engine Alfa Romeo 4C 2017 Service Manual

General Notes
When the vehicle is stopped and in gear, 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).
When stopped on an incline, always hold the vehicle in
place using the brakes. On steep inclines, Hill Start
Assist (HSA) will temporarily hold the vehicle in posi-
tion when the brake pedal is released. If the accelerator
pedal is not applied after a short time, the vehicle will
roll back. Either reapply the brake (to hold the vehicle)
or press the accelerator to climb the hill.
Only shift between FIRST (1) and REVERSE (R) when
completely stopped, with the brake pedal pressed.
When necessary, it is possible to engage FIRST (1),
REVERSE (R) or NEUTRAL (N) with the engine off, the
key at MAR-ON and the brake pressed. In this case,
wait at least five seconds between one gear change and
the next, in order to safeguard the operation of the
hydraulic system, and the pump in particular.For uphill departures, accelerate gradually but fully,
immediately after releasing the parking brake or the
brake pedal; this allows the engine speed to increase to
provide more torque at the wheels.
ALFA DNA SYSTEM (DYNAMIC VEHICLE
CONTROL SYSTEM)
This vehicle is equipped with a “Alfa DNA” system
lever (located on the center console). There are four
modes of operation to be selected according to driving
style and road conditions:
•
Dynamic (This mode alters the transmission’s auto-
matic shift schedule for sportier driving [D]).
• Natural (mode for driving in normal conditions [N]).
• All Weather (mode for driving in poor grip condi-
tions, such as rain and snow [A]).
• Race (sports driving mode [D]).5
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This also acts on the dynamic vehicle control systems
(engine, gearbox/transmission, ESC system).
Driving Modes
The Alfa DNA system lever will always return to the
center position after use.
The selected driving mode is indicated by the corre-
sponding LED switching in the panel and by an indi-
cation on the display.
Dynamic Mode
Activation
Move the Alfa DNA system lever upwards (to the letter
“D”) and hold in this position for half a second, until
the corresponding LED lights up and the Dynamic
mode activation indicator appears on the display.
When Dynamic mode is activated, the turbocharger
pressure and engine oil temperature screen is displayed
automatically. When released, the Alfa DNA system
lever will return to the central position.
NOTE:Dynamic Mode will be inhibited until the
vehicle has accumulated 155 miles (250 km).
Electronic Stability Control (ESC) and Anti-Slip
Regulation (ASR) systems:
The ESC and ASR system ensures more enjoyable,
sportier driving while guaranteeing the stability of the
vehicle.
Electronic Q2 system:
The system increases vehicle stability while accelerating
on bends, improving the agility of the vehicle.
Alfa DNA Mode Selector
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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.
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NOTE:In Race mode, the sensitivity of the accelerator
pedal increases considerably. Consequently, driving is
less fluid and comfortable.
In Race mode, the transmission only works in
MANUAL mode.
Deactivation
To deactivate Race mode and return to Dynamic mode,
move the Alfa DNA system lever downwards (to letter
“A”) and keep it in this position for half a second.
The LED corresponding to Dynamic mode will light up
and the Dynamic mode activation indication will ap-
pear on the display.
Natural Mode
Electronic Stability Control (ESC) and Anti-Slip
Regulation (ASR) systems:
ESC and ASR system thresholds are aimed at providing
comfort and safety in normal grip and driving condi-
tions.
Electronic Q2 system:
The system is calibrated to ensure the best driving
comfort. Engine And Gearbox/Transmission:
Standard response shifting.
All Weather Mode
Activation
Move the Alfa DNA system lever downwards (to the
letter “A”) and hold in this position for half a second,
until the corresponding LED lights up and the All
Weather mode activation indicator appears on the dis-
play.
Electronic Stability Control (ESC) and Anti-Slip Regu-
lation (ASR) systems:
ESC and ASR system thresholds are aimed at ensuring
maximum safety in low-grip driving conditions. It is
advisable to select All Weather mode in the presence of
low-grip road surfaces.
Electronic Q2 System:
The system is deactivated.
Engine And Gearbox/Transmission:
Standard response shifting.
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Deactivation
To deactivate All Weather mode and return to Natural
mode, move the Alfa DNA system lever upwards (to
letter “D”) and keep it in this position for half a second.
NOTE:
•When the engine is next started, All Weather mode or
Natural mode will be retained when the vehicle is
restarted.
• When the engine is next started, Race mode or
Dynamic mode previously selected is not retained.
The system will reactivate in Natural mode.
• It is not possible to go 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.
System Failure
In the event of system failure or a fault with the gear
selector, no driving modes can be selected.
The display will become grey (same screen as Natural
mode) but without an indication of the Alfa DNA
setting. The display will also show a warning message. Please contact your authorized dealer for service.
Launch Control
The Launch Control strategy permits high-performance
acceleration from stand still.
This strategy can be activated with vehicle at a stand-
still, Race mode selected and FIRST (1st) gear engaged.
