2018 LINCOLN NAVIGATOR engine

Your vehicle has limited engine power whenin the fail-safe mode, drive your vehicle withcaution. Your vehicle does not maintainhigh-speed operation and the engine mayoperate poorly.
Remember that the engine is capable ofautomatically shutting down to preventengine damage. In this situation:
1. Pull off the road as soon as safelypossible and switch the engine off.
2. If you are a member of a roadsideassistance program, we recommend thatyou contact your roadside assistanceservice provider.
3.If this is not possible, wait a short periodfor the engine to cool.
4. Check the coolant level. If the coolantlevel is at or below the minimum mark,add prediluted coolant immediately.
5.When the engine temperature cools, youcan re-start the engine. Have your vehiclechecked as soon as possible to minimizeengine damage.
Note:Driving your vehicle without repairincreases the chance of engine damage.
Engine Coolant TemperatureManagement (If Equipped)
WARNING: To reduce the risk ofcrash and injury, be prepared that thevehicle speed may reduce and the vehiclemay not be able to accelerate with fullpower until the coolant temperaturereduces.
If you tow a trailer with your vehicle, theengine may temporarily reach a highertemperature during severe operatingconditions, for example ascending a long orsteep grade in high ambient temperatures.
At this time, you may notice the coolanttemperature gauge moves toward the redzone and a message may appear in theinformation display.
You may notice a reduction in vehicle speedcaused by reduced engine power in orderto manage the engine coolant temperature. Your vehicle may enter this mode if certainhigh-temperature and high-load conditionstake place. The amount of speed reductiondepends on vehicle loading, grade andambient temperature. If this occurs, there isno need to stop your vehicle. You cancontinue to drive.
The air conditioning may automatically turnon and off during severe operatingconditions to protect the engine fromoverheating. When the coolant temperaturedecreases to the normal operatingtemperature, the air conditioning turns on.
If the coolant temperature gauge moves fullyinto the red zone, or if the coolanttemperature warning or service engine soonmessages appear in your information display,do the following:
1.Stop your vehicle as soon as it is safe todo so. Fully apply the parking brake, shiftinto park (P) or neutral (N).
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2. Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. Afterseveral minutes, if the temperature doesnot drop, follow the remaining steps.
3. Switch the engine off and wait for it tocool. Check the coolant level.
4. If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5. If the coolant level is normal, restart theengine and continue.
AUTOMATIC TRANSMISSION
FLUID CHECK
If required, have an authorized dealer checkand change the transmission fluid at thecorrect service interval. See ScheduledMaintenance (page 552).
The automatic transmission does not havea transmission fluid dipstick.
Refer to your scheduled maintenanceinformation for scheduled intervals for fluidchecks and changes. Your transmission doesnot consume fluid. However, if thetransmission slips, shifts slowly or if younotice a sign of leaking fluid, contact anauthorized dealer.
Do not use supplemental transmission fluidadditives, treatments or cleaning agents. Theuse of these materials may affecttransmission operation and result in damageto internal transmission components.
TRANSFER CASE FLUID CHECK (IF
EQUIPPED)
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WARNING: This vehicle may havemore than one battery. Removing thebattery cables from only one battery doesnot disconnect your vehicle electricalsystem. Make sure you disconnect thebattery cables from all batteries whendisconnecting power. Failure to do so maycause serious personal injury or propertydamage.
Your vehicle is fitted with a Motorcraftmaintenance-free battery which normallydoes not require additional water.
When a battery replacement is required, youmust use a recommended replacementbattery that matches the electricalrequirements of the vehicle.
Note:After cleaning or replacing the battery,make sure you reinstall the battery cover orshield.
Note:If you add electrical accessories orcomponents to the vehicle, it may adverselyaffect the low voltage battery performanceand durability. This may also affect theperformance of other electrical systems inthe vehicle.
For longer, trouble-free operation, keep thetop of the battery clean and dry.
If you see any corrosion on the battery orterminals, remove the cables from theterminals and clean with a wire brush. Youcan neutralize the acid with a solution ofbaking soda and water.
Because your vehicle’s engine iselectronically controlled by a computer, somecontrol conditions are maintained by powerfrom the battery. When the battery isdisconnected or a new battery is installed,the engine must relearn its idle and fuel trimstrategy for optimum driveability andperformance. Flexible fuel vehicles (FFV)must also relearn the ethanol content of thefuel for optimum driveability andperformance.
To restore the settings, do the following:
1. Apply the parking brake.
2. Shift into park (P) or neutral (N).
3. Switch off all accessories.
4. Press the brake pedal and start yourvehicle.
5. Run the engine until it reaches normaloperating temperature. While the engineis warming up, complete the following:Reset the clock. Reset the powerwindows bounce-back feature. SeeWindows and Mirrors (page 104). Resetthe radio station presets. See AudioSystem (page 434).
6. Allow the engine to idle for at least oneminute.
7.Drive the vehicle at least 10 mi (16 km) tocompletely relearn the idle trim and fueltrim strategy.
Note:If you do not allow the engine torelearn the idle and fuel trim strategy, theidle quality of your vehicle may be adverselyaffected until the engine computereventually relearns the idle trim and fuel trimstrategy.
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Note:For flexible fuel vehicles, if you areoperating on E85, you may experience poorstarts or an inability to start the engine anddriveability problems until the fuel trim andethanol content have been relearned.
Make sure that you dispose of old batteriesin an environmentally friendly way. Seekadvice from your local authority aboutrecycling old batteries.
If storing your vehicle for more than 30 dayswithout recharging the battery, werecommend that you disconnect the negativebattery cable to maintain battery charge forquick starting.
