2012 Alfa Romeo Giulietta check engine

201
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
2 If the car is mainly used in cities or travels less than 10,000 km a year, change the engine oil and filter every 12
months.
18 36 54 72 90 108
30 60 90 120 150 180
24 48 72 96 120 144
●●● ●●●
●
●
●●● ●●●
●●●
●●● ●●●
●●●
●●● ●●●
1 For 1.4 Turbo Petrol and 1.4 Turbo Multi Air versions, in order to guarantee correct operation and prevent seri-
ous damage to the engine, it is essential to observe the following:
- only use spark plugs specifically certified for Turbo Petrol engines; all spark plugs should be of the same type and brand
(see the “Engine” paragraph in the “Technical Specifications” chapter);
- adhere strictly to the spark plug replacement intervals detailed in the Scheduled Servicing Plan;
- You are advised to go to Alfa Romeo Authorized Services to have the spare plugs replaced.
Thousands of miles
Thousands of km
Months
Check engine control system operation (using diagnosis socket)
Replace accessory drive belt(s)
Replace toothed timing drive belt (*)
Replace spark plugs 1
Replace air filter cartridge
Change engine oil and oil filter (or every 24 months) 2
Change brake fluid (or every 24 months)
Change pollen filter (or every 15 months)
(*) Regardless of the distance covered, the timing belt must be changed every 4 years for particularly demanding use (cold climates, city driving,
long periods of idling) or at least every 5 years.

21 42 63 84 105
35 70 105 140 175
24 48 72 96 120
●● ●●●
●● ●●●
●● ●●●
●● ●●●
●● ●●●
●● ●●●
●● ●●●
●● ●●●
●● ●●●
●● ●●●
●●
●●
202
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
1750 Turbo Petrol VERSIONS
Thousands of miles
Thousands of km
Months
Check tyre conditions/wear and adjust pressure if required
Check lighting system operation (headlights, direction indicators, hazard warning lights, passenger
compartment lights, boot lights, instrument panel warning lights, etc.)
Check windscreen wiper/washer operation
Check the position/wear of the windscreen/rear window wiper blades
Check condition and wear of front disc brake pads and operation of pad wear indicator
Check rear disc brake pad condition and wear
Conditions and visual check: bodywork exterior, underbody protection,
pipes and hoses (exhaust - fuel system - braking system),
rubber elements (boots - sleeves - bushes - etc.)
Check cleanness of locks, bonnet and boot and lever cleanness and lubrication
Check and top up, if required, fluid levels
(engine coolant, brake/hydraulic clutch fluid, windscreen washer fluid, battery fluid, etc)
Check the handbrake lever travel and adjust it, if necessary
Visually inspect the condition of the auxiliary drive belt
Visually inspect the condition of toothed timing belt

203
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
(*) Regardless of the distance covered, the timing belt must be changed every four years for particularly demanding use (cold climates, city driving,
long periods of idling) or at least every five years in all other cases.
(**) The engine oil and the oil filter must be changed when the instrument panel warning light comes on (see “Warning lights and messages” in “Get-
ting to know your car” chapter) or in any case every 12 months.
Thousands of miles
Thousands of km
Months
Check exhaust emissions
Check battery charge status and possibly recharge
Check engine control system operation (via diagnostic socket)
Replace accessory drive belt(s)
Replace toothed timing belt (*)
Replace spark plugs
Replace air filter cartridge
Change engine oil and oil filter (or every 12 months) (**)
Change brake fluid (or every 24 months)
Change pollen filter (or every 15 months)21 42 63 84 105
35 70 105 140 175
24 48 72 96 120
●● ●● ●
●● ●● ●
●● ●● ●
●
●
●●
●●
●●
●● ●● ●

204
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
Thousands of miles
Thousands of km
Months
Check tyre condition/wear and adjust pressure if required
Check operation of lighting system (headlights, direction indicators, hazard warning lights,
luggage compartment, passenger compartment, instrument panel warning lights, etc.)
Check windscreen wiper/washer operation
Check the position/wear of the windscreen/rear window wiper blades
Check condition and wear of front disc brake pads and operation of pad wear indicator
Check rear disc brake pad condition and wear
Conditions and visual check: bodywork exterior, underbody protection,
pipes and hoses (exhaust - fuel system - braking system),
rubber elements (boots - sleeves - bushes - etc.)
Check cleanliness of bonnet and boot locks, as well as cleanliness and lubrication of linkages
Check and top up, if required, fluid levels
(engine coolant, brake/hydraulic clutch fluid, windscreen washer fluid, battery fluid, etc)
Check the handbrake lever travel and adjust it, if necessary
Check exhaust fumes/emissions
Check battery charge status and possibly recharge
Visually inspect the condition of the auxiliary drive belt
Check engine control system operation (via diagnostic socket)21 42 63 84 105
35 70 105 140 175
24 48 72 96 120
●● ● ●●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●● ●● ●
●●
●● ●● ●
Diesel VERSIONS

