
Protected componentsFuse amp ratingFuse or relay number
Cooling fan module.50A MidiF1
Electric water pump.50A MidiF2
Body control module supply 1.50A MidiF3
Body control module supply 2.50A MidiF4
Not used.—F5
Not used.—F6
Anti-lock brake system pump.40A**F7
Anti-lock brake system valve.30A**F8
Vacuum pump.40A**F9
Heater blower motor.40A**F10
Engine management.30A**F11
Not used.—F12
Powertrain control module relay.25A**F13
Rear wiper.20A**F14
Body control module KL30 supply.30A**F15
Body control module 15 feed.20A**F16
Transmission oil pump (C-MAX Energi).20A**F17
Front wiper motor.20A**F18
Anti-lock brake system and electronicstability program module.5A*F19
Horn.15A*F20
Stop light switch.5A*F21
Vacuum pump monitoring.5A*F22
Engine control module 15.5A*F23Powertrain control module 15.Transmission oil pump 15.
Relay coils.5A*F24Light switch module.
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Fuses

Engine coolant reservoir cap. See Engine Coolant Check (page 223).A
Engine oil filler cap. See Engine Oil Check (page 222).B
Engine oil dipstick. See Engine Oil Dipstick (page 222).C
Engine air filter cover. See Changing the Engine Air Filter (page 238).D
Inverter system controller.E
Brake fluid reservoir cap. See Brake Fluid Check (page 227).F
Power distribution box. See Fuses (page 209).G
Inverter system controller coolant reservoir cap.H
Windshield washer fluid reservoir cap. See Washer Fluid Check (page 227).I
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MaintenanceABCDEFG
HIE162485

UNDER HOOD OVERVIEW -
PLUG-IN HYBRID ELECTRIC
VEHICLE (PHEV)
WARNING
The inverter system controllercontains various high-voltagecomponents that can cause seriousbodily harm or death. The inverter systemcontroller is not serviceable and shouldnever be touched, probed, or tamperedwith.
Note:Do not attempt to service any of thehigh-voltage components or wiring. Foreasier identification, the high-voltage wiringinsulation is color coated orange.
Engine coolant reservoir cap. See Engine Coolant Check (page 223).A
Engine oil filler cap. See Engine Oil Check (page 222).B
Engine oil dipstick. See Engine Oil Dipstick (page 222).C
Engine air filter cover. See Changing the Engine Air Filter (page 238).D
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MaintenanceE190353

Inverter system controller.E
Brake fluid reservoir cap. See Brake Fluid Check (page 227).F
Power distribution box. See Fuses (page 209).G
Inverter system controller coolant reservoir cap.H
Windshield washer fluid reservoir cap. See Washer Fluid Check (page 227).I
ENGINE OIL DIPSTICK
MINA
MAXB
ENGINE OIL CHECK
Check the level before starting the engineand make sure that the level is betweenthe MIN and the MAX marks.
1. Make sure that your vehicle is on levelground.
2. Switch the engine off and wait 10minutes for the oil to drain into the oilpan.
3. Remove the dipstick and wipe it witha clean, lint-free cloth. Replace thedipstick and remove it again to checkthe oil level.
If the oil level is at the minimum mark, addoil immediately.
Adding Engine Oil
Note:Do not remove the filler cap whenthe engine is running.
Note:Do not add oil further than the MAXmark. Oil levels above the MAX mark maycause engine damage.
Only use oils certified for gasoline enginesby the American Petroleum Institute (API).An oil with this trademark symbolconforms to the current engine andemission system protection standards andfuel economy requirements of theInternational Lubricants SpecificationAdvisory Council (ILSAC), comprised ofU.S. and Japanese automobilemanufacturers.
1. Remove the filler cap.
2. Add engine oil that meets the Fordspecifications. See Capacities andSpecifications (page 276).
3. Wipe off any spilled oil.
4. Replace the filler cap. Turn it until youfeel a strong resistance.
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MaintenanceAB
E169062 E142732

