2018 Alfa Romeo 4C light

Tire MarkingsNOTE:
•P (Passenger) — Metric tire sizing is based on U.S.
design standards. P-Metric tires have the letter “P”
molded into the sidewall preceding the size designa-
tion. Example: P215/65R15 95H.
• European — Metric tire sizing is based on European
design standards. Tires designed to this standard
have the tire size molded into the sidewall beginning
with the section width. The letter Pis absent from
this tire size designation. Example: 215/65R15 96H.
• LT (Light Truck) — Metric tire sizing is based on U.S.
design standards. The size designation for LT-Metric
tires is the same as for P-Metric tires except for the
letters “LT” that are molded into the sidewall preced-
ing the size designation. Example: LT235/85R16.
• Temporary spare tires are designed for temporary
emergency use only. Temporary high pressure com-
pact spare tires have the letter “T” or “S” molded into
the sidewall preceding the size designation. Ex-
ample: T145/80D18 103M.
• High flotation tire sizing is based on U.S. design
standards and it begins with the tire diameter
molded into the sidewall. Example: 31x10.5 R15 LT.
Tire Markings
1 — U.S. DOT Safety
Standards Code (TIN) 4 — Maximum Load
2 — Size Designation 5 — Maximum Pressure
3 — Service Description 6 — Treadwear, Traction and Temperature Grades 8
SERVICING AND MAINTENANCE 217

Tire Sizing Chart
EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15
LT
P = Passenger car tire size based on U.S. design standards, or
....blank.... = Passenger car tire based on European design standards, or
LT = Light truck tire based on U.S. design standards, or
TorS= Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)
–Ratio of section height to section width of tire, or
10.5 = Section width in inches (in)
R = Construction code
–R means radial construction, or
–D means diagonal or bias construction
15, 16, 18 = Rim diameter in inches (in)
Service Description:
95 = Load Index
–A numerical code associated with the maximum load a tire can carry
218 SERVICING AND MAINTENANCE

EXAMPLE:
H = Speed Symbol
–A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index un-
der certain operating conditions
–The maximum speed corresponding to the speed symbol should only be achieved under specified operating
conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits)
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL)
tire:
• XL = Extra load (or reinforced) tire, or
• LL = Light load tire or
• C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this
tire8
SERVICING AND MAINTENANCE 219

WARNING!(Continued)
follow this warning can result in sudden tire fail-
ure. You could lose control and have a collision
resulting in serious injury or death.
Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact
with oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressures. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed. Refer to the paragraph on
“Tread Wear Indicators” in this section. Refer to the Tire
and Loading Information placard or the Vehicle Certifi-
cation Label for the size designation of your tire. The
Load Index and Speed Symbol for your tire will be found
on the original equipment tire sidewall.
See the Tire Sizing Chart example found in the “Tire
Safety Information” section of this manual for more
information relating to the Load Index and Speed
Symbol of a tire. It is recommended to replace the two front tires or two
rear tires as a pair. Replacing just one tire can seriously
affect your vehicle’s handling. If you ever replace a
wheel, make sure that the wheel’s specifications match
those of the original wheels.
It is recommended you contact your authorized tire
dealer or original equipment dealer with any questions
you may have on tire specifications or capability. Fail-
ure to use equivalent replacement tires may adversely
affect the safety, handling, and ride of your vehicle.
WARNING!
•Do not use a tire, wheel size, load rating, or speed
rating other than that specified for your vehicle.
Some combinations of unapproved tires and
wheels may change suspension dimensions and
performance characteristics, resulting in changes to
steering, handling, and braking of your vehicle.
This can cause unpredictable handling and stress to
steering and suspension components. You could
lose control and have a collision resulting in seri-
ous injury or death. Use only the tire and wheel
sizes with load ratings approved for your vehicle.
(Continued)
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SERVICING AND MAINTENANCE 231

VEHICLE STORAGE
If you are leaving your vehicle dormant for more than
21 days, you may want to take these steps to protect
your battery.
•Disconnect the negative cable from the battery.
• Anytime you store your vehicle, or keep it out of
service (e.g., vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
BODYWORK
Protection From Atmospheric Agents
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice and those that are sprayed on
trees and road surfaces during other seasons are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants,
road surfaces on which the vehicle is operated, extreme hot or cold weather and other extreme conditions will
have an adverse effect on paint, metal trim, and under-
body protection.
The following maintenance recommendations will en-
able you to obtain maximum benefit from the corrosion
resistance built into your vehicle.
What Causes Corrosion?
Corrosion is the result of deterioration or removal of
paint and protective coatings from your vehicle.
The most common causes are:
•
Road salt, dirt and moisture accumulation.
• Stone and gravel impact.
• Insects, tree sap and tar.
• Salt in the air near seacoast localities.
• Atmospheric fallout/industrial pollutants.
Body And Underbody Maintenance
Cleaning Headlights
Your vehicle is equipped with plastic headlights and
fog lights that are lighter and less susceptible to stone
breakage than glass headlights.
240 SERVICING AND MAINTENANCE

