coolant temperature Alfa Romeo Giulia 2018 Owner's Manual

A/C Compressor
Push the A/C button to activate or
deactivate the A/C compressor (indicator
illuminated when activated). The A/C
compressor will remain off even after the
engine has stopped.
When the A/C compressor is turned off,
the system deactivates air recirculation
to prevent the windows from fogging up.
If the climate control system can
maintain the temperature, with the A/C
turned off, the AUTO feature will remain
on and the AUTO button indicator light
will not switch off.
To restore automatic control of the A/C
compressor, push the A/C button or the
AUTO button. With the A/C compressor
off, the air speed can be set manually
using the Air Speed Adjustment Knob.
When the A/C compressor is on, and the
engine is running, air speed cannot be
lower than the minimum speed (only one
indicator light is lit).
Note:
When the A/C is off the Climate
Control system can not produce air that
is colder than the current outside
temperature. Under certain environmental
conditions, windows could fog up rapidly,
since the air is not dehumidified.
Front Defroster And MAX-DEF
Function
Push the Front Defroster button(indicator illuminated) to defrost the
windshield and side windows.
While in MAX-DEF function, the air
conditioner will:
Activate the air conditioner
compressor when the weather allows
Turn air recirculation off
Set the maximum air temperature (HI)
on both the driver and passenger side
Activate a blower speed based on the
temperature of the engine coolant
Adjust the air flow towards the
windshield and front side windows
Activate the Rear Window Defroster
Display the fan speed (indicators
illuminated) and current air distribution
setting
Note: The MAX-DEF function remains
active for approximately three minutes
once the engine coolant reaches the
proper temperature.
When the function is on, AUTO mode will
deactivate. The only manual operations
possible are adjusting blower speed and
turning off the Rear Window Defroster.
Pushing the
button switches off the
MAX-DEF function.
Rear Defroster
Push the Rear Defrosterbutton to
activate (indicators illuminated) the Rear
Defroster.
The Rear Defroster will turn off after
20 minutes or once the engine is turned
off. To reactive the Rear Defroster, push
the Rear Defroster
button.
Note: To avoid damage, do not apply
stickers over the interior heating
filaments of the Rear Defroster.
Humidity Sensor
The Humidity Sensor helps to prevent the
windows from fogging up. The AUTO
function (indicator illuminated) must be
on for the Humidity Sensor to function.
When outside temperature is low, the
system may turn the compressor on and
turn air recirculation off for safer driving.
Switching Off/On The Climate Control
System
Switching Off The Climate Control
System
Rotate the Air Speed Adjustment Knob
completely counterclockwise to turn off
the Climate Control System.
With the air conditioner off:
Air recirculation is on
The A/C compressor is off
The fan is off
The heated rear window can be
activated/deactivated
46
GETTING TO KNOW YOUR VEHICLE

Caution!
If the LOW ENGINE OIL PRESSURE symbol switches on when driving, stop the engine immediately and contact an authorized dealer.
SymbolWhat It Means What To Do
ENGINE TEMPERATURE WARNING LIGHT
This telltale warns of an overheated engine condition.
If the engine coolant temperature is too high, this
indicator will illuminate and a single chime will sound. If
the temperature reaches the upper limit, a continuous
chime will be sound for 4 minutes or until the engine is
allowed to cool whichever comes first.In normal driving conditions
: stop the vehicle, turn off the
engine and check that the coolant level in the reservoir is
not below the MIN mark. In this case, 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 itself. Also check
visually for any fluid leaks. Contact an authorized dealer
if the telltale comes on when the engine is started again.
If the vehicle is used under demanding conditions (e.g. in
high-performance driving): slow down and, if the telltale
stays on, stop the vehicle. Stop for two or three minutes
with the engine running and slightly accelerated to
facilitate better coolant circulation, then turn the engine
off. Check that the coolant level is correct as described
above.
POWER STEERING FAILURE
If the telltale remains on, you could not have steering
assistance and the effort required to operate the steering
wheel could be increased; steering is, however, possible. Contact an authorized dealer as soon as possible.
75