Low Engine Use (If Equipped)
The low engine use mode is equipped onEnergi models only. The low engine usemode keeps the engine oil quality in goodcondition when you drive your vehicle withlimited engine use. If your vehicle is in lowengine use mode when you start thevehicle, a message appears in theinformation display. When your vehicle isin low engine use mode, your vehicle runsthe engine as necessary.
Selecting EV Now mode when your vehicleis in the low engine use mode suspendsthe low engine use mode for as long as youcontinue driving your vehicle. The lowengine use mode resumes the next timeyou start your vehicle.
Changing the engine oil and resetting theoil life monitoring system suspends the lowengine use mode.
ENGINE COOLANT CHECK
WARNINGS
Do not add engine coolant when theengine is hot. Steam and scaldingliquids released from a hot coolingsystem can burn you badly. Also, you canbe burned if you spill coolant on hot engineparts.
Do not put engine coolant in thewindshield washer fluid container. Ifsprayed on the windshield, enginecoolant could make it difficult to seethrough the windshield.
To reduce the risk of personal injury,make sure the engine is cool beforeunscrewing the coolant pressurerelief cap. The cooling system is underpressure; steam and hot liquid can comeout forcefully when the cap is loosenedslightly.
Do not add coolant further than theMAX mark.
Engine Coolant and InverterSystem Controller Coolant
Your vehicle has two separate coolingsystems. One is for cooling the engine andone is for cooling the inverter systemcontroller that is specific to the hybridoperating system. The two systemsoperate similarly, with the inverter systemcontroller cooling system generallyoperating at a lower temperature andpressure.
Checking the Engine Coolant
When the engine is cold, check theconcentration and level of the enginecoolant at the intervals listed in thescheduled maintenance information. SeeScheduled Maintenance (page 348).
Note:Make sure that the level is betweenthe MIN and MAX marks on the enginecoolant reservoir.
Note:Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.
Note:If the level is at the MIN mark, belowthe MIN mark, or empty, add coolantimmediately. See Adding Engine Coolantin this chapter.
The coolant concentration should bemaintained within 48% to 50%, whichequates to a freeze point between -30°F(-34°C) and -34°F (-37°C).
Note:For best results, coolantconcentration should be tested with arefractometer such as Robinair® Coolantand Battery Refractometer 75240. We donot recommend the use of hydrometers orcoolant test strips for measuring coolantconcentrations.
Note:Automotive fluids are notinterchangeable. Do not use engine coolantor antifreeze or windshield washer fluidoutside of its specified function and vehiclelocation.
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Maintenance

•Do not allow wax to come in contactwith any non-body (low-gloss black)colored trim. The wax will discolor orstain the parts over time.
•Roof racks.
•Bumpers.
•Grained door handles.
•Side moldings.
•Mirror housings.
•Windshield cowl area.
•Do not apply wax to glass areas.
•After waxing, your car's paint shouldfeel smooth, and be free of streaks andsmudges.
CLEANING THE ENGINE
Engines are more efficient when they areclean because grease and dirt buildup keepthe engine warmer than normal.
When washing:
•Take care when using a power washerto clean the engine. The high-pressurefluid could penetrate the sealed partsand cause damage.
•Do not spray a hot engine with coldwater to avoid cracking the engineblock or other engine components.
•Spray Motorcraft Engine Shampoo andDegreaser on all parts that requirecleaning and pressure rinse clean. InCanada, use Motorcraft EngineShampoo.
•Never wash or rinse the engine while itis hot or running; water in the runningengine may cause internal damage.
•Never wash or rinse any ignition coil,spark plug wire or spark plug well, orthe area in and around these locations.
•Cover the battery, power distributionbox, and air filter assembly to preventwater damage when cleaning theengine.
CLEANING THE WINDOWS AND
WIPER BLADES
Car wash chemicals and environmentalfallout can result in windshield and wiperblade contamination. Dirty windshield andwipers will result in poor windshield wiperoperation. Keep the windshield and wiperblades clean to maintain windshield wiperperformance.
To clean the windshield and wiper blades:
•Clean the windshield with anon-abrasive glass cleaner. Whencleaning the interior of the windshield,avoid getting any glass cleaner on theinstrument panel or door panels. Wipeany glass cleaner off these surfacesimmediately.
•For windshields contaminated withtree sap, chemicals, wax or bugs, cleanthe entire windshield using steel wool(no greater than 0000 grade) in acircular motion and rinse with water.
•Clean the wiper blades with isopropylrubbing alcohol or windshield washerconcentrate.
Note: Do not use razor blades or othersharp objects to clean or remove decalsfrom the inside of the heated rear window.The vehicle warranty does not coverdamage caused to the heated rear windowgrid lines.
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Vehicle Care

