2018 Alfa Romeo 4C ABS

Electronic Brake Distribution System (EBD)
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 vehicle,
preventing sudden locking of the rear wheels and the
consequent instability of the vehicle.
Cornering Brake Control System (CBC)
The system acts when braking on corners, optimizing
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 vehicle) from
locking, ensuring better stability and direction for the
vehicle.
Drag Torque Control System (DTC)
This is an integral part of the ESC system and inter-
venes in the event 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 vehicle stability, above all in low-grip conditions.
AntiSlip Regulation System (ASR)
WARNING!
•Electronic Stability Control (ESC) cannot prevent
the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded
by prevailing road conditions. ESC cannot pre-
vent all collisions, including those resulting from
excessive speed in turns, driving on very slippery
surfaces, or hydroplaning. ESC also cannot pre-
vent collisions resulting from loss of vehicle
control due to inappropriate driver input for the
conditions. Only a safe, attentive, and skillful
driver can prevent collisions. The capabilities of
an ESC equipped vehicle must never be exploited
in a reckless or dangerous manner which could
jeopardize the user ’s safety or the safety of others.
• Vehicle modifications, or failure to properly
maintain your vehicle, may change the handling
characteristics of your vehicle, and may nega-
tively affect the performance of the ESC system.
Changes to the steering system, suspension, brak-
ing system, tire type and size or wheel size may
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SAFETY 85

When the two seconds have elapsed, without starting,
the system is automatically deactivated, gradually re-
leasing the braking pressure. During this release stage,
the typical brake disengagement noise, indicating that
the vehicle is going to move imminently, can be heard.
NOTE:
•HSA is not a parking brake; therefore, never leave the
vehicle without having engaged the parking brake,
turned the engine off and engaged first gear, so that
the vehicle is parked in safe conditions.
• There may be situations on small gradients (less than
8%), with vehicle 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.
Hydraulic Brake Assistant System (HBA)
WARNING!
• The HBA system can’t overrule the natural laws
of physics, and can’t increase the grip available
according to the condition of the road.
(Continued)
WARNING! (Continued)
•The HBA system cannot prevent accidents, in-
cluding those due to excessive speed on corners,
driving on low-grip surfaces or aquaplaning.
• 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 vehicle or any other road
user.
The HBA system is designed to improve the vehicles
braking capacity during emergency braking. The sys-
tem 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
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 no longer necessary.
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SAFETY 87

Engine And Gearbox/Transmission:
The system adjusts the transmission shift calibration for
sportier shifting.
NOTE:In Dynamic mode, the engine response to the
accelerator pedal position increases considerably. Con-
sequently, driving is less fluid and comfortable.
Deactivation
To deactivate Dynamic mode and return to Natural,
move lever downwards (to letter “A”) and hold for half
a second.
The LED corresponding to Natural mode will light up
and the Natural mode activation indication will appear
on the display.
Race Mode
Activation
Starting in Dynamic mode, move the Alfa DNA system
lever upwards (to the letter “D”) and hold in this
position for five seconds, until the Race mode activation
indicator appears on the display. When Race mode is activated, the longitudinal/lateral
accelerometer indicator screen (G-meter information) is
displayed automatically. This considers gravitational
acceleration (G).
Electronic Stability Control (ESC) and Anti-Slip
Regulation (ASR) systems:
These systems are deactivated in order to ensure the
fullest sensation of sport, leaving the driver in full
control of the vehicle. When the vehicle is in unstable
conditions, the ESC reactivates automatically when the
brake pedal is pressed until the ABS intervenes, thus
returning the vehicle to stable conditions. To deactivate
the ESC and ASR systems, reactivate Race mode.
Electronic Q2 system:
The system increases vehicle stability while accelerating
on bends, improving the agility of the vehicle.
Engine And Gearbox/Transmission:
The system adjusts the transmission shift calibration for
sportier shifting.
NOTE:
In Race mode, the sensitivity of the accelerator
pedal increases considerably. Consequently, driving is
less fluid and comfortable.
140 STARTING AND OPERATING

CavityMaxi Fuse Mini Fuse Description
F22 –20 Amp Yellow Engine Control Unit Power Supply
F23 –25 Amp Clear Alpine Amplifier – If Equipped
F24 –5 Amp Tan Anti-Lock Brake System (ABS)
F30 –10 Amp Red Water Pump, HVAC
F82 30 Amp Green –Headlamp Washer – If Equipped
F83 40 Amp Orange –Alfa Twin Clutch Transmission Pump
F84 –5 Amp Tan After Run Pump
F86 –15 Amp Blue Rear Power Outlet 12V
F88 –7.5 Amp Brown Heated Mirrors
Dashboard Fuse Box
The dashboard fuse box is part of the Body Control
Module (BCM) and is located on the passenger side under the forward passenger floor. Remove the six
screws and the forward floor pan to access the BCM.
Cavity
Vehicle Fuse Num-
ber Mini Fuse
Description
3 F53 7.5 Amp Brown Instrument Panel Node
4 F38 15 Amp Blue Central Door Locking
5 F36 10 Amp Red Diagnostic Socket, Vehicle Radio, TPMS, Alarm
6 F43 20 Amp Yellow Bi-Directional Washer
7 F48 20 Amp Yellow Passenger Power Window
170 IN CASE OF EMERGENCY

