2016 Alfa Romeo 4C four wheel drive

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 vehicle is
turning more than it should according
to the angle of the steering wheel.
Understeer: occurs when the vehicle
is turning less than it should according
to the angle of the steering wheel
The ESC system also includes the
following systems:
ABS
EBD
CBC
DTC
ASR
HILL HOLDER
HBA
“ELECTRONIC Q2” (“E-Q2”)
"PRE-FILL" (RAB - Ready Alert
Brake)
SYSTEM ACTIVATION
The ESC system activates automatically
when the engine is started and can only
be deactivated by selecting "Race"
mode. For more details, refer to the
"Alfa DNA system" paragraph in this
chapter.
SYSTEM INTERVENTION
This is indicated by the flashing of thewarning light on the instrument
panel, to inform the driver that the car is
in critical stability and grip conditions.
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.
31) 32) 33) 34) 35) 36) 37)
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.
EBD SYSTEM
The EBD system is an integral part of
the ABS system and intervenes during
braking, distributing the brake force
optimally between front and rear
wheels.
This guarantees greater braking stability
for the vehicle, preventing sudden
locking of the rear wheels and the
consequent instability of the vehicle.
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.
DTC (Drag Torque
Control) SYSTEM
This is an integral part of the ABS
system and intervenes in the case of
sudden downshifting, or during braking
when the ABS intervenes, restoring
torque to the engine and thus
preventing excessive drag at the drive
wheels, which may lead the wheels to
lock and a loss of car stability, above all
in low-grip conditions.
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tyre low pressure control warning lightswitches on constantly, the inflation
pressure must be adjusted until it
reaches the pressure prescribed for
cold tyres. After the automatic update
of the system, the tyre pressure control
warning light switches off. You may
need to drive the car for about 20
minutes at a speed higher than 20 km/h
to allow the TPMS to receive this
information.
NOTE
The TPMS does not replace the
normal tyre maintenance service and
does not indicate any fault in a tyre.
Therefore, the TPMS should not be
used as pressure switch while adjusting
the tyre inflation pressure.
Driving with insufficient tyre pressure
causes their overheating and can result
in tyre failure. The low inflation pressure
reduces fuel efficiency and tyre tread life
and may also affect handling and
braking performance of the car.
The TPMS does not replace the
correct tyre maintenance. It is up to the
driver to maintain the correct tyre
pressure level measuring it with a
suitable pressure switch. This is
necessary even if the decrease in the
inflation pressure value does not cause
the tyre pressure control warning light
to switch on.
The TPMS warns the driver of any
condition of insufficient tyre pressure Ifthis drops below the insufficient
pressure limit for any reason including
low temperature and normal pressure
loss of the tyre.
The seasonal temperature changes
affect tyre pressure.
The TPMS uses wireless devices with
electronic sensors mounted on the
wheel rims to constantly monitor the
value of tyre pressure. The sensors
mounted on each wheel as part of the
valve stem transmit various information
of the tyres to the receiver module, in
order to calculate the pressure.
IMPORTANT Monitoring and
maintaining the correct pressure in all
four tyres are particularly important.
Tyre pressure
monitoring system low
pressure warnings
46) 47) 48) 49) 50) 51) 52) 53) 54)
The system warns the driver if one or
more tyres are flat by the dedicated
warning light
continuously on in the
instrument panel and by displaying
dedicated messages.In this case, stop the car as soon as
possible, check the inflation pressure of
each tyre and inflate to the cold tyre
pressure value prescribed for the car.
The system will automatically update
and after receiving the tyre pressure
update the tyre pressure control
warning light switches off. You may
need to drive the car for about 20
minutes at a speed higher than 20 km/h
to allow the system to receive this
information.TPMS operation faults
The system fault is indicated by the
dedicated warning lightwhich first
flashes for 75 seconds and then stays
on steadily. This can occur in any of the
following situations:
interference caused by electronic
devices or radio frequency emissions
similar to those of the TPM sensors.
