engine ALFA ROMEO STELVIO 2023 Owners Manual

SERVICING AND MAINTENANCE

212

(Continued)
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 an 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, 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 use the vehicle if irregular idling or
operating conditions are experienced.
COOLING SYSTEM
Coolant Check
Your vehicle has two cooling systems and both
need to be checked to ensure they are at proper
fill levels

Ú
page 204.
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 for any
build-up of insects, leaves or other debris. Should
it be dirty, clean 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!
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.
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 position. The fan is
temperature controlled and can start at any
time the ignition is in the ON position.
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.
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213

(Continued)

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.
For the correct servicing intervals

Ú
page 200.

NOTE:

For topping off, and proper coolant specifi-
cations
Ú
page 252.
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.
Use care when filling under hood fluids such as
engine oil, windshield washer fluid, antifreeze
etc. to minimize spillage onto top of engine.
Any excess fluid that is spilled onto the top of
the engine should be removed using
compressed air or absorbent cloth. 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.
Disposal of Used Coolant
Disposal of engine/intercooler coolant is subject
to legal requirements. Contact the appropriate
body to determine local regulations.

NOTE:

To prevent the fluid from being ingested by
children or animals, do not keep it in open
containers or pour it on the ground. If ingested,
contact a doctor immediately. Eliminate any
traces of fluid from the ground immediately.
When the vehicle stops after a short trip,
steam may be seen coming out from the front
of the hood. This is a normal phenomenon
which is due to the presence of rain, snow or a
lot of moisture on the surface of the radiator.
With engine and system cold, do not top up
with coolant beyond the maximum level
indicated on the reservoir in the engine
compartment.
BRAKING SYSTEM
In order to guarantee the efficiency of the braking
system, periodically check its components; for
this operation, contact an authorized dealer.
For the correct servicing intervals

Ú
page 200.

NOTE:
Driving with your foot resting on the brake pedal
may compromise its efficiency, increasing the risk
of accidents. When driving, never keep your foot
on the brake pedal and don’t put unnecessary
strain on it to prevent the brakes from over
-
heating. Excess pad wear may cause damage to
the braking system.
When an insufficient oil level is detected,
contact an authorized dealer to have the
system checked.
Always keep the cap of the brake fluid reservoir
(in the engine compartment) completely
closed.
Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or
engine damage may result.
WARNING!
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.
WARNING!
Use only manufacturer's recommended
brake fluid
Ú
page 252. Using the wrong
type of brake fluid can severely damage your
brake system and/or impair its performance.
The proper type of brake fluid for your vehicle
is also identified on the original factory
installed hydraulic master cylinder reservoir.
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AUTOMATIC TRANSMISSION
Use only a transmission oil with the character-
istics indicated
Ú
page 252.
Special Additives
Do not use any type of additive with the
automatic transmission oil. The automatic
transmission oil is a product designed especially
for this vehicle and its performance may be
compromised through the use of further
additives. Frequency of Oil Changes
In normal vehicle operating conditions, it is not
necessary to change the transmission oil.
REPLACING THE BATTERY
If necessary, replace the battery with another
battery with the same specifications. It is advised
to contact an authorized dealer for replacement.

NOTE:
Each time the 12 Volt battery is reconnected,
cycle the steering wheel all the way to the left.
Then cycle the steering wheel all the way to the
right to allow the steering angle sensor to learn
the steering angle thresholds.
Follow the battery manufacturer's instructions for
maintenance.

NOTE:
It will not be possible to open the liftgate with a
key or by pushing the button in the passenger
compartment when the battery is disconnected. Always position the manual liftgate opening strap
on the liftgate lock before disconnecting the
battery. The procedure is described in the
“Liftgate Emergency Opening”

Ú
page 62.
FUSES
General Information
The fuses protect electrical systems against
excessive current.
When a device does not work, you must check the
electrical circuit inside of the fuse for a break/
melt.
Also, please be aware that using power outlets for
extended periods of time with the engine off may
result in vehicle battery discharge.
Blade Fuses
To avoid contamination from foreign matter
or moisture, use only new brake fluid or fluid
that has been in a tightly closed container.
Keep the master cylinder reservoir cap
secured at all times. Brake fluid in an open
container absorbs moisture from the air
resulting in a lower boiling point. This may
cause it to boil unexpectedly during hard or
prolonged braking, resulting in sudden brake
failure. This could result in a collision.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts,
causing the brake fluid to catch fire. Brake
fluid can also damage painted and vinyl
surfaces, care should be taken to avoid its
contact with these surfaces.
Do not allow petroleum-based fluid to
contaminate the brake fluid. Brake seal
components could be damaged, causing
partial or complete brake failure. This could
result in a collision.
WARNING! CAUTION!

