2021 CHRYSLER 300 maintenance

196 SERVICING AND MAINTENANCE
MAINTENANCE PLAN
Required Maintenance Intervals:
Refer to the maintenance schedules on the following page for the required maintenance intervals.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
Change oil and filter.
Rotate the tires at the first sign of irregular wear, even if it occurs before your next scheduled service.
Inspect battery and clean and tighten terminals as required.
Inspect the CV/Universal joints.
Inspect brake pads, shoes, rotors, drums, hoses and parking brake.
Inspect engine cooling system protection and hoses.
Inspect exhaust system.
Inspect engine air cleaner if using in dusty or off-road conditions, replace engine air cleaner filter if necessary.

SERVICING AND MAINTENANCE 197
Mileage or time passed (whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2345678910 1112131415
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Additional Inspections
Inspect the CV/Universal joints. XXXXXXXXXXXXXX
Inspect front suspension, tie rod ends, boot seals, and replace if
ne
cessary. X
XXXXXX
Inspect the rear axle fluid. Inspect the front axle fluid (All Wheel
D r

ive Only). X
XXXXXX
Inspect the brake linings, replace as necessary. XXXXXXX
Adjust parking brake on vehicles equipped with four wheel disc
b r

akes. X
XXXXXX
Inspect transfer case fluid (All Wheel Drive Only). XXXXX
Additional Maintenance
Replace engine air cleaner filter. XXXXX
Replace cabin air filter. XXXXXXX
Replace spark plugs.
1X
Flush and replace the engine coolant at 10 years or 150,000 miles
( 2

40,000 km) whichever comes first. X
X
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198 SERVICING AND MAINTENANCE
Change the transfer case fluid; if using your vehicle for any of the
following: police, taxi, fleet, off-road, or frequent trailer towing.
(All Wheel Drive Only). X
X
Change the rear axle fluid and on models equipped with All Wheel
D r

ive (AWD) change the front axle fluid if using your vehicle for any
of the following: police, taxi, fleet, off-road, or frequent trailer towing. X
XX
Inspect and replace PCV valve if necessary. X
1. The spark plug change interval is mileage based only, yearly intervals do not apply.
Mileage or time passed (whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
WARNING!
You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have
any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.
Failure to properly inspect and maintain your vehicle could result in a component malfunction and affect vehicle handling and performance. This could cause
an accident.

SERVICING AND MAINTENANCE 199
ENGINE COMPARTMENT
3.6L ENGINE
1 — Brake Fluid Reservoir Access Cover 5 — Engine Oil Dipstick
2 — Washer Fluid Reservoir Cap 6 — Engine Air Cleaner Filter
3 — Power Distribution Center (Fuses) 7 — Engine Coolant Pressure Reservoir
4 — Engine Oil Fill
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200 SERVICING AND MAINTENANCE
5.7L ENGINE
1 — Brake Fluid Reservoir Access Cover 5 — Engine Oil Fill
2 — Washer Fluid Reservoir Cap 6 — Engine Air Cleaner Filter
3 — Power Distribution Center (Fuses) 7 — Engine Coolant Pressure Reservoir
4 — Engine Oil Dipstick

SERVICING AND MAINTENANCE 201
(Continued)
CHECKING OIL LEVEL
To ensure proper engine lubrication, the engine oil
must be maintained at the correct level. Check the
oil level at regular intervals, such as every month.
The best time to check the engine oil level is about
five minutes after a fully warmed up engine is shut
off.
Checking the oil while the vehicle is on level ground
w i

ll improve the accuracy of the oil level readings.
There are four possible dipstick types:
Crosshatched zone.
Crosshatched zone marked SAFE.
Crosshatched zone marked with MIN at the low
end of the range and MAX at the high end of the
range.
Crosshatched zone marked with dimples at the
MIN and the MAX ends of the range.
NOTE:
Always maintain the oil level within the crosshatch
m a
rkings on the dipstick.
Adding 1 quart (1.0 liters) of oil when the reading
is
at the low end of the dipstick range will raise the
oil level to the high end of the range marking.
ADDING WASHER FLUID
The windshield washer fluid reservoir is located in
the front of the engine compartment. Be sure to
check the fluid level at regular intervals. Fill the
reservoir with windshield washer solvent (not
radiator antifreeze) and operate the system for a
few seconds to flush out the residual water.
When refilling the washer fluid reservoir, apply
s om

e washer fluid to a cloth or towel and wipe the
wiper blades clean. This will help blade
performance.
To prevent freeze-up of your windshield washer
sy
stem in cold weather, select a solution or mixture
that meets or exceeds the temperature range of
your climate. This rating information can be found
on most washer fluid containers.
The fluid reservoir will hold nearly 1 gallon (4 liters)
of

washer fluid when the message “Low Washer
Fluid” appears in the instrument cluster.
MAINTENANCE-FREE BATTERY
Your vehicle is equipped with a maintenance-free
battery. You will never have to add water, nor is
periodic maintenance required.
NOTE:
The battery is stored under an access cover in the
t r
unk. Remote battery terminals are located in the
engine compartment for jump starting
Ú page 186.
CAUTION!
Overfilling or underfilling the crankcase will
cause aeration or loss of oil pressure. This could
damage your engine.
WARNING!
Commercially available windshield washer
solvents are flammable. They could ignite and
burn you. Care must be exercised when filling or
working around the washer solution.
WARNING!
Battery fluid is a corrosive acid solution and
can burn or even blind you. Do not allow
battery fluid to contact your eyes, skin, or
clothing. Do not lean over a battery when
attaching clamps. If acid splashes in eyes or
on skin, flush the area immediately with large
amounts of water