Plastic is not as scratch resistant as glass and therefore
different lens cleaning procedures must be followed.
To minimize the possibility of scratching the lenses and
reducing light output, avoid wiping with a dry cloth. To
remove road dirt, wash with a mild soap solution
followed by rinsing.
Do not use abrasive cleaning components, solvents,
steel wool or other aggressive material to clean the
lenses.
Preserving The Bodywork
Washing
•Wash your vehicle regularly. Always wash your
vehicle in the shade using Mopar Car Wash, or a mild
car wash soap, and rinse the panels completely with
clear water.
• If insects, tar, or other similar deposits have accumu-
lated on your vehicle, use Mopar Super Kleen Bug
and Tar Remover to remove.
• Use a high quality cleaner wax, such as Mopar
Cleaner Wax to remove road film, stains, and to
protect your paint finish. Take care never to scratch
the paint. •
Avoid using abrasive compounds and power buffing
that may diminish the gloss or thin out the paint
finish.
NOTE: Hand washing is recommended. Avoid washing
with power washers and do not use commercial car
wash facilities.
CAUTION!
• Do not use abrasive or strong cleaning materials
such as steel wool or scouring powder that will
scratch metal and painted surfaces.
•
Use of power washers exceeding 1,200 psi (8 274 kPa)
can result in damage or removal of paint and decals.
• If the engine compartment is washed with an
high pressure jet, keep it at a distance of at least 8
inches (20 centimeters) from filler surface.
• Do not run this vehicle through an Automatic Car
Wash facility as extensive damage can result due
to the vehicle’s low ground clearance.
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SERVICING AND MAINTENANCE 241

a soft cloth and Mopar Total Clean. Care should be
taken to avoid soaking your leather upholstery with
any liquid. Please do not use polishes, oils, cleaning
fluids, solvents, detergents, or ammonia-based cleaners
to clean your leather upholstery. Application of a
leather conditioner is not required to maintain the
original condition.
NOTE:If equipped with light colored leather, it tends to
show any foreign material, dirt, and fabric dye transfer
more so than darker colors. The leather is designed for
easy cleaning, and FCA recommends Mopar total care
leather cleaner applied on a cloth to clean the leather
seats as needed.
CAUTION!
Do not use Alcohol and Alcohol-based and/or Ke-
tone based cleaning products to clean leather seats,
as damage to the seat may result.
Glass Surfaces
All glass surfaces should be cleaned on a regular basis
with Mopar, or any commercial household-type glass
cleaner. Never use an abrasive type cleaner. Use caution
when cleaning the inside rear window equipped. Do
not use scrapers or other sharp instrument that may
scratch the elements.
Labels can be peeled off after soaking with warm water
(if equipped), keep all objects a safe distance from the
windows.
When cleaning the rear view mirror, spray cleaner on
the towel or cloth that you are using. Do not spray
cleaner directly on the mirror.
244 SERVICING AND MAINTENANCE

BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic brake
systems. If either of the two hydraulic systems loses
normal capability, the remaining system will still func-
tion. However, there will be some loss of overall brak-
ing effectiveness. You may notice increased pedal travel
during application, greater pedal force required to slow
or stop, and potential activation of the “Brake System
Warning Light”.
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off), the
brakes will still function. However, the effort required
to brake the vehicle will be much greater than that
required with the power system operating.
FUEL REQUIREMENTS — 1750 TURBO
The 1750 turbo engine is designed to
meet all emissions regulations and pro-
vide excellent fuel economy and perfor-
mance when using high-quality premium
unleaded gasoline with an octane rating
of only 91 or higher. Light spark knock at low engine speeds is not harmful
to your engine. However, continued heavy spark knock
at high speeds can cause damage and immediate ser-
vice is required.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of gasoline (with the
appropriate octane rating for your engine) before con-
sidering service for the vehicle.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gaso-
line”. Reformulated gasoline contains oxygenates and
are specifically blended to reduce vehicle emissions and
improve air quality.
The use of reformulated gasoline is recommended.
Properly blended reformulated gasoline will provide
improved performance and durability of engine and
fuel system components.
Materials Added To Fuel
Besides using unleaded gasoline with the proper octane
rating, gasolines that contain detergents, corrosion and
stability additives are recommended. Using gasolines
248 TECHNICAL SPECIFICATIONS