2021 LINCOLN NAUTILUS service interval

To top up the coolant level do the following:
1. Unscrew the cap slowly. Any pressure
escapes as you unscrew the cap.
2. Add enough prediluted coolant to reach
the correct level.
Note: We do not recommend the use of
recycled coolant.
3. Replace the coolant reservoir cap. Turn the cap clockwise until it contacts the
hard stop.
4. Check the coolant level in the coolant reservoir the next few times you drive
your vehicle. If necessary, repeat step 2.
If you have to add more than 1.1 qt (1 L) of
engine coolant per month, have your vehicle
checked as soon as possible. Operating an
engine with a low level of coolant can result
in engine overheating and possible engine
damage.
In case of emergency, you can add a large
amount of water without engine coolant in
order to reach a vehicle service location.
Service your vehicle as soon as possible. Water alone, without engine coolant, can
cause engine damage from corrosion,
overheating or freezing.
Do not use the following as a coolant
substitute, as they can cause engine damage
from overheating or freezing:
•
Alcohol.
• Methanol.
• Brine.
• Any coolant mixed with alcohol or
methanol antifreeze.
Do not add extra inhibitors or additives to
the coolant. These can be harmful and
compromise the corrosion protection of the
coolant.
Severe Climates
If you drive in extremely cold climates, you
may need to increase the coolant
concentration above 50%. Note:
A coolant concentration of 60%
provides improved freeze point protection.
Coolant concentrations above 60% decrease
the overheat protection characteristics of
the coolant and could cause engine
damage.
If you drive in extremely hot climates, you
may need to decrease the coolant
concentration to 40%.
Note: Coolant concentrations below 40%
decrease the freeze and corrosion protection
characteristics of the coolant and could
cause engine damage.
Coolant Change
Change the coolant at specific mileage
intervals. Refer to the scheduled
maintenance information.
See Normal
Scheduled Maintenance (page 463).
Note: Dispose of used coolant in the
appropriate manner.
Follow your community's regulations and
standards for recycling and disposing of
automotive fluids.
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GENERAL MAINTENANCE
INFORMATION
Why Maintain Your Vehicle?
Carefully following the maintenance
schedule helps protect against major repair
expenses resulting from neglect or
inadequate maintenance and may help to
increase the value of your vehicle when you
sell or trade it. Keep all receipts for
completed maintenance with your vehicle.
It is important that you have your vehicle
serviced at the proper times. These intervals
serve two purposes: first is to maintain the
reliability of your vehicle and the second is
to keep the cost of owning your vehicle
down.
It is your responsibility to have all scheduled
maintenance performed and to make sure
that the materials used meet the
specifications identified in this owner's
manual. See Capacities and Specifications
(page 400).
Failure to perform scheduled maintenance
and regularly inspect your vehicle may result
in vehicle damage not covered by the vehicle
Warranty.
Why Maintain Your Vehicle at Your
Dealership?
Our Genuine Replacement Parts
Dealerships stock our parts and our
authorized branded re-manufactured
replacement parts. These parts meet or
exceed our specifications. Parts installed at
your dealership carry a nationwide 24-month
or unlimited mile (kilometer) parts and labor
limited warranty.
If you do not use our authorized parts they
may not meet our specifications and could
affect emissions compliance.
Protecting Your Investment
Maintenance is an investment that pays
dividends in the form of improved reliability,
durability and resale value. To maintain the
proper performance of your vehicle and its
emission control systems, make sure you
have scheduled maintenance performed at
the designated intervals.
Your vehicle comes with the Intelligent
Oil-Life Monitor system, a message appears
in the information display at the proper oil
change interval. This interval may be up to
one year or
10,000 mi (16,000 km), hybrid
vehicles could exceed 10,000 mi (16,000 km).
When the oil change message appears in
the information display, it is time for an oil
change. Make sure you perform the oil
change within two weeks or 500 mi (800 km)
of the message appearing. Make sure to
reset the Intelligent Oil-Life Monitor after
each oil change. See Resetting the Engine
Oil Change Reminder
(page 339).
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If your information display resets prematurely
or becomes inoperative, you should perform
the oil change interval at six months or
5,000 mi (8,000 km) from your last oil
change. Never exceed one year or 10,000 mi
(16,000 km)
between oil change intervals.
You can drive high performance vehicles in
such a way that may lead to higher oil
consumption including extended time at high
engine speeds, high loads, engine braking,
hard cornering maneuvers, track and off-road
usage. Under these conditions, oil
consumption of approximately 1 quart per
500 miles (1 liter per 800 km) is possible.
Check the engine oil level at every refueling
and adjust to maintain proper levels to avoid
engine damage.