The sequence of operations to perform is as follows:
1. Press the brake pedal and hold it down.
2. Press the accelerator pedal and hold it down.
3. Press the
–paddle behind the steering wheel. (This
allows the engine to rev above the 3000 RPM limit.)
When the brake pedal is released, the vehicle will start
with maximum acceleration. Despite the MANUAL
mode, the vehicle will automatically shift the gear to
guarantee maximum acceleration, once the correct shift-
ing speed has been reached.
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WARNING!(Continued)
•Failure to follow these warnings may result in
injuries that are serious or fatal to you, your
passengers, and others around you.
CAUTION!
• Always check the depth of the standing water
before driving through it. Never drive through
standing water that is deeper than the bottom of
the tire rims mounted on the vehicle.
• Determine the condition of the road or the path
that is under water and if there are any obstacles
in the way before driving through the standing
water.
• Do not exceed 5 mph (8 km/h) when driving
through standing water. This will minimize wave
effects.
• Driving through standing water may cause dam-
age to your vehicle’s drivetrain components. Al-
ways inspect your vehicle’s fluids (i.e., engine oil,
transmission, axle, etc.) for signs of contamination
(i.e., fluid that is milky or foamy in appearance)
(Continued)
CAUTION! (Continued)
after driving through standing water. Do not
continue to operate the vehicle if any fluid ap-
pears contaminated, as this may result in further
damage. Such damage is not covered by the New
Vehicle Limited Warranty.
• Getting water inside your vehicle’s engine can
cause it to lock up and stall out, and cause serious
internal damage to the engine. Such damage is
not covered by the New Vehicle Limited War-
ranty.
PARKING BRAKE
Before leaving the vehicle, make sure that the parking
brake is fully applied. Also, be certain to leave manual
transmission in REVERSE (R) or FIRST (1st) gear.
The parking brake lever is located in the central tunnel.
To apply the parking brake, pull the parking brake lever
up as firmly as possible. To release the parking brake,
pull the parking brake lever up slightly, push the center
button, then lower the parking brake lever completely.
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CAUTION!
If the Brake Warning Light remains on with the
parking brake released, a brake system malfunction
is indicated. Have the brake system serviced by an
authorized dealer immediately.
BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic brake
systems. If either of the two hydraulic systems loses
normal capability, the remaining system will still func-
tion. However, there will be some loss of overall brak-
ing effectiveness. You may notice increased pedal travel
during application, greater pedal force required to slow
or stop, and potential activation of the “Brake System
Warning Light”.
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off), the
brakes will still function. However, the effort required
to brake the vehicle will be much greater than that
required with the power system operating.
ESC (ELECTRONIC STABILITY CONTROL)
SYSTEM
The ESC system improves the directional control and
stability of the vehicle in various driving conditions.
The ESC system corrects the vehicle understeer and
oversteer, distributing the brake force on the appropri-
ate wheels. The torque supplied by the engine can also
be reduced in order to maintain control of the vehicle.
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
(Continued)
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WARNING!(Continued)
•The ABS cannot prevent accidents, including
those due to excessive speed on corners, driving
on low-grip surfaces or aquaplaning.
• The capability of the ABS must never be tested
irresponsibly and dangerously, in such a way as
to compromise personal safety and the safety of
others.
• For the correct operation of the ABS, the tires
must of necessity be the same make and type on
all wheels, in perfect condition and, above all, of
the prescribed type and dimensions.
When you are in a severe braking condition involving
the use of the ABS, you will experience some pedal drop
as the vehicle comes to a stop. This is the result of the
system reverting to the base brake system.
Engagement of the ABS may be accompanied by a
pulsing sensation. You may also hear a clicking noise.
These occurrences are normal and indicate that the
system is functioning properly.
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.
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.
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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
(Continued)
WARNING! (Continued)
adversely affect ESC performance. Improperly
inflated and unevenly worn tires may also de-
grade ESC performance. Any vehicle modifica-
tion or poor vehicle maintenance that reduces the
effectiveness of the ESC system can increase the
risk of loss of vehicle control, vehicle rollover,
personal injury and death.
This is an integral part of the ESC system and automati-
cally operates in the event of one or both drive wheels
slipping, loss of grip on wet roads (hydroplaning) 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.
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System Intervention
This is indicated by the flashing of the warning light on
the instrument panel, to inform the driver that the
vehicle is in critical stability and grip conditions.
Hill Start Assist (HSA)
This is an integral part of the ESC system and facilitates
starting on slopes, activating automatically in the fol-
lowing cases:
•Uphill: vehicle stationary on a road with a gradient
higher than 5%, engine running, brake pressed and
transmission in neutral (N) or gear other than reverse
engaged.
• Downhill: vehicle stationary on a road with a gradi-
ent higher than 5%, engine running, brake pressed
and reverse (R) 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 two seconds, allowing your right foot
to be moved easily from the brake pedal to the accel-
erator. 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.
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