check engine Alfa Romeo Giulietta 2015 User Guide

Warning lights on
panelWhat it means What to do
redENGINE COOLANT TEMPERATURE TOO
HIGH
When the key is turned to MAR-ON, the warning
light switches on but should switch off after a few
seconds. The warning light turns on when the
engine is overheated.
The display shows the dedicated message.When driving normally: stop the car, switch off the
engine and check that the water level in the
reservoir is not below the MIN mark. If it is, wait
for the engine to cool down, then slowly and
carefully open the cap, top up with coolant and
check that the level is between the MIN and MAX
marks on the reservoir. Also check visually for any
fluid leaks. Should the warning light turn on again
at the next start-up, contact an Alfa Romeo
Dealership.
If the car is used under demanding conditions
(e.g. in high-performance driving): slow down
and, if the warning light stays on, stop the car.
Wait for 2 or 3 minutes with the engine running
and slightly accelerated to further favour the
coolant circulation. Then stop the engine. Check
the correct coolant level as described above.
IMPORTANT Over demanding routes, it is
advisable to keep the engine on and slightly
accelerated for a few minutes before switching it
off.
105

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 it should
switch off as soon as the engine is started. The operation
of
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.
13)
If the warning light remains on or switches on whilst
driving, it means that the injection system is not working
properly. The warning light on constantly signals a
malfunction in the supply/ignition system which could
cause high exhaust emissions, a possible loss of
performance, poor driveability and high consumption.
On some versions, the display shows the dedicated
message. The warning light goes out after the fault
disappears: the indication is stored in 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 an Alfa Romeo Dealership as
soon as possible.
Petrol engines only
If the warning light flashes, it means that the catalytic
converter may be damaged.In this case, 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 an Alfa Romeo
Dealership as soon as possible.
113

Warning lights on
panelWhat it means What to do
amberGLOW PLUG HEATING/GLOW PLUG
HEATING FAILURE (diesel versions)
This warning light switches on when the key is
turned to MAR-ON. It will switch off as soon as
the heater plugs have reached a preset
temperature. The engine can be started as soon
as the warning light switches off.
IMPORTANT In mild or high temperature
conditions, the warning light comes on for a very
short time only.
Glow plug preheating failure
The warning light will flash (a message will appear
on the display, on some versions) to indicate a
fault in the glow plugs preheating system.Contact an Alfa Romeo Dealership as soon as
possible.
amberWATER IN DIESEL FILTER (diesel versions)
The warning light remains on constantly when
driving (together with a message in the display),
to indicate the presence of water in the diesel
filter.
14)
WARNING
68) Failure of thewarning light is indicated by thewarning light switching on. In addition, the airbag system
automatically disables the passenger side airbag. Before proceeding, contact an Alfa Romeo Dealership to have the
system checked immediately.
114
KNOWING THE INSTRUMENT PANEL

❒the brake pedal is pressed for longer
than 10 minutes;
❒the driver's door is opened with
creeping deactivated (for example
with handbrake engaged) without
pressing brake and/or accelerator
pedals;
❒a fault has been detected in the
transmission.
IMPORTANT Shifting to neutral (N) -
operated by the system - involves
a situation of inconsistency between
gear lever position and gear engaged.
The manoeuvre is accompanied by
an acoustic inconsistency signal. This
acoustic signal continues until the gear
lever is placed in P or N, to restore
the correct transmission operation
conditions.
PARKING THE CAR
To park safely, with the brake pedal
pressed, P must be engaged and, in
case of parking uphills/downhills, the
handbrake must be engaged.
Before releasing the brake pedal, wait
until P appears on the display.
IMPORTANT NEVER leave the car
before having positioned the lever in P.TOWING THE CAR
Make sure that the transmission is in
neutral (N), checking that the car moves
when pushed, and proceed in the
same way as for towing a normal car
with a manual gearbox.
IMPORTANT If the transmission cannot
be put in neutral (N), do not tow the
car and contact an Alfa Romeo
Dealership. Should the lever be in P,
release it before towing (see paragraph
"Positions of the lever").
IMPORTANT
INFORMATION
With car stationary and gear engaged,
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).
To protect the clutch, never use the
accelerator to keep the car stationary
(for example when stopped uphills/
downhills): clutch overheating could
damage it. Use the brake pedal instead
or the handbrake and only press the
accelerator pedal when you wish to set
off.If reverse (R) is engaged, only engage
the 1stgear (or vice versa) when the car
is completely stopped.
Although it is highly inadvisable, if you
are driving downhill and, for unexpected
reasons, you let the car move forward
with the transmission in neutral (N),
when there is a request to engage
a gear, depending on the speed of the
car, the system will automatically
engage the best gear for the correct
transmission of drive torque to the
wheels.
107)
IMPORTANT
21) If the car is on a gradient, always
pull the handbrake BEFORE
placing the gear lever in P.
22) Engage reverse only with the car
stationary, engine at idling speed
and accelerator fully released.
157

