2015 MERCEDES-BENZ A-CLASS HATCHBACK stop start

Activating the HOLD function
X
Make sure that the activation conditions
are met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until :appears in the multifunction dis-
play.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automati-
cally if:
R you accelerate. On vehicles with automatic
transmission: only when the transmission
is in position Dor R.
R the transmission is in position Pon vehicles
with automatic transmission.
R you depress the brake pedal again with a
certain amount of pressure until :disap-
pears from the multifunction display.
R you activate DISTRONIC PLUS.
R you secure the vehicle using the electric
parking brake.
i After a short period, the vehicle is secured
by the electric parking brake, thus relieving the service brake.
Vehicles with automatic transmission When the HOLD function is activated, the
transmission is shifted automatically to posi-
tion Pif:
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, the vehicle is stationary and:
R a system fault occurs
R the power supply is insufficient
Vehicles with manual transmission The electric parking brake secures the vehicle
automatically if the HOLD function is activa-
ted and:
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
R a system fault occurs
R the power supply is insufficient
The Brake immediately Brake immediately message may also
appear in the multifunction display.
X Immediately depress the brake pedal firmly
until the warning message in the multifunc- tion display goes out.
The HOLD function is deactivated.
A horn will sound at regular intervals if you
turn off the engine, take off your seat belt or
open the driver's door when the HOLD func-
tion is activated. The horn alerts you to the
fact that the HOLD function is still activated.
If you attempt to lock the vehicle, the tone
becomes louder. The vehicle cannot be
locked until you have deactivated the HOLD
function.
i Once you have switched off the engine,
you cannot restart it until you have deacti-
vated the HOLD function. Driving systems
205Driving and parking Z

Example: parking symbol
:
Detected parking space on the left
; Parking symbol
= Detected parking space on the right
Active Parking Assist is activated automati-
cally when driving forwards. The system is
operational at speeds of up to approximately
35 km/h. While in operation, the system inde- pendently locates and measures parking
spaces on both sides of the vehicle.
Active Parking Assist will only detect parkingspaces:
R parallel or at right angles to the direction of
travel
R that are parallel to the direction of travel
and are at least 1.5 m wide
R that are parallel to the direction of travel
and at least 1.0 mlonger than your vehicle
R that are at right angles to the direction of
travel and at least 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 in the parking space.
When driving at speeds below 30 km/h, you
will see parking symbol ;as a status indi-
cator in the instrument cluster. When a park-
ing space has been detected, an arrow
towards the right or the left also appears.
Active Parking Assist only displays parking
spaces on the front-passenger side as stand- ard. Parking spaces on the driver'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 untilyou confirm the use of Active Parking Assist by pressing the
abutton on the multi-
function steering wheel. The system auto-
matically determines whether the parking
space is parallel or at right angles to the direc-
tion of travel.
A parking space is displayed while you are
driving past it, and until you are approx-
imately 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 are tam-
pered with.
R the battery is disconnected.
R the vehicle is accelerated, e.g. by a vehicle
occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
i Vehicles with automatic transmis-
sion:
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 symbol
shows the desired parking space in the
instrument cluster.
X Vehicles with manual transmission:
shift to reverse gear.
Vehicles with automatic transmission:
shift into position R.
The Start Park Assist? Start Park Assist? Yes: OK
Yes: OKNo:
No:
% message appears in the multifunction
display. 214
Driving systemsDriving and parking

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 kerb. If necessary, you should can-
cel the parking procedure with Active Park- ing Assist.
R You can also preselect transmission posi-
tion 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 cancel- led. A sensible parking position can no lon-
ger be achieved from this position.
Exiting a parking space In order that Active Parking Assist can sup-
port you when exiting 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
kerb stone 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 manoeuvred into the park-
ing space.
R a manoeuvring distance of at least 1.0 m
must be available.
Active Parking Assist can only assist you with exiting a parking space if you have parked thevehicle parallel to the direction of travel using
Active Parking Assist.
i Vehicles with automatic transmission:
If PARKTRONIC detects obstacles, Active
Parking Assist brakes automatically whilst
the vehicle exits the parking space. You are
responsible for braking in good time.
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
Vehicles with automatic transmission:
shift the transmission to position Dor R.
Vehicles with manual transmission:
shift to forward or reverse gear.
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 Release the multifunction steering wheel.
X Pull away, being ready to brake at all times.
Do not exceed a maximum speed of
approximately 10 km/h when exiting a
parking space. Otherwise, Active Parking
Assist will be cancelled.
X Vehicles with manual transmission:
stop, at the latest when PARKTRONIC
sounds the continuous warning tone.
X Vehicles with automatic transmission:
depending on the message or as required,
shift the transmission to position Dor R.
Vehicles with manual transmission:
depending on the message or as required,
engage forward or reverse gear.
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 reverse after activation, the steering
wheel is moved to the straight-ahead posi- tion. 216
Driving systemsDriving and parking