If the vehicle has a discharged battery,
booster cables may be used to obtain a
start from a booster battery or the battery
in another vehicle. This type of start can be
dangerous if done improperly. Refer to
“Jump Starting” in “In Case Of Emergency”
for further information.
Caution!
To prevent damage to the starter, do not
continuously crank the engine for more than
25 seconds at a time. Wait 60 seconds
before trying again.
After Starting — Warming Up The
Engine
Proceed as follows:
Travel slowly, letting the engine run at
a reduced RPM, without accelerating
suddenly.
It is recommended to wait until the
digital engine coolant temperature
indicator starts to rise for maximum
performance.
Stopping The Engine
To stop the engine, proceed as follows:
1. Park the vehicle in a position that is
not dangerous for oncoming traffic.
2. Engage the PARK (P) mode.
3. With engine idling, push the
START/STOP button on the steering
wheel to STOP the engine.
Note: Do not leave the ignition in ON
mode when the engine is off.
To shut off the engine with vehicle speed
greater than 5 mph (8 km/h), you must
push and hold the ignition or push the
START/STOP button three times
consecutively within a few seconds. The
engine will shut down, and the ignition will
be placed in the ON mode
With the keyless ignition system, it is
possible to go away from the vehicle
taking the key fob with you, without the
engine switching off. The vehicle will
inform about the absence of the key on
board, only if the doors are closed.
Stopping the engine (cycling from the ON
to the STOP position) the accessories are
still powered for about three minutes, or
until a door is opened. When the ignition is in the STOP/OFF
mode, the window switches remain active
for three minutes. Opening a front door
will cancel this function.
After severe driving, idle the engine to
allow the temperature inside the engine
compartment to cool before shutting off
the engine.
Turbocharger Cool Down
It is recommended before switching the
vehicle off, to keep the engine idling for a
few minutes so that the turbocharger can
be suitably lubricated. This procedure is
particularly recommended after severe
driving.
After a full load operation, keep the
engine idling for three to five minutes
before switching it off.
This time allows the lubricating oil and
the engine coolant to eliminate the
excessive heat from combustion
chamber, bearings, inner components and
turbocharger.
134
STARTING AND OPERATING

ENGINE OVERHEATING
Engine overheating may occur in
situations of extreme environmental
temperatures, frequent engine
stops/starts, or driving in heavy traffic.
If the engine becomes overheated, the
Engine Temperature Warning Light in the
instrument cluster will illuminate along
with a dedicated message. Refer to
"Warning Lights And Messages" in the
"Getting To Know Your Instrument Panel"
for more information.
In any of the following situations, you can
reduce the potential for overheating by
taking the appropriate action.
On the highways — slow down.
In city traffic — while stopped, place
the transmission in NEUTRAL, but do not
increase engine idle speed.
Note: There are steps that you can take
to slow down an impending overheat
condition:
If your air conditioner (A/C) is on, turn
it off. The A/C system adds heat to the
engine cooling system and turning the
A/C off can help remove this heat.
You can also turn the temperature
control to maximum heat, the mode
control to floor and the blower control to
high. This allows the heater core to act
as a supplement to the radiator and aids
in removing heat from the engine cooling
system.
Warning!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from
your radiator. If you see or hear steam
coming from under the hood, do not open the
hood until the radiator has had time to cool.
Never try to open a cooling system pressure
cap when the radiator or coolant bottle is
hot.
Caution!
Driving with a hot cooling system could
damage your vehicle. If temperature gauge
reads “H”, pull over and stop the vehicle. Idle
the vehicle with the air conditioner turned
off until the pointer drops back into the
normal range. If the pointer remains on the
“H”, turn the engine off immediately, and call
for service.
If Steam Is Coming From The Engine
Compartment
Do not go near the front of the vehicle.
Stop the engine. Wait until the steam
dissipates. Then, open the hood and start
the engine.
If Neither Coolant Nor Steam Is
Escaping
Open the hood and idle the engine until it
cools.
Note:
If the cooling fan does not operate
while the engine is running, the engine
temperature will increase. Stop the
engine and contact your authorized
dealer.
If the engine continues to overheat or
frequently overheats, have the cooling
system inspected. The engine could be
seriously damaged unless repairs are
made. Contact your authorized dealer.
189

