Ford Mustang (2018 year). Manual - part 59

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

1.

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

2. Measure the height from the center of

your headlamp (indicated by a 3.0
millimeter circle on the lens) to the
ground and mark an 8 foot (2.4 meter)
horizontal reference line on the vertical
wall or screen at this height (a piece of
masking tape works well).

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. Cover one of the headlamps
so no light hits the wall.

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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.

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5. Locate the vertical adjuster on each

headlamp. Use a Phillips #2
screwdriver to turn the adjuster either
clockwise or counterclockwise to
adjust the vertical aim of the
headlamp.

6. Repeat Steps 3 through 7 to adjust the

other headlamp.

7.

Close the hood and turn off the lamps.

Horizontal Aim Adjustment

The horizontal aim does not require any
adjustment for this vehicle. If a fault
occurs, have the system checked by an
authorized dealer.

CHANGING A BULB

Lamp Assembly Condensation

Exterior lamps have vents to
accommodate normal changes in pressure.
Condensation can be a natural occurrence
of this design. When moist air enters the
lamp assembly through the vents, there is
a possibility that condensation can occur
in cold temperatures. When normal
condensation occurs, a thin film of mist
can form on the interior of the lens. The
mist eventually clears and exits through
the vents during normal operation. Clearing
time may take as long as 48 hours under
dry weather conditions.

Examples of acceptable condensation are:
•

Thin mist without streaks, drip marks
or droplets.

•

Fine mist that covers less than 50% of
the lens.

Examples of unacceptable moisture are:
•

Water puddle inside the lamp.

•

Large water droplets, drip marks or
streaks on the interior of the lens.

If any of the above conditions of
unacceptable moisture are present,
contact an authorized.

Replacing Reverse Lamp Bulbs

1.

Make sure the lighting control is in the
off position.

2. Locate the reverse lamp bulb under the

rear bumper of your vehicle.  To access
the bulb, reach behind the bumper.

3. Disconnect the electrical sensor from

the bulb by pulling it straight off.

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4. Rotate the bulb counterclockwise and

remove it from the reverse lamp
assembly.

LED Lamps

LED lamps are not serviceable items.
Contact an authorized dealer if they fail.

The following are LED lamps:
•

Headlamps.

•

Rear lamp.

•

Brake lamp.

•

Front fog lamp.

•

Front sidemarker

•

Daytime running lamp.

•

Central high mounted brake lamp.

•

Front direction indicator.

•

Rear direction indicator lamp.

•

License plate lamp.

BULB SPECIFICATION CHART

Replacement bulbs are specified in the
chart below. Headlamp bulbs must be
marked with an authorized "D.O.T." for
North America and an "E" for Europe to

make sure lamp performance, light
brightness and pattern and safe visibility.
The correct bulbs do not damage the lamp
assembly or void the lamp assembly
warranty and provide quality bulb
illumination time.

Trade name

Function

LED

Headlamps

LED

Front park and Direction indicators

LED

Front sidemarker

LED

Front fog lamp

LED

Rear lamp, brake lamp and direction
indicator lamp*

194

Rear sidemarker

LED

High-mount brake lamp*

3156 or 3157

Backup lamp

LED

License plate lamp*

W5W

Dome and Map lamp

W5W

Glove box and Cargo lamp

To replace all instrument panel lights, contact an authorized dealer

* Contact an authorized dealer to replace the bulb.

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.

Note:  Failure to use the correct air filter
element may result in severe engine
damage.  Your warranty may not cover
these damages.

Only use the specified replacement air
filter.  See Motorcraft Parts (page 287).

For EcoBoost 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
intervals.  See Scheduled Maintenance
(page 433).

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1.

Release the two 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 that 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 it is not properly
seated.

6. Replace the air filter housing cover.

7.

Engage the clamps to secure the air
filter housing cover to the air filter
housing.