2023 LINCOLN AVIATOR air condition

Recycled Coolant
We do not recommend the use of recycled
coolant as an approved recycling process is
not yet available.
Note:Dispose of used coolant in the
appropriate manner.
Follow your community's regulations and
standards for recycling and disposing of
automotive fluids.
Severe Climates
If you drive in extremely cold climates:
• It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60% provides
improved freeze point protection.
• Coolant concentrations above 60%
decrease the overheat protection
characteristics of the coolant and may
cause engine damage.If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• A coolant concentration of 40% provides
improved overheat protection.
• Coolant concentrations below 40%
decrease the overheat and corrosion
protection characteristics of the coolant
and may cause engine damage.
Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection.
Coolant Change
At specific mileage intervals, as listed in the
scheduled maintenance information, the
coolant should be changed. Add prediluted
coolant approved to the correct specification.
See Capacities and Specifications (page
460).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient temperature,
vehicle load and terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat,
the coolant temperature gauge
moves toward the red zone:
A warning lamp illuminates and a
message may appear in the
information display.
If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating cylinder
operation. Each disabled cylinder acts as an
air pump and cools the engine.
When this occurs, your vehicle still operates,
however:
• Engine power is limited.
• The air conditioning system turns off.
406
Maintenance

If you tow a trailer with your vehicle, the
engine may temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long or
steep grade in high ambient temperatures.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
You may notice a reduction in vehicle speed
caused by reduced engine power in order
to manage the engine coolant temperature.
Your vehicle may enter this mode if certain
high-temperature and high-load conditions
take place. The amount of speed reduction
depends on vehicle loading, grade and
ambient temperature. If this occurs, there is
no need to stop your vehicle. You can
continue to drive.
The air conditioning may automatically turn
on and off during severe operating
conditions to protect the engine from
overheating. When the coolant temperature
decreases to the normal operating
temperature, the air conditioning turns on.If the coolant temperature gauge moves fully
into the red zone, or if the coolant
temperature warning or service engine soon
messages appear in your information display,
do the following:
1. Stop your vehicle as soon as it is safe to
do so. Fully apply the parking brake, shift
into park (P) or neutral (N).
2. Leave the engine running until the
coolant temperature gauge needle
returns to the normal position. If the
temperature does not drop after several
minutes, follow the remaining steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
4. If the coolant level is at or below the
minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the
engine and continue.AUTOMATIC TRANSMISSION
FLUID CHECK
If required, have an authorized dealer check
and change the transmission fluid at the
correct service interval. See Scheduled
Maintenance (page 579).
The automatic transmission does not have
a transmission fluid dipstick.
Refer to your scheduled maintenance
information for scheduled intervals for fluid
checks and changes. Your transmission does
not consume fluid. However, if the
transmission slips, shifts slowly or if you
notice a sign of leaking fluid, contact an
authorized dealer.
Do not use supplemental transmission fluid
additives, treatments or cleaning agents. The
use of these materials may affect
transmission operation and result in damage
to internal transmission components.
408
Maintenance

• Avoid cleaners or polishes that increase
the gloss of the upper portion of the
instrument panel. The dull finish in this
area helps protect you from undesirable
windshield reflection.
• Do not use any household cleaning
products or glass cleaners as these may
damage the finish of the instrument
panel, interior trim and cluster lens.
• Wash or wipe your hands clean if you
have been in contact with certain
products such as insect repellent and
suntan lotion to avoid possible damage
to the interior painted surfaces.
• Do not allow air fresheners and hand
sanitizers to spill onto interior surfaces.
If a spill occurs, wipe off immediately.
Your warranty may not cover these
damages.
If a staining liquid like coffee or juice has
been spilled on the instrument panel or on
interior trim surfaces:
1. Wipe up spilled liquid using a clean, soft
cloth as quickly as possible.2. Use Motorcraft Premium Leather and
Vinyl Cleaner or a commercially available
leather cleaning product for automotive
interiors. Test any cleaner or stain
remover on an inconspicuous area.
3. Alternatively, wipe the surface with a
clean, soft cloth and a mild soap and
water solution. Dry the area with a clean,
soft cloth.
4. If necessary, apply more soap and water
solution or cleaning product to a clean,
soft cloth and press it onto the soiled
area. Allow this to set at room
temperature for 30 minutes.
5. Remove the soaked cloth, then with a
clean, damp cloth, use a rubbing motion
for 60 seconds on the soiled area.
6. Dry the area with a clean, soft cloth.
CLEANING LEATHER SEATS
Note:Follow the same procedure as
cleaning leather seats for cleaning leather
instrument panels and leather interior trim
surfaces.For routine cleaning, wipe the surface with
a soft, damp cloth and a mild soap and water
solution. Dry the area with a clean, soft cloth.
For cleaning and removing stains such as
dye transfer, use Motorcraft Premium Leather
and Vinyl Cleaner or a commercially available
leather cleaning product for automotive
interiors.
Note:Test any cleaner or stain remover on
an inconspicuous area.
You should:
• Remove dust and loose dirt with a
vacuum cleaner.
• Clean and treat spills and stains as soon
as possible.
Do not use the following products as these
may damage the leather:
• Oil and petroleum or silicone-based
leather conditioners.
• Household cleaners.
• Alcohol solutions.
• Solvents or cleaners intended specifically
for rubber, vinyl and plastics.
426
Vehicle Care

