engine overheat CHRYSLER 300 2019 User Guide

CAUTION!
Accessories plugged into the vehicle power outlets
draw power from the vehicle’s battery, even when not
in use (i.e., cellular devices, etc.). Eventually, if plugged
in long enough without engine operation, the vehicle’s
battery will discharge sufficiently to degrade battery
life and/or prevent the engine from starting.
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 the engine idle speed
while preventing vehicle motion with the brakes.
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 the temperature gauge reads HOT (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 HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.
332 IN CASE OF EMERGENCY

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 while gently pressing the accelerator. Use the
least amount of accelerator pedal pressure that will main-
tain the rocking motion, without spinning the wheels or
racing the engine.
NOTE:
•Shifts between DRIVE and REVERSE can only be
achieved at wheel speeds of 5 mph (8 km/h) or less.
Whenever the transmission remains in NEUTRAL for
more than two seconds, you must press the brake pedal
to engage DRIVE or REVERSE.
• Push the ESC Off switch, to place the Electronic
Stability Control (ESC) system in Partial Offmode,
before rocking the vehicle. Refer to “Electronic Brake
Control System” in “Safety” for further information.
Once the vehicle has been freed, push the ESC Off
switch again to restore ESC Onmode.
WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause damage, or even
failure, of the axle and tires. A tire could explode and
injure someone. Do not spin your vehicle’s wheels
faster than 30 mph (48 km/h) or for longer than 30
seconds continuously without stopping when you are
stuck and do not let anyone near a spinning wheel, no
matter what the speed.
CAUTION!
•Racing the engine or spinning the wheels may lead
to transmission overheating and failure. Allow the
engine to idle with the transmission in NEUTRAL
for at least one minute after every five rocking-
motion cycles. This will minimize overheating and
reduce the risk of transmission failure during pro-
longed efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shifting between
DRIVE and REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
(Continued)
7
IN CASE OF EMERGENCY 335

CAUTION!(Continued)
•Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure. It
can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no transmis-
sion shifting occurring).
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled
vehicle using a commercial towing service.
Towing Condi- tion Wheels OFF
The Ground RWD MODELS AWD MODELS
Flat Tow NONE If transmission is
operable:
• Transmission in
NEUTRAL
• 30 mph (48 km/h) maxspeed
• 30 miles (48 km) maxdistance NOT ALLOWED
Wheel Lift Or Dolly Tow Front
NOT RECOMMENDED (but, if
used, same limitations as above) NOT ALLOWED
Rear NOT RECOMMENDED NOT RECOMMENDED, but, if used:
•Ignition in ON/RUN mode
• Transmission in NEUTRAL
(NOT in PARK)
Flatbed ALL BEST METHOD BEST METHOD
336 IN CASE OF EMERGENCY

have an authorized technician inspect the complete ex-
haust system and adjacent body areas for broken, dam-
aged, deteriorated, or mispositioned parts. Open seams or
loose connections could permit exhaust fumes to seep into
the passenger compartment. In addition, have the exhaust
system inspected each time the vehicle is raised for lubri-
cation or oil change. Replace as required.
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. To avoid breathing CO, refer
to “Safety Tips” in “Safety” for further information.
• 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.
CAUTION!
• The catalytic converter requires the use of unleaded
fuel only. Leaded gasoline will destroy the effective-
ness of the catalyst as an emissions control device
and may seriously reduce engine performance and
cause serious damage to the engine.
• Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
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.
8
SERVICING AND MAINTENANCE 363

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 shut off the engine or interrupt the ignition when
the transmission is in gear and the vehicle is in motion.
• Do not try to start the engine by pushing or towing the
vehicle.
• Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough idle
or malfunctioning operating conditions.
NOTE: Your vehicle’s exhaust system may be equipped
with an Electronic Exhaust Valve (EEV) system, if the
exhaust system is replaced with aftermarket products a
Malfunction Indicator Lamp (MIL) will illuminate.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.
364 SERVICING AND MAINTENANCE

NOTE:
•It is the owner’s responsibility to maintain the proper
level of protection against freezing according to the
temperatures occurring in the area where the vehicle is
operated.
• Some vehicles require special tools to add coolant prop-
erly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed
to be added to the system, please contact a local autho-
rized dealer.
•
Mixing engine coolant (antifreeze) types is not recom-
mended and can result in cooling system damage. If HOAT
and OAT coolant are mixed in an emergency, have a
authorized dealer drain, flush, and refill with OAT coolant
(conforming to MS.90032) as soon as possible.
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.
8
SERVICING AND MAINTENANCE 367

MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (MMT) is
a manganese-containing metallic additive that is blended
into some gasoline to increase octane. Gasoline blended
with MMT provides no performance advantage beyond
gasoline of the same octane number without MMT. Gaso-
line blended with MMT reduces spark plug life and
reduces emissions system performance in some vehicles.
The manufacturer recommends that gasoline without
MMT be used in your vehicle. The MMT content of
gasoline may not be indicated on the gasoline pump;
therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. MMT is prohibited in Federal
and California reformulated gasoline.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gasoline is prohibited by Federal
law. Using leaded gasoline can impair engine perfor-
mance and damage the emissions control system.
(Continued)
CAUTION! (Continued)
•An out-of-tune engine or certain fuel or ignition
malfunctions can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune or
malfunctioning and may require immediate service.
Contact an authorized dealer for service assistance.
• The use of fuel additives, which are now being sold
as octane enhancers, is not recommended. Most of
these products contain high concentrations of metha-
nol. Fuel system damage or vehicle performance
problems resulting from the use of such fuels or
additives is not the responsibility of the manufac-
turer and may void or not be covered under the New
Vehicle Limited Warranty.
NOTE: Intentional tampering with the emissions control
system can result in civil penalties being assessed against
you.
410 TECHNICAL SPECIFICATIONS

Electronic Stability Control (ESC)...............149
Electronic Throttle Control Warning Light .........133
Emergency, In Case Of Freeing Vehicle When Stuck .................335
Hazard Warning Flasher ...................300
Jacking ........................... .321, 373
Jump Starting .......................... .329
Towing ............................... .336
Emission Control System Maintenance ............143
Engine .............................. .348, 349
Air Cleaner ............................ .355
Block Heater ........................... .225
Break-In Recommendations .................225
Checking Oil Level ...................... .350
Compartment ....................... .348, 349
Compartment Identification .................348
Coolant (Antifreeze) ...................365, 415
Cooling .............................. .364
Exhaust Gas Caution ...................212, 411
Fails To Start ........................... .224
Flooded, Starting ........................ .224
Fuel Requirements ....................407, 414
Jump Starting .......................... .329
Oil ........................... .353, 414, 415
Oil Filler Cap ....................... .348, 354Oil Filter
.............................. .355
Oil Selection ........................ .353, 414
Oil Synthetic ........................... .354
Overheating ........................... .332
Starting ........................... .220, 221
Engine Oil Viscosity .....................353, 354
Engine Oil Viscosity Chart ....................353
Enhanced Accident Response Feature .........194, 339
Ethanol ............................. .409, 411
Exhaust Gas Cautions ................... .212, 411
Exhaust

System ....................... .212, 362
Exterior Lighting ............................66
Exterior Lights ......................... .66, 215
Filters Air Cleaner ............................ .355
Air Conditioning ..................... .86, 357
Engine Oil ......................... .355, 415
Engine Oil Disposal ...................... .355
Flashers ................................ .300
Hazard Warning ........................ .300
Turn Signals ..................... .70, 141, 215
Flash-To-Pass ..............................68
Flexible Fuel Vehicles Cruising Range ......................... .413
476 INDEX

Octane Rating, Gasoline (Fuel)...........407, 408, 415
Oil Change Indicator ....................... .124
Reset ................................ .124
Oil, Engine ........................... .353, 415
Capacity .............................. .414
Change Interval ........................ .353
Checking ............................. .350
Dipstick .............................. .350
Disposal .............................. .355
Filter ............................. .355, 415
Filter Disposal .......................... .355
Identification Logo ...................... .353
Materials Added To ...................... .354
Pressure Warning Light ....................134
Recommendation .....................353, 414
Synthetic ............................. .354
Viscosity ....................... .353, 354, 414
Oil Filter, Change ......................... .355
Oil Filter, Selection ......................... .355
Oil Pressure Light ......................... .134
Onboard Diagnostic System ...................142
Operating Precautions ...................... .142
Operator Manual Owner’s Manual .......................5,470
Outside Rearview Mirrors .....................61 Overheating, Engine
....................... .332
Owner ’s Manual (Operator Manual) ...............5
Paddle Shifters ........................... .237
Paddle Shift Mode ......................... .237
Paint Care ............................... .398
Panic Alarm ...............................22
Parking Brake ............................ .226
ParkSense System, Rear ..................... .264
Passive Entry ..............................39
Personalized Main Menu .....................421
Pets ................................... .212
Pinch Protection ............................
93
Placard, Tire And Loading Information ...........379
Power Brakes ............................... .405
Deck Lid Release .........................95
Distribution Center (Fuses) ..................316
Door Locks ..............................38
Mirrors ................................62
Outlet (Auxiliary Electrical Outlet) ............113
Seats ..................................46
Steering .............................. .239
Sunroof ................................90
Tilt/Telescoping Steering Column ..............58
12
INDEX 481