Multifunction display
:
Permanent display: outside temperature
or speed (Y page 251)
; Time
= Text field
? Menu bar
A Drive program (Y page 170)
B Transmission position (Y page 172)
Vehicles with manual transmission: the indi-
cators in the lower part of the multifunction
display differ from those shown here.
For Mercedes-AMG vehicles, the indicators in
the lower and upper part of the multifunction display differ from those shown here.
X To display menu bar ?: press the=
or ; button on the steering wheel.
If you do not press the buttons any longer, menu bar ?is faded out 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
Online (see the separate operating instruc-
tions).
The following messages may appear in
the multifunction display:
R ZGearshift recommendation for manual
transmission (Y page 168) or for automatic transmission (shifting manually)
(Y
page 177)
R j Active Parking Assist (Y page 212)
R ¯ Cruise control (Y page 191)
R È SPEEDTRONIC (Y page 194)
R _ Adaptive Highbeam Assist
(Y page 123)
R è ECO start/stop function
(Y page 162)
R ë HOLD function (Y page 204)
R 120 km/h!
120 km/h! Maximum permissible speed
exceeded (only for certain countries) Menus and submenus
Menu overview
Using the =or; button on the steer-
ing wheel, open the menu bar.
Operating the on-board computer
(Y page 239).
Depending on the equipment fitted in the
vehicle, you can call up the following menus:
R Trip Trip menu (Y page 242)
R Navi
Navi menu (navigation instructions)
(Y page 243)
R Audio
Audio menu (Y page 245)
R Tel
Tel menu (telephone) (Y page 246)
R Assist.
Assist. menu (assistance) (Y page 247)
R Serv.
Serv. menu (Y page 250)
R Settings
Settings menu (settings) (Y page 250)
R AMG
AMG menu (Mercedes-AMG vehicles)
(Y page 254)
The displays for the Audio
Audio,Navi
NaviandTel
Tel
menus may differ slightly to those in your
vehicle.
The examples given in this Owner's Manual
apply to vehicles equipped with COMAND
Online. Menus and submenus
241On-board computer/Displays Z

Accepting a call
If someone calls you when you are in the
Tel
Tel
menu, a display message appears in the mul- tifunction display.
You can accept a call at any time, even if you
are not in the Tel Telmenu.
X Press the 6button on the steering
wheel to accept an incoming call.
Rejecting or ending a call You can reject or end a call any time even if
you are not in the
Tel
Tel menu.
X Press the ~button on the steering
wheel to reject or end an incoming call.
Selecting an entry in the phone book X
Press the =or; button on the steer-
ing wheel to select the Tel
Tel menu.
X Press the 9,:ora button to
switch to the phone book.
X Authorise access to the phone book on the
phone.
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 dialling.
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-
ling.
or
X If you do not want to make the call: press
the ~ or% button.
Redialling The on-board computer saves the last names
or numbers dialled 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-
ling.
or X If you do not want to make the call: press
the ~ or% button. Assistance menu
Introduction Depending on the equipment fitted in the
vehicle, you have the following options in the
Assist. Assist. menu:
R Showing the assistance graphic
(Y page 248)
R Activating/deactivating the Traffic Sign
Assist message function (Y page 248) Menus and sub
menus
247On-board computer/Displays Z

You can start the RACETIMER when the
engine is running or if the key is in position 2
in the ignition lock.
X Press the =or; button on the steer-
ing wheel to select the AMG
AMG menu.
X Press the 9button repeatedly until the
RACETIMER appears.
X To start: press the abutton to start the
RACETIMER.
Displaying the intermediate time X
Press the =or; button to select
Interm. Time
Interm. Time .
X Press ato confirm.
The intermediate time is shown for five sec-
onds.
Starting a new lap :
RACETIMER
; Fastest lap time (best lap)
= Lap
X Press ato confirm New Lap
New Lap.
i A maximum of 16 laps may be stored. The
16th lap can only be completed with Fin‐
Fin‐
ish Lap
ish Lap. Stopping the RACETIMER X
Press the %button on the steering
wheel.
X Confirm Yes
Yeswith a.
The RACETIMER interrupts timing if you stop
the vehicle and turn the key to position 1in
the ignition lock. If you turn the key to position
3 and then press ato confirm Start Start, tim-
ing is continued.
Resetting the current lap
X Stop the RACETIMER.
X Press the =or; button 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. Menus and submenus
255On-board computer/Displays Z

Display messages
Possible causes/consequences and
M
MSolutions J
Check brake fluid Check brake fluid
level level There is insufficient brake fluid in the brake fluid reservoir.
In addition, the red Jwarning lamp lights up in the instrument
cluster and a warning tone sounds.
G WARNING
Braking efficiency 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 Safeguard the vehicle against rolling away (Y page 184).
X Consult a qualified specialist workshop.
X Do not top up the brake fluid. This does not correct the fault. #
Check brake pad Check brake pad
wear wear The brake pads/linings have reached their wear limit.
X Consult a qualified specialist workshop. G
Inoperative
Inoperative One or more main features of the Mercedes-Benz Contact system
are malfunctioning.
X Consult a qualified specialist workshop. Collision Preven‐
Collision Preven‐
tion Assist Plus tion Assist Plus
currently unavail‐ currently unavail‐
able See Owner's able See Owner's
Manual Manual COLLISION PREVENTION ASSIST PLUS is temporarily inoperative.
Possible causes:
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.
Once the causes listed above no longer apply, the display message goes out.
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 Safeguard the vehicle against rolling away (Y page 184).
X Restart the engine. 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 Consult a qualified specialist workshop immediately. Display
messages
265On-board computer/Displays Z

Display messages
Possible causes/consequences and
M
MSolutions PRE-SAFE inopera‐
PRE-SAFE inopera‐
tive See Owner's tive See Owner's
Manual Manual
Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. airbags, remain available.
X Consult a qualified specialist workshop immediately. Radar sensors
Radar sensors
dirty See Owner's dirty See Owner's
Manual 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:
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.
Once the causes listed above no longer apply, the display message
goes out. All driving systems and driving safety systems are opera- tional 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 Safeguard the vehicle against rolling away (Y page 184).
X Switch off the engine.
X Clean the sensors (Y page 332) in the following locations:
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. ü If this symbol appears in the multifunction display, a seat belt
tongue has been inserted into a rear seat belt buckle.
Further information on the status indicator for the rear seat belts
(Y page 46). 266
Display
messagesOn-board computer/Displays