206
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
REGULAR CHECKS
Every 1,000 km or before long journeys, check and top up the fol-
lowing if necessary:
❍engine coolant level, brake fluid and windscreen washer fluid
❍tyre pressure and condition;
❍operation of lighting system (headlights, direction indicators,
hazard lights, etc.);
❍operation of the windscreen wiper/washer system, position
and wear of windscreen/rear window wiper blades;
Check and top up, if required, the engine oil level every 3,000 km.
DEMANDING USE OF THE CAR
If you use the car mainly under one of the following conditions:
❍trailer or caravan towing;
❍dusty roads;
❍short (less than 7-8 km) and repeated journeys in sub-zero
temperatures;
❍frequent engine idling, travelling long distances at low speeds
or long term inactivity;
perform the following inspections more frequently than shown on
the Scheduled Servicing Plan:
❍check front disc brake pad condition and wear;
❍check cleanliness of bonnet and boot locks, as well as cleanli-
ness and lubrication of linkages;
❍visually inspect the conditions of: engine, gearbox, transmis-
sion, pipes and tubes (exhaust - fuel - brakes), rubber parts
(boots, sleeves, bushes, etc.);
❍check battery charge and liquid level (electrolyte);
❍visually inspect the condition of auxiliary drive belts;
❍check and if necessary change engine oil and oil filter;
❍check pollen filter and replace it, if required;
❍check air filter and replace, if required.

207
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
CHECKING LEVELS
Be careful not to confuse the various types of flu-
ids while topping up: they are all incompatible with
each other and may severely damage your car.
Never smoke while working in the engine com-
partment: flammable gases may be present. Risk
of fire.
Proceed very carefully inside the engine compart-
ment when the engine is hot: risk of burns. Re-
member that the fan may start up if the engine is
hot: this could injure you. Make sure that scarves, ties and
other loose fitting garments do not get caught up in mov-
ing parts.

ENGINE OIL
Check that the oil level is between the MIN and MAX references
on the dipstick A-fig. 161-162-163-164.
If the oil level is near or under the MIN line, add oil through the
filler A until it reaches the MAX line.
Do not add oil with different characteristics to those
of the existing engine oil.
Used engine oil and the replaced oil filter contain
substances that are harmful to the environment.
We recommend having the oil and oil filter re-
placed by Alfa Romeo Authorized Services.
ENGINE COOLANT
If the level is too low, undo reservoir cap C-fig. 161-162-163-164
and add the fluid described in “Technical Specifications” chapter.
PARAFLUUPanti-freeze is used in the engine cool-
ing system. Use the same fluid as in the cooling
system when topping up. PARAFLU
UPmay not be
mixed with any other type of fluid. If this accidentally
occurs, do not start the engine. Contact Alfa Romeo
Authorized Services.
The engine cooling system is pressurised. If the cap
needs replacing, do so with another original or the
effectiveness of the system may be compromised.
Do not remove the cap from the reservoir when the en-
gine is hot: you may get burned
212
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
The oil level must never exceed the MAX line.
Engine oil consumption
The maximum engine oil consumption is usually 400 grams every
1000 km. During the initial period of use the engine oil consumption
conditions should be considered as having stabilised after the first
5000 - 6000 km.
If the engine oil is being topped up, wait for the
engine to cool down before loosening the filler plug,
particularly for vehicles with aluminium plug (for
versions/markets where provided). CAUTION: risk of burns!

213
GETTING
TO KNOW
YOUR CAR
SAFETY
STARTING
AND DRIVING
IN AN
EMERGENCY
SERVICING AND
MAINTENANCE
TECHNICAL
SPECIFICATIONS
CONTENTS
BRAKE FLUID
Check that the fluid is at the maximum level. If the level is too
low undo reservoir cap F-fig. 161-162-163-164 and add the flu-
id described in the “Technical Specifications” chapter.
Prevent brake fluid, which is highly corrosive, from
coming into contact with painted parts. Should this
occur, immediately wash with water.
WINDSCREEN/REAR WINDOW/
HEADLIGHT WASHING FLUID
If the level is too low undo reservoir cap D-fig. 161-162-163-
164 and add the fluid described in the “Technical Specifications”
chapter.
IMPORTANT The headlight washer system will not work when
the liquid level is low although the windscreen/rear window wash-
er will still work. For versions/markets where provided (see pre-
vious pages), a reference line E-fig. 161, 162, 163, 164 is pro-
vided: ONLY the windscreen/rear window washer will work un-
der this line.
Some commercial windscreen washer additives are
flammable. The engine compartment contains hot
parts which could cause a fire if they come into con-
tact with these additives.
Brake fluid is poisonous and highly corrosive. In
the event of accidental contact, wash the parts im-
mediately with water and neutral soap, then rinse
with plenty of water. In case of swallowing, immediately
call a doctor.
The symbol πon the container indicates a syn-
thetic brake fluid, which is different from a min-
eral fluid. Using a mineral-type fluid will damage
the special rubber seals of the braking system beyond re-
pair.
Do not travel if the windscreen washer reservoir is
empty: using the windscreen washer is essential
for improving visibility. Repeated operation of the
system when it is empty could damage or rapidly deteri-
orate some of its parts