engine PEUGEOT 4C 2015 Service Manual

Electronic Stability Control (ESC) and Anti-Slip Regu-
lation (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 car.
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.
In Race mode the transmission only works in MANUAL
mode. Refer to theManual OperationinStarting and
Operatingfor further information.
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 appear
on the display.
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Natural Mode
Electronic Stability Control (ESC) and Anti-Slip Regu-
lation (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 car 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 asNatural
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.
This strategy can be activated with vehicle at a standstill,
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.
When the brake pedal is released, the car will start with
maximum acceleration. Despite the MANUAL mode, the
168 STARTING AND OPERATING

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.
(Continued)
CAUTION!(Continued)
•Driving through standing water may cause damage
to your vehicle’s drivetrain components. Always
inspect your vehicle’s fluids (i.e., engine oil, trans-
mission, axle, etc.) for signs of contamination (i.e.,
fluid that is milky or foamy in appearance) after
driving through standing water. Do not continue to
operate the vehicle if any fluid appears contami-
nated, 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 Warranty.
172 STARTING AND OPERATING

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 braking
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 car ’s understeer and over-
steer, 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.5
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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.
This vehicle’s advanced electronic brake control system
also includes: Electronic Brake Distribution (EBD), Anti-
Lock Brake System (ABS), Cornering Brake Control Sys-
tem (CBC), Drag Torque Control System (DTC), AntiSlip
Regulation System (ASR), Hill Start Assist (HSA), Hy-
draulic Brake Assistant System (HBA), ELECTRONIC Q2
system (E-Q2) and Ready Alert Brake (RAB). All of thesystems work together to enhance vehicle stability and
control in various driving conditions, and are commonly
referred to as ESC.
System Activation
The ESC system activates automatically when the engine
is started and can only be deactivated by selectingRace
mode. Refer to theSix-Speed Alfa Twin Clutch Trans-
missionin this section for further information.
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.
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.
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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 car) from locking,
ensuring better stability and direction for the car.
Drag Torque Control System (DTC)
This is an integral part of the ESC system and intervenes
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 car
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 prevent all
collisions, including those resulting from excessive
speed in turns, driving on very slippery surfaces, or
hydroplaning. ESC also cannot prevent collisions
resulting from loss of vehicle control due to inap-
propriate driver input for the conditions. Only a
safe, attentive, and skillful driver can prevent col-
lisions.The capabilities of an ESC equipped ve-
hicle must never be exploited in a reckless or
dangerous manner which could jeopardize the us-
er ’s safety or the safety of others.
(Continued)
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WARNING!(Continued)
•Vehicle modifications, or failure to properly main-
tain your vehicle, may change the handling charac-
teristics of your vehicle, and may negatively affect
the performance of the ESC system. Changes to the
steering system, suspension, braking system, tire
type and size or wheel size may adversely affect
ESC performance. Improperly inflated and un-
evenly worn tires may also degrade ESC perfor-
mance. Any vehicle modification 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.
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.
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Hill Start Assist (HSA)
This is an integral part of the ESC system and facilitates
starting on slopes, activating automatically in the follow-
ing cases:
•Uphill: car stationary on a road with a gradient higher
than 5%, engine running, brake pressed and transmis-
sion in neutral (N) or gear other than reverse engaged.
•Downhill: car stationary on a road with a gradient
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 accelerator.When the two seconds have elapsed, without starting,
the system is automatically deactivated, gradually releas-
ing the braking pressure. During this release stage, the
typical brake disengagement noise, indicating that the
car 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 an-
other vehicle or object. The driver is, in any case,
responsible for safe driving.
182 STARTING AND OPERATING

warning limit in any of the four active road tires. The
vehicle may need to be driven for up to 20 minutes
above 15 mph (24 km/h) in order for the TPMS to
receive this information.
General Information
This device complies with Part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•
This device must accept any interference received, includ-
ing interference that may cause undesired operation.
The tire pressure sensors are covered under one of the
following licenses:
United States MRXC4W4MA4
Canada 2546A-C4W4MA4
(Single)
FUEL REQUIREMENTS — 1.750 Turbo
The 1.750 turbo engine is designed to meet
all emissions regulations and provide ex-
cellent fuel economy and performance
when using high-quality premium un-
leaded gasoline with an octane rating of
Only 91 or higher.
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of gasoline (with the ap-
propriate octane rating for your engine) before consider-
ing service for the vehicle.
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