Do not use chemical flushes in your
transmission as the chemicals can damage your
transmission components. Such damage is not
covered by the New Vehicle Limited Warranty.

CAUTION!
If a transmission fluid leak occurs, visit an
authorized dealer immediately. Severe
transmission damage may occur. An
authorized dealer has the proper tools to
adjust the fluid level accurately.
1 — Electrical Circuit
2 — Blade Fuse With Good Electrical Circuit
3 — Blade Fuse With Bad Electrical Circuit
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215

J-CASE Fuse
Fuse Extracting Pliers
To replace a fuse, use the pliers hooked to the
fuse box.
Fuse Box Grab the pliers from the upper tabs, press them,
and extract the pliers pulling upwards.
The pliers have two different ends, both of which
are specifically designed to remove the different
types of fuses present in the vehicle:
Fuse Extracting Pliers
After use, return the pliers to their proper position
using the following procedures:
Grasp the pliers from the upper tabs and insert
them into their housing.
Push downward on the pliers into their housing
until they click into place.
1 — Electrical Circuit
2 — Case Fuse With Good Electrical Circuit
3 — Case Fuse With Bad Electrical Circuit
1 — MINI fuse
2 — J-CASE fuse
WARNING!
When replacing a blown fuse, always use an
appropriate replacement fuse with the same
amp rating as the original fuse. Never
replace a fuse with another fuse of higher
amp rating. Never replace a blown fuse with
metal wires or any other material. Do not
place a fuse inside a circuit breaker cavity or
vice versa. Failure to use proper fuses may
result in serious personal injury, fire and/or
property damage.
Before replacing a fuse, make sure that the
ignition is off and that all the other services
are switched off and/or disengaged.
If the replaced fuse blows again, contact an
authorized dealer.
If a general protection fuse for safety
systems (air bag system, braking system),
power unit systems (engine system,
transmission system) or steering system
blows, contact an authorized dealer.
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221

Replacement Bulbs
*Only for basic version headlight with halogen main beam/dipped beam headlights
Replacing Exterior Bulbs

NOTE:
Only replace bulbs when the engine is off.
Also ensure that the engine is cold, to prevent the
risk of burns.
Front Light Cluster
Direction Indicators
Proceed with the following directions to change
bulbs:
1. Operating inside the engine compartment, locate the protective cover. Protective Cover Location
2. Remove protective cover. Protective Cover
Light bulbsTypePower
Front direction indicators*
PY24W24W
Rear Fog lights * H1155 W
Main beam headlights, front side lights/daylight running lights (DRL)* H1555/15W
Dipped beam headlights* H755W
Main beam/dipped beam headlights (Xenon gas discharge) D3S35W
Sun visor light 1.5CP2.1W
Glove compartment light W5W4W
Liftgate light W5W5W
Puddle lights (under door panel) W5W5W
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231

Tire Pressures For High Speed Operation
The manufacturer advocates driving at safe
speeds and within posted speed limits. Where
speed limits or conditions are such that the
vehicle can be driven at high speeds, maintaining
correct tire inflation pressure is very important.
Increased tire pressure and reduced vehicle
loading may be required for high-speed vehicle
operation. Refer to an authorized tire dealer or
original equipment vehicle dealer for
recommended safe operating speeds, loading
and cold tire inflation pressures.Recommended Cold Tire Inflation Pressures
For vehicle speeds below 100 mph (160 km/h),
recommended cold tire inflation pressures are
listed on the Tire And Loading Information
Placard located on driver’s side B-pillar or the rear
edge of the driver's side door. When driving at speeds 100 mph (160 km/h)
and above, increased tire pressures and reduced
vehicle loading are required for high-speed
vehicle operation.
For driving speeds above 100 mph (160 km/h)
recommended cold tire inflation pressures in the
following table under “High Speed Tire Inflation
Pressure”. Vehicle loading condition must not
exceed 688 lb. (312 kg) (driver + three
passengers + 88 lb. (40kg) luggage).
2.0L Engine

NOTE:
Using tires of a different size, type, brand or design on the front and rear may adversely affect vehicle drive-ability. We recommend using only tires approved
by the manufacturer. The manufacturer cannot determine if unapproved tires are suitable for use and therefore cannot guarantee vehicle safety in those
conditions.
WARNING!