Tire Service Kit Components And Operation
WARNING!
•Do not attempt to seal a tire on the side of the
vehicle closest to traffic. Pull far enough off the
road to avoid the danger of being hit when using
the Tire Service Kit.
• Do not use Tire Service Kit or drive the vehicle
under the following circumstances:
– If the puncture in the tire tread is approxi- mately 1/4 inch (6 mm) or larger.
– If the tire has any sidewall damage.
– If the tire has any damage from driving with extremely low tire pressure.
– If the tire has any damage from driving on a flat tire.
– If the wheel has any damage.
– If you are unsure of the condition of the tire or the wheel.
• Keep Tire Service Kit away from open flames or
heat source.
(Continued)
WARNING! (Continued)
•A loose Tire Service Kit thrown forward in a
collision or hard stop could endanger the occu-
pants of the vehicle. Always stow the Tire Service
Kit in the place provided. Failure to follow these
warnings can result in injuries that are serious or
fatal to you, your passengers, and others around
you.
• Take care not to allow the contents of Tire Service
Kit to come in contact with hair, eyes, or clothing.
Tire Service Kit sealant is harmful if inhaled,
swallowed, or absorbed through the skin. It
causes skin, eye, and respiratory irritation. Flush
immediately with plenty of water if there is any
contact with eyes or skin. Change clothing as soon
as possible, if there is any contact with clothing.
• Tire Service Kit Sealant solution contains latex. In
case of an allergic reaction or rash, consult a
physician immediately. Keep Tire Service Kit out
of reach of children. If swallowed, rinse mouth
immediately with plenty of water and drink
plenty of water. Do not induce vomiting! Consult
a physician immediately.
172 IN CASE OF EMERGENCY

Use only manufacturer’s recommended brake fluid.
Refer to “Fluids And Lubricants ” in “Technical Speci-
fications” for further information.
WARNING!
•Use only manufacturer’s recommended brake
fluid. Refer to “Fluids And Lubricants” in “Tech-
nical Specifications” for further information. Us-
ing the wrong type of brake fluid can severely
damage your brake system and/or impair its per-
formance. The proper type of brake fluid for your
vehicle is also identified on the original factory
installed hydraulic master cylinder reservoir.
• To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep the
master cylinder reservoir cap secured at all times.
Brake fluid in a open container absorbs moisture
from the air resulting in a lower boiling point.
This may cause it to boil unexpectedly during
hard or prolonged braking, resulting in sudden
brake failure. This could result in a collision.
(Continued)
WARNING! (Continued)
•Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing
the brake fluid to catch fire. Brake fluid can also
damage painted and vinyl surfaces, care should
be taken to avoid its contact with these surfaces.
• Do not allow petroleum based fluid to contami-
nate the brake fluid. Brake seal components could
be damaged, causing partial or complete brake
failure. This could result in a collision.
CAUTION!
Use of improper brake fluids will affect overall
clutch system performance. Improper brake fluids
may damage the clutch system resulting in loss of
clutch function and the ability to shift the transmis-
sion.
8
SERVICING AND MAINTENANCE 213

Tire MarkingsNOTE:
•P (Passenger) — Metric tire sizing is based on U.S.
design standards. P-Metric tires have the letter “P”
molded into the sidewall preceding the size designa-
tion. Example: P215/65R15 95H.
• European — Metric tire sizing is based on European
design standards. Tires designed to this standard
have the tire size molded into the sidewall beginning
with the section width. The letter Pis absent from
this tire size designation. Example: 215/65R15 96H.
• LT (Light Truck) — Metric tire sizing is based on U.S.
design standards. The size designation for LT-Metric
tires is the same as for P-Metric tires except for the
letters “LT” that are molded into the sidewall preced-
ing the size designation. Example: LT235/85R16.
• Temporary spare tires are designed for temporary
emergency use only. Temporary high pressure com-
pact spare tires have the letter “T” or “S” molded into
the sidewall preceding the size designation. Ex-
ample: T145/80D18 103M.
• High flotation tire sizing is based on U.S. design
standards and it begins with the tire diameter
molded into the sidewall. Example: 31x10.5 R15 LT.
Tire Markings
1 — U.S. DOT Safety
Standards Code (TIN) 4 — Maximum Load
2 — Size Designation 5 — Maximum Pressure
3 — Service Description 6 — Treadwear, Traction and Temperature Grades 8
SERVICING AND MAINTENANCE 217

EXAMPLE:
H = Speed Symbol
–A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index un-
der certain operating conditions
–The maximum speed corresponding to the speed symbol should only be achieved under specified operating
conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits)
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL)
tire:
• XL = Extra load (or reinforced) tire, or
• LL = Light load tire or
• C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this
tire8
SERVICING AND MAINTENANCE 219