maintenance LINCOLN MKZ 2015 Owner's Guide

6F50/6F55 Transmission (If Equipped)
WARNINGS
The dipstick cap and surrounding
components may be hot; gloves are
recommended. Use gloves when moving the air filter
assembly. Components will be hot.
Note:
Automatic transmission fluid expands
when warmed. To obtain an accurate fluid
check, drive the vehicle until it is warmed up
(approximately 20 miles [30 kilometers]). If
your vehicle has been operated for an
extended period at high speeds, in city traffic
during hot weather or pulling a trailer, the
vehicle should be turned off until normal
operating temperatures are reached to allow
the fluid to cool before checking. Depending
on vehicle use, cooling times could take up
to 30 minutes or longer. Refer to your scheduled maintenance
information for scheduled intervals for fluid
checks and changes. Your transmission does
not consume fluid. However, the fluid level
should be checked if the transmission is not
working properly. For example, if the
transmission slips or shifts slowly or if you
notice some sign of fluid leakage.
1.
Drive the vehicle 20 miles (30 kilometers)
or until it reaches normal operating
temperature
2. Park the vehicle on a level surface and engage the parking brake.
3. With the parking brake engaged and your
foot on the brake pedal, start the engine
and move the gearshift lever through all
of the gear ranges. Allow a minimum of
10 seconds for each gear to engage.
4. Put the gearshift lever in
P (Park) and
leave the engine running.
Note: You will need to move the air filter
assembly to access the transmission
dipstick. 5.
Remove the dipstick, wiping it clean with
a clean, dry lint free rag. If necessary,
refer to Under hood overview in this
chapter for the location of the dipstick.
6. Install the dipstick making sure it is fully seated in the filler tube by turning it to
the locked position.
7. Remove the dipstick and inspect the fluid
level. The fluid should be in the
designated areas for normal operating
temperature.
Moving the Air Filter Assembly (Accessing
the Dipstick) WARNING
Do not run engine with the air filter
disconnected.
289
MKZ (), enUSA Maintenance

1. Shut the engine off.
2. Clean the area around the clamp that
connects the air filter assembly to the
rubber hose (A). 3. Remove the bolt cover (if equipped).
4.
Remove two bolts that attach the air filter
assembly to the front of the vehicle (B).
5. Loosen the clamp holding the air filter assembly to the rubber hose (A).
6. Remove the harness retaining clip by pulling up (C). Do not disconnect the
sensor (D).
7. Without disconnecting the sensor (D), pull
the air filter assembly up to disconnect
the air filter assembly from the seated
grommets located underneath the air
filter assembly. 8.
Rotate the air filter assembly 90 degrees
counterclockwise and reinstall into the
rubber hose.
9. Tighten the clamp (A).
10. The transmission fluid level indicator can now be accessed.
290
MKZ (), enUSA MaintenanceE158839
A
BCD E158840 E158841

Checking the fluid level
Low fluid level
If the fluid level is below the MIN range of
the dipstick, add fluid to reach the hash mark
level.
Note:
If the fluid level is below the MIN level,
do not drive the vehicle. An underfill
condition may cause shift or engagement
concerns or possible damage. Correct fluid level The transmission fluid should be checked at
normal operating temperature 180°F-200°F
(82°C-93°C) on a level surface. The normal
operating temperature can be reached after
approximately 20 miles (30 kilometers) of
driving.
The transmission fluid level should be
targeted within the cross-hatch area if at
normal operating temperature 180°F-200°F
(82°C-93°C).
High fluid level If the fluid level is above the MAX range of
the dipstick, remove fluid to reach the
hashmark level.
Note:
Fluid level above the MAX level may
cause shift or engagement concerns or
possible damage. High fluid levels can be
caused by an overheating condition. If your
vehicle has been operated for an extended
period at high speeds, in city traffic during
hot weather or pulling a trailer, the vehicle
should be turned off until normal operating
temperatures are reached. Depending on
vehicle use, cooling times could take up to
30 minutes or longer.
291
MKZ (), enUSA MaintenanceE158842 E158843 E158844

Adjusting Automatic Transmission Fluid
Levels
Before adding any fluid, make sure the
correct type is used. The type of fluid used
is normally indicated on the dipstick and also
in the Technical Specifications section in this
chapter.
Note:
An overfill condition of transmission
fluid may cause shift or engagement
concerns or possible damage. 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.
Reinstall the air filter assembly. After the fluid
level has been checked and adjusted as
necessary, do the following:
1. Shut the engine off.
2. Loosen the clamp holding the air filter
assembly to the rubber hose.
3. Rotate the air filter assembly 90 degrees
clockwise without disconnecting the
sensor.
4. Seat the air filter assembly back into the
grommets by pushing down on the air
filter assembly.
5. Tighten the clamp.
6. Install and tighten two bolts that attach air filter assembly to the front of the
vehicle.
7. Install the bolt cover (if equipped).
8. Reinstall the harness retaining clip into the front of the air filter assembly. BRAKE FLUID CHECK
Fluid levels between the MIN and MAX lines
are within the normal operating range; there
is no need to add fluid. If the fluid levels are
outside of the normal operating range, the
performance of the system could be
compromised; seek service from your
authorized dealer immediately.
POWER STEERING FLUID CHECK
Your vehicle is equipped with an electric
power steering (EPS) system. There is no
fluid reservoir to check or fill.
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. 292
MKZ (), enUSA MaintenanceE158845 E158846

