engine LINCOLN MKX 2018 Repair Manual

PRINCIPLE OF OPERATION
WARNINGS
Vehicle modifications involving brakingsystem, aftermarket roof racks,suspension, steering system, tireconstruction and wheel and tire size maychange the handling characteristics of yourvehicle and may adversely affect theperformance of the electronic stability controlsystem. In addition, installing any stereoloudspeakers may interfere with andadversely affect the electronic stabilitycontrol system. Install any aftermarket stereoloudspeaker as far as possible from the frontcenter console, the tunnel, and the frontseats in order to minimize the risk ofinterfering with the electronic stability controlsensors. Reducing the effectiveness of theelectronic stability control system could leadto an increased risk of loss of vehicle control,vehicle rollover, personal injury and death.
WARNINGS
Remember that even advancedtechnology cannot defy the laws ofphysics. It’s always possible to lose controlof a vehicle due to inappropriate driver inputfor the conditions. Aggressive driving on anyroad condition can cause you to lose controlof your vehicle increasing the risk of personalinjury or property damage. Activation of theelectronic stability control system is anindication that at least some of the tires haveexceeded their ability to grip the road; thiscould reduce the operator’s ability to controlthe vehicle potentially resulting in a loss ofvehicle control, vehicle rollover, personalinjury and death. If your electronic stabilitycontrol system activates, SLOW DOWN.
The system automatically turns on each timeyou switch the ignition on.
If a fault occurs in either the stability controlor the traction control system, you mayexperience the following conditions:
•The stability and traction control lightilluminates steadily.
•The stability control and traction controlsystems do not enhance your vehicle'sability to maintain traction of the wheels.
If a driving condition activates either thestability control or the traction control systemyou may experience the following conditions:
•The stability and traction control lightflashes.
•Your vehicle slows down.
•Reduced engine power.
•A vibration in the brake pedal.
•The brake pedal is stiffer than usual.
•If the driving condition is severe and yourfoot is not on the brake, the brake pedalmay move as the system applies higherbrake force.
The stability control system has severalfeatures built into it to help you maintaincontrol of your vehicle:
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Stability Control

Electronic Stability Control
The system enhances your vehicle’s abilityto prevent skids or lateral slides by applyingbrakes to one or more of the wheelsindividually and, if necessary, reducingengine power.
Roll Stability Control
The system enhances your vehicle’s abilityto prevent rollovers by detecting yourvehicle’s roll motion and the rate at which itchanges by applying the brakes to one ormore wheels individually.
Traction Control
The system enhances your vehicle’s abilityto maintain traction of the wheels bydetecting and controlling wheel spin. SeeUsing Traction Control (page 206).Vehicle without stability controlskidding off its intended route.A
Vehicle with stability controlmaintaining control on a slipperysurface.
B
USING STABILITY CONTROL
The system automatically turns on each timeyou switch the ignition on.
You cannot switch the stability control androll stability control systems off, but whenyou shift into reverse (R), the systemsdeactivate.
You can switch the traction control systemoff or on. See Using Traction Control (page206).
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Stability ControlE72903A
AA
B
BB
B