High speed driving with your vehicle under
maximum load is dangerous. The added strain
on your tires could cause them to fail. You could
have a serious collision. Do not drive a vehicle
loaded to the maximum capacity at continuous
speeds above 75 mph (120 km/h).

WARNING!
High speed driving with your vehicle under
maximum load is dangerous. The added strain
on your tires could cause them to fail.
You could have a serious collision.
TiresWheel
Recommended Cold Tire Inflation
PressureHigh Speed Tire InflationPressure
FrontRearFrontRear
235/60 R18 103V 18x8J 30 psi / 210 kPa 33 psi / 230 kPa 33 psi / 230 kPa 38 psi / 260 kPa
235/55 R19 101V & 105V 19x8J 30 psi / 210 kPa 33 psi / 230 kPa 33 psi / 230 kPa 38 psi / 260 kPa
255/45 R20 101V 20x8.5J 33 psi / 230 kPa 36 psi / 250 kPa 35 psi / 240 kPa 39 psi / 270 kPa
255/40 R21 102V XL 21x8.5J 33 psi / 230 kPa 36 psi / 250 kPa 33 psi / 230 kPa 39 psi / 270 kPa
195/75 R18 106P
(Compact Spare Tire) –
43 psi / 300 kPa
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232

2.9L Engine
Radial Ply Tires Tire Repair
If your tire becomes damaged, it may be repaired
if it meets the following criteria:
The tire has not been driven on when flat.
The damage is only on the tread section of your
tire (sidewall damage is not repairable).
The puncture is no greater than a ¼ of an
inch (6 mm).Consult an authorized tire dealer for tire repairs
and additional information.
Damaged Run Flat tires, or Run Flat tires that
have experienced a loss of pressure should be
replaced immediately with another Run Flat tire
of identical size and service description (Load
Index and Speed Symbol). Replace the tire
pressure sensor as well as it is not designed to
be reused.
TiresWheel
Recommended Cold Tire
Inflation PressureHigh Speed Tire
Inflation Pressure
FrontRearFrontRear
255/45 R20 101Y
(Original Equipment) 20x9J
36 psi / 250 kPa -39 psi / 270 kPa -
255/40 R21 102Y XL (Original Equipment) 21x9J
39 psi / 270 kPa -39 psi / 270 kPa -
285/40 R20 104Y
(Original Equipment) 20x10J
-39 psi / 270 kPa -42 psi / 290 kPa
285/35 R21 105Y XL (Original Equipment) 21x10J
-42 psi / 290 kPa -42 psi / 290 kPa
255/40 R21 M+S (Snow Tires) 21x9J
39 psi / 270 kPa -39 psi / 270 kPa -
285/35 R21 M+S (Snow Tires) 21x9J
-42 psi / 290 kPa -42 psi / 290 kPa
WARNING!

Combining radial ply tires with other types of tires
on your vehicle will cause your vehicle to handle
poorly. The instability could cause a collision.
Always use radial ply tires in sets of four. Never
combine them with other types of tires.

