2021 LINCOLN AVIATOR coolant

AUTO-START-STOP - EXCLUDING:
PLUG-IN HYBRID ELECTRIC
VEHICLE (PHEV)
The system helps reduce fuel consumption
by automatically stopping and restarting the
engine when your vehicle has stopped. The
engine restarts automatically when you
release the brake pedal.
In some situations, your vehicle may restart
automatically, for example:
•
To maintain interior comfort.
• To recharge the battery.
Note: Power assist steering turns off when
the engine is off.
Note: If your vehicle is flex fuel capable,
Auto-Start-Stop will be inhibited for a short
time after a refuel event while the system is
verifying the fuel type being used. WARNING: Apply the parking brake,
shift into park (P), switch the ignition off
and remove the key before you leave your
vehicle. Failure to follow this instruction
could result in personal injury or death. WARNING: Apply the parking brake,
shift into park (P), switch the ignition off
and remove the key before you open the
hood or have any service or repair work
completed. If you do not switch the ignition
off, the engine could restart at any time.
Failure to follow this instruction could result
in personal injury or death. WARNING: The system may require
the engine to automatically restart when
the auto-start-stop indicator illuminates
green or flashes amber. Failure to follow
this instruction could result in personal
injury.
The Auto-Start-Stop system status is
available at a glance within the information
display.
See Information Displays (page
134). Enabling Auto-Start-Stop
The system automatically enables every time
you start your vehicle if:
•
Your vehicle exceeds an initial speed of
3 mph (5 km/h)
after you have initially
started your vehicle.
• You have stopped your vehicle.
• Your foot is on the brake pedal.
• The driver door is closed.
• The interior compartment has cooled or
warmed to an acceptable level.
• The front windshield defroster is off.
• You have not turned the steering wheel
rapidly or you do not have it at a sharp
angle.
• The vehicle is not on a steep road grade.
• The battery is within optimal operating
conditions (battery state of charge and
temperature in range).
• The engine coolant is near operating
temperature.
• Elevation is below about
12,000 ft
(3,650 m).
• Ambient temperature is moderate.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Unique Driving Characteristics

Answer
Question
In order to make sure that the climate control system can begin heatingthe cabin or defrosting the windshield as soon as you request it, the engine coolant temperature has to be kept sufficiently hot. Keeping
the engine on is required to maintain the correct coolant temperature.
Why does my engine stay on when it is extremely cold outside?
Your hybrid vehicle can use E15 fuel (15% ethanol, 85% gasoline), butyou could notice slightly reduced fuel economy because ethanol
contains less energy per gallon than gasoline. Your hybrid vehicle is not designed to use E85 (85% ethanol).
Can I put E15 or E85 in my vehicle, and how will it affect my fuel
economy?
The high voltage battery system is designed to last the life of thevehicle and requires no maintenance.
How long will my high voltage battery last? Does it need maintenance?
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Unique Driving Characteristics

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 Gauges (page
126).
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 Engine
Coolant Check (page 390).
5. Have your vehicle checked as soon as possible.
ECONOMICAL DRIVING
Your fuel economy is affected by several
things, such as how you drive, the conditions
you drive under, and how you maintain your
vehicle.
You may improve your fuel economy by
keeping these things in mind:
• Accelerate and slow down in a smooth,
moderate fashion.
• Drive at steady speeds without stopping.
• Anticipate stops; slowing down may
eliminate the need to stop. •
Combine errands and minimize
stop-and-go driving.
• Close the windows for high-speed
driving.
• Drive at reasonable speeds (traveling at
55 mph [88 km/h] uses 15% less fuel than
traveling at 65 mph [105 km/h]).
• Keep the tires properly inflated and use
only the recommended size.
• Use the recommended engine oil.
• Perform all regularly scheduled
maintenance.
Avoid these actions; they reduce your fuel
economy:
• Sudden accelerations or hard
accelerations.
• Revving the engine before turning it off.
• Idle for periods longer than one minute.
• Warm up your vehicle on cold mornings.
• Use the air conditioner or front defroster.
• Use the speed control in hilly terrain.
• Rest your foot on the brake pedal while
driving.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Driving Hints