When you override the system, thegreen indicator light illuminatesand the vehicle graphic does notappear in the information display.
The system resumes operation when yourelease the accelerator pedal. The vehiclespeed decreases to the set speed, or a lowerspeed if following a slower vehicle.
Changing the Set Speed
•Press SET+ or SET- to change the setspeed in small increments.
•Press the accelerator or brake pedal untilyou reach the desired speed. Press SET+or SET-.
•Press and hold SET+ or SET- to changethe set speed in large increments.Release the control when you reach thedesired speed.
The system may apply the brakes to slowthe vehicle to the new set speed. The setspeed displays continuously in theinformation display when the system isactive.
Canceling the Set Speed
Press CNCL or tap the brake pedal. The setspeed does not erase.
Resuming the Set Speed
Note:Only use resume if you are aware ofthe set speed and intend to return to it.
Press RES. Your vehicle speed returns tothe previously set speed and gap setting. The set speed displays continuously in theinformation display when the system isactive.
Automatic Cancellation
Note:If the engine speed drops too low, anaudible warning sounds and a messageappears in the information display.Automatic braking releases.
The system does not operate below 12 mph(20 km/h).
Automatic cancellation can also occur if:
•The tires lose traction.
•The engine speed is too low.
•You apply the parking brake.
Hilly Condition Usage
Note:An audible alarm sounds and thesystem shuts down if it applies brakes for anextended period of time. This allows thebrakes to cool. The system functionsnormally again after the brakes cool.
Select a lower gear when the system isactive in situations such as prolongeddownhill driving on steep grades, forexample in mountainous areas. The systemneeds additional engine braking in thesesituations to reduce the load on the vehicle’sregular brake system to prevent it fromoverheating.
Switching Adaptive Cruise Control Off
Note:You erase the set speed and gapsetting when you switch the system off.
Press OFF when the system is in standbymode, or switch the ignition off.
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Cruise ControlE144529

CROSS TRAFFIC ALERT
WARNINGS
Do not use the cross traffic alert systemas a replacement for using the interiorand exterior mirrors or looking over yourshoulder before reversing out of a parkingspace. The cross traffic alert system is not areplacement for careful driving.
WARNINGS
The system may not operate properlyduring severe weather conditions, forexample snow, ice, heavy rain and spray.Always drive with due care and attention.Failure to take care may result in a crash.
The system is designed to alert you ofvehicles approaching from the sides whenyou shift into reverse (R).
Using the Cross Traffic Alert System
The system is designed to detect vehiclesthat approach with a speed up to 37 mph(60 km/h). Coverage decreases when thesensors are partially, mostly or fullyobstructed. Slowly reversing helps increasethe coverage area and effectiveness.
The system turns on when you start theengine and you shift into reverse (R). Thesystem turns off when you shift out of reverse(R).
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Driving Aids

These systems have a range of modes whichyou can choose from in order to customizeyour ideal driving experience:
•Comfort – Provides a more relaxeddriving experience, maximizing comfort.Your steering effort decreases and thesuspension movement is more fluid.Comfort mode is ideal when you desireenhanced traveling comfort.
•Normal – Delivers a balancedcombination of comfortable, controlledride and confident handling. This modeprovides an engaging drive experienceand a direct connection to the roadwithout sacrificing any of the composuredemanded from a luxury vehicle.
•Sport – Provides a sportier drivingexperience. The suspension stiffens, withan emphasis on handling and control.The engine responds more directly toyour inputs and takes on a more powerfultone. This mode is ideal for use duringmore spirited driving.
You can change the drive control settings inthe information display. See GeneralInformation (page 118).
Note:Not all settings may be available.
Note:Lincoln Drive Control has diagnosticchecks that continuously monitor the systemto ensure proper operation. Certain types ofsystem errors gray out the mode selectionswithin the information display, preventingyou from changing states when the gearposition is changed. Other types of errorsproduce a temporary message in theinformation display. If either conditionpersists for multiple key cycles, see anauthorized dealer.
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Driving Aids

