2015 Alfa Romeo 4C check engine

ESSENTIAL INFORMATION!
REFUELLING
Only refuel with unleaded petrol with octane rating (RON) not less than 95, in compliance with the European specification EN228. In
particular, the 4C’s engine has been designed to comply with all emission limits while simultaneously guaranteeing minimal consumption and
maximum performance, using premium-quality unleaded petrol with octane rating (RON) of 98 or higher. The use of petrol that does not
conform to the specification indicated may cause the
warning light to switch on and the irregular operation of the engine.
STARTING THE ENGINE
Make sure that the handbrake is engaged. Press the brake pedal and, without pressing the accelerator, turn the ignition key to AVV; release it
as soon as the engine has started.
PARKING ON FLAMMABLE MATERIAL
The catalytic converter develops high temperatures during operation. Do not park the car on grass, dry leaves, pine needles or other
flammable material: fire hazard.
RESPECTING THE ENVIRONMENT
The car is fitted with a system that carries out a continuous diagnosis of the emission-related components in order to help protect the
environment.
ELECTRICAL ACCESSORIES
If, after purchasing the car, you want to install accessories that require an electrical supply (with the risk of gradually draining the battery),
contact the dedicated Alfa Romeo Dealership which will calculate the overall electrical consumption and check that the car’s electrical system
can support the required load.
SCHEDULED SERVICING
Correct maintenance of the car is essential for ensuring that it maintains its performance and its safety features, its environmental friendliness
and low running costs for a long time to come.
THE OWNER HANDBOOK CONTAINS…
... important information, advice and warnings for correct use, driving safety and maintenance of your car over time. Special attention must
be paid to the symbols provided(personal safety)(environmental protection)(car integrity).

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REAR LIGHTS
❒Bulb types ..........................................127
❒Bulb replacement ................................126
LUGGAGE COMPARTMENT /
ENGINE COVER
❒Opening/closing .................................. 39
ENGINE
❒Checking levels ...................................145
❒Technical data .....................................165
FUEL CAP
❒Opening/closing .................................. 58
2A0L0121
6
GRAPHICAL INDEX

IMPORTANT
1) Used batteries may be harmful to
the environment if not disposed of
correctly. They must be disposed
of as specified by law in the
special containers or taken to the
dedicated Alfa Romeo Dealership,
which will take care of their
disposal.
ALARM
(for versions/markets, where provided)
Operation
The alarm activates in the following
cases:
❒wrongful opening of one of the doors
or the tailgate (perimeter protection);
❒wrongful operation of the ignition
switch (key turned to MAR-ON);
❒cutting of the battery leads;
❒movement inside the passenger
compartment (volumetric protection);
❒anomalous lifting/tilting of the car.
Operation of the alarm is indicated by
an acoustic and visual signal (flashing of
the direction indicators for several
seconds). The alarm activation modes
may vary according to the market.
There is a maximum number of
acoustic/visual cycles. When this is
reached the system returns to normal
operation.
IMPORTANT The engine locking
function is guaranteed by the Alfa
Romeo CODE, which is automatically
activated when the key is extracted
from the ignition switch.
IMPORTANT The alarm is adapted to
meet requirements in various countries.Activation
With the doors and tailgate closed and
the ignition key either turned to STOP
or removed, point the key with remote
control towards the car then press
and release the
button.
For versions/markets, where provided,
the system emits an acoustic signal
and activates door locking.
A self-diagnosis stage lasting
approximately 30 seconds precedes
the activation of the alarm: during this,
the LED flashes on the dashboard at
a frequency of about one flash per
second.
After the self-diagnosis stage, the LED
flashes at a lower frequency (one flash
every 3 seconds approx.).
If, after the alarm is switched on, a
second acoustic signal is emitted
and/or a visual signal via the LED on
the dashboard, wait about 4 seconds
and switch off the alarm by pressing the
button, check that the doors and
tailgate are closed correctly and then
reactivate the system by pressing
the
button.
If the alarm emits an acoustic signal
even when the doors and tailgate are
closed correctly, a system malfunction
has occurred: in this case, contact a
dedicated Alfa Romeo Dealership.
13

CONTROLS
HAZARD WARNING
LIGHTS
Operation
Press switch A fig. 26 to switch the
lights on/off.
Warning lights
andon the panel
are lit up when the hazard warning
lights are on.
16)
REAR FOG LIGHT
Operation
Press the
fig. 27 button to switch
the light on/off.The LED on the button lights up to
indicate the activation of the rear fog
light. The rear fog light switches on only
when the dipped headlights are on.
CENTRAL LOCKING
Operation
Press the
fig. 28 button to lock all
doors at the same time. When the
doors are locked, the LED on the
button lights up.
Locking takes place irrespective of the
position of the ignition key.FUEL CUT-OFF SYSTEM
Operation
This intervenes in the event of impact,
causing:
❒fuel supply cut-off with the engine
consequently switching off;
❒the automatic unlocking of the doors;
❒the switching on of the interior lights;
❒the switching on of the hazard
warning lights.
The digital
warning light and the
dedicated message on the display
indicate the intervention of the system.
Carefully check the car for fuel leaks, for
instance in the engine compartment,
under the car or near the tank area.
17)
26A0L0023
27A0L002428A0L0026
33