Note:
The front and rear washer systems
are supplied from the same reservoir.
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 353).
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 proper ventilation. 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. WARNINGS
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. Your vehicle is equipped with a Motorcraft®
maintenance-free battery which normally
does not require additional water during its
life of service.
Note:
If your 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.
293
MKZ (), enUSA Maintenance

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. Note:
Until you switch the ignition to the on
position, you will receive a message in your
information display stating that your vehicle
is not in park.
Complete the following procedure in order
to restore the settings:
1. With the vehicle at a complete stop, set the parking brake.
2. Shift the transmission into P.
3. Turn off all accessories.
4. Step on 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 370). Reset the power windows
bounce-back feature. See Windows and
Mirrors (page 93). Reset the radio station
presets.
See Audio System (page 370).
6. Allow the engine to idle for at least one minute. If the engine turns off, step on
the accelerator to start the engine.
294
MKZ (), enUSA Maintenance

7. While the engine is running, step on the
brake pedal and shift the transmission to
N.
8. Allow the engine to run for at least one minute by pressing on the accelerator
pedal.
9. Drive your vehicle at least 10 miles (16 kilometers) to completely relearn the idle
and fuel trim strategy.
Note: Certain features may not operate if
the Battery Monitor System is not reset with
a scan tool following a jump start or battery
replacement. Normal electrical accessory
operation should resume after your vehicle
is left undisturbed for 8 hours.
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. Note:
Always dispose of automotive
batteries in a responsible manner. Follow
your local authorized standards for disposal.
Call your local authorized recycling center
to find out more about recycling automotive
batteries.
Note: It is recommended that the negative
battery cable terminal be disconnected from
the battery if you plan to store your vehicle
for an extended period of time.
CHECKING THE WIPER BLADES 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.
1. Pull the wiper blade and arm away from
the glass. 2. Press the locking buttons together.
3. Rotate and remove the wiper blade.
4. Install in the reverse order.
295
MKZ (), enUSA MaintenanceE142463 E129990
1
1 2

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
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 feet (7.6 meters) away. 2.
Measure the height of the headlamp bulb
center from the ground and mark an 8
foot (2.4 meter) 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. 296
MKZ (), enUSA MaintenanceE142592 E142465

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. 5. Locate the vertical adjuster on each
headlamp. Using a Phillips #2
screwdriver, turn the adjuster either
clockwise or counterclockwise in order
to adjust the vertical aim of the
headlamp. The horizontal edge of the
brighter light should touch the horizontal
reference line.
6. Close the hood and turn off the lamps. Horizontal Aim Adjustment
Horizontal aim is not required for this vehicle
and is not adjustable.
CHANGING A BULB
Lamp Assembly Condensation
Exterior lamps are vented to accommodate
normal changes in pressure. Condensation
can be a natural by-product of this design.
When moist air enters the lamp assembly
through the vents, there is a possibility that
condensation can occur when the
temperature is cold. When normal
condensation occurs, a thin film of mist can
form on the interior of the lens. The thin 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:
•
Presence of thin mist (no streaks, drip
marks or droplets).
• Fine mist covers less than 50% of the
lens. Examples of unacceptable moisture (usually
caused by a lamp water leak) are:
•
Water puddle inside the lamp.
• Large water droplets, drip marks or
streaks present on the interior of the lens.
Take your vehicle to a dealer for service if
any of the above conditions of unacceptable
moisture are present.
Replacing Bulbs
For replacing bulbs, see your authorized
dealer.
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 to
make sure they have the proper lamp
performance, light brightness, light pattern,
and safe visibility. The correct bulbs will not
damage the lamp assembly or void the lamp
assembly warranty and will provide quality
bulb illumination time.
297
MKZ (), enUSA MaintenanceE150095

Trade name
Function
LED
Headlamp high beam
LED
Headlamp low beam
LED
Side marker lamp - front
LED
Park lamp - front
LED
Turn lamp - front
LED
Tail and brake lamp - high series
LED
Tail and brake lamp - low series
LED
Reverse lamp
LED
Turn lamp - rear - high series
LED
Turn lamp - rear - low series
LED
Side marker lamp - rear
LED
License plate lamp
LED
Trunk lamp
LED
High-mount brake lamp
LED
Side repeater lamp
298
MKZ (), enUSA Maintenance