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NOTE:
If you intend parking or storing your vehicle for an
extended period after cleaning the wheels with
wheel cleaner, drive your vehicle and apply the
brakes to remove the water droplets from the
brake components. This activity will remove the
red rust on the brake rotors and prevent vehicle
vibration when braking.
Dark Or Low Gloss Wheels
TIRE TYPES
All Season Tires — If Equipped
All Season tires provide traction for all seasons
(Spring, Summer, Autumn, and Winter). Traction
levels may vary between different all season
tires. All season tires can be identified by the
M+S, M&S, M/S or MS designation on the
tire sidewall. Use all season tires only in sets of
four; failure to do so may adversely affect the
safety and handling of your vehicle.
Summer Or Three Season Tires —
If Equipped
Summer tires provide traction in both wet and dry
conditions, and are not intended to be driven in
snow or on ice. If your vehicle is equipped with
Summer tires, be aware these tires are not
designed for Winter or cold driving conditions.
Install Winter tires on your vehicle when ambient
temperatures are less than 40°F (5°C) or if
roads are covered with ice or snow. For more
information, contact an authorized dealer.
Summer tires do not contain the all season
designation or mountain/snowflake symbol on
the tire sidewall. Use Summer tires only in sets of
four; failure to do so may adversely affect the
safety and handling of your vehicle.
Snow Tires
Some areas of the country require the use of
snow tires during the Winter. Snow tires can be
identified by a “mountain/snowflake” symbol on
the tire sidewall.If you need snow tires, select tires
equivalent in size and type to the
original equipment tires. Use snow tires
only in sets of four; failure to do so may
adversely affect the safety and handling of your
vehicle. Snow tires generally have lower speed ratings
than what was originally equipped with your
vehicle and should not be operated at sustained
speeds over 75 mph (120 km/h). For speeds
above 75 mph (120 km/h) refer to original
equipment or an authorized tire dealer for
recommended safe operating speeds, loading
and cold tire inflation pressures.
While studded tires improve performance on ice,
skid and traction capability on wet or dry surfaces
may be poorer than that of non-studded tires.
Some states prohibit studded tires; therefore,
local laws should be checked before using these
tire types.
TIRE CHAINS AND TRACTION DEVICES
It is possible to fit 13 mm chains on the tires:
2.0L engines, 18” and 19” are chainable.
2.9L engines, 20” and 21” are chainable.
Use of traction devices require sufficient
tire-to-body clearance. Follow these recommen -
dations to guard against damage.

NOTE:

Traction device must be of proper size for the
tire, as recommended by the traction device
manufacturer.
Use on rear tires only.
Check the tension of the snow chains after the
first few meters have been driven.
Using snow chains with tires with non-original
dimensions may damage the vehicle.
Using different tires sizes or types (M+S, snow,
etc.) between the front and rear axles may
adversely affect vehicle drivability, with the
risk of losing control of the vehicle and
resulting accidents.
CAUTION!
If your vehicle is equipped with these specialty
wheels, DO NOT USE wheel cleaners,
abrasives, or polishing compounds. They will
permanently damage this finish and such
damage is not covered by the New Vehicle
Limited Warranty. HAND WASH ONLY USING
MILD SOAP AND WATER WITH A SOFT CLOTH.
Used on a regular basis; this is all that is
required to maintain this finish.
WARNING!
Do not use Summer tires in snow/ice
conditions. You could lose vehicle control,
resulting in severe injury or death. Driving too
fast for conditions also creates the possibility
of loss of vehicle control.
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TIRE ROTATION RECOMMENDATIONS
Tires on the front and rear axles of vehicles
operate at different loads and perform different
steering, driving, and braking functions. For these
reasons, they wear at unequal rates. These
effects can be reduced by timely rotation of tires.
Rotation will increase tread life, maintain traction
levels and contribute to a smooth, quiet ride.
To resolve this problem, tires should be rotated at
each service interval (approximately every
10,000 miles [16,000 km]). More frequent
rotation is permissible if desired. The reasons for
any rapid or unusual wear should be corrected
prior to rotation being performed.
Tire Rotations Not Recommended — If Equipped
Due to different size tires and wheels on front and
rear axles, tire rotation is not possible for:
2.0L Engine equipped with a different front and
rear tire size.
Tire rotation contributes to the preservation of the
grip and traction performance on wet, muddy or
snowy roads, guaranteeing optimal drivability of
the vehicle.
In the case of irregular wear of the tires identify
the cause and correct it as soon as possible, by
contacting an authorized dealer.The rotational direction of the tire must be taken
into consideration when rotating the tires. The
recommended rotation pattern for directional
tires is shown in the following diagram.
Tire Rotation
It is recommended to avoid situations with a large
difference in wear between the front and rear
tires and to strictly use Winter tires of the sizes
given on the tire placard.
The AWD system and the original tires are
developed together to ensure the vehicle’s best
performance. When changing the tires, it is
recommended to us the same “AR” marked tires,
to maintain the same level of performance and
component life.
CAUTION!
To avoid damage to your vehicle or tires,
observe the following precautions:
Because of restricted traction device
clearance between tires and other
suspension components, it is important that
only traction devices in good condition are
used. Broken devices can cause serious
damage. Stop the vehicle immediately if
noise occurs that could indicate device
breakage. Remove the damaged parts of
the device before further use.
Install device as tightly as possible and then
retighten after driving about ½ mile (0.8 km).
Do not exceed 30 mph (48 km/h).
Drive cautiously and avoid severe turns and
large bumps, especially with a loaded
vehicle.
Do not drive for a prolonged period on
dry pavement.
Observe the traction device manufacturer’s
instructions on the method of installation,
operating speed, and conditions for use.
Always use the suggested operating speed of
the device manufacturer’s if it is less than
30 mph (48 km/h).
Do not use traction devices on a compact
spare tire.
CAUTION!
Damage to the vehicle may occur if different
front and rear tire sizes are rotated
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239

