torque Alfa Romeo Giulietta 2015 Owner's Manual

ESC SYSTEM
IN BRIEF
The ESC system improves the
directional control and stability of the
car in various driving conditions.
The ESC system corrects the car’s
understeer and oversteer, distributing
the brake force on the appropriate
wheels. The torque supplied by
the engine can also be reduced in
order to maintain control of the car.
30) 31) 32) 33) 34)
The ESC system uses sensors installed
on the car to determine the trajectory
that the driver intends to follow and
compares it with the car’s effective
trajectory. When the real trajectory
deviates from the desired trajectory, the
ESC system intervenes to counter the
car’s understeer or oversteer.
❒Oversteer: occurs when the car is
turning more than it should according
to the angle of the steering wheel.
❒Understeer: occurs when the car is
turning less than it should according
to the angle of the steering wheel.The ESC system also includes the
following systems:
❒EBD
❒ABS
❒CBC
❒ASR
❒HILL HOLDER
❒HBA
❒MSR
❒DST
❒“ELECTRONIC Q2” (“E-Q2”)
❒"PRE-FILL" (RAB - Ready Alert
Brake)
SYSTEM ACTIVATION
The ESC system switches on
automatically when the engine is
started and cannot be switched off.
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.EBD SYSTEM
The EBD system is an integral part of
the ESC system and intervenes during
braking, distributing the brake force
optimally between front and rear
wheels.
This guarantees greater braking stability
for the car, preventing sudden locking
of the rear wheels and the consequent
instability of the car.
ABS
This system, which is an integral part of
the braking system, prevents one or
more wheels from locking and slipping
in all road surface conditions,
irrespective of the intensity of the
braking action, ensuring that the car
can be controlled even during
emergency braking and optimising
stopping distances.
The system intervenes when braking
and the wheels are about to lock,
typically in emergency braking or
low-grip conditions, when locking may
be more frequent.
The system also improves control and
stability of the car when braking on a
surface where the grip of the left and
right wheels varies, or on corners.
62
GETTING TO KNOW YOUR CAR

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.
64
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.
77A0K0592
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.

ALFA TCT
(for versions/markets, where provided)
IN BRIEF
The car can be equipped with an
electronically managed Alfa TCT
6-speed automatic transmission
where gearshifting takes place
automatically according to the
instantaneous car usage parameters
(car speed, road gradient and
accelerator pedal position).
The new transmission is an absolute
innovation as it matches the
Start&Stop system with the most
recent alternative to traditional
automatic transmissions with built-in
torque converter.
Manual gearshifting can still occur
thanks to the sequential mode
position of the gear lever.
SELECTOR LEVER
The lever fig. 128 (left hand drive
versions) or fig. 129 (right hand drive
versions), can be placed in the following
positions:
❒P= Park
❒R= Reverse❒N= Neutral
❒D= Drive, (automatic forward speed)
❒+= Sequential upshifting
❒−= Sequential downshifting
If the lever is used in sequential mode,
moving the latter from D to the left,
the positions towards + or – are
unstable.
The lever has a button A, which must
be pressed to move the lever to P or R.DISPLAY
The display can show the following:
❒in automatic driving mode, the
gear selected (P, R, N, D). With
lever in position D (Drive), the display
will show D and the gear engaged
(e.g. D3 - see fig. 130).
❒in sequential driving mode, the
manual engagement of a (higher
or lower) gear, with the relevant
number fig. 131;
128 - Left hand drive versionsA0K0617
129 - Right hand drive versionsA0K0618
130A0K1540
131A0K1541
151