STORING THE CAR
If the car is to be left inactive for longer
than a month, the following precautions
should be noted:
❒park the car in covered, dry and if
possible well-ventilated premises and
slightly open the windows;
❒check that the handbrake is not
engaged;
❒disconnect the negative battery
terminal and check the battery
charge. Repeat this check once
every three months during storage;
❒if the battery is not disconnected
from the electrical system, checks its
state of charge every thirty days;
❒clean and protect the painted parts
using protective wax;
❒clean and protect the shiny metal
parts using special compounds
available commercially;
❒sprinkle talcum powder on the
windscreen and rear window wiper
rubber blades and lift them off the
glasses;
❒slightly open the windows;❒cover the car with a cloth or
perforated plastic sheet. Do not use
compact plastic sheets which do
not allow humidity to evaporate from
the surface of the car.
❒inflate tyres to +0.5 bar above the
standard prescribed pressure and
check it periodically;
❒do not drain the engine cooling
system;
❒Any time the car is left inactive for
two weeks or more, operate the
air conditioning system with engine
idling for at least 5 minutes, setting
external air and with fan at maximum
speed. This operation will ensure a
suitable lubrication to minimise
possibility of damage to the
compressor when the system is
operated again.
IMPORTANT After turning the ignition
key to STOP, wait at least 1 minute
before disconnecting the electrical
supply to the battery.
162
STARTING AND DRIVING

❒inflate the tyre to the pressure
indicated in the “Wheels” paragraph
in the “Technical data” chapter. In
order to obtain a more precise
reading, check the pressure value on
pressure gauge B fig. 153 with the
compressor off;
❒if after five minutes it is still impossible
to reach at least 1.8 bar, disengage
the compressor from the valve and
power socket, then move the car
forwards by approx. ten metres
in order to distribute the sealing fluid
inside the tyre evenly, then repeat
the inflation operation;
❒if you still cannot obtain a pressure of
at least 1.8 bar within 5 minutes from
the compressor switching on, do
not drive off and contact an Alfa
Romeo Dealership;❒after having driven for about 10
minutes, stop and recheck the tyre
pressure; remember to engage
the handbrake;
❒if a pressure value of at least 1.8 bar
is detected, restore the correct
pressure (with the engine running and
the handbrake engaged), resume
driving and drive with great care to an
Alfa Romeo Dealership.
CHECKING AND
RESTORING TYRE
PRESSURE
The compressor can also be used to
check and, if necessary, adjust the tyre
pressure.
Release quick coupling A fig. 157 and
connect it directly to the valve of the
tyre to be inflated.
152A0K0518
153A0K0519
154A0K0520
155A0K0128
156A0K0521
171

SCHEDULED SERVICING PLAN
PETROL VERSIONS
Thousands of miles 9 18 27 36 45 54 63 72 81 90
Thousands of kilometres 15 30 45 60 75 90 105 120 135 150
Years12345678910
Check tyre condition/wear and adjust pressure, if
necessary; check “Fix&Go Automatic” kit recharge expiry
date (for versions/markets, where provided)●●●●●●●●●●
Check operation of lighting system (headlights, direction
indicators, hazard warning lights, luggage compartment,
passenger compartment, glove compartment, instrument
panel warning lights, etc.)●●●●●●●●●●
Check and, if necessary, top up fluid levels (engine
coolant, hydraulic clutch/brakes, windscreen washer,
battery, etc.)●●●●●●●●●●
Check exhaust emissions/smokiness●●●●●●●●●●
Use the diagnosis socket to check supply/engine
management system operation, emissions and, for
versions/markets, where provided, engine oil degradation●●●●●●●●●●
Visually inspect condition of: exterior bodywork,
underbody protection, pipes and hoses (exhaust, fuel
system, brakes), rubber elements (boots, sleeves, bushes,
etc.)●●●●●
Check windscreen/rear window wiper blade position/wear●●●●●
197
The checks listed in the Scheduled Servicing Plan, after reaching 120,000 km/8 years, must be cyclically repeated starting from
the first interval, thus following the same intervals as before.