SCHEDULED SERVICING
Correct servicing is crucial for
guaranteeing a long life for the vehicle
under the best conditions.
For this reason, Alfa Romeo has planned
a series of checks and services for your
vehicle at fixed intervals based on
distance and time, as described in the
Scheduled Servicing Plan.
Before each service, it is always
necessary to carefully follow the
instructions in the Scheduled Servicing
Plan (e.g. periodically check level of
fluids, tire pressure, etc.).
Scheduled Servicing is offered by an
authorized dealer according to a set time
schedule. If, during each operation, in
addition to the ones scheduled, the need
arises for further replacements or
repairs, these may be carried out with the
owner’s explicit consent only.
Note:Scheduled Servicing intervals are
required by the Manufacturer. Failure to
have them carried out may invalidate the
New Vehicle Limited Warranty.
You are advised to inform your
authorized dealer of any small operating
irregularities without waiting for the next
service.
Periodic Checks
Every month or every 600miles
( 1,000 km) or before long trips check
and, if necessary, top off:
Engine coolant level.
Brake fluid level (if insufficient, see an
authorized dealer as soon as possible).
Windshield washer fluid level.
Tire inflation pressure and condition.
Operation of lighting system
(headlights, direction indicators, hazard
warning lights, etc.).
Operation of windshield
washing/wiping system and
positioning/wear of wiper blades.
Every 2,000 miles ( 3,000km), check and
top off if required:
Engine oil level.
Heavy Usage Of The Vehicle
If the vehicle is used under one of the
following conditions:
Dusty roads.
Short, repeated journeys less than
4 miles (7-8 km) at sub-zero outside
temperatures.
Engine often idling or driving long
distances at low speeds or long periods
of inactivity.
In the event of a long period of inactivity.
The following checks must be carried out
more often than indicated in the
Scheduled Servicing Plan:
Check cleanliness of hood and trunk
locks, cleanliness and lubrication of
linkage.
Visually inspect conditions of: engine,
transmission, pipes and hoses
(exhaust/fuel system/brakes) and rubber
elements (sleeves/bushes, etc.).
Check battery charge and battery fluid
level (electrolyte).
Visually inspect conditions of the
accessory drive belts.
Check and, if necessary, change engine
oil and replace oil filter.
Check and, if necessary, replace cabin
air filter.
Check and, if necessary, replace air
cleaner.
Severe Duty All Models
Change Engine Oil at 4,000 miles
(6,500 km) if the vehicle is operated in a
dusty and off-road environment or is
operated predominately at idle or only
very low engine RPM’s. This type of
vehicle use is considered Severe Duty.
194
SERVICING AND MAINTENANCE

Engine Oil
The engine oil level can be seen on the
instrument cluster display every time the
engine is started, or on the Information and
Entertainment system display by
activating on the main menu (MENU
button) the following functions in
sequence: “Apps”; “My Car” and “Oil Level”.
Check on the display using the 6 notches
that the oil level is between the MIN and
MAX level: 1 notch MIN level, 6 notches
MAX level.
If the oil level is close to or below the MIN
mark, add oil gradually through the filler,
(refer to “Top-Up And Oil Level Indication
Update On Display” in this section)
considering that each notch shown on the
display corresponds to approximately
8.8floz(250ml).
The oil level can also be checked manually.
Caution!
Make sure not to add too much oil when
topping off the engine. Engine oil in excess
may damage the engine. Have the vehicle
checked. Never exceed the MAX level when
topping off engine oil. It is advisable to
check the oil level in intermediate steps
using the oil dipstick.
The oil level is not refreshed immediately on
the display after topping off. Consequently,
wait for the oil level to be refreshed on the
display and follow the procedure below.
Note:Always reinstall the oil cap and
tighten to proper torque whenever it is
removed to add oil to engine. Never run
the engine with cap removed this could
cause oil to leak from engine.
Manual oil level checking procedure
Check that the oil level is between the
MIN and MAX marks on dipstick, clean it
with a lint-free cloth and reinsert it.
Extract the dipstick again and check that
the level is between the MIN and MAX
marks.
Top-Up And Oil Level Indication Update
On Display
If a engine oil top-off is needed, in order
to ensure the correct indication of the oil
level on the display, leave the vehicle on
flat ground with the engine running for
approximately 5 minutes (temperature
higher than 176°F (80°C)) and shut the
engine off then proceed with the process
below:
Wait for five minutes, turn the ignition
to the ON mode without starting the
engine and wait for a few seconds.
Note: If you have added the specified
amount of oil and the indicator is not
reading “Full”, please contact you
authorized dealer.
Warning!
If the engine oil is being topped up, wait for
the engine to cool down before loosening the
filler cap, particularly for vehicles with
aluminium cap (if equipped). WARNING: risk
of burns!
Caution!
The oil level must never exceed the MAX
mark.
If the MAX mark is exceeded MAX (last
notch on the right turns red) after the fill-up,
go to your authorized dealer as soon as
possible to have the oil in excess removed.
Do not add oil with specifications
different from those of the oil already in the
engine.
Used engine oil and oil filters contain
substances which are harmful to the
environment. To change the oil and filters,
we advise you to contact your authorized
dealer.
Engine Coolant Fluid
If the level is too low, unscrew the cap of
reservoir and add the fluid described in
the "Technical Specifications" chapter.
199