REPAIRING MINOR PAINT
DAMAGE
Authorized dealers have touch-up paint to
match your vehicle’s color. Your vehicle
color code is printed on a sticker on the front,
left-hand side door jamb. Take your color
code to your authorized dealer to make sure
you get the correct color.
Before repairing minor paint damage, use a
cleaner to remove particles such as bird
droppings, tree sap, insect deposits, tar
spots, road salt and industrial fallout.
Read the instructions before using cleaning
products.
CLEANING THE WHEELS
1. Regularly clean them with a wheel
cleaner. We recommend that you use
Ford approved wheel cleaner if available.
2. Remove dirt and brake dust with a
sponge.3. Remove tar and grease with a bug and
tar remover. We recommend that you use
Ford approved bug and tar remover if
available.
4. Thoroughly rinse the wheels with water
after cleaning.
If you intend on parking your vehicle for an
extended period after cleaning the wheels
with a wheel cleaner, drive your vehicle for
a few minutes before doing so. This reduces
the risk of corrosion of the brake discs, brake
pads and linings.
Do not clean the wheels when they are hot.
Note: Some car washes could damage
wheel rims and covers.
Note: Using non-recommended cleaners,
harsh cleaning products, chrome wheel
cleaners or abrasive materials could
damage wheel rims and covers.
VEHICLE STORAGE
If you plan on storing your vehicle for 30
days or more, read the following
maintenance recommendations to make sure
your vehicle stays in good operating
condition.
We engineer and test all motor vehicles and
their components for reliable, regular driving.
Under various conditions, long-term storage
may lead to degraded engine performance
or failure unless you use specific precautions
to preserve engine components.
General
• Store all vehicles in a dry, ventilated
place.
• Protect from sunlight, if possible.
• If vehicles are stored outside, they
require regular maintenance to protect
against rust and damage.
427
Vehicle Care

The traction grades, from highest to
lowest are AA, A, B, and C. The grades
represent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction
performance.
Temperature A B C
WARNING: The temperature
grade for this tire is established for a
tire that is properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive loading,
either separately or in combination,
can cause heat buildup and possible
tire failure.
The temperature grades are A (the
highest), B and C, representing the tire’s
resistance to the generation of heat and
its ability to dissipate heat when tested
under controlled conditions on a
specified indoor laboratory test wheel.
Sustained high temperature can causethe material of the tire to degenerate
and reduce tire life, and excessive
temperature can lead to sudden tire
failure. The grade C corresponds to a
level of performance which all
passenger car tires must meet under the
Federal Motor Vehicle Safety Standard
No. 139. Grades B and A represent
higher levels of performance on the
laboratory test wheel than the minimum
required by law.
Glossary of Tire Terminology
*Tire label: A label showing the original
equipment tire sizes, recommended
inflation pressure and the maximum
weight the vehicle can carry.
*Tire Identification Number (TIN): A
number on the sidewall of each tire
providing information about the tire
brand and manufacturing plant, tire size
and date of manufacture. Also referred
to as DOT code.
*Inflation pressure: A measure of the
amount of air in a tire.*Standard load: A class of P-metric or
Metric tires designed to carry a
maximum load at set pressure. For
example: For P-metric tires 35 psi
(2.4 bar) and for Metric tires 36 psi
(2.5 bar). Increasing the inflation
pressure beyond this pressure will not
increase the tire’s load carrying
capability.
*Extra load: A class of P-metric or Metric
tires designed to carry a heavier
maximum load at 42 psi (2.9 bar).
Increasing the inflation pressure beyond
this pressure will not increase the tire’s
load carrying capability.
*kPa: Kilopascal, a metric unit of air
pressure.
*PSI: Pounds per square inch, a standard
unit of air pressure.
*Cold tire pressure: The tire pressure
when the vehicle has been stationary
and out of direct sunlight for an hour or
more and prior to the vehicle being
driven for 1 mi (1.6 km).
433
Wheels and Tires

