engine Alfa Romeo Giulietta 2015 Owner's Guide

System intervention
A slight pulsing of the brake pedal and
noise indicates the intervention of the
ABS: this is completely normal when
the system intervenes.
35) 36) 37) 38) 39) 40) 41)
CBC (Cornering Brake
Control) SYSTEM
The system acts when braking on
corners, optimising the distribution of
brake pressure on the four wheels: the
system prevents the wheels on the
inside of the corner (less affected by the
weight of the car) from locking,
ensuring better stability and direction
for the car.
ASR (Anti-Slip
Regulation) SYSTEM
42) 43) 44)
This is an integral part of the ESC
system and automatically operates in
the event of one or both drive wheels
slipping, loss of grip on wet roads
(aquaplaning) and acceleration
on slippery, snowy or icy roads, etc.
Depending on the slipping conditions,
two different control systems are
activated:❒if the slipping involves both drive
wheels, the ASR system intervenes,
reducing the power transmitted by
the engine;
❒if the slipping only involves one of the
drive wheels, it also intervenes
automatically, braking the wheel that
is slipping.
System intervention
This is indicated by the flashing of the
warning light on the instrument
panel, to inform the driver that the car is
in critical stability and grip conditions.
HILL HOLDER SYSTEM
This is an integral part of the ESC
system and facilitates starting on
slopes, activating automatically in the
following cases:
❒uphill: car stationary on a road with a
gradient higher than 5%, engine
running, brake pressed and gearbox
in neutral or gear (other than reverse)
engaged;
❒downhill: car stationary on a road
with a gradient higher than 5%,
engine running, brake pressed and
reverse gear engaged.When setting off, the ESC system
control unit maintains the braking
pressure on the wheels until the engine
torque necessary for starting is
reached, or in any case for a maximum
of 2 seconds, allowing your right foot
to be moved easily from the brake
pedal to the accelerator.
When two seconds have elapsed,
without starting, the system is
automatically deactivated, gradually
releasing the braking pressure. During
this release stage it is possible to hear a
typical mechanical brake release noise,
indicating the imminent movement of
the car.
IMPORTANT The Hill Holder system is
not a parking brake; therefore, never
leave the car without having engaged
the handbrake, turned the engine
off and engaged first gear, so that it is
parked in safe conditions (for further
information read the "Parking"
paragraph in the "Starting and driving"
chapter).
63

IMPORTANT There may be situations
on small gradients (less than 8%),
with car laden, in which the Hill Holder
system may not activate, causing a
slight reversing motion and increasing
the risk of collision with another vehicle
or object. The driver is, in any case,
responsible for safe driving.
HBA (Hydraulic Brake
Assist) SYSTEM
45) 46) 47)
The HBA system is designed to
improve the car's braking capacity
during emergency braking. The system
detects emergency braking by
monitoring the speed and force with
which the brake pedal is pressed, and
consequently applies the optimal brake
pressure. This can reduce the braking
distance: the HBA system therefore
completes the ABS.
Maximum assistance from the HBA
system is obtained by pressing the
brake pedal very quickly. In addition,
the brake pedal should be pressed
continuously during braking, avoiding
intermittent presses, to get the most
out of the system.
Do not reduce pressure on the brake
pedal until braking is not necessary
anymore.The HBA system is deactivated when
the brake pedal is released.
MSR (Motor
Schleppmoment
Regelung) SYSTEM
This system is an integral part of the
ABS, that intervenes, if there is a
sudden downshifting, restoring torque
to the engine, thereby preventing
excessive drive at the drive wheels
which, especially in poor grip
conditions, could lead to a loss in
stability of the car.
DST SYSTEM (Dynamic
Steering Torque)
This function integrates Dual Pinion
active steering into the operation of
ESC. For particular manoeuvres, the
ESC system controls the steering
to actuate a steering torque and assist
the driver in the best possible way.
The system operates the brakes and
steering in a coordinated manner to
increase the suspension and safety
level of the car as a whole. The steering
provides additional torque on the
steering wheel.“ELECTRONIC Q2”
SYSTEM (“E-Q2”)
The "Electronic Q2" system intervenes
during acceleration on corners, braking
the inner drive wheel and thus
increasing the traction of the outer
wheel (which bears more of the car’s
weight): the torque is thus distributed
optimally between the drive wheels
in accordance with the driving
conditions and road surface, permitting
particularly effective, sporty driving.
"PRE-FILL" SYSTEM
(RAB - Ready Alert
Brake)
(only with 'Dynamic" mode activated)
This function activates automatically
if the accelerator pedal is released
rapidly, reducing the brake pad travel
(both at front and back), with the aim of
preparing the braking system and
enhancing its responsiveness, thus
reducing the stopping distance in the
event of subsequent braking.
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GETTING TO KNOW YOUR CAR

