2016 Alfa Romeo Giulietta check engine light

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

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

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.

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●●●●

PERIODIC CHECKS
Every 1,000 km or before long
journeys, check and, if necessary, top
up the following:
❒engine coolant, brake fluid and
windscreen washer fluid level;
❒tyre inflation pressure and condition;
❒operation of lighting system
(headlamps, direction indicators,
hazard warning lights, etc.);
❒operation of window washer/wiper
system and positioning/wear of
windscreen/rear window wiper
blades
Check and top up, if required, the
engine oil level every 3,000 km.
HEAVY-DUTY USE OF
THE CAR
If the car is used mainly under one of
the following conditions:
❒towing a trailer or caravan;
❒dusty roads;
❒short, repeated journeys (less than
7-8 km) at sub-zero outside
temperatures;
❒engine often idling or driving long
distances at low speeds or long
periods of idleness;
the following checks must be carried
out more often than indicated in the
Scheduled Servicing Plan:
❒check front disc brake pad
conditions and wear;
❒check cleanliness of bonnet and boot
locks, cleanliness and lubrication of
linkage;
❒visually inspect conditions of: engine,
gearbox, transmission, pipes and
hoses (exhaust - fuel system -
brakes) and rubber elements (boots -
sleeves - bushes - etc.);
❒check battery charge and battery
fluid level (electrolyte);
❒visually inspect condition of the
accessory drive belts;❒check and, if necessary, change
engine oil and replace oil filter;
❒check and, if necessary, replace
pollen filter;
❒check and, if necessary, replace air
cleaner.
204
SERVICING AND MAINTENANCE