Inspecting Your Tires and Wheel Valve
Stems
Periodically inspect the tire treads for
uneven or excessive wear and remove
objects such as stones, nails or glass
that may be wedged in the tread
grooves. Check the tire and valve stems
for holes, cracks, or cuts that may permit
air leakage and repair or replace the tire
and replace the valve stem. Inspect the
tire sidewalls for cracking, cuts, bruises
and other signs of damage or excessive
wear. If internal damage to the tire is
suspected, have the tire demounted and
inspected in case it needs to be repaired
or replaced. For your safety, tires that
are damaged or show signs of excessive
wear should not be used because they
are more likely to blow out or fail.
Improper or inadequate vehicle
maintenance can cause tires to wear
abnormally. Inspect all your tires,
including the spare, frequently, and
replace them if one or more of the
following conditions exist:Tire Wear
E142546
When the tread is worn down to one
sixteenth of an inch (2 mm), tires must
be replaced to help prevent your vehicle
from skidding and hydroplaning. Built-in
treadwear indicators, or wear bars,
which look like narrow strips of smooth
rubber across the tread will appear on
the tire when the tread is worn down to
one sixteenth of an inch (2 mm).
When the tire tread wears down to the
same height as these wear bars, the tire
is worn out and must be replaced.Damage
Periodically inspect the tire treads and
sidewalls for damage (such as bulges in
the tread or sidewalls, cracks in the
tread groove and separation in the tread
or sidewall). If damage is observed or
suspected, have the tire inspected by a
tire professional. Tires can be damaged
during off-road use, so inspection after
off-road use is also recommended.
Age
WARNING: Tires degrade over
time depending on many factors such
as weather, storage conditions, and
conditions of use (load, speed, inflation
pressure) the tires experience
throughout their lives.
440
Wheels and Tires

conditions. Like any tire, summer tire
performance is affected by tire wear and
environmental conditions. If you must drive
in those conditions, we recommend using
Mud and Snow (M+S, M/S), All-season or
Snow tires.
Always store your summer tires indoors at
temperatures above 19°F (-7°C). The rubber
compounds used in these tires lose flexibility
and may develop surface cracks in the tread
area at temperatures below 19°F (-7°C). If the
tires have been subjected to 19°F (-7°C) or
less, warm them in a heated space to at least
41°F (5°C) for at least 24 hours before
installing them on a vehicle, or moving the
vehicle with the tires installed, or checking
tire inflation. Do not place tires near heaters
or heating devices used to warm the room
where the tires are stored. Do not apply heat
or blow heated air directly on the tires.
Always inspect the tires after storage periods
and before use.USING SNOW CHAINS
WARNING: Do not exceed 30 mph
(50 km/h). Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death.
WARNING: Do not use snow chains
on snow-free roads.
WARNING: Only fit snow chains to
specified tires.
WARNING: If your vehicle is fitted
with wheel trims, remove them before
fitting snow chains.
WARNING: Wheels and tires must
be the same size, load index and speed
rating as those originally fitted on the
vehicle. Use of any other tire or wheel can
affect the safety and performance of your
vehicle. Additionally, the use of
non-recommended tires and wheels can
cause steering, suspension, axle, transfer
case or power transfer unit failure. Follow
the recommended tire inflation pressures
found on the Safety Compliance
Certification label, or the Tire Label on the
B-Pillar or the edge of the driver door.
Failure to follow this instruction could result
in loss of vehicle control, vehicle rollover,
or personal injury or death.
Only use snow chains on rear wheels. Install
snow chains in pairs. Do not use
self-tensioning snow chains.
Only use snow chains on the following
specified tire sizes:
• 255/60R19
• Only install chains that are 10 mm or
less.
• 255/55R20
• Only install chains that are 10 mm or
less.
We recommend you use steel wheels of the
same size and specification if snow chains
are required because chains may chip
aluminum wheels.
Follow these guidelines when using snow
tires and traction devices:
445
Wheels and Tires

Air Conditioning System
WARNING: The air conditioning
refrigerant system contains refrigerant
under high pressure. Only qualified
personnel should service the air
conditioning refrigerant system. Opening
the air conditioning refrigerant system can
cause personal injury.
Capacities
Refrigerant Oil Refrigerant Variant
5.92 fl oz (175 ml) 35 oz (0.99 kg) All.
Materials
Specification Name
WSS-M17B21-A R-1234yf Refrigerant(U.S.)
R-1234yf Refrigerant / Frigorigène R-1234yf(Canada)
YN-33-A(U.S.)
HS7Z-19B519-BA(Canada)
WSS-M2C300-A2 Motorcraft® R-1234yf Refrigerant PAG Oil(U.S.)
Motorcraft® R-1234yf Refrigerant PAG Oil / Huile PAG pour frigorigène R-1234yf
Motorcraft®(Canada)
YN-35(U.S. & Canada)
466
Capacities and Specifications