The restoration procedure must be
performed as described below with the
doors closed:
❒completely open the driver's door
window keeping the operating button
pressed for at least three seconds
after the (lower) end of travel position
is reached;
❒completely raise the driver side
window and hold the button down for
at least 3 seconds once the (upper)
end of travel position has been
reached;
❒proceed in the same way as
described in points 1 and 2 for the
passenger side door;
❒make sure that the initialisation is
correct by checking that the windows
work automatically.
WARNING
20) Incorrect use of the electric
windows may be dangerous.
Before and during their operation
ensure that passengers are not
at risk of injury from the moving
glass, either through personal
objects getting caught in the
mechanism or by being hit by it
directly. When leaving the car,
always remove the key from the
ignition to prevent accidental
operation of the electric windows
from being a hazard for those
still on board.
LUGGAGE
COMPARTMENT /
ENGINE COVER
21)
OPENING
IMPORTANT During normal car
operation, the luggage compartment
can reach temperatures above 65°C.
Pay attention when transporting objects
that may be damaged at such
temperatures. Do not keep aerosol
cans in the car: danger of explosion.
Aerosol cans must not be exposed to
temperatures above 50°C.
Procedure
22) 23)
❒with driver side door open, pull lever
A fig. 41, located at the point
illustrated in the figure;
41A0L0037
39

❒raise the tailgate and release
supporting rod B fig. 42 from its
locking device C;
❒insert the end of the rod in housing D
fig. 43, making sure that the rod
engages in the smallest hole of the
retaining clip. Care must be taken to
keep the tailgate raised until the
rod is fixed in the correct position.
24)
IMPORTANT Maintain a tight grip on
the tailgate when raising, in order to
prevent any external occurrence (e.g. a
gust of wind) from suddenly opening
the tailgate to end of travel. Additionally,
in order to prevent any damage to the
car or broken windows, do not force
the tailgate beyond the opening
position necessary to secure the
supporting rod B in the hole of the
retaining clip.
CLOSING
Procedure
25)
❒hold the tailgate up with one hand
and use the other to remove rod B
fig. 42 from housing D fig. 43 and
reinsert it in its locking device C fig.
42;
❒lower the engine cover to
approximately 20 centimetres from
the engine compartment and let
it drop. Make sure that the engine
cover is completely closed and
not only fastened in safety position by
trying to open it. If it is not completely
closed, do not press the engine
cover down, but raise it and repeat
the procedure.
IMPORTANT Always check that the
tailgate is closed correctly to prevent it
from opening while the car is travelling.
WARNING
21) The maximum permitted load in
the luggage compartment, in
addition to the kits provided, is
15 kg.
22) When accessing the rear
luggage compartment, take care
with parts that may be hot, owing
to the adjacent engine
compartment. Danger of serious
burns.
23) Perform these operations only
with car stationary.
24) The tailgate may drop suddenly if
the supporting rod is not
positioned correctly.
25) For safety reasons, the tailgate
must always be closed properly
while the car is travelling.
Therefore, always make sure that
the tailgate is closed properly
and that the lock is engaged. If
you realise during travel that the
lock is not fully engaged, stop
immediately and close the tailgate
in the correct manner.
42A0L0038
43A0L0039
40
GETTING TO KNOW YOUR CAR

The car also has a connector, which
can interface with appropriate tools,
that makes it possible to read the error
codes stored in the electronic control
units together with a series of specific
parameters for engine operation and
diagnosis. This check can also be
carried out by the traffic control
authorities.
IMPORTANT After eliminating a fault, to
check the system completely, the
dedicated Alfa Romeo Dealership is
obliged to run tests and, if necessary,
road tests which may also require a
long journey.RADIO SYSTEM
(for versions/markets, where provided)
The radio system consists of:
❒supply cables for radio, speakers and
aerial;
❒radio;
❒aerial on front bumper;
❒No. 2 tweeter speakers with 38 mm
diameter and No. 2 mid-woofer
speakers with 130 mm diameter,
fitted on the doors.
For further information on radio
functions and use, refer to the
dedicated Supplement attached to the
On-Board Documentation.
ACCESSORIES
PURCHASED BY THE
OWNER
If after purchasing the car, you decide
to install electrical accessories that
require a permanent electric supply
(radio, satellite anti-theft system, etc.) or
accessories that in any case burden
the electric supply, contact the
dedicated Alfa Romeo Dealership ,
whose qualified personnel, besides
suggesting the most suitable devices
from Lineaccessori Alfa Romeo, will
also check whether the car's electrical
system is able to withstand the load
required, or whether it needs to be
integrated with a more powerful battery.
44)
INSTALLING ELECTRICAL
/ ELECTRONIC DEVICES
Electrical and electronic devices
installed after buying the car in the
context of after-sales service must carry
the following label:fig. 52
52DISPOSITIVI-ELETTRONICI
50
GETTING TO KNOW YOUR CAR

Warning lights on
panelWhat it means What to do
amberINJECTION/EOBD SYSTEM FAILURE
In normal conditions, when the ignition key is turned to
MAR-ON the warning light switches on, but should
switch off as soon as the engine is started.
The operation of the
warning light may be checked
by the traffic police using specific devices. Comply with
the laws and regulations of the country where you are
driving.5)
If the warning light stays on or switches on when driving,
it means that the injection system is not working
properly; in particular, if the warning light comes on
constantly, this indicates a malfunction in the supply/
ignition system that could cause excessive exhaust
emissions, a possible loss of performance, poor
driveability and high fuel consumption.
On some versions, the display shows the dedicated
message.
The warning light switches off if the malfunction
disappears, but it is still stored by the system.Under these conditions, you may continue
travelling at a moderate speed without
demanding excessive effort from the
engine. Prolonged use of the car with the
warning light on constantly may cause
damage.
Contact the dedicated Alfa Romeo
Dealership as soon as possible.
If the warning light flashes, it means that the catalytic
converter may be damaged.In this case, it is necessary to release the
accelerator pedal to lower the speed of
the engine until the warning light stops
flashing. Continue the journey at moderate
speed, trying to avoid driving conditions
that may cause further flashing and
contact the dedicated Alfa Romeo
Dealership as soon as possible.
77