GAWR (Gross Axle Weight Rating)
GAWR is the maximum allowable weightthat a single axle (front or rear) can carry.These numbers are on the SafetyCompliance Certification label. The labelis located on the door hinge pillar,door-latch post, or the door edge thatmeets the door-latch post, next to thedriver seating position.
The total load on each axle must neverexceed its Gross Axle Weight Rating.
GVWR (Gross Vehicle Weight Rating)
GVWR is the maximum allowable weightof the fully loaded vehicle. This includesall options, equipment, passengers andcargo. It appears on the SafetyCompliance Certification label. The labelis located on the door hinge pillar,door-latch post, or the door edge thatmeets the door-latch post, next to thedriver seating position.
The gross vehicle weight must neverexceed the Gross Vehicle Weight Rating.
Safety Compliance Certification LabelExample:
WARNING
Exceeding the Safety ComplianceCertification label vehicle weightrating limits could result in substandardvehicle handling or performance, engine,transmission and/or structural damage,serious damage to the vehicle, loss ofcontrol and personal injury.
Maximum Loaded Trailer Weight
Maximum loaded trailer weight is thehighest possible weight of a fully loadedtrailer the vehicle can tow. Consult anauthorized dealer (or the RV and TrailerTowing Guide available at an authorizeddealer) for more detailed information.
GCWR (Gross Combined WeightRating)
GCWR is the maximum allowable weightof the vehicle and the loaded trailer,including all cargo and passengers, thatthe vehicle can handle without riskingdamage. (Important: The towingvehicle’s braking system is rated foroperation at Gross Vehicle WeightRating, not at Gross Combined WeightRating.) Separate functional brakesshould be used for safe control of towedvehicles and for trailers where the GrossCombined Weight of the towing vehicleplus the trailer exceed the Gross VehicleWeight Rating of the towing vehicle.
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Load CarryingE198828

TOWING A TRAILER
WARNINGS
Do not exceed the GVWR or theGAWR specified on the certificationlabel.
Towing trailers beyond themaximum recommended grosstrailer weight exceeds the limit of yourvehicle and could result in enginedamage, transmission damage,structural damage, loss of vehiclecontrol, vehicle rollover and personalinjury.
Note:Your vehicle may have electricalitems, such as fuses or relays, related
to towing. See Fuses (page 288).
Your vehicle's load capacity designationis by weight, not by volume, so youcannot necessarily use all availablespace when loading a vehicle or trailer.
Towing a trailer places an extra load onyour vehicle's engine, transmission, axle,brakes, tires and suspension. Inspectthese components periodically during,and after, any towing operation.
Load Placement
To help minimize how trailer movementaffects your vehicle when driving:
•Load the heaviest items closest tothe trailer floor.
•Load the heaviest items centeredbetween the left and right side trailertires.
•Load the heaviest items above thetrailer axles or just slightly forwardtoward the trailer tongue. Do notallow the final trailer tongue weightto go above or below 10-15% of theloaded trailer weight.
•Select a ball mount with the correctrise or drop. When both the loadedvehicle and trailer are connected, thetrailer frame should be level, orslightly angled down toward yourvehicle, when viewed from the side.
When driving with a trailer or payload, aslight takeoff vibration or shudder maybe present due to the increased payloadweight. Additional information regardingproper trailer loading and setting yourvehicle up for towing is located in theLoad Carrying chapter. See Load Limit(page 259).
You can also find information in the RV& Trailer Towing Guide available at yourauthorized dealer, or online.
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Towing

RV & Trailer Towing Guide Online
http://www.fleet.ford.com/towing-guides/Website
TRAILER SWAY CONTROL (If Equipped)
WARNING
Turning off trailer sway controlincreases the risk of loss of vehiclecontrol, serious injury or death. Ford doesnot recommend disabling this feature exceptin situations where speed reduction may bedetrimental (such as hill climbing), the driverhas significant trailer towing experience, andcan control trailer sway and maintain safeoperation.
Note:This feature does not prevent trailersway, but reduces it once it begins.
Note:This feature cannot stop all trailersfrom swaying.
Note:In some cases, if vehicle speed is toohigh, the system may activate multiple times,gradually reducing vehicle speed.
This feature applies your vehicle brakes atindividual wheels and, if necessary, reducesengine power. If the trailer begins to sway,the stability control light flashes and themessage TRAILER SWAY REDUCE SPEEDappears in the information display. The firstthing to do is slow your vehicle down, thenpull safely to the side of the road and checkfor proper tongue load and trailer loaddistribution. See Load Carrying (page 257).
RECOMMENDED TOWING
WEIGHTS
Note:Do not exceed the trailer weightfor your vehicle configuration listed in
the chart below.
Note:Make sure to take intoconsideration trailer frontal area. Do notexceed 20 ft² (1.86 m²) for vehicleswithout towing package, or 30 ft² (2.79m²) for vehicles with towing package.
Note:For high altitude operation,reduce the gross combined weight by2% per 1,000 ft (305 m) starting at the1,000 ft (305 m) elevation point.
Note:Certain states require electrictrailer brakes for trailers over a specifiedweight. Be sure to check stateregulations for this specified weight. The
maximum trailer weights listed may belimited to this specified weight, as thevehicle’s electrical system may notinclude the wiring connector needed toactivate electric trailer brakes.
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Towing