47) The capability of the HBA system
must never be tested irresponsibly
and dangerously, in such a way
as to compromise the safety of
the driver, the other occupants of
the car or any other road user.“Alfa DNA” SYSTEM
(Car dynamic
control system)
This device allows, using lever A fig. 75
(on the central tunnel), three car
response modes to be selected
according to driving style and road
conditions:
❒d=Dynamic(sports driving mode);
❒n=Natural(mode for driving in
normal conditions);
❒a=All Weather(mode for driving in
poor grip conditions, such as rain
and snow).
The device also acts on the dynamic
car control systems (engine, steering,
VDC system, instrument panel).When lever A fig. 75 is moved to “d”
position, the activation of “Dynamic”
mode is confirmed by a temporary
variation in the brightness (flashing) of
the instrument panel.
DRIVING MODES
Lever A is monostable type. In other
words, it always remains in a central
position.
The selected driving mode is indicated
by the corresponding LED coming on in
the panel and by an indication on the
reconfigurable multifunction display, as
illustrated below:
❒Dynamic modefig. 76 (display
image available for versions/markets,
where provided)
❒All Weather Modefig. 77
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76A0K0591
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GETTING TO KNOW YOUR CAR

“Natural” mode
When “Natural” mode is selected, no
messages or symbols are shown on the
display.
ESC and ASR systems:intervention
thresholds aimed at comfort and safety
in normal grip and driving conditions.
"ELECTRONIC Q2" system:the
system is calibrated to ensure the best
driving comfort.
Steering wheel tuning:functions
aimed at comfort in normal conditions
of use.
DST:braking standard control
coordinated with ABS/ESC. Standard
control over lateral acceleration.
Oversteer compensation: a slight pulse
on the steering wheel encourages the
driver to carry out the most appropriate
manoeuvre.
Engine:standard response.ENGAGEMENT/
DISENGAGEMENT OF
“Dynamic” MODE
Engagement
Move lever A fig. 75 upwards (next to
the letter “d”) and hold in this position
for 0.5 seconds until the corresponding
LED lights up or the word “Dynamic”
appears on the display (see fig. 78).Upon release, lever A returns to the
central position.
ESC and ASR:intervention thresholds
that allow more enjoyable, sportier
driving whilst guaranteeing stability of
the vehicle.
"ELECTRONIC Q2" system:the
system is calibrated to increase traction
whilst accelerating on bends,
improving the vehicle agility
Steering wheel tuning:uses the
sports mode function.
DST:braking standard control
coordinated with ABS/ESC. Standard
control over lateral acceleration.
Oversteering compensation depending
on the ESC/ASR intervention
thresholds: a slight movement on the
steering wheel encourages the driver to
carry out the most appropriate
manoeuvre.
Engine:prompter response +
Overboost to maximise torque (for
versions/markets, where provided).
RAB:by pre-positioning of the brake
pads (front and rear) following a rapid
release of the accelerator pedal to
reduce braking times, shorten stopping
distances and improve the brake pedal
feeling.
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78A0K1510
67
IMPORTANT For versions/markets,
where provided, switching to "Dynamic"
mode is automatically disabled in the
first kilometres in order to guarantee
correct settling of the mechanical
components. If an attempt to activate
the system is made before this limit, the
display will show a dedicated message
to remind the driver that this request
cannot be fulfilled.

The activation of the Dynamic mode is
also shown by the change in the
instrument panel lighting that, after
decreasing, reaches the highest
luminosity and then returns to the
previously set values.
Disengagement
To deactivate “Dynamic” mode and
return to “Natural”, repeat the same
movement of the lever within the same
times. In this case, the LED
corresponding to “Natural” mode will
light up and the words “Natural on” will
appear on the display (see fig. 79).ENGAGEMENT/
DISENGAGEMENT OF “All
Weather” MODE
Engagement
Move lever A fig. 75 downwards (to the
letter “a”) and hold in this position for
0.5 seconds until the corresponding
LED lights up or the word “All Weather”
appears on the display (see fig. 80).
ESC and ASR systems:intervention
thresholds aimed at guaranteeing
the maximum safety in low grip driving
conditions. It is recommended to
activate the "All Weather" mode when
fitting snow chains.
"ELECTRONIC Q2" system:the
system is deactivated.
Steering wheel tuning:maximum
comfort.DST:higher braking control
coordinated with ABS/ESC. Standard
control over lateral acceleration.
Oversteering compensation depending
on the ESC/ASR intervention
thresholds: a slight movement on the
steering wheel encourages the driver to
carry out the most appropriate
manoeuvre.
Engine:standard response.
Disengagement
To deactivate “All Weather” mode and
return to “Natural”, carry out the same
procedure described for “Dynamic”
mode, but move lever A fig. 75 to “a”.
IMPORTANT
❒It is not possible to switch directly
from “Dynamic” mode to “All
Weather” mode and vice versa. You
must always first go back to “Natural”
mode and then select the other
mode.
❒The driving mode engaged before the
engine stops is maintained when it is
next started.
❒In the event of system failure or a
fault with lever A, no driving modes
can be selected. The display will
show a warning message.
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GETTING TO KNOW YOUR CAR

