Ford Fusion (2018 year). Manual — part 66

WARNINGS

Only use brake fluid from a sealed
container. Contamination with dirt,
water, petroleum products or other

materials may result in brake system
damage or failure. Failure to adhere to this
warning could result in the loss of vehicle
control, serious personal injury or death.

Do not allow the fluid to touch your
skin or eyes. If this happens, rinse the
affected areas immediately with

plenty of water and contact your physician.

A fluid level between the MAX and
MIN lines is within the normal
operating range and there is no need

to add fluid. A fluid level not in the normal
operating range could compromise the
performance of the system. Have your
vehicle checked immediately.

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To avoid fluid contamination, the reservoir
cap must remain in place and fully tight,
unless you are adding fluid.

Only use fluid that meets Ford
specifications. See Capacities and
Specifications (page 312).

WASHER FLUID CHECK

WARNING

If you operate your vehicle in
temperatures below 40°F (5°C), use
washer fluid with antifreeze

protection. Failure to use washer fluid with
antifreeze protection in cold weather could
result in impaired windshield vision and
increase the risk of injury or accident.

Add fluid to fill the reservoir if the level is
low. Only use a washer fluid that meets
Ford specifications. See Capacities and
Specifications (page 312).

State or local regulations on volatile
organic compounds may restrict the use
of methanol, a common windshield washer
antifreeze additive. Washer fluids
containing non-methanol antifreeze
agents should be used only if they provide
cold weather protection without damaging
the vehicle’s paint finish, wiper blades or
washer system.

FUEL FILTER

Your vehicle is equipped with a lifetime
fuel filter that is integrated with the fuel
tank. Regular maintenance or replacement
is not needed.

CHANGING THE 12V BATTERY

WARNINGS

Batteries normally produce explosive
gases which can cause personal
injury. Therefore, do not allow

flames, sparks or lighted substances to
come near the battery. When working near
the battery, always shield your face and
protect your eyes. Always provide correct
ventilation.

WARNINGS

When lifting a plastic-cased battery,
excessive pressure on the end walls
could cause acid to flow through the

vent caps, resulting in personal injury and
damage to the vehicle or battery. Lift the
battery with a battery carrier or with your
hands on opposite corners.

Keep batteries out of reach of
children. Batteries contain sulfuric
acid. Avoid contact with skin, eyes or

clothing. Shield your eyes when working
near the battery to protect against possible
splashing of acid solution. In case of acid
contact with skin or eyes, flush
immediately with water for a minimum of
15 minutes and get prompt medical
attention. If acid is swallowed, call a
physician immediately.

Battery posts, terminals and related
accessories contain lead and lead
compounds. Wash hands after

handling.

Your vehicle has a Motorcraft®
maintenance-free battery which normally
does not require additional water during
its life of service.

Note: If your vehicle's battery has a cover
or shield, make sure it is reinstalled after the
battery has been cleaned or replaced.

Note: See an authorized dealer for low
voltage battery access, testing, or
replacement.

When a low voltage battery replacement
is necessary, see an authorized dealer to
replace the low voltage battery with a Ford
recommended replacement low voltage
battery that matches the electrical
requirements of the vehicle.

To ensure proper operation of the battery
management system (BMS), do not allow
a technician to connect any electrical
device ground connection directly to the
low voltage battery negative post. A
connection at the low voltage battery
negative post can cause inaccurate
measurements of the battery condition
and potential incorrect system operation.

Note: If a person adds electrical or
electronic accessories or components to the
vehicle, the accessories or components may
adversely affect the low voltage battery
performance and durability and may also
affect the performance of other electrical
systems in the vehicle.

For longer, trouble-free operation, keep the
top of the battery clean and dry. Also,
make certain the battery cables are always
tightly fastened to the battery terminals.

If you see any corrosion on the battery or
terminals, remove the cables from the
terminals and clean with a wire brush. You
can neutralize the acid with a solution of
baking soda and water.

When a battery replacement is required,
the battery should only be replaced with
a Ford recommended replacement battery
that matches the electrical requirements
of the vehicle.

Because your vehicle’s engine is
electronically-controlled by a computer,
some engine control settings are
maintained by power from the low voltage
battery. Some engine computer settings,
like the idle trim and fuel trim strategy,
optimize the driveability and performance
of the engine. Some other computer
settings, like the clock and radio station
presets, are also maintained in memory by
power from the low voltage battery. When
a technician disconnects and connects the
low voltage battery, these settings are
erased. Complete the following procedure
in order to restore the settings:

1.

With the vehicle at a complete stop,
set the parking brake.

2. Shift into park (P).

3. Switch off all accessories.

4. Fully press the brake pedal and start

the vehicle.

5. Run the engine until it reaches normal

operating temperature. While the
engine is warming up, complete the
following: Reset the clock. See Audio
System (page 338). Reset the power
windows bounce-back feature. See
Windows and Mirrors (page 83).
Reset the radio station presets. See
Audio System (page 338).

6. Allow the engine to idle for at least one

minute. If the engine turns off, press
the accelerator pedal to start the
engine.

7.

While the engine is running, press the
brake pedal and shift into neutral (N).

8. Allow the engine to run for at least one

minute by pressing on the accelerator
pedal.

9. Drive the vehicle at least 12 mi (20 km)

to completely relearn the idle and fuel
trim strategy.

Note: If you do not allow the engine to
relearn the idle and fuel trim strategy, the
idle quality of your vehicle may be adversely
affected until the engine computer
eventually relearns the idle trim and fuel
trim strategy.

Make sure that you dispose of old batteries
in an environmentally friendly way. Seek
advice from your local authority about
recycling old batteries.

CHECKING THE WIPER
BLADES

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Run the tip of your fingers over the edge of
the blade to check for roughness.

Clean the wiper blades with washer fluid
or water applied with a soft sponge or
cloth.

CHANGING THE WIPER
BLADES

The wiper arms can be manually moved
when the ignition is off. This allows for ease
of blade replacement and cleaning under
the blades.

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1

1

2

1.

Pull the wiper blade and arm away
from the glass. Press the locking
buttons together.

2. Rotate and remove the wiper blade.

3. Install in the reverse order.

Note: Make sure that the wiper blade locks
into place. Lower the wiper arm and blade
back to the windshield. The wiper arms will
automatically return to their normal position
when the ignition is turned on.

Replace wiper blades at least once per
year for optimum performance.

Poor wiper quality can be improved by
cleaning the wiper blades and the
windshield.

ADJUSTING THE HEADLAMPS

Vertical Aim Adjustment

The headlamps on your vehicle are
properly aimed at the assembly plant. If
your vehicle has been in an accident, the
alignment of your headlamps should be
checked by your authorized dealer.

Headlamp Aiming Target

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8 feet (2.4 meters)

A

Center height of lamp to ground

B

25 feet (7.6 meters)

C

Horizontal reference line

D

Vertical Aim Adjustment Procedure

1.

Park the vehicle directly in front of a
wall or screen on a level surface,
approximately 25 ft (7.6 m) away.

2. Measure the height of the headlamp

bulb center from the ground and mark
an 8 ft (2.4 m) horizontal reference line
on the vertical wall or screen at this
height.

Note: To see a clearer light pattern for
adjusting, you may want to block the light
from one headlamp while adjusting the
other.

3. Turn on the low beam headlamps to

illuminate the wall or screen and open
the hood.

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4. On the wall or screen you will observe

a flat zone of high intensity light
located at the top of the right hand
portion of the beam pattern. If the top
edge of the high intensity light zone is
not at the horizontal reference line, the
headlamp will need to be adjusted.