In both cases, if the described
conditions and times are not respected,
the ignition key will be automatically
locked.
To remove the key, turn it to MAR-ON
and then to STOP.
IMPORTANT If the battery is flat and the
ignition key is engaged, the latter is
locked in position. To remove the key
manually, pull up the handbrake and
insert the screwdriver supplied in the
hole under the dashboard fig. 133
pressing slightly, until the key is
removed.MOVING THE CAR
To move the car, from P press the
brake pedal and, using the button on
the gear lever, move the lever to the
desired position (D, R or "Sequential
mode").
The display will show the gear
engaged.
When the brake pedal is released, the
car starts moving forwards or
backwards, as soon as the manoeuvre
is activated ("creeping" effect). The
accelerator should not be pressed in
this case.
IMPORTANT The inconsistency
between the speed actually engaged
(shown on the display) and the position
of the gear lever is indicated by the
letter corresponding to the position of
the lever flashing on the trim (also
accompanied by an acoustic signal).
This condition should not be interpreted
as an operational fault, but simply as a
request by the system to repeat the
manoeuvre.
IMPORTANT With engine running and
car stationary, in "Sequential mode",
the request for engaging 2
ndgear is not
accepted by the system (whether the
brake pedal is pressed or not).If, with 1
stgear or reverse (R) engaged,
the following conditions occur:
❒road slope over 5%;
❒clutch overheated;
❒engine torque constant for a given
period (e.g. if the car hits the
pavement or is parked downhill/
uphill);
car movement is achieved by pressing
the accelerator pedal.
IMPORTANT With handbrake released
and brake pedal released, engine at
idling speed and gear lever in position
D, R or sequential, pay the utmost care
because the car can move even
without the operation of the accelerator
pedal. This condition can be used
with the car on a level surface during
tight parking manoeuvres using the
brake pedal only.
AUTOMATIC DRIVING
MODE
D can be selected from sequential
operation in any driving conditions.
In automatic driving mode, the best
ratio is selected by the electronic
transmission control unit depending on
speed, engine load (accelerator pedal
position) and gradient of the road.
133A0K0254
154
STARTING AND DRIVING

❒the brake pedal is pressed for longer
than 10 minutes;
❒the driver's door is opened with
creeping deactivated (for example
with handbrake engaged) without
pressing brake and/or accelerator
pedals;
❒a fault has been detected in the
transmission.
IMPORTANT Shifting to neutral (N) -
operated by the system - involves
a situation of inconsistency between
gear lever position and gear engaged.
The manoeuvre is accompanied by
an acoustic inconsistency signal. This
acoustic signal continues until the gear
lever is placed in P or N, to restore
the correct transmission operation
conditions.
PARKING THE CAR
To park safely, with the brake pedal
pressed, P must be engaged and, in
case of parking uphills/downhills, the
handbrake must be engaged.
Before releasing the brake pedal, wait
until P appears on the display.
IMPORTANT NEVER leave the car
before having positioned the lever in P.TOWING THE CAR
Make sure that the transmission is in
neutral (N), checking that the car moves
when pushed, and proceed in the
same way as for towing a normal car
with a manual gearbox.
IMPORTANT If the transmission cannot
be put in neutral (N), do not tow the
car and contact an Alfa Romeo
Dealership. Should the lever be in P,
release it before towing (see paragraph
"Positions of the lever").
IMPORTANT
INFORMATION
With car stationary and gear engaged,
always keep the brake pedal pressed
until you decide to set off, then release
the brake and accelerate gradually.
During prolonged stops with the engine
running, it is advisable to keep the
transmission in neutral (N).
To protect the clutch, never use the
accelerator to keep the car stationary
(for example when stopped uphills/
downhills): clutch overheating could
damage it. Use the brake pedal instead
or the handbrake and only press the
accelerator pedal when you wish to set
off.If reverse (R) is engaged, only engage
the 1stgear (or vice versa) when the car
is completely stopped.
Although it is highly inadvisable, if you
are driving downhill and, for unexpected
reasons, you let the car move forward
with the transmission in neutral (N),
when there is a request to engage
a gear, depending on the speed of the
car, the system will automatically
engage the best gear for the correct
transmission of drive torque to the
wheels.
107)
IMPORTANT
21) If the car is on a gradient, always
pull the handbrake BEFORE
placing the gear lever in P.
22) Engage reverse only with the car
stationary, engine at idling speed
and accelerator fully released.
157

