Engine coolant reservoir cap. See Engine Coolant Check (page 228).
A
Engine oil filler cap. See
Engine Oil Check (page 226).
B
Engine oil dipstick. See
Engine Oil Dipstick (page 226).
C
Engine air filter cover. See
Changing the Engine Air Filter (page 244).
D
Inverter system controller.
E
Brake fluid reservoir cap. See
Brake Fluid Check (page 232).
F
Power distribution box. See
Fuses (page 211).
G
Inverter system controller coolant reservoir cap.
H
Windshield washer fluid reservoir cap. See
Washer Fluid Check (page 232).
I
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HIE162485
UNDER HOOD OVERVIEW -
PLUG-IN HYBRID ELECTRIC
VEHICLE (PHEV)
WARNING
The inverter system controller
contains high-voltage components
and is not serviceable. Do not touch,
probe, or tamper with it. Failure to follow
this instruction could result in personal
injury or death. Note:
Do not attempt to service any of the
high-voltage components or wiring. For
easier identification, the high-voltage wiring
insulation is color coded orange. Engine coolant reservoir cap. See Engine Coolant Check (page 228).
A
Engine oil filler cap. See
Engine Oil Check (page 226).
B
Engine oil dipstick. See
Engine Oil Dipstick (page 226).
C
Engine air filter cover. See
Changing the Engine Air Filter (page 244).
D
Inverter system controller.
E
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Brake fluid reservoir cap. See Brake Fluid Check (page 232).
F
Power distribution box. See
Fuses (page 211).
G
Inverter system controller coolant reservoir cap.
H
Windshield washer fluid reservoir cap. See
Washer Fluid Check (page 232).
I
ENGINE OIL DIPSTICK MINA
MAX
B
ENGINE OIL CHECK
Check the level before starting the engine
and make sure that the level is between
the MIN and the MAX marks.
1. Make sure that your vehicle is on level ground.
2. Switch the engine off and wait 10 minutes for the oil to drain into the oil
pan.
3. Remove the dipstick and wipe it with a clean, lint-free cloth. Replace the
dipstick and remove it again to check
the oil level.
If the oil level is at the minimum mark, add
oil immediately. Adding Engine Oil
Note:
Do not remove the filler cap when
the engine is running.
Note: Do not add oil further than the MAX
mark. Oil levels above the MAX mark may
cause engine damage. Only use oils certified for gasoline engines
by the American Petroleum Institute (API).
An oil with this trademark symbol
conforms to the current engine and
emission system protection standards and
fuel economy requirements of the
International Lubricants Specification
Advisory Council (ILSAC), comprised of
U.S. and Japanese automobile
manufacturers.
1. Remove the filler cap.
2. Add engine oil that meets the Ford
specifications. See
Capacities and
Specifications (page 282).
3. Wipe off any spilled oil.
4. Replace the filler cap. Turn it until you feel a strong resistance.
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E169062 E142732
7.
The message confirming that the reset
is complete will no longer be displayed.
8. Switch the ignition off. For vehicles with
push-button start, press the start
button to switch the ignition off.
ENGINE COOLANT CHECK WARNINGS
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. Do not put coolant in the windshield
washer fluid reservoir. If sprayed on
the windshield, 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 you loosen the cap
slightly. Do not add coolant further than the
MAX mark.
Your vehicle has two separate cooling
systems. One for cooling the engine and a
separate system 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.
When the engine is cold, check the
concentration and level of the coolant at
the intervals listed in the scheduled
maintenance information. See Scheduled
Maintenance
(page 441). Note:
Make sure that the coolant level is
between the
MIN and MAX marks on the
coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
Maintain coolant concentration within
48% to 50%, which equates to a freeze
point between -30°F (-34°C) and -34°F
(-37°C). Coolant concentration should be
checked using a refractometer. We do not
recommend the use of hydrometers or
coolant test strips for measuring coolant
concentration.
Adding Coolant WARNING
Never remove the coolant reservoir
cap when the engine is running or
hot.
Note:
Automotive fluids are not
interchangeable. Do not use coolant or
windshield washer fluid outside of its
specified function and vehicle location.
Note: Do not use stop leak pellets, cooling
system sealants, or non-specified additives
as they can cause damage to the engine
cooling or heating systems. Resulting
component damage may not be covered by
the vehicle Warranty.
It is very important to use prediluted
coolant approved to the correct
specification in order to avoid plugging the
small passageways in the engine cooling
system. See
Capacities and
Specifications (page 286). Do not mix
different colors or types of coolant in your
vehicle. Mixing of engine coolants or using
an incorrect coolant may harm the engine
or cooling system components and may
not be covered by the vehicle Warranty.
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Note:
If prediluted coolant is not available,
use the approved concentrated coolant
diluting it to 50/50 with distilled water. See
Capacities and Specifications (page 282).
Using water that has not been deionised
may contribute to deposit formation,
corrosion and plugging of the small cooling
system passageways.
Note: Coolants marketed for all makes and
models may not be approved to Ford
specifications and may cause damage to
the cooling system. Resulting component
damage may not be covered by the vehicle
Warranty.
If the coolant level is at or below the
minimum mark, add prediluted coolant
immediately.
To top up the coolant level do the
following:
1. Unscrew the cap slowly. Any pressure escapes as you unscrew the cap.
2. Add prediluted coolant approved to the correct specification. See
Capacities and Specifications (page
282).