Protected Component
Fuse Rating
Fuse or Relay Number
Fuel pump.
30A
4
Powertrain control module keep alive power.
5A
5
Powertrain control module power.
20A
6
Canister vent solenoid.
20A
7
Evaporative leak control module.
Exhaust gas heat recovery.
Tank pressure control valve.
Refueling valve.
Vapor blocking valve.
Universal exhaust gas oxygen 11.
Universal exhaust gas oxygen 21.
Catalyst monitor sensor 12.
Catalyst monitor sensor 22.
Canister purge valve.
Cooling fan relay coil.
20A
8
Battery interrupt box.
Transmission oil pump.
Auxiliary coolant pump.
Fuel flap door.
Engine coolant bypass valve.
Active grille shutters.
Ignition coils.
20A
9
370
Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay Number
Rear blower motor.
20A
88
Trailer tow lighting module.
20A
91
Integrated spark control.
15A
95
Not used (spare).
15A
96
Electric A/C.
10A
97
High voltage positive temperature coefficient heater.
Traction battery coolant proportional valve.
10A
98
Not used (spare).
50A
103
Not used (spare).
50A
104
Not used (spare).
40A
105
Not used (spare).
40A
106
Not used (spare).
40A
107
Not used (spare).
20A
108
Passenger door module.
30A
109
Body control module voltage quality monitor feed.
30A
111
Left-hand rear electronic door.
20A
112
374
Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay Number
Battery electronic control module.
15A
146
Left-hand headlamp module.
30A
148
Right-hand headlamp module.
30A
149
Not used (spare).
40A
150
Transmission control module.
25A
155
DC/DC converter.
15A
159
Not used (spare).
10A
160
Low voltage service disconnect.
20A
168
Coolant pump.
10A
169
Traction battery coolant pump.
10A
170
Pedestrian sounder.
Center console blower.
10A
177
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse Panel
The fuse panel is under the instrument panel
to the left of the steering column. Note:
It may be easier to access the fuse
panel if you remove the finish trim piece.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Fuses

Brake fluid reservoir. See Brake Fluid Check (page 395).
D
Engine compartment fuse box.
See Fuses (page 368).
E
Engine coolant reservoir.
See Engine Coolant Check (page 390).
F
Air filter assembly.
See Changing the Engine Air Filter (page 389).
G
Washer fluid reservoir.
See Washer Fluid Check (page 401).
H
ENGINE OIL DIPSTICK MINA
MAXB ENGINE OIL CHECK
To check the engine oil level consistently
and accurately, do the following:
1.
Make sure the parking brake is on. Make
sure the transmission is in park (P) or
neutral (N).
2. Run the engine until it reaches normal operating temperature.
3. Make sure that your vehicle is on level ground.
4. Switch the engine off and wait 15 minutes
for the oil to drain into the oil pan.
Checking the engine oil level too soon
after you switch the engine off may result
in an inaccurate reading. 5. Open the hood.
See Opening and
Closing the Hood (page 384).
6. Remove the dipstick and wipe it with a clean, lint-free cloth.
See Under Hood
Overview (page 386).
7. Reinstall the dipstick and remove it again
to check the oil level. See Under Hood
Overview
(page 386).
8. Make sure that the oil level is between the maximum and minimum marks. If the
oil level is at the minimum mark, add oil
immediately.
See Capacities and
Specifications (page 450).
9. If the oil level is correct, replace the dipstick and make sure it is fully seated.
Note: Do not remove the dipstick when the
engine is running.
387
Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing MaintenanceE169062

1.
Remove the clips that secure the air filter
housing cover.
2. Using a screwdriver, loosen two clamps on either side of the air filter housing
cover. 3.
Gently pull the two boots back away from
the air filter housing cover.
4. Carefully lift the air filter housing cover.
5. Remove the air filter element from the air
filter housing.
6. Wipe any dirt or debris from the air filter housing and cover to make sure no dirt
gets in the engine and that you have a
good seal.
7. 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 it is
not properly seated.
8. Install the air filter housing cover.
9. Engage the clips to secure the air filter housing cover to the air filter housing.
10. Reconnect the two boots on the air filter
housing cover and torque to 3.69 lb.ft
(5 Nm). ENGINE COOLANT CHECK WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap with
a thick cloth to prevent the possibility of
scalding and slowly remove the cap.
Failure to follow this instruction could result
in personal injury. WARNING: Do not put coolant in the
windshield washer reservoir. If sprayed on
the windshield, coolant could make it
difficult to see through the windshield. WARNING:
To reduce the risk of
personal injury, make sure the engine is
cool before unscrewing the coolant
pressure relief cap. The cooling system is
under pressure. Steam and hot liquid can
come out forcefully when you loosen the
cap slightly.
390
Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing MaintenanceE294778