DRIVING STYLE
Starting
Do not warm up the engine at low or
high revs when the car is stationary;
this causes the engine to warm up
more slowly, thereby increasing fuel
consumption and emissions. It is
therefore advisable to move off
immediately, slowly, avoiding high
speeds: in this way the engine will
warm up more quickly.
Unnecessary actions
Avoid accelerating when stopped at
traffic lights or before switching off the
engine. The latter action, as well as
double-declutching, is unnecessary and
causes increased fuel consumption
and pollution.
Gear selection
Use a high gear when traffic and road
conditions allow it. Using a low gear for
faster acceleration will increase fuel
consumption. In the same way
improper use of a high gear increases
consumption, emissions and engine
wear.Maximum speed
Fuel consumption considerably
increases as speed increases. Maintain
a constant speed, avoiding
unnecessary braking and acceleration,
which cost in terms of both fuel
consumption and emissions.
Acceleration
Accelerating violently severely affects
consumption and emissions:
acceleration should be gradual and
should not exceed the maximum
torque.
CONDITIONS OF USE
Cold starting
Short distances and frequent cold
start-ups will prevent the engine from
reaching optimal running temperature.
This results in a significant increase
in consumption levels (from +15 to
+30% on the urban cycle) and
emissions.Traffic and road
conditions
High fuel consumption is caused by
heavy traffic, for instance when
travelling in a queue with frequent use
of low gears or in large towns with
many traffic lights. Winding mountain
roads and rough road surfaces also
adversely affect consumption.
Stops in traffic
During prolonged hold-ups (e.g. level
crossings) switch off the engine.
159

ENGINE
GENERAL INFORMATION
1.4 Turbo Petrol 105 HP (*)1.4 Turbo Petrol 120 HP
Engine code 940B8000 940B7000
Cycle Otto Otto
Number and arrangement of cylinders 4 in line 4 in line
Piston bore and stroke (mm) 72.0 x 84.0 72.0 x 84.0
Total displacement (cm³) 1368 1368
Compression ratio 9.8 9.8
Maximum power (EC) (kW) 77 88
Maximum power (EC) (HP) 105 120
corresponding engine speed (rpm) 5000 5000
Maximum torque (EC) (Nm) 215 215
Maximum torque (EC) (kgm) 22 22
corresponding engine speed (rpm) 2500 2500
Spark plugs NGK IKR9J8 NGK IKR9J8
FuelUnleaded petrol 95 RON (EN 228
Specification)Unleaded petrol 95 RON (EN 228
Specification)
(*) For versions/markets, where provided
226
TECHNICAL SPECIFICATIONS

GENERAL INFORMATION
1.4 Turbo MultiAir 163 HP (*)1.4 Turbo MultiAir 170 HP
Engine code 955A8000 940A2000
Cycle Otto Otto
Number and arrangement of cylinders 4 in line 4 in line
Piston bore and stroke (mm) 72.0 x 84.0 72.0 x 84.0
Total displacement (cm³) 1368 1368
Compression ratio 10 10
Maximum power (EC) (kW) 120 125
Maximum power (EC) (HP) 163 170
corresponding engine speed (rpm) 5500 5500
NATURAL DYNAMIC NATURAL DYNAMIC
Maximum torque (EC) (Nm) 230 250 230 250
Maximum torque (EC) (kgm) 23.4 25.4 23.4 25.4
corresponding engine speed (rpm) 2250 2500 2250 2500
Spark plugs NGK IKR9J8 NGK IKR9J8
FuelUnleaded petrol 95 RON or 98 RON
(EN 228 Specification)Unleaded petrol 95 RON or 98 RON
(EN 228 Specification)
(*) For versions/markets, where provided
227