Note:Industrial-strength or heavy-dutycleaners in combination with brush agitationto remove brake dust and dirt, could wearaway the clear coat finish over a period time.
Note:Do not use hydrofluoric acid-basedor high caustic-based wheel cleaners, steelwool, fuels or strong household detergents.
Note:If you intend parking your vehicle foran extended period after cleaning thewheels with a wheel cleaner, drive yourvehicle for a few minutes before doing so.This will reduce the risk of increasedcorrosion of the brake discs.
Alloy wheels and wheel covers are coatedwith a clear coat paint finish. To maintaintheir condition we recommend that you:
•Clean the wheels weekly usingMotorcraft Wheel and Tire Cleaner.Apply using manufacturer'sinstructions.
•Use a sponge to remove heavydeposits of dirt and brake dustaccumulation.
•Rinse thoroughly with a strong streamof water when you have completed thecleaning process.
•To remove tar and grease, useMotorcraft Bug and Tar Remover.
VEHICLE STORAGE
If you plan on storing your vehicle for 30days or more, read the followingmaintenance recommendations to makesure your vehicle stays in good operatingcondition.
We engineer and test all motor vehiclesand their components for reliable, regulardriving. Under various conditions,long-term storage may lead to degradedengine performance or failure unless youuse specific precautions to preserve enginecomponents.
General
•Store all vehicles in a dry, ventilatedplace.
•Protect from sunlight, if possible.
•If you store vehicles outside, theyrequire regular maintenance to protectagainst rust and damage.
Body
•Wash your vehicle thoroughly toremove dirt, grease, oil, tar or mud fromexterior surfaces, rear-wheel housingand the underside of front fenders.
•Periodically wash your vehicle if youstore it in exposed locations.
•Touch-up exposed or primed metal toprevent rust.
•Cover chrome and stainless steel partswith a thick coat of auto wax to preventdiscoloration. Re-wax as necessarywhen you wash your vehicle.
•Lubricate all hood, door and luggagecompartment hinges and latches witha light grade oil.
•Cover interior trim to prevent fading.
•Keep all rubber parts free from oil andsolvents.
Engine
•Change the engine oil and filter prior tostorage because used engine oilcontains contaminates which maycause engine damage.
•Start the engine every 15 days for aminimum of 15 minutes. Run at fast idlewith the climate controls set to defrostuntil the engine reaches normaloperating temperature.
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Vehicle Care

•With your foot on the brake, shiftthrough all the gears while the engineis running.
•We recommend that you change theengine oil before you use your vehicleagain.
Fuel System
•Fill the fuel tank with high-quality fueluntil the first automatic shutoff of thefuel pump nozzle.
Cooling System
•Protect against freezing temperatures.
•When removing your vehicle fromstorage, check coolant fluid level.Confirm that there are no coolingsystem leaks and that fluid is at therecommended level.
12V Battery
•Check and recharge as necessary. Keepconnections clean.
•If storing your vehicle for more than 30days without recharging the battery,we recommend that you disconnectthe battery cables to maintain batterycharge for quick starting.
Note:It is necessary to reset memoryfeatures if you disconnect the batterycables.
We recommend the following options foryour plug-in vehicle:
•Leave your vehicle plugged in. The 12Vbattery maintains power if left pluggedin. However, this periodically useselectricity from the household outlet.
•Connect a battery charger to your 12Vbattery and leave it on a continuous,slow charge.
•Disconnect the 12V battery. If your 12Vbattery is located in the luggagecompartment, do not fully shut theluggage compartment afterdisconnecting the 12V battery. Onlyleave the luggage compartment openif your vehicle is stored in a lockedlocation.
Brakes
•Make sure the brakes and parking brakerelease fully.
Tires
•Maintain recommended air pressure.
Miscellaneous
•Make sure you cover all linkages,cables, levers and pins under yourvehicle with grease to prevent rust.
•Move vehicles at least 25 ft (7.5 m)every 15 days to lubricate working partsand prevent corrosion.
Removing Vehicle From Storage
When your vehicle is ready to come out ofstorage, do the following:
•Wash your vehicle to remove any dirtor grease film build-up on windowsurfaces.
•Check windshield wipers for anydeterioration.
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