2018 LINCOLN NAVIGATOR air conditioning

If you drive in extremely hot climates:
•You can decrease the coolantconcentration to 40%.
•Coolant concentrations below 40%decrease the freeze and corrosionprotection characteristics of the coolantand may cause engine damage.
Vehicles driven year-round in non-extremeclimates should use prediluted coolant foroptimum cooling system and engineprotection.
Coolant Change
At specific mileage intervals, as listed in thescheduled maintenance information, thecoolant should be changed. Add predilutedcoolant approved to the correct specification.See Capacities and Specifications (page422).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarilydrive your vehicle before any incrementalcomponent damage occurs. The fail-safedistance depends on ambient temperature,vehicle load and terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat,the coolant temperature gaugemoves toward the red zone:
A warning lamp illuminates and amessage may appear in theinformation display.
If the engine reaches a presetover-temperature condition, the engineautomatically switches to alternating cylinderoperation. Each disabled cylinder acts as anair 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 enginetemperature, causing the engine tocompletely shut down. Your steering andbraking effort increases in this situation.
When the engine temperature cools, you canre-start the engine. Have your vehiclechecked as soon as possible to minimizeengine damage.
When Fail-Safe Mode Is Activated
WARNING: Fail-safe mode is for useduring emergencies only. Operate yourvehicle in fail-safe mode only as long asnecessary to bring your vehicle to rest ina safe location and seek immediate repairs.When in fail-safe mode, your vehicle willhave limited power, will not be able tomaintain high-speed operation, and maycompletely shut down without warning,potentially losing engine power, powersteering assist, and power brake assist,which may increase the possibility of acrash resulting in serious injury.
WARNING: Do not remove thecoolant reservoir cap when the coolingsystem is hot. Wait 10 minutes for thecooling system to cool down. Cover thecoolant reservoir cap with a thick cloth toprevent the possibility of scalding andslowly remove the cap. Failure to followthis instruction could result in personalinjury.
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Maintenance

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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Maintenance

CAPACITIES AND SPECIFICATIONS
Capacities
WARNING: The air conditioning refrigerant system contains refrigerant under high pressure. Only qualified personnel should servicethe air conditioning refrigerant system. Opening the air conditioning refrigerant system can cause personal injury.
CapacityItem
6.0 qt (5.7 L)Engine oil (with oil filter).
18.5 qt (17.5 L)Engine coolant (Base radiator with auxiliary rear heat).
18.0 qt (17 L)Engine coolant (Heavy duty trailer towing with auxiliary rear heat).
Between MIN and MAX on brake fluid reservoirBrake fluid.
1.8 qt (1.7 L)Front axle.
2.2 qt (2.1 L)1Rear axle.
13.1 qt (12.4 L)2Automatic transmission fluid.
1.6 qt (1.5 L) - 1.8 qt (1.7 L)Transfer case fluid (Four Wheel Drive with Electronic Shift on the Fly).
1.5 qt (1.4 L)Transfer case fluid (Four Wheel Drive with Torque on Demand).
Fill as requiredWindshield washer fluid.
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Capacities and Specifications

Check Every Six Months
Safety belts and seat latches for wear and function.
Safety warning lamps (brake, ABS, airbag and safety belt) for operation.
Washer spray and wiper operation. Clean or replace blades as necessary.
Multi-Point Inspection
In order to keep your vehicle running right,it is important to have the systems on yourvehicle checked regularly. This can helpidentify potential issues and prevent majorproblems. We recommend having thefollowing multi-point inspection performedat every scheduled maintenance interval tohelp make sure your vehicle keeps runninggreat.
Multi-Point Inspection
Hazard warning system operationAccessory drive belt(s)
Horn operationBattery performance
Radiator, cooler, heater and air conditioning hosesEngine air filter
Suspension components for leaks or damageExhaust system
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Scheduled Maintenance

3
360 Degree Camera...................................253Advanced Camera Views.................................253Camera Views.....................................................253Front Camera......................................................254Keep Out Zone....................................................254Side Camera........................................................254
4
4WDSee: Four-Wheel Drive.......................................216
A
A/CSee: Climate Control...........................................151
About This Manual............................................7ABSSee: Brakes..........................................................225
ABS driving hintsSee: Hints on Driving With Anti-LockBrakes...............................................................226
Accessories....................................................547Exterior Style........................................................547Interior Style.........................................................547Lifestyle.................................................................547
Peace of Mind......................................................547
AccessoriesSee: Replacement Parts Recommendation.....13
ACCSee: Using Adaptive Cruise Control..............257
Active Park Assist..........................................241Using Active Park Assist...................................243
Adaptive Headlamps...................................100Speed Dependent Lamps.................................100
Adjusting the Headlamps...........................376Horizontal Aim Adjustment..............................378Vertical Aim Adjustment...................................376
Adjusting the Pedals......................................93Adjusting the Steering Wheel.....................89End of Travel Position..........................................89Memory Feature....................................................89
AFSSee: Adaptive Headlamps................................100
Airbag Disposal................................................61Air ConditioningSee: Climate Control...........................................151
Air FilterSee: Changing the Engine Air Filter...............381
AlarmSee: Anti-Theft Alarm - Vehicles With: Anti-TheftAlarm System....................................................86See: Anti-Theft Alarm - Vehicles With: InteriorSensor.................................................................85
Ambient Lighting...........................................103Adjusting the Brightness...................................103Changing the Color............................................103Switching Ambient Lighting Off.......................103Switching Ambient Lighting On.......................103
Anti-Theft Alarm - Vehicles With: Anti-TheftAlarm System................................................86Arming the Alarm..................................................86Disarming the Alarm............................................86
Anti-Theft Alarm - Vehicles With: InteriorSensor.............................................................85Alarm Settings.......................................................85Alarm System.........................................................85Arming the Alarm..................................................85Ask on Exit..............................................................85Disarming the Alarm............................................86Triggering the Alarm............................................85
Appendices....................................................584Apps.................................................................507.................................................................................507SiriusXM Traffic and Travel Link.....................508
At a Glance........................................................17Audible Warnings and Indicators...............118Headlamps On Warning Chime........................118Key in Ignition Warning Chime..........................118Keyless Warning Alert.........................................118Parking Brake On Warning Chime...................118
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Index