Clean and protect the shiny metal parts using
special compounds available commercially.
Sprinkle talcum powder on the windshield
wiper rubber blades, and lift them off the glass.
Cover the vehicle with a fabric or perforated
plastic sheet, paying particular care not to
damage the painted surface by dragging any
dust that may have accumulated on it. Do not
use compact plastic sheets, as they do not
allow humidity to evaporate from the surface
of the vehicle.
Inflate tires to +7.25 psi (+0.5 bar) above the
standard prescribed pressure and check it
periodically.
Do not drain the engine cooling system.
Any time the vehicle is left inactive for two
weeks or more, operate the air conditioning
system with engine idling for at least five
minutes, setting external air and with fan set to
maximum speed. This operation will ensure
appropriate lubrication for the system, thus
minimizing the possibility of damage to the
compressor when the system is operated
again.

NOTE:
After cycling the ignition to STOP and having
closed the driver side door, wait at least one
minute before disconnecting the electrical supply
from the battery. When reconnecting the elec-
trical supply to the battery, make sure that the
ignition is in the STOP position and the driver’s
side door is closed.
BODYWORK
PROTECTION AGAINST ATMOSPHERIC
A
GENTS
The vehicle is equipped with the best available
technological solutions to protect the bodywork
against corrosion.
These include:
Painting products and systems which give the
vehicle resistance to corrosion and abrasion.
Use of galvanized (or pre-treated) steel sheets,
with high resistance to corrosion.
Spraying of plastic parts, with a protective
function in the more exposed points: under
door, inner wing, edges, etc.
Use of “open” boxed sections to prevent
condensation and pockets of moisture which
could favor the formation of rust inside.
Use of special films to protect against abrasion
in exposed areas (e.g. rear wing, doors, etc.).
CORROSION WARRANTY
Your vehicle is covered by Corrosion Warranty
against perforation due to rust of any original
element of the structure or bodywork. For the
general terms of this warranty, refer to the
Warranty Booklet.
PRESERVING THE BODYWORK
Paint
Touch up abrasions and scratches immediately to
prevent the formation of rust.
Maintenance of paintwork consists of washing
the vehicle: the frequency depends on the
conditions and environment where the vehicle is
used. For example, it is advisable to wash the
vehicle more often in areas with high levels of
atmospheric pollution or salted roads.
Some parts of the vehicle may be covered with a
matte paint which, in order to be maintained
intact, requires special care.
To correctly wash the vehicle, follow these
instructions:
If high pressure jets or cleaners are used to
wash the vehicle, keep a distance of at least
15 inches (40 cm) from the bodywork to avoid
damage or alteration. Build up of water could
cause damage to the vehicle in the long term.
To make it easier to remove any dirt deposits in
the area where the blades are normally located
it is recommended to position the windshield
wipers vertically (service position)

Ú
page 209.
Wash the bodywork using a low pressure jet of
water if possible.
Wipe a sponge with a slightly soapy solution
over the bodywork, frequently rinsing the
sponge.
Rinse well with water and dry with a leather
chamois.
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