2018 FIAT 500C radiator cap

IF YOUR ENGINE OVERHEATS
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 (Continued) WARNING! (Continued)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 the pointer rises to the H (red) mark, the
instrument cluster will sound a chime. When safe, pull
over and stop the vehicle with the engine at idle. Turn
off the air conditioning and wait until the pointer
drops back into the normal range. If the pointer
remains on the H (red) mark for more than a minute,
turn the engine off immediately and call for service.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or snow, it can
often be moved using a rocking motion. Turn the steering
wheel right and left to clear the area around the front
wheels. Then shift back and forth between DRIVE and
REVERSE (with automatic transmission) or SECOND224 IN CASE OF EMERGENCY

Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to assure proper catalyst
operation and prevent possible catalyst damage.
NOTE: Intentional tampering with emissions control sys-
tems can result in civil penalties being assessed against
you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe and
abnormal catalyst overheating. If this occurs, stop the
vehicle, turn off the engine and allow it to cool. Service,
including a tune-up to manufacturer’s specifications,
should be obtained immediately.
To minimize the possibility of catalytic converter damage:
• Do not interrupt the ignition when the transmission is in
gear and the vehicle is in motion.
• Do not try to start the vehicle by pushing or towing the
vehicle.
• Do not idle the engine with any ignition components
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough idle
or malfunctioning operating conditions. 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, discon-
nect 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.
Coolant Checks
Check engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where appli-
cable). If the engine coolant (antifreeze) is dirty or rusty in
appearance, the system should be drained, flushed and248 SERVICING AND MAINTENANCE

Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that engine coolant
(antifreeze) will return to the radiator from the coolant
expansion bottle/recovery tank if so equipped.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!• Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is over-
heated. 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 speci-
fied for your vehicle. Personal injury or engine
damage may result. Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze) is a regu-
lated substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children,
do not store ethylene glycol-based coolant in open contain-
ers or allow it to remain in puddles on the ground. If
ingested by a child or pet, seek emergency assistance
immediately. Clean up any ground spills immediately.
Coolant Level
The coolant expansion bottle provides a quick visual
method for determining that the coolant level is adequate.
With the engine off and cold, the level of the coolant
(antifreeze) in the bottle should be between the “MAX” and
“MIN” lines marked on the bottle.
As long as the engine operating temperature is satisfactory,
the coolant bottle need only be checked once a month.
When additional coolant (antifreeze) is needed to maintain
the proper level, it should be added to the coolant bottle.
Do not overfill.
See an authorized dealer for service. 8SERVICING AND MAINTENANCE 251

Points To Remember
NOTE: When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is normally
a result of moisture from rain, snow, or high humidity
accumulating on the radiator and being vaporized when
the thermostat opens, allowing hot engine coolant (anti-
freeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
• Do not overfill the coolant expansion bottle.
• Check the coolant freeze point in the radiator and in the
coolant expansion bottle. If engine coolant (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to MS.90032)
and distilled water for proper corrosion protection of your
engine which contains aluminum components. • Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Plan” in this section for the proper
maintenance intervals.
WARNING!Riding the brakes can lead to brake failure and possi-
bly a collision. Driving with your foot resting or riding
on the brake pedal can result in abnormally high brake
temperatures, excessive lining wear, and possible
brake damage. You would not have your full braking
capacity in an emergency.252 SERVICING AND MAINTENANCE

Special Additives ........................ .254
Autostick ............................... .174
Battery .............................. .85, 237
Charging System Light .....................85
Jump Starting .......................... .220
Belts, Seat ............................... .155
Body Mechanism Lubrication ................. .244
B-Pillar Location .......................... .259
Brake Assist System ........................ .101
Brake Fluid .......................... .291, 293
Brake, Parking ............................ .164
Brake System ......................... .252, 285
Anti-Lock (ABS) ..................... .100, 285
Fluid Check ........................... .253
Master Cylinder ........................ .253
Parking .............................. .164
Warning Light ...........................84
Brake/Transmission Interlock ................. .169
Bulb Replacement ......................... .197
Bulbs, Light .......................... .157, 197
Camera, Rear ............................ .185
Capacities, Antifreeze (Engine Coolant) .......... .290
Capacities, Fluid .......................... .290 Caps, Filler
Fuel ................................. .186
Oil (Engine) ........................ .231, 239
Radiator (Coolant Pressure) ................ .251
Carbon Monoxide Warning ............... .154, 290
Car Washes .............................. .278
Cellular Phone ........................... .308
Certification Label ......................... .188
Chains, Tire ............................. .274
Change Oil Indicator .................... .82, 231
Changing A Flat Tire ....................... .255
Check Engine Light (Malfunction Indicator Light) ....96
Checking Your Vehicle For Safety .............. .154
Checks, Safety ............................ .154
Child Restraint ........................... .137
Child Restraints
Booster Seats ........................... .141
Child Seat Installation .................... .151
How To Stow An unused ALR Seat Belt ....... .147
Infant And Child Restraints ................ .140
Lower Anchors And Tethers For Children ...... .143
Older Children And Child Restraints .......... .140
Seating Positions ........................ .142
Clean Air Gasoline ........................ .28712 INDEX 323