Thousands of miles 9 18 27 36 45 54 63 72 81 90
Thousands of kilometres 15 30 45 60 75 90 105 120 135 150
Years12345678910
Check operation of windscreen wiper/washer system and
adjust jets, if necessary●●●●●
Check cleanliness of bonnet and luggage compartment
locks, as well as cleanliness and lubrication of linkages●●●●●
Check handbrake lever travel and adjust, if necessary●●●●●
Visually inspect condition and wear of front disc brake
pads and operation of pad wear indicator●●●●●●●●●●
Visually inspect condition and wear of rear disc brake pads
and operation of pad wear indicator (for versions/markets,
where provided)●●●●●●●●●●
Visually inspect condition and tensioning of accessory
drive belt(s) (for versions without automatic tensioner only)●
Visually inspect condition of toothed timing drive belt●
Check and, if necessary, top up the Alfa TCT control oil
level (for versions/markets, where provided) (1)●●●●●
Change engine oil and replace oil filter (1.4 Turbo Petrol
and 1.4 Turbo MultiAir versions) (2)●●●●●
(1) Check to be carried out every year for cars on the road in countries with particularly severe climates (cold countries).
(2) If the vehicle is used mainly around town or the annual km is less than 10,000 km, the engine oil and engine oil filter must be changed every year.
198
SERVICING AND MAINTENANCE

DIESEL VERSIONS
Thousands of miles 12 24 36 48 60 72 84 96 108 120
Thousands of kilometres 20 40 60 80 100 120 140 160 180 200
Years12345678910
Check tyre condition/wear and adjust pressure, if
necessary; check “Fix&Go Automatic” kit recharge expiry
date (for versions/markets, where provided)●●●●●●●●●●
Check operation of lighting system (headlights, direction
indicators, hazard warning lights, luggage compartment,
passenger compartment, glove compartment, instrument
panel warning lights, etc.)●●●●●●●●●●
Check and, if necessary, top up fluid levels (engine
coolant, hydraulic clutch/brakes, windscreen washer,
battery, etc.)●●●●●●●●●●
Check exhaust emissions/smokiness●●●●●●●●●●
Use the diagnosis socket to check supply/engine
management system operation, emissions and, for
versions/markets, where provided, engine oil degradation●●●●●●●●●●
Visually inspect condition of: exterior bodywork,
underbody protection, pipes and hoses (exhaust, fuel
system, brakes), rubber elements (boots, sleeves, bushes,
etc.)●●●●●
Check windscreen/rear window wiper blade position/wear●●●●●
Check operation of windscreen wiper/washer system and
adjust jets, if necessary●●●●●
201
The checks listed in the Scheduled Servicing Plan, after reaching 120,000 km/6 years, must be cyclically repeated starting from
the first interval, thus following the same intervals as before.

Thousands of miles 12 24 36 48 60 72 84 96 108 120
Thousands of kilometres 20 40 60 80 100 120 140 160 180 200
Years12345678910
Check cleanliness of bonnet and luggage compartment
locks, as well as cleanliness and lubrication of linkages●●●●●
Check handbrake lever travel and adjust, if necessary●●●●●
Visually inspect condition and wear of front disc brake
pads and operation of pad wear indicator●●●●●●●●●●
Visually inspect condition and wear of rear disc brake pads
and operation of pad wear indicator (for versions/markets,
where provided)●●●●●●●●●●
Visually inspect condition and tensioning of accessory
drive belt(s) (for versions without automatic tensioner only)●●
Check and, if necessary, top up the Alfa TCT control oil
level (for versions/markets, where provided) (1)●
Change engine oil and replace oil filter (2) (3)
(1) Check to be carried out every year for cars on the road in countries with particularly severe climates (cold countries).
(2) The actual interval for changing engine oil and replacing the engine oil filter depends on the vehicle usage conditions and is signalled by the warning light or
message in the instrument panel. Anyway, it must never exceed 2 years.
(3) If the car is mainly used in towns and cities, change the engine oil and filter every year.
202
SERVICING AND MAINTENANCE●●●●