fuel filter LINCOLN NAUTILUS 2021 Owners Manual

Recreationally Towing Your Vehicle - 2.0L,
FWD .............................................................314
Recreationally Towing Your Vehicle - 2.7L .......................................................................
314
Emergency Towing ......................................
315
Fuses
Fuse Precautions ..........................................
316
Under Hood Fuse Box ................................
316
Body Control Module Fuse Box ..............
326
Identifying Fuse Types ................................
331
Fuses – Troubleshooting ...........................
331
Maintenance
Maintenance Precautions .........................
332
Opening and Closing the Hood ..............
332
Under Hood Overview - 2.0L ...................
334
Under Hood Overview - 2.7L ...................
336
Engine Oil ......................................................
338
Checking the Coolant ................................
340
Changing the Engine Air Filter .................
344
Changing the Fuel Filter ............................
344
Drive Belt Routing Overview - 2.0L ........
345Drive Belt Routing Overview - 2.7L
.........
345
Changing the 12V Battery .........................
345
Adjusting the Headlamps ..........................
348
Exterior Bulbs ...............................................
350
Interior Bulbs ................................................
353
Vehicle Care
Cleaning Products .......................................
354
Cleaning the Exterior .................................
355
Waxing ............................................................
357
Cleaning the Interior ...................................
357
Repairing Minor Paint Damage ................
359
Body Styling Kits
Body Styling Kit Precautions ....................
360
Storing Your Vehicle
Preparing Your Vehicle for Storage .........
361
Removing Your Vehicle From Storage ......................................................................
362
Wheel and Tire Information
Locating the Tire label ...............................
363Department of Transportation Uniform Tire
Quality Grades .........................................
363
Information on the Tire Sidewall .............
364
Glossary of Tire Terminology ...................
369
Tire Replacement Requirements ............
369
Using Snow Chains .....................................
372
Tire Care
Checking the Tire Pressures ....................
374
Inflating the Tires .........................................
374
Inspecting the Tire for Wear .....................
375
Inspecting the Tire for Damage ...............
375
Inspecting the Wheel Valve Stems .........
376
Tire Rotation .................................................
376
Tire Sealant and Inflator Kit
What Is the Tire Sealant and Inflator Kit ......................................................................
378
Tire Sealant and Inflator Kit Precautions ......................................................................
378
Locating the Tire Sealant and Inflator Kit ......................................................................
378
Tire Sealant and Inflator Kit Components ......................................................................
379
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Table of Contents

SYMBOLS USED ON YOUR
VEHICLE
These are some of the symbols you may see
on your vehicle.
Air conditioning system
Air conditioning system lubricant
type
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Brake fluid - non petroleum based Brake system
Brake system
Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
Child seat tether anchor
Cruise control
Do not open when hot Electric Parking brake
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
Fasten seatbelt
Flammable
Front airbag
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Symbols GlossaryE162384 E231157 E270480 E332905 E71880 E231160 E67017

WHAT IS THE CATALYTIC
CONVERTER
The catalytic converter is part of your
vehicle's emissions system and filters harmful
pollutants from the exhaust gas.
CATALYTIC CONVERTER
PRECAUTIONS
WARNING: Do not park, idle or drive
your vehicle on dry grass or other dry
ground cover. The emission system heats
up the engine compartment and exhaust
system, creating the risk of fire. WARNING:
The normal operating
temperature of the exhaust system is very
high. Never work around or attempt to
repair any part of the exhaust system until
it has cooled. Use special care when
working around the catalytic converter.
The catalytic converter heats up to a very
high temperature after only a short period
of engine operation and stays hot after the
engine is switched off.
To avoid damaging the catalytic converter:
• Do not crank the engine for more than
10 seconds at a time.
• Do not run the engine with a spark plug
lead disconnected.
• Do not push-start or tow-start your
vehicle. Use booster cables.
See Jump
Starting Precautions (page 309).
• Use the correct fuel.
See Fuel and
Refueling (page 197).
• Do not switch the ignition off when your
vehicle is moving. •
Avoid running out of fuel.
• Have the items listed in scheduled
maintenance information performed
according to the specified schedule.
Note: Do not make any unauthorized
changes to your vehicle or engine. By law,
vehicle owners and anyone who
manufactures, repairs, or services a fleet of
vehicles are not permitted to intentionally
remove an emission control device or
prevent it from working.
CATALYTIC CONVERTER –
TROUBLESHOOTING
Catalytic Converter – Warning Lamps
Your vehicle has an on-board diagnostics
system that monitors the emission control
system. If any of the following warning lamps
illuminate, this may indicate that the on-board
diagnostics system has detected an emission
control system malfunction.
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REDUCED ENGINE PERFORMANCE
WARNING: If you continue to drive
your vehicle when the engine is
overheating, the engine could stop without
warning. Failure to follow this instruction
could result in the loss of control of your
vehicle.
If the engine coolant temperature gauge
needle moves to the upper limit position, the
engine is overheating.
See What Is the
Engine Coolant Temperature Gauge (page
139).
You must only drive your vehicle for a short
distance if the engine overheats. The
distance you can travel depends on ambient
temperature, vehicle load and terrain. The
engine continues to operate with limited
power for a short period of time.
If the engine temperature continues to rise,
the fuel supply to the engine reduces. The
air conditioning switches off and the engine
cooling fan operates continually. 1. Gradually reduce your speed and stop
your vehicle as soon as it is safe to do
so.
2. Immediately switch the engine off to prevent severe engine damage.
3. Wait for the engine to cool down.
4. Check the coolant level.
See Checking
the Coolant (page 340).
5. Have your vehicle checked as soon as possible.
COLD WEATHER PRECAUTIONS
The functional operation of some
components and systems can be affected at
temperatures below approximately
-13°F
(-25°C).
BREAKING-IN
You need to break in new tires for
approximately
300 mi (480 km). During this
time, your vehicle may exhibit some unusual
driving characteristics. DRIVING THROUGH WATER WARNING:
Do not drive through
flowing or deep water as you may lose
control of your vehicle.
Note: Driving through standing water can
cause vehicle damage.
Note: Engine damage can occur if water
enters the air filter.
Before driving through standing water, check
the depth. Never drive through water that is
higher than the bottom of the front rocker
area of your vehicle.
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2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Driving Hints