3. Add enough prediluted coolant to reach the correct level.
4. Replace the coolant reservoir cap, turn
it clockwise until you feel a strong
resistance.
5. Check the coolant level in the coolant reservoir the next few times you drive
your vehicle. If necessary, add enough
prediluted engine coolant to bring the
coolant level to the correct level.
If you have to add more than
1.1 qt (1 L) of
engine coolant per month, have your
vehicle checked as soon as possible.
Operating an engine with a low level of
coolant can result in engine overheating
and possible engine damage. 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: In case of emergency, you can add a
large amount of water without coolant in
order to reach a vehicle service location.
Water alone, without coolant, can cause
engine damage from corrosion, overheating
or freezing. When you reach a service
location, you must have the cooling system
drained and refilled with prediluted coolant
approved to the correct specification. See
Capacities and Specifications (page 282).
Do not use the following as a coolant
substitute:
• Alcohol.
• Methanol.
• Brine.
• Any coolant mixed with alcohol or
methanol antifreeze.
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 coolant.
Recycled Coolant
We do not recommend the use of recycled
coolant as an approved recycling process
is not yet available.
Dispose of used engine coolant in an
appropriate manner. Follow your
community ’s regulations and standards
for recycling and disposing of automotive
fluids.
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Severe Climates
If you drive in extremely cold climates:
•
It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60%
provides improved freeze point
protection. Coolant concentrations
above 60% decrease the overheat
protection characteristics of the
coolant and may cause engine
damage.
If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• Coolant concentrations below 40%
decrease the freeze and corrosion
protection characteristics of the
coolant and may cause engine
damage.
Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection.
Coolant Change
At specific mileage intervals, as listed in
the scheduled maintenance information,
the coolant should be changed. Add
prediluted coolant approved to the correct
specification. See Capacities and
Specifications (page 282).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient
temperature, vehicle load and terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat, the
coolant temperature gauge moves toward
the red zone: A warning lamp illuminates and
a message may appear in the
information display.
If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating
cylinder operation. Each disabled cylinder
acts as an air pump and cools the engine.
When this occurs, your vehicle still
operates, however:
• Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
When Fail-Safe Mode Is Activated WARNINGS
Fail-safe mode is for use during
emergencies only. Operate your
vehicle in fail-safe mode only as long
as necessary to bring your vehicle to rest
in a safe location and seek immediate
repairs. When in fail-safe mode, your
vehicle will have limited power, will not be
able to maintain high-speed operation, and
may completely shut down without
warning, potentially losing engine power,
power steering assist, and power brake
assist, which may increase the possibility
of a crash resulting in serious injury. Never remove the coolant reservoir
cap when the engine is running or
hot.
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CAPACITIES AND SPECIFICATIONS
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant under high pressure.
Only qualified personnel should service the air conditioning refrigerant system.
Opening the air conditioning refrigerant system can cause personal injury.
Capacity
Item
4.5 qt (4.3 L)
Engine oil
8.2 qt (7.8 L)
Engine coolant
8.8 qt (8.3 L)
Engine coolant (Energi vehicles)
1.1 qt (1 L)
Inverter system controller coolant
Between MIN and MAX on brake fluidreservoir
Brake fluid
4.8 qt (4.5 L)
Automatic transmission fluid*
Fill as required
Windshield washer fluid
14 gal (53 L)
Fuel tank
1.63 lb (0.74 kg)
A/C Refrigerant
5.2 fl oz (153.8 ml)
A/C Refrigerant Compressor Oil
*Approximate dry fill capacity. Actual amount may vary during fluid changes.
Specifications
Materials Specification
Name
WSS-M2C947-A
Motor oil:
Motorcraft® SAE 0W-20 Synthetic Blend Motor Oil
XO-0W20-QSP
WSS-M97B44-D2
Engine coolant (U.S.):
Motorcraft® Orange Prediluted Antifreeze/Coolant
VC-3DIL-B
WSS-M97B44-D2
Engine coolant (Canada):
Motorcraft® Orange Prediluted Antifreeze/Coolant
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Check Every 12 Months (C-MAX Energi
Plug-in Hybrid Only)
Inspect the engine oil filter for signs of
damage such as rust, paint blistering,
scratches or dents. If any of these
conditions are present, replace the filter.
See Normal Scheduled Maintenance
(page 445). Multi-point Inspection
In order to keep your vehicle running right,
it is important to have the systems on your
vehicle checked regularly. This can help
identify potential issues and prevent major
problems. We recommend having the
following multi-point inspection performed
at every scheduled maintenance interval
to help make sure your vehicle keeps
running great. Multi-point inspection
Hazard warning system operation
Accessory drive belt(s)
Horn operation
Battery performance
Radiator, cooler, heater and A/C hoses
Engine air filter
Suspension components for leaks ordamage
Exhaust system
Steering and linkage
Exterior lamps operation
Tires for wear and proper pressure**
Fluid levels *
; fill if necessary
Windshield for cracks, chips or pits
For oil and fluid leaks
Washer spray and wiper operation
Half-shaft dust boots
* Brake, coolant recovery reservoir, automatic transmission and window washer
** If your vehicle is equipped with a temporary mobility kit, check the tire sealant expiration
Use By date on the canister. Replace as needed.
Be sure to ask your dealership service
advisor or technician about the multi-point
vehicle inspection. It is a comprehensive
way to perform a thorough inspection of
your vehicle. Your checklist gives you
immediate feedback on the overall
condition of your vehicle.
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