It is important to rely upon your dealership
to properly diagnose and repair your vehicle. We strongly recommend only using our
genuine or our authorized re-manufactured
replacement parts engineered for your
vehicle.
Additives and Chemicals
We do not recommend using chemicals or
additives not approved by us as part of your
vehicle
’s normal maintenance. Please consult
your warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is a normal
operating characteristic and, by itself, does
not necessarily indicate a concern or that the
fluid needs to be changed. Have discolored
fluids that also show signs of overheating or
foreign material contamination checked
immediately. Make sure to change the vehicle
’s oils and
fluids at the specified intervals or in
conjunction with a repair. Flushing is a viable
way to change fluid for many vehicle
sub-systems during scheduled maintenance.
It is critical that systems are flushed only with
new fluid that is the same as that required
to fill and operate the system or using our
approved flushing chemical.
Owner Checks and Services
Make sure you perform the following basic
maintenance checks and inspections. Check Every Month
The air filter restriction gauge. 1
The engine oil level.
Function of all interior and the exterior lights.
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Multi-Point Inspection
Steering and linkage
Exterior lamps operation
Tires including the spare for wear and proper pressure 2
Fluid levels 1
; fill if necessary
Windshield for cracks, chips or pits
For oil and fluid leaks
Washer spray and wiper operation
Half-shaft dust boots
1 Brake, coolant recovery reservoir, automatic transmission and window washer.
2 If your vehicle has a temporary mobility kit, check the tire sealant exp\
iration Use By date on the canister. Replace as needed.
Be sure to ask your dealership service
advisor or technician about the multi-point
vehicle inspection. It is a comprehensive way
to perform a thorough inspection of your
vehicle. Your checklist gives you immediate
feedback on the overall condition of your
vehicle. NORMAL SCHEDULED
MAINTENANCE
Oil Change Reminder
Your vehicle comes with an oil change
reminder that determines when you should
change the engine oil based on how you use
your vehicle.Your vehicle lets you know when an oil
change is due by displaying a message in
the information display.
The following table provides examples of
vehicle use and its impact on oil change
intervals. It is a guideline only. Actual oil
change intervals depend on several factors
and generally decrease with severity of use.
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Normal Maintenance Intervals
At Every Oil Change Interval as Indicated by the Information Display
1
Change the engine oil and filter. 2
Rotate the tires.
Perform a multi-point inspection, recommended.
Inspect the automatic transmission fluid level. Consult your dealer for \
requirements.
Inspect the brake pads, rotors, hoses and the parking brake.
Inspect the engine coolant level/strength and the hoses.
Inspect the exhaust system and the heat shields.
Inspect the rear axle and U-joints - all wheel drive only.
Inspect the half-shaft boots.
Inspect the steering linkage, ball joints, suspension, tire-rod ends, driveshaft and U-joints.
Inspect the tires, tire wear and measure the tread depth.
Inspect the wheels and related components for abnormal noise, wear, looseness or drag.
1 Do not exceed one year or 10,000 mi (16,000 km) between service intervals.
2 Reset the oil change reminder after engine oil and filter changes.
See Resetting the Engine Oil Change Reminder (page 339).
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Brake Fluid Maintenance
1
Change the brake fluid. 2
Every 3 Years
1 Perform this maintenance item every 3 years. Do not exceed the designated time for the interval.
2 Brake fluid servicing requires special equipment available at your authorize\
d dealer.
SPECIAL OPERATING CONDITIONS
SCHEDULED MAINTENANCE
If you operate your vehicle primarily in any
of the following conditions, you need to
perform extra maintenance as indicated. If
you operate your vehicle occasionally under
any of these conditions, it is not necessary
to perform the extra maintenance. For
specific recommendations, see your
dealership service advisor or technician.
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Axle and PTU maintenance: The Power
Transfer Unit (PTU) and rear axle (AWD only)
in your vehicle does not require any normal
scheduled maintenance. The PTU lubricant
may be more likely to require a fluid change
if the vehicle has extended periods of
extreme or severe duty cycle driving.
Changing or checking the PTU lubricant is
not necessary unless the unit has been
submerged in water, shows sign of leakage.
Contact your authorized dealer for service.
California fuel filter replacement
: If you
register your vehicle in California, the
California Air Resources Board has
determined that the failure to perform this
maintenance item does not nullify the
emission warranty or limit recall liability
before the completion of your vehicle's
useful life. We however, urge you to have all
recommended maintenance services
performed at the specified intervals and to
record all vehicle service. Engine air filter and cabin air filter
replacement
: The life of the engine air filter
and cabin air filter is dependent on exposure
to dusty and dirty conditions. Vehicles
operated in these conditions require frequent
inspection and replacement of the engine
air filter and cabin air filter.
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