CHANGING THE ENGINE AIR
FILTER
WARNING: To reduce the risk of
vehicle damage and personal burn injuries,
do not start your engine with the air
cleaner removed and do not remove it
while the engine is running.
When changing the air filter element, use
only the air filter element listed.
See
Capacities and Specifications (page 400).
For turbocharged equipped vehicles: When
servicing the air cleaner, it is important that
no foreign material enter the air induction
system. The engine and turbocharger are
susceptible to damage from even small
particles.
Change the air filter element at the proper
interval. See Scheduled Maintenance (page
459
). Note:
Failure to use the correct air filter
element may result in severe engine
damage. The customer warranty may be
void for any damage to the engine if the
correct air filter element is not used. 1. Release the clamps that secure the air
filter housing cover.
2. Carefully lift the air filter housing cover.
3. Remove the air filter element from the air
filter housing.
4. Wipe any dirt or debris from the air filter housing and cover to make sure no dirt
gets in the engine and to make sure you
have a good seal. 5.
Install a new air filter element. Be careful
not to crimp the filter element edges
between the air filter housing and cover.
This could cause filter damage and allow
unfiltered air to enter the engine if not
properly seated.
6. Install the air filter housing cover.
7. Engage the clamps to secure the air filter
housing cover to the air filter housing.
CHANGING THE FUEL FILTER
Your vehicle has a lifetime fuel filter that
integrates with the fuel tank. It does not need
regular maintenance or replacement.
344
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PREPARING YOUR VEHICLE FOR
STORAGE
If you plan on storing your vehicle for 30
days or more, the following maintenance
recommendations ensures your vehicle stays
in good operating condition.
Under various conditions, long-term storage
may lead to degraded engine performance
or failure unless you use specific precautions
to preserve your vehicle.
General
•
Store all vehicles in a dry, ventilated
place.
• If vehicles are stored outside, they
require regular maintenance to protect
against rust and weather damage.
• Make sure all linkages, cables, levers and
pins under your vehicle are covered with
grease to prevent rust. •
Move vehicles at least 25 ft (7.5 m) every
15 days to lubricate working parts and
prevent corrosion.
• Fill the fuel tank with high-quality fuel
until the first automatic shutoff of the fuel
pump nozzle.
Engine
• Change the engine oil and filter prior to
storage because used engine oil contains
contaminants which may cause engine
damage.
• Start the engine every 15 days for a
minimum of 15 minutes. Run at fast idle
with the climate controls set to defrost
until the engine reaches normal
operating temperature.
• With your foot on the brake, shift through
all the gears while the engine is running. Body
•
Wash your vehicle thoroughly to remove
dirt, grease, oil, tar or mud from exterior
surfaces, rear-wheel housings and the
underside of front fenders.
• Periodically wash your vehicle if it is
stored in exposed locations.
• Touch-up exposed or primed metal to
prevent rust.
• Cover chrome and stainless steel parts
with a thick coat of auto wax to prevent
discoloration. Re-wax as necessary when
you wash your vehicle.
• Lubricate all hood, door and luggage
compartment hinges and latches with a
light grade oil.
• Cover interior trim to prevent fading.
• Keep all rubber parts free from oil and
solvents.
361
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Storing Your Vehicle

ENGINE OIL CAPACITY AND
SPECIFICATION - 2.0L
Use oil that meets the defined specification
and viscosity grade.
If you do not use oil that meets the defined
specification and viscosity grade, it could
result in:
•
Component damage that your vehicle
warranty does not cover.
• Longer engine cranking periods.
• Increased emission levels. •
Reduced vehicle performance.
• Reduced fuel economy. An oil that displays this symbol conforms to
current engine, emission system and fuel
economy performance standards of ILSAC.
We recommend Motorcraft motor oil for your
vehicle. If Motorcraft oil is not available, use
motor oils of the recommended viscosity
grade that meet API SP requirements and
display the API Certification Mark for gasoline
engines.
Do not use supplemental engine oil additives
because they are unnecessary and could
lead to engine damage that your vehicle
warranty does not cover.
Capacities Including the Oil Filter
Variant
5.5 qt (5.2 L)
All.
402
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An oil that displays this symbol conforms to
current engine, emission system and fuel
economy performance standards of ILSAC.
We recommend Motorcraft motor oil for your
vehicle. If Motorcraft oil is not available, use
motor oils of the recommended viscosity
grade that meet API SP requirements and
display the API Certification Mark for gasoline
engines.Do not use supplemental engine oil additives
because they are unnecessary and could
lead to engine damage that your vehicle
warranty does not cover.
Capacities Including the Oil Filter
Variant
6.0 qt (5.7 L)
All.
Materials Specification
Name
WSS-M2C961-A1
Motorcraft® SAE 5W-30 Synthetic Blend Motor Oil(U.S.)
Motorcraft® SAE 5W-30 Super Premium Motor Oil / Huile moteur de très haute
qualité SAE 5W-30 Motorcraft®(Canada)
XO-5W30-Q1SP(U.S.)
CXO-5W30-LSP6(Canada)
405
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Capacities and Specifications

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.
460
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance

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.
471
2021 Nautilus (CD9) Canada/United States of America, enUSA, Edition date: 202011, First-Printing Scheduled Maintenance