START&STOP
SYSTEM
(for versions/markets, where provided)
IN BRIEF
The Start&Stop system automatically
stops the engine each time the car
is stationary and starts it again when
the driver wants to move off.
In this way, the efficiency of the car is
increased, by reducing consumption,
emissions of harmful gases and
noise pollution.
OPERATING MODES
Engine stopping mode
With the car stopped, the engine stops
with gearbox in neutral and clutch
pedal released.
NOTE The engine can only be stopped
automatically after exceeding about
10 km/h, to prevent the engine from
being repeatedly stopped when driving
at walking pace.
The
fig. 81 symbol appears on the
display when the engine stops.Restarting the engine
Press the clutch pedal to restart the
engine.
SYSTEM MANUAL
ACTIVATION/
DEACTIVATION
To activate/deactivate the system
manually, press the
button located
on the central tunnel fig. 82.Start&Stop system
activation
A message will be displayed when the
Start&Stop system is activated. In
this condition, the LED on the button
is off.
Turning the Start&Stop
off
❒Versions with multifunction display:a
message is displayed when the
Start&Stop system is deactivated.
❒Versions with reconfigurable
multifunction display:the
symbol
is displayed + a message when
the Start&Stop system is
deactivated.
The LED on the button
switches on
when the system is deactivated.
ENGINE STOPPING
FAILURE CONDITIONS
When the system is active, due to
comfort, emission control and safety
reasons, the engine does not stop
in some conditions, among which
10):
❒engine still cold;
❒especially cold outside temperature;
❒battery not sufficiently charged;
❒particulate filter regeneration (DPF) in
progress (diesel engines only);
81A0K0163
82A0K0613
69

❒driver's door not shut;
❒driver's seat belt not fastened;
❒reverse gear engaged (for example,
for parking manoeuvres);
❒for versions equipped with dual zone
automatic climate control (for
versions/markets, where provided), if
an adequate level of thermal comfort
has not been reached or with
MAX-DEF function activation;
❒during the first period of use, to
initialise the system.
ENGINE RESTARTING
CONDITIONS
Due to comfort, emission control and
safety reasons, the engine can restart
automatically without any action by the
driver, under special conditions, such
as:
❒battery not sufficiently charged;
❒reduced braking system vacuum
(e.g. if the brake pedal is pressed
repeatedly);
❒car moving (e.g. when driving on
roads with a gradient);
❒engine stopping by Start&Stop
system for over 3 minutes;❒for versions equipped with dual zone
automatic climate control system (for
versions/markets, where provided),
if an adequate level of thermal
comfort has not been reached or
MAX-DEF function activation.
With gear engaged, automatic engine
restarting is possible only by fully
depressing the clutch pedal. The driver
is informed by the displaying of a
message on the display and -
for versions/markets, where provided -
by the flashing of the symbol
.
Notes
If the clutch is not pressed, about 3
minutes after the engine stops, the
engine can be restarted only using the
ignition key.
In cases when the engine stops and
this is not desired, due for example to
the clutch pedal being released sharply
with a gear engaged, if the Start&Stop
system is activated, the engine can
be restarted by fully depressing the
clutch pedal or by placing the gear lever
in neutral.SAFETY FUNCTIONS
When the engine is stopped by the
Start&Stop system, if the driver releases
his/her seat belt and opens the driver's
or passenger's door, the engine can
be restarted only using the ignition key.
The driver is informed by a buzzer
and by the flashing of the symbol
on
the display; on some versions, a
message is displayed as well.
"ENERGY SAVING"
FUNCTION
(for versions/markets, where provided)
If, following automatic engine restarting,
the driver does not carry out any
action on the car for over 3 minutes,
the Start&Stop system stops the engine
once and for all, to prevent fuel
consumption. In these cases, the
engine can be restarted only using the
ignition key.
NOTE In any case, it is possible to keep
the engine running by deactivating the
Start&Stop system.
IRREGULAR OPERATION
In the event of malfunction, the
Start&Stop system is deactivated.
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GETTING TO KNOW YOUR CAR