Cleaning
Wheels ............................... .273
Climate Control ............................44
Automatic ........................... .48, 53
Manual ................................44
Compact Disc (CD) Maintenance ............... .314
Compact Spare Tire ........................ .271
Contract, Service .......................... .318
Convertible Top Maintenance ................. .279
Coolant (Antifreeze) .................... .290, 291
Cooling Pressure Cap (Radiator Cap) ........... .251
Cooling System ........................... .248
Adding Coolant (Antifreeze) ................ .250
Coolant Capacity ........................ .291
Coolant Level ....................... .248, 251
Disposal Of Used Coolant ................. .251
Drain, Flush, And Refill ................... .249
Inspection ............................. .251
Points To Remember ..................... .252
Pressure Cap ........................... .251
Radiator Cap .......................... .251
Selection Of Coolant (Antifreeze) ............ .249
Corrosion Protection ....................... .277
Cruise Control (Speed Control) ................ .178
Cruise Light ...............................94 Cupholders ...............................66
Customer Assistance ....................... .316
Customer Programmable Features .............. .297
Cybersecurity ............................ .296
Daytime Running Lights ................... .37, 38
Dealer Service ............................ .238
Defroster, Windshield ....................... .155
Diagnostic System, Onboard ....................95
Dimmer Switch
Headlight ...............................37
Dipsticks
Oil (Engine) ........................... .236
Disposal
Antifreeze (Engine Coolant) ................ .251
Door Ajar ............................. .86, 87
Door Ajar Light ......................... .86, 87
Doors ....................................24
Driver ’s Seat Back Tilt ........................26
Driving
Through Flowing, Rising, Or Shallow Standing
Water ................................ .191
Electrical Power Outlets .......................68
Electric Remote Mirrors .......................36324 INDEX

Checking ............................. .236
Dipstick .............................. .236
Disposal .............................. .239
Filter ................................ .240
Filter Disposal .......................... .239
Identification Logo ...................... .238
Materials Added To ...................... .239
Pressure Warning Light .....................87
Recommendation .................... .238, 290
Synthetic ............................. .239
Viscosity .............................. .239
Oil Filter, Change ......................... .240
Oil Filter, Selection ......................... .240
Oil Pressure Light ...........................87
Onboard Diagnostic System ....................95
Operating Precautions ........................95
Operator Manual (Owner’s Manual) ...............5
Outlet
Power .................................68
Outside Rearview Mirrors .....................34
Overheating, Engine ....................... .224
Owner’s Manual (Operator Manual) ...........5,320
Paint Care ............................... .277
Parking Brake ............................ .164 Passing Light ..............................38
Pets ................................... .153
Placard, Tire And Loading Information .......... .259
Power
Brakes ............................... .285
Door Locks ..............................25
Mirrors ................................36
Outlet (Auxiliary Electrical Outlet) .............68
Steering .............................. .177
Sunroof ................................57
Pregnant Women And Seat Belts ............... .120
Pretensioners
Seat Belts ............................. .121
Radial Ply Tires ........................... .265
Radiator Cap (Coolant Pressure Cap) ............ .251
Radio Frequency
General Information .................... .19, 22
Radio Operation .......................... .308
Rear Camera ............................. .185
Rear Liftgate (Sedan) .........................65
Recreational Towing ........................ .190
Reformulated Gasoline ...................... .287
Refrigerant .............................. .241
Release, Hood ..............................63 12 INDEX 329