Ú page 186.
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202 SERVICING AND MAINTENANCE
(Continued)
PRESSURE WASHING
Cleaning the engine compartment with a high
pressure washer is not recommended.
VEHICLE MAINTENANCE
An authorized dealer has the qualified service
personnel, special tools, and equipment to
perform all service operations in an expert
manner. Service Manuals are available which
include detailed service information for your
vehicle. Refer to these Service Manuals before
attempting any procedure yourself.
NOTE:
Intentional tampering with emissions control
s y
stems may void your warranty and could result in
civil penalties being assessed against you.
ENGINE OIL
Engine Oil Selection — 3.6L And 5.7L
Engine
For best performance and maximum protection
under all types of operating conditions, the
manufacturer only recommends engine oils that
are API Certified and meet the requirements of FCA
Material Standard MS-6395.
NOTE:
Hemi engines at times can tick right after startup
a n
d then quiet down after approximately 30
seconds. This is normal and will not harm the
engine. This characteristic can be caused by short
drive cycles. For example, if the vehicle is started
then shut off after driving a short distance. Upon
restarting, you may experience a ticking sound.
Battery gas is flammable and explosive. Keep
flame or sparks away from the battery. Do not
use a booster battery or any other booster
source with an output greater than 12 Volts.
Do not allow cable clamps to touch each
other.
Battery posts, terminals, and related accesso -
ries contain lead and lead compounds. Wash
h a
nds after handling.
The battery in this vehicle has a vent hose that
should not be disconnected and should only
be replaced with a battery of the same type
(vented).
CAUTION!
It is essential when replacing the cables on
the battery that the positive cable is attached
to the positive post and the negative cable is
attached to the negative post. Battery posts
are marked positive (+) and negative (-) and
are identified on the battery case. Cable
clamps should be tight on the terminal posts
and free of corrosion.
WARNING!
If a “fast charger” is used while the battery is
in the vehicle, disconnect both vehicle battery
cables before connecting the charger to the
battery. Do not use a “fast charger” to provide
starting voltage.
CAUTION!
Precautions have been taken to safeguard all
parts and connections however, the pressures
generated by these machines is such that
complete protection against water ingress
cannot be guaranteed.
CAUTION!
WARNING!
You can be badly injured working on or around a
motor vehicle. Only do service work for which
you have the knowledge and the proper
equipment. If you have any doubt about your
ability to perform a service job, take your vehicle
to a competent mechanic.

SERVICING AND MAINTENANCE 203
Other causes could be if the vehicle is unused for
an extended period of time, incorrect oil, extended
oil changes or extended idling. If the engine
continues to tick or if the Malfunction Indicator
Light (MIL) comes on, see the nearest authorized
dealer.
American Petroleum Institute (API) Engine
Oil Identification Symbol
This symbol means that the oil has been
certified by the American Petroleum
In
stitute (API). The manufacturer only
recommends API Certified engine oils.
This symbol certifies 0W-20, 5W-20, 0W-30,
5 W

-30 and 10W-30 engine oils.
Synthetic Engine Oils
You may use synthetic engine oils provided the
recommended oil quality requirements are met,
and the recommended maintenance intervals for
oil and filter changes are followed. Synthetic engine oils which do not have both the
e
n

gine oil certification mark and the correct SAE
viscosity grade number should not be used.
Materials Added To Engine Oil
The manufacturer strongly recommends against
the addition of any additives (other than leak
detection dyes) to the engine oil. Engine oil is an
engineered product and its performance may be
impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil
Filters
Care should be taken in disposing of used engine
oil and oil filters from your vehicle. Used oil and oil
filters, indiscriminately discarded, can present a
problem to the environment. Contact an
authorized dealer, service station or governmental
agency for advice on how and where used oil and
oil filters can be safely discarded in your area.
ENGINE OIL FILTER
The engine oil filter should be replaced with a new
filter at every engine oil change.
Engine Oil Filter Selection
This manufacturer's engines have a full-flow type
d i

sposable oil filter. Use a filter of this type for
replacement. The quality of replacement filters
varies considerably. Only high quality filters should be used to ensure most efficient service. Mopar®
engine oil filters are high quality oil filters and are
recommended.
ENGINE AIR CLEANER FILTER
For the proper maintenance intervals
Ú page 195.
Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner
f i

lters varies considerably. Only high quality filters
should be used to ensure most efficient service.
Mopar® engine air cleaner filters are a high quality
filter and are recommended.
CAUTION!
Do not use chemical flushes in your engine oil as
the chemicals can damage your engine. Such
damage is not covered by the New Vehicle
Limited Warranty.
WARNING!
The air induction system (air cleaner, hoses,
etc.) can provide a measure of protection in the
case of engine backfire. Do not remove the air
induction system (air cleaner, hoses, etc.) unless
such removal is necessary for repair or
maintenance. Make sure that no one is near the
engine compartment before starting the vehicle
with the air induction system (air cleaner, hoses,
etc.) removed. Failure to do so can result in
serious personal injury.
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