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In order to use the system properly, refer to the following table when you have to change wheels/tyres:
OperationSensors on wheels fitted on
carFailure indication Action necessary
– – YESContact a dedicated Alfa Romeo
Dealership
Wheel change with winter tyres NO YESContact a dedicated Alfa Romeo
Dealership
Wheel change with winter tyres YES NO –
Wheel change with others of a
different size
(*)YES NO –
(*)Given as an alternative in the Owner Handbook as well as in the Registration Document; available from Lineaccessori Alfa Romeo.
WARNING
46)The presence of the TPMS does not
permit the driver to neglect regular checks
of the tyre pressure, including for the spare
wheel.
47)Tyre pressure must be checked with
tyres rested and 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. Repeat the check when
the tyres are cold.
48)Should one or more wheels be fitted
without sensors, the system will no longer
be available and, in addition to the TPMS
warning light flashing for less than one
minute before becoming constant, a
warning message will be shown on the
display, until four wheels with sensors are
fitted again.49)The TPMS cannot warn of sudden
decreases in tyre pressure (for example
when a tyre bursts). In this case, stop the
car, braking with caution and avoiding
abrupt steering.
50)Replacing standard tyres with winter
tyres (and vice versa) requires TPMS
adjustment that must only be performed by
a dedicated Alfa Romeo Dealership.
51)Changes in outside temperature may
cause tyre pressures to vary. The TPMS
system may temporarily indicate insufficient
pressure. In this case, check the tyre
pressure when cold and, if necessary,
restore the inflation values.52)When a tyre is removed, it is advisable
to replace the rubber valve seal as well:
contact a dedicated Alfa Romeo
Dealership. Tyre and/or rim fitting/removal
operations require specific precautions; to
avoid damaging or fitting the sensors
incorrectly, tyre and/or rim fitting/removal
operations should only be carried out by
specialised staff. Contact a dedicated Alfa
Romeo Dealership.
53)Intense radio-frequency interference
may prevent the correct operation of the
TPMS. This condition will be indicated by a
message on the display. The message will
disappear automatically as soon as the
radio-frequency interference ceases to
affect the system.
53

make sure the contact surfaces
between space-saver wheel and hub
are clean and free from impurities so
that the fixing stud bolts will not come
loose;
fit the space-saver wheel and tighten
the first stud bolt for a few turns into the
lowest hole. Tighten the remaining stud
bolts in the same way.
take the spanner A fig. 90 and fully
tighten the fixing studs;
operate the suitable tool E to lower
the car. Then extract the jack;
use the spanner A and check all stud
bolts are fully tightened in a criss-cross
fashion as per the numerical sequence
illustrated in fig. 97;
WARNING While replacing the wheel it
is advisable to place it upside down,
with the aesthetic part facing upward,
so as not to damage the alloy rim.
REFITTING THE WHEEL
Following the procedure described
previously, raise the car and remove the
space-saver wheel.
Proceed as follows:
make sure the contact surfaces
between standard wheel and hub are
clean and free from impurities so that
the fixing stud bolts will not come loose;
tighten the retaining stud bolts using
spanner A fig. 90;
lower the car and remove the jack;
use spanner A to fully tighten the
stud bolts, following the sequence
illustrated in fig. 97
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At the end of the operation
Proceed as follows:
reposition the space-saver wheel;
insert the jack and the other tools in
the container;
arrange the container and tools in the
luggage compartment;
WARNING
101)The space-saver wheel (for
versions/markets where provided) is
specific to your car, do not use it on other
models, or use the space-saver wheel of
other models on your car. The space-saver
wheel must only be used in the event of an
emergency. Never use it for more than
strictly necessary and never exceed
80 km/h. On the space-saver wheel there
is an orange label, summarising the main
warnings regarding space-saver wheel
usage restrictions. Never remove or cover
the label. The label contains the following
indications in four languages: "Warning! For
temporary use only! 80 km/h max! Replace
with standard wheel as soon as possible.
Never cover this indication."
102)Alert other drivers that the car is
stationary in compliance with local
regulations: hazard warning lights, warning
triangle, etc. Any passengers on board
should leave the car, especially if it is
heavily laden. Passengers should stay
away from on-coming traffic while the
wheel is being changed. On hills or uneven
roads, use chocks or appropriate objects
to block the wheels of the vehicle.
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