating/deactivating COLLISION PRE-
VENTION ASSIST PLUS (Y page 210)
R Activating/deactivating ATTENTION
ASSIST (Y page 210)
R Activating/deactivating Blind Spot Assist
(Y page 211)
R Activating/deactivating Lane Keeping
Assist (Y page 211)
Displaying the assistance graphic X
Press the =or; button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press 9or: to select Assist.
Assist.
Graphic
Graphic.
X Press the abutton.
The multifunction display shows the
DISTRONIC PLUS distance display in the
assistance graphic.
The assistance graphic displays the status
of and information from the following driv-
ing systems or driving safety systems: Menus and submenus
209On-board computer and displays Z

X
Press =or; to select Interm.
Interm.
Time
Time.
X Press ato confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap :
RACETIMER
; Fastest lap time (best lap)
= Lap
X Press ato confirm New Lap
New Lap.
i It is possible to store a maximum of six-
teen laps. The 16th lap can only be com-
pleted with Finish Lap
Finish Lap.
Stopping the RACETIMER X
Press the %button on the steering
wheel.
X Confirm Yes
Yes with a.
The RACETIMER interrupts timing if you stop
the vehicle and turn the SmartKey to position 1 in the ignition lock. If you turn the key to
position 3and then press ato confirm
Start
Start, timing is continued.
Resetting the current lap
X Stop the RACETIMER.
X Press =or; to select Reset Lap Reset Lap.
X Press ato reset the lap time to "0". Deleting all laps
If you switch off the engine, the RACETIMER is
reset to "0" after 30 seconds. All laps are
deleted.
You cannot delete individual stored laps. If
you have stopped 16 laps, the current lap
does not have to be reset.
X Reset the current lap.
X Press ato confirm Reset
Reset.
Reset Race-Timer? Reset Race-Timer? appears in the multi-
function display.
X Press the :button to select Yes
Yesand
press the abutton to confirm.
All laps are deleted.
Overall statistics :
RACETIMER overall evaluation
; Total time driven
= Average speed
? Distance covered
A Maximum speed
This function is shown if you have stored at
least one lap and stopped the RACETIMER.
X Press =or; on the steering wheel
to select the AMG AMGmenu.
X Press the 9button repeatedly until the
overall evaluation is shown. Menus and submenus
215On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions $(USA
only)J
(Canada
only)
Check Brake Fluid Check Brake Fluid
Level Level There is not enough brake fluid in the brake fluid reservoir.
A warning tone sounds. The
$(USA only)/ J(Canada only)
warning lamps in the instrument cluster may also light up.
G WARNING
The braking effect may be impaired.
There is a risk of an accident. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 160).
X Consult a qualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction. #
Check Brake Pad Check Brake Pad
Wear Wear The brake pads/linings have reached their wear limit.
X Visit a qualified specialist workshop. G
Inoperative
Inoperative One or more main features of the mbrace system are malfunc-
tioning.
X Have the mbrace system checked immediately at a qualified
specialist workshop. Collision Preven‐ Collision Preven‐
tion Assist Plus tion Assist Plus
Currently Unavail‐ Currently Unavail‐
able See Opera‐ able See Opera‐
tor's Manual tor's Manual COLLISION PREVENTION ASSIST PLUS is temporarily not opera-
tional.
Possible causes are:
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
R AMG vehicles: ESP ®
is deactivated.
When the causes stated above no longer apply, the display mes-
sage disappears.
COLLISION PREVENTION ASSIST PLUS is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 160).
X Restart the engine.
X AMG vehicles: reactivate ESP ®
(Y page 68). 224
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Collision Preven‐
Collision Preven‐
tion Assist Plus tion Assist Plus
Inoperative Inoperative COLLISION PREVENTION ASSIST PLUS is temporarily inoperative
due to a malfunction. Adaptive Brake Assist may also have failed.
X Visit a qualified specialist workshop. Radar Sensors
Radar Sensors
Dirty See Opera‐ Dirty See Opera‐
tor's Manual tor's Manual At least one of the following driving systems or driving safety sys-
tems is temporarily restricted or inoperative:
R COLLISION PREVENTION ASSIST PLUS
R DISTRONIC PLUS
Possible causes are:
R the sensors in the radiator trim and/or in the bumpers are dirty.
R the function of the driving system and/or driving safety system
is impaired due to heavy rain or snow.
A warning tone also sounds.
When the causes stated above no longer apply, the display mes-
sage disappears. All driving systems/driving safety systems are
operative again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 160).
X Switch off the engine.
X Clean the sensors in the following locations (Y page 295):
R in the radiator trim
R in the front bumper
R in the rear bumper, particularly in the middle of the rear
bumper
X Restart the engine.
The display message disappears. 6
SRS Malfunction SRS Malfunction
Service Required Service Required The restraint system is faulty. The
6warning lamp also lights
up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
For further information about the restraint system, see
(Y page 40). Display
messages
225On-board computer and displays Z