2008 CHRYSLER 300 SRT coolant temperature

the light remains on, or if the light does not turn on, have
the light inspected by an authorized dealer.
NOTE:The light will turn on when the ignition switch
is in the ON position and the parking brake is applied.
This light shows only that the parking brake is applied. It
does not show the degree of brake application. (See page
317 for more information.)
13. Electronic Stability Program (ESP)/Traction
Control System (TCS) Indicator Light
If this indicator light flashes during accelera-
tion, ease up on the accelerator and apply as
little throttle as possible. Adapt your speed and
driving to the prevailing road conditions, and
do not switch off the ESP. (See page 320 for more
information.)14. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
UNDERSTANDING YOUR INSTRUMENT PANEL 203
4

CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads 240°F
(116°C) or greater, pull over and stop the vehicle. Idle
the vehicle with the air conditioner turned off until
the pointer drops back into the normal range 200–
230°F (93–110°C). If the pointer remains at 240°F
(116°C) or greater and you hear a chime, turn the
engine OFF immediately, and call for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call a service center if your
vehicle overheats. If you decide to look under the
hood yourself, refer to Section 7 and follow the
warnings under the Cooling System Pressure Cap
paragraph.
15. Trip Odometer Button
Press this button to change the display from odometer to
either of two trip odometer settings. The letter “A” or “B”
will appear when in the trip odometer mode. Push in and
hold the button for two seconds to reset the trip odometer
to 0 mi (km). The odometer must be in TRIP mode to
reset it.
204 UNDERSTANDING YOUR INSTRUMENT PANEL

WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call a service center if your
vehicle overheats. If you decide to look under the
hood yourself, refer to Section 7 and follow the
warnings under the Cooling System Pressure Cap
paragraph.
TIREFIT TIRE REPAIR
Small punctures, particularly those in the tread, can be
sealed with TIREFIT. Foreign objects (e.g., screws or
nails) should not be removed from the tire. TIREFIT can
be used in outside temperatures down to approximately
-4°F (-20°C).The TIREFIT system is located under an access panel in
the trunk.
TIREFIT Location
372 WHAT TO DO IN EMERGENCIES

Cooling System
WARNING!
•When working near the radiator cooling fan, dis-
connect the fan motor lead or turn the ignition
switch to the LOCK position. The fan is tempera-
ture controlled and can start at any time the
ignition switch is in the ON position.
•You or others can be badly burned by hot coolant
or steam from your radiator. If you see or hear
steam coming from under the hood, don’t open the
hood until the radiator has had time to cool. Never
try to open a cooling system pressure cap when the
radiator is hot.
Coolant Checks
Check engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If coolant is dirty or rusty in appearance, the
system should be drained, flushed, and refilled with
fresh coolant. Check the front of the A/C condenser for
any accumulation of bugs, leaves, etc. If dirty, clean by
gently spraying water from a garden hose vertically
down the face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts, and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
coolant from the radiator drain cock. If the cap is sealing
properly, the engine coolant (antifreeze) will begin to
404 MAINTAINING YOUR VEHICLE

Adding Coolant
Your vehicle has been built with an improved engine
coolant that allows extended maintenance intervals. This
coolant can be used up to five years or 100,000 mi (160
000 km) before replacement. To prevent reducing this
extended maintenance period, it is important that you
use the same coolant throughout the life of your vehicle.
Please review these recommendations for using Hybrid
Organic Additive Technology (HOAT) coolant.
When adding coolant:
•The manufacturer recommends using Mopar
Antifreeze/Coolant 5 Year/100,000 Mile Formula
HOAT (Hybrid Organic Additive Technology).
•Mix a minimum solution of 50% HOAT engine coolant
and distilled water. Use higher concentrations (not to
exceed 70%) if temperatures below
34°F (
37°C) are
anticipated.
•Use only high purity water such as distilled or deion-
ized water when mixing the water/engine coolant
solution. The use of lower quality water will reduce
the amount of corrosion protection in the engine
cooling system.
Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:Mixing coolant types will decrease the life of the
engine coolant and will require more frequent coolant
changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of coolant
and to ensure that coolant will return to the radiator from
the coolant recovery bottle.
406 MAINTAINING YOUR VEHICLE

The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
coolant freeze point or replacing coolant. Advise your
service attendant of this. As long as the engine operating
temperature is satisfactory, the coolant bottle need only
be checked once a month.
When additional coolant is needed to maintain the
proper level, it should be added to the coolant bottle. Do
not overfill.
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 nor-
mally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot coolant 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 recovery bottle.
•Check coolant freeze point in the radiator and in the
coolant recovery bottle. If antifreeze needs to be
added, contents of coolant recovery bottle must also be
protected against freezing.
•If frequent coolant additions are required, or if the
level in the coolant recovery bottle does not drop when
the engine cools, the cooling system should be pres-
sure tested for leaks.
•Maintain coolant concentration at 50% HOAT engine
coolant (minimum) and distilled water for proper
corrosion protection of your engine, which contains
aluminum components.
408 MAINTAINING YOUR VEHICLE

Jump Starting......................... 377
Overheating.......................... 371
Towing ............................. 381
Emergency Trunk Release................... 38
Emission Control System Maintenance......388,440
Engine............................... 386
Air Cleaner.......................... 394
Block Heater......................... 301
Break-In Recommendations................ 73
Checking Oil Level..................... 391
Compartment......................... 386
Coolant (Antifreeze).................404,436
Cooling ............................. 404
Exhaust Gas Caution.................. 75,360
Fails to Start.......................... 300
Flooded, Starting...................... 300
Fuel Requirements..................... 357
Jump Starting......................... 377
Oil ...........................391,435,436Oil Change Interval.................... 392
Oil Filler Cap......................... 392
OilFilter ............................ 393
Oil Filter Disposal...................... 393
Oil Selection.......................392,435
Overheating.......................... 371
Starting............................. 297
Temperature Gauge..................... 203
Engine Oil Viscosity...................... 392
Enhanced Accident Response Feature.......... 60
Entry System, Illuminated.................. 20
Ethanol............................... 358
Event Data Recorder...................... 62
Exhaust Gas Caution.............. 75,76,360,403
Exhaust System....................... 75,403
ExteriorFoldingMirrors ................... 85
ExteriorLighting ........................ 132
ExteriorLights .......................... 77
INDEX 463
10

Materials Added....................... 359
Methanol............................ 358
Octane Rating......................357,436
Requirements......................... 357
Specifications......................... 436
Tank Capacity........................ 435
Fuel System Caution..................... 362
Fueling ............................... 361
Fuses................................ 419
Garage Door Opener (HomeLink) ........... 177
Gas Cap (Fuel Filler Cap)...............361,387
Gasoline, Clean Air...................... 358
Gasoline (Fuel)......................... 357
Gasoline, Reformulated................... 358
Gauges
Coolant Temperature.................... 203
Fuel................................ 205
Speedometer......................... 199Tachometer.......................... 200
General Information.......... 18,24,115,172,311,357
General Maintenance..................... 390
Glass Cleaning.......................... 418
GrossAxleWeightRating .................. 364
Gross Vehicle Weight Rating................ 364
Ground Clearance....................... 367
GVWR ............................... 364
Hands-Free Phone (UConnect™)........ 88,251,253
Hard Drive (HDD)....................232,251
Hazard
Driving Through Flowing, Rising, or Shallow
Standing Water......................... 313
Hazard Warning Flasher................... 370
Head Restraints......................... 123
Headlight Washers....................145,402
Headlights............................ 428
Automatic........................... 133
INDEX 465
10