Battery Management System (If Equipped)
The battery management system monitorsbattery conditions and takes actions toextend battery life. If excessive battery drainis detected, the system temporarily disablessome electrical systems to protect thebattery.
Systems included are:
•Heated rear window.
•Heated seats.
•Climate control.
•Heated steering wheel.
•Audio unit.
•Navigation system.
A message may appear in the informationdisplays to alert you that battery protectionactions are active. These messages are onlyfor notification that an action is taking place,and not intended to indicate an electricalproblem or that the battery requiresreplacement.
After battery replacement, or in some casesafter charging the battery with an externalcharger, the battery management systemrequires eight hours of vehicle sleep time torelearn the battery state of charge. Duringthis time your vehicle must remain fullylocked with the ignition switched off.
Note:Prior to relearning the battery state ofcharge, the battery management systemmay temporarily disable some electricalsystems.
Electrical Accessory Installation
To make sure the battery managementsystem works correctly, do not connect anelectrical device ground connection directlyto the battery negative post. This can causeinaccurate measurements of the batterycondition and potential incorrect systemoperation.
Note:If you add electrical accessories orcomponents to the vehicle, it may adverselyaffect battery performance and durability.This may also affect the performance ofother electrical systems in the vehicle.
CHECKING THE WIPER BLADES
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CHANGING THE ENGINE AIR
FILTER
WARNING: To reduce the risk ofvehicle damage and personal burn injuries,do not start your engine with the aircleaner removed and do not remove itwhile the engine is running.
Note: Failure to use the correct air filterelement may result in severe enginedamage. Resulting component damage maynot be covered by the vehicle Warranty.
When changing the air filter element, useonly the air filter element listed. SeeMotorcraft Parts (page 423).
Change the air filter element at the correctinterval. See Capacities and Specifications(page 422).
1. Release the two clamps that secure thecover to the air filter housing. Push theair filter cover toward the front of thevehicle and up slightly to release it.
2.Remove the air filter element from the airfilter housing.
3. Install the new air filter element.
4. Replace the air filter housing cover andsecure all the clamps. Be careful not tocrimp the filter element edges betweenthe air filter housing and cover andensure that you properly align the tabson the edge into the slots.
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GENERAL INFORMATION
Your dealer has many quality productsavailable to clean your vehicle and protectits finishes.
CLEANING PRODUCTS
Materials
For best results, use the following productsor products of equivalent quality:
SpecificationName
Motorcraft® Bug and Tar Remover, ZC-42 (U.S. & Canada)
ESR-M5B194-BMotorcraft® Custom Bright Metal Cleaner, ZC-15 (U.S. & Canada)
ESR-M14P4-AMotorcraft® Detail Wash, ZC-3-A (U.S. & Canada)
ESR-M14P3-AMotorcraft® Engine Shampoo and Degreaser, ZC-20 (U.S.)
Motorcraft® Engine Shampoo, CXC-66-A (Canada)
Motorcraft® Premium Leather and Vinyl Cleaner, ZC-56 (U.S. & Canada)
Motorcraft® Multi-Purpose Cleaner, CXC-101 (Canada)
WSS-M14P19-AMotorcraft® Premium Windshield Wash Concentrate with Bitterant, ZC-32-B2 (U.S.)
WSS-M14P19-AMotorcraft® Premium Quality Windshield Washer Fluid, CXC-37-A/B/D/F (Canada)
Motorcraft® Professional Strength Carpet & Upholstery Cleaner, ZC-54 (U.S. & Canada)
ESR-M14P5-AMotorcraft® Premium Glass Cleaner, CXC-100 (Canada)
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Vehicle Care

•Do not allow wax to come in contact withany non-body (low-gloss black) coloredtrim. The wax will discolor or stain theparts 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 should feelsmooth, 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 cold waterto avoid cracking the engine block orother engine components.
•Spray Motorcraft Engine Shampoo andDegreaser on all parts that requirecleaning and pressure rinse clean. InCanada, use Motorcraft Engine Shampoo.
•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, or thearea in and around these locations.
•Cover the battery, power distribution box,and air filter assembly to prevent waterdamage when cleaning the engine.
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 a non-abrasiveglass cleaner. When cleaning the interiorof the windshield, avoid getting any glasscleaner on the instrument panel or doorpanels. Wipe any glass cleaner off thesesurfaces immediately.
•For windshields contaminated with treesap, chemicals, wax or bugs, clean theentire windshield using steel wool (nogreater than 0000 grade) in a circularmotion and rinse with water.
•Clean the wiper blades with isopropylrubbing alcohol or windshield washerconcentrate.
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VEHICLE STORAGE
If you plan on storing your vehicle for 30days or more, read the followingmaintenance recommendations to make sureyour vehicle stays in good operatingcondition.
We engineer and test all motor vehicles andtheir components for reliable, regular driving.Under various conditions, long-term storagemay lead to degraded engine performanceor failure unless you use specific precautionsto preserve engine components.
General
•Store all vehicles in a dry, ventilatedplace.
•Protect from sunlight, if possible.
•If vehicles are stored outside, theyrequire regular maintenance to protectagainst rust and damage.
Body
•Wash your vehicle thoroughly to removedirt, grease, oil, tar or mud from exteriorsurfaces, rear-wheel housing and theunderside of front fenders.
•Periodically wash your vehicle if it isstored 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 necessary whenyou wash your vehicle.
•Lubricate all hood, door and luggagecompartment hinges and latches with alight 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 oil containscontaminates which may cause enginedamage.
•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.
•With your foot on the brake, shift throughall the gears while the engine is 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 the fuelpump nozzle.
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