2014 LINCOLN MKZ HYBRID Add antifreeze

ENGINE COOLANT CHECK
Engine Coolant and Inverter System
Controller Coolant
Your vehicle is equipped with two
separate cooling systems. One is for
cooling the engine and one is for cooling
the inverter system controller that is
specific to the hybrid operating system.
The two systems operate similarly, with
the inverter system controller cooling
system generally operating at a lower
temperature and pressure.
Checking the Engine Coolant
When the engine is cold, check the
concentration and level of the engine
coolant at the intervals listed in the
scheduled maintenance information. See
Scheduled Maintenance (page 412).
Note: Make sure that the level is between
the MIN and MAX marks on the engine
coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the MAX mark.
Note: If the level is at the MIN mark, below
the MIN mark, or empty, add prediluted
coolant immediately. See
Adding Engine
Coolant in this chapter.
The coolant concentration should be
maintained within 48% to 50%, which
equates to a freeze point between -30°F
(-34°C) and -34°F (-37°C). Note:
For best results, coolant
concentration should be tested with a
refractometer such as Rotunda tool
300-ROB75240 available from your
dealer. Ford does not recommend the use
of hydrometers or coolant test strips for
measuring coolant concentrations.
Note: Automotive fluids are not
interchangeable. Do not use engine
coolant or antifreeze or windshield washer
fluid outside of its specified function and
vehicle location.
Checking the Inverter System
Controller Coolant
When the engine is cold, check the
concentration and level of the inverter
system controller coolant at the intervals
listed in the scheduled maintenance
information. See Scheduled Maintenance
(page
412).
Note: Make sure that the level is between
the MIN and MAX marks on the inverter
system controller coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the MAX mark.
Note: If the level is at the MIN mark, below
the MIN mark, or empty, add prediluted
coolant immediately. See Adding Inverter
System Controller Coolant in this chapter.
The coolant concentration should be
maintained within 48% to 50%, which
equates to a freeze point between -30°F
(-34°C) and -34°F (-37°C).
255
MKZ (CC9) Maintenance

Note:
For best results, coolant
concentration should be tested with a
refractometer such as Rotunda tool
300-ROB75240 available from your
dealer. Ford does not recommend the use
of hydrometers or coolant test strips for
measuring coolant concentrations.
Note: Automotive fluids are not
interchangeable. Do not use engine
coolant or antifreeze or windshield washer
fluid outside of its specified function and
vehicle location.
Adding Coolant WARNINGS
Do not add engine coolant when the
engine is hot. Steam and scalding
liquids released from a hot cooling system
can burn you badly. Also, you can be
burned if you spill coolant on hot engine
parts. Do not put engine coolant in the
windshield washer fluid container. If
sprayed on the windshield, engine coolant
could make it difficult to see through the
windshield. 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 the cap is loosened
slightly. Do not add coolant further than the
MAX mark. Note:
Do not use stop leak pellets, cooling
system sealants, or additives as they can
cause damage to the cooling or heating
systems. This damage would not be
covered under your vehicle ’s warranty.
Note: During normal vehicle operation,
the coolant may change color from orange
to pink or light red. As long as the coolant
is clear and uncontaminated, this color
change does not indicate the coolant has
degraded nor does it require the coolant
to be drained, the system to be flushed,
or the coolant to be replaced.
Note: It is very important to use prediluted
coolant meeting the Ford specification in
order to avoid plugging the small coolant
passageways. Use of concentrated
coolant and water may cause coolant
passageway plugging and void the
warranty. See Capacities and
Specifications (page 302).
256
MKZ (CC9) Maintenance

•
Do not mix different colors or types of
coolant in your vehicle. Make sure the
correct coolant is used. Mixing of
coolants may harm your cooling
system. The use of an improper
coolant may harm the engine, inverter
system controller, and cooling system
components and may void the
warranty.
• In case of emergency, a large amount
of water without engine coolant may
be added to the engine cooling system
only in order to reach a vehicle service
location. In this instance, the engine
cooling system must be drained,
chemically cleaned with Motorcraft
Premium Cooling System Flush, and
refilled with prediluted engine coolant
as soon as possible. Water alone
(without engine coolant) can cause
engine damage from corrosion,
overheating, or freezing. DO NOT use
this method for the inverter system
controller cooling system. The inverter
system controller cooling system
operates close to ambient
temperature, and is susceptible to
freezing in any subfreezing
environment in the absence of coolant.
• Do not use alcohol, methanol, brine or
any engine coolants mixed with alcohol
or methanol antifreeze (coolant).
Alcohol and other liquids can cause
engine damage from overheating or
freezing.
• Do not add extra inhibitors or additives
to the coolant. These can be harmful
and compromise the corrosion
protection of the engine coolant. Adding Engine Coolant
1.
Unscrew the engine coolant reservoir
cap slowly. Any pressure will escape
as you unscrew the cap.
2. Use a funnel to add prediluted engine
coolant to the engine coolant reservoir.
Make sure that the level is between
the MIN and MAX marks on the engine
coolant reservoir. Use prediluted
engine coolant meeting the Ford
specification. See Capacities and
Specifications (page 302).
3. Close the engine coolant reservoir cap.
Whenever you add coolant, check the
coolant level in the engine coolant
reservoir the next few times you drive the
vehicle. If necessary, add enough
prediluted engine coolant to bring the
engine coolant level to the proper level.
Adding Inverter System Controller
Coolant
1. Open the inverter system controller coolant reservoir cap.
2. Use a funnel to add prediluted coolant
to the inverter system controller
coolant reservoir. Make sure that the
level is between the MIN and MAX
marks on the inverter system controller
coolant reservoir. Use prediluted
coolant meeting the Ford specification.
See
Capacities and Specifications
(page 302).
3. Close the inverter system controller coolant reservoir cap.
257
MKZ (CC9) Maintenance

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.
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. 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 302).
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.
260
MKZ (CC9) Maintenance