The driver is informed of the fault by the
flashing
symbol (versions with
multifunction display) or
symbol
(versions with reconfigurable
multifunction display). For versions/
markets where provided, a message is
also displayed.
In this case, contact an Alfa Romeo
Dealership.
CAR INACTIVITY
In the event of car inactivity (or if the
battery is replaced), special attention
must be paid to the disconnection
of the battery power supply.
Proceed as follows: detach connector
A fig. 83 (by pressing button B) from
sensor C for monitoring the status
of the battery installed on the negative
battery pole D. This sensor should
never be disconnected from the pole
except if the battery is replaced.
48)
IMPORTANT After turning the ignition
key to STOP and having closed the
driver's side door, wait at least one
minute before disconnecting and then
reconnecting the battery electrical
supply.
JUMP STARTING
When jump starting, never connect the
negative lead (–) of the auxiliary battery
to the negative pole A fig. 84 of the
car battery, but rather to an
engine/gearbox earth point.
49)
IMPORTANT
10) If you wish to run the air
conditioning system, you may
deactivate the Start&Stop system
to allow continuous operation of
the air conditioning system.
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85A0K0614
71

WARNING
48) When replacing the battery,
always contact an Alfa Romeo
Dealership. The replacement
battery should be of the same
type (HEAVY DUTY) and should
have the same characteristics.
49) Before opening the bonnet,
make sure that the engine is off
and that the ignition key is in
the STOP position. Follow the
instructions on the dedicated
label on the front crossmember
(fig. 85). We recommend that you
remove the key from the ignition if
other people remain in the car.
The car should always be left after
the key has been removed or
turned to the STOP position.
During refuelling, make sure that
the engine is off (and that the
ignition key is in the STOP
position).
iTPMS (indirect Tyre
Pressure
Monitoring System)
(for versions/markets, where provided)
DESCRIPTION
The car can be equipped with the
iTPMS (indirect Tyre Pressure
Monitoring System) which monitors the
tyre inflation status thanks to wheel
speed sensors.
The system warns the driver if one or
more tyres are flat by the dedicated
warning light
continuously on and a
warning message on the display.
If one tyre only is flat, the system can
indicate its position: it is anyway
recommended to check the pressure
on all four tyres.
This indication is displayed also when
turning the engine off and on again until
the RESET procedure is carried out.
RESET PROCEDURE
The iTPMS system needs an initial
"self-learning" phase (with length
depending on the driving style and road
conditions: optimal conditions being
RESET procedure is carried out.❒whenever the tyre pressure is
modified;
❒when even only one tyre is changed;
❒when tyres are rotated/inverted;
❒when the space-saver wheel is fitted.
Before carrying out the RESET, inflate
the tyres to the rated pressure values
specified in the inflation pressure table
(see "Wheels" paragraph in the
"Technical specifications" section).
If the RESET is not carried out, in all
above cases, the warning lightmay
give false indications on one or more
tyres.
To carry out the RESET, with the car
stopped and the ignition key at
MAR-ON, press the button
fig. 86 on
the dashboard for 2 seconds; after
the RESET, the display shows a
dedicated message, indicating that the
"self-learning" has started.
86A0K060872
GETTING TO KNOW YOUR CAR
The Reset procedure must be carried
out:
which starts when driving
on



a


straight



road




at





80


km/h




for
at least 20 minutes)
the

OPERATING CONDITIONS
50) 51) 52) 53) 54) 55)
The system is active for speeds above
15 km/h.
In a few situations such as sporty
driving, particular conditions of the road
surface (e.g. icy, snowy, unsurfaced
roads) the signalling may be delayed
Under special conditions (e.g. car
loaded asymmetrically on one side,
towing a trailer, damaged or worn tyre,
fitting the space-saver wheel, use of the
"Fix&Go Automatic" kit, fitting snow
chains, fitting different tyres on the
axles) the system may give false
indications or be temporarily
deactivated.
If the system is temporarily deactivated
the
warning light flashes for about
75 seconds and then is continuously
on; at the same time, the display shows
a dedicated message.
This indication is displayed also after
the engine has been switched off and
then on again if the correct operating
conditions are not restored.IMPORTANT
INFORMATION
WARNING
50) If the system signals a pressure
decrease on a specific tyre, it is
recommended to check the
pressure on all four tyres.
51) iTPMS does not relieve the
driver from the obligation to check
the tyre pressure every month; it
is not even to be considered a
replacing system for maintenance
or a safety system.
52) Tyre pressure must be checked
with tyres cold. Should it become
necessary for whatever reason
to check pressure with warm
tyres, do not reduce pressure
even though it is higher than the
prescribed value, but repeat the
check when tyres are cold.
53) The iTPMS cannot indicate
sudden tyre pressure drops (for
example when a tyre bursts).
In this case, stop the car, braking
with caution and avoiding abrupt
steering.54) The system only warns that the
tyre pressure is low: it is not able
to inflate them.
55) An insufficient tyre inflation
increases fuel consumption,
reduces the tread duration and
may affect the capacity of driving
safely.
73
or partial in detecting the contemporary
deflation of more than one tyre.