Then, check that the nozzle holes are not
clogged; use a needle to unblock them if
necessary.
Exhaust System
Adequate maintenance of the engine
exhaust system represents the best
protection against leaks of carbon
monoxide into the passenger
compartment.
If an unusual noise from the exhaust or
the presence of smoke in the passenger
compartment is identified, or if the
underbody or rear section of the vehicle
have been damaged, have the entire
exhaust system and adjoining bodywork
areas checked at your authorized dealer
to identify any components which are
broken, damaged, worn or have moved
from their correct fitting position.Open welding or loose connections may
permit exhaust gas to enter the
passenger compartment.
Have the exhaust system checked every
time the vehicle is raised. Replace the
components where necessary (for these
operations, contact an authorized
dealer).
In normal operating conditions, the
catalytic converter does not require
maintenance. To ensure that it operates
correctly, however, and prevent it from
getting damaged, it is extremely
important that the engine operates
perfectly.
To minimize the risk of damaging the
catalytic converter, proceed as follows:
Do not stop the engine or deactivate
the ignition with gear engaged and
vehicle in motion.
Do not attempt to start the engine by
bump starting.
Do not persist in using the vehicle if
idling is very irregular or the operating
conditions are very notably irregular.
Warning!
Exhaust gases can injure or kill. They
contain carbon monoxide (CO), which is
colorless and odorless. Breathing it can
make you unconscious and can eventually
poison you.
A hot exhaust system can start a fire if
you park over materials that can burn. Such
materials might be grass or leaves coming
into contact with your exhaust system.
Do not park or operate your vehicle in areas
where your exhaust system can contact
anything that can burn.
Cooling System
Warning!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from
your radiator. If you see or hear steam
coming from under the hood, do not open the
hood until the radiator has had time to cool.
Never open a cooling system pressure cap
when the radiator or coolant bottle is hot.
Keep hands, tools, clothing, and jewelry
away from the radiator cooling fan when the
hood is raised. The fan starts automatically
and may start at any time, whether the
engine is running or not.
When working near the radiator cooling
fan, disconnect the fan motor lead or turn
the ignition to the OFF mode. The fan is
temperature controlled and can start at any
time the ignition is in the ON mode.
09046S0003EMWindshield Washers
1 — Washer Nozzles
205

Coolant Check
Your vehicle has two cooling systems and
they both need to be checked to ensure
they are at proper fill levels. Refer to the
“Engine Compartment” section for the
locations.
Check the engine coolant and intercooler
coolant level every oil change or before
long trips.
If there are impurities in the engine
coolant, the system must be drained,
flushed and refilled: contact an
authorized dealer.
Check the front part of the condenser to
check for any build-up of insects, leaves
or other debris. Should it be dirty, clean it
by spraying delicately with water.
Check the hoses of the engine/
intercooler cooling system to ensure that
the rubber has not deteriorated and that
there are no cracks, tears, cuts or
obstructions in the expansion tank side
and radiator side connectors. Should
there be any doubt regarding leaks from
the system (e.g. if frequent top ups are
required), have the seal checked at an
authorized dealer.
With the engine off and at normal
operating temperature, check that the
cooling system radiator cap is closed
properly.
Warning!
Do not open hot engine cooling system.
Never add engine coolant (antifreeze) when
the engine is overheated. Do not loosen or
remove the cap to cool an overheated
engine. Heat causes pressure to build up in
the cooling system. To prevent scalding or
injury, do not remove the pressure cap while
the system is hot or under pressure.
Do not use a pressure cap other than the
one specified for your vehicle. Personal
injury or engine damage may result.
Note: Before removing the coolant
reservoir cap, wait for the system to cool
down.
Topping Up / Draining / Flushing The
Engine/Intercooler Coolant
If the engine coolant (antifreeze) is dirty,
have cleaning and flushing carried out at
an authorized dealer.
See the "Maintenance Plan" for the
correct servicing intervals.
Note:
For topping up, use a fluid with the
same characteristics as those indicated
in the "Fluids And Lubricants" table (see
"Technical Specifications" chapter).
Do not use pure water, alcohol-based
coolants, corrosions inhibitors or
additional anti-rust products because they may be incompatible with the
engine coolant and cause the clogging of
the radiator. The use of propylene
glycol-based coolant is also not
recommended.
Engine Cooling/Intercooler System Cap
To prevent loss of engine coolant, make
sure that the expansion tank cap is
closed. If it is open, screw it completely
until you reach/hear the click.
Periodically check the cap and clean it
from any foreign bodies that may have
deposited on the external surface.
Warning!
Never add coolant with the engine hot or
overheated.
Do not attempt to cool an overheated
engine by loosening or removing the cap.
The heat causes a considerable increase in
pressure in the cooling system.
To prevent damage to the engine, only use
the engine cooling circuit caps provided.
Disposal Of Used Coolant
Disposal of engine/intercooler coolant is
subject to legal requirements: contact
the appropriate body to determine local
regulations.
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SERVICING AND MAINTENANCE