Trailer lamps are required on most towedvehicles. Make sure all running lights, brakelights, turn signals and hazard lights areworking.
Before Towing a Trailer
Practice turning, stopping and backing up toget the feel of your vehicle-trailercombination before starting on a trip. Whenturning, make wider turns so the trailerwheels clear curbs and other obstacles.
When Towing a Trailer
•Do not drive faster than 70 mph(113 km/h) during the first 500 mi(800 km).
•Do not make full-throttle starts.
•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughly afteryou have traveled 50 miles (80kilometers).
•When stopped in congested or heavytraffic during hot weather, place thegearshift in position P to aid engine andtransmission cooling and to help A/Cperformance.
•Turn off the speed control with heavyloads or in hilly terrain. The speed controlmay turn off automatically when you aretowing on long, steep grades.
•Shift to a lower gear when driving downa long or steep hill. Do not apply thebrakes continuously, as they mayoverheat and become less effective.
•If your transmission is equipped with aGrade Assist or Tow/Haul feature, usethis feature when towing. This providesengine braking and helps eliminateexcessive transmission shifting foroptimum fuel economy and transmissioncooling.
•Allow more distance for stopping with atrailer attached. Anticipate stops andbrake gradually.
•Avoid parking on a grade. However, ifyou must park on a grade:
1. Turn the steering wheel to point yourvehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the automatic transmission inposition P.
4. Place wheel chocks in front and back ofthe trailer wheels. (Chocks not includedwith vehicle.)
Launching or Retrieving a Boat orPersonal Watercraft (PWC)
Note:Disconnect the wiring to the trailerbefore backing the trailer into the water.
Note:Reconnect the wiring to the trailerafter removing the trailer from the water.
When backing down a ramp during boatlaunching or retrieval:
•Do not allow the static water level to riseabove the bottom edge of the rearbumper.
•Do not allow waves to break higher than6 in (15 cm) above the bottom edge ofthe rear bumper.
Exceeding these limits may allow water toenter vehicle components:
•Causing internal damage to thecomponents.
•Affecting driveability, emissions, andreliability.
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Towing

Replace the rear axle lubricant anytime yousubmerge the rear axle in water. Water maycontaminate the rear axle lubricant, which isnot a normal maintenance inspection itemunless there is a possibility of a leak or otheraxle repair is required.
TOWING THE VEHICLE ON FOUR
WHEELS
Emergency Towing
You can flat-tow (all wheels on the ground,regardless of the powertrain/transmissionconfiguration) your disabled vehicle (withoutaccess to wheel dollies, car-hauling trailer,or flatbed transport vehicle) under thefollowing conditions:
•Your vehicle is facing forward so you towit in a forward direction.
•You place the transmission in position N.If you cannot place the transmission inposition N, you may need to override it.See Transmission (page 188).
•Maximum speed is 35 mph (56 km/h).
•Maximum distance is 50 miles (80kilometers).
Recreational Towing
Note: Put your climate control system inrecirculated air mode to prevent exhaustfumes from entering the vehicle. SeeClimate Control (page 145).
Follow these guidelines if you have a needfor recreational (RV) towing. An example ofrecreational towing would be towing yourvehicle behind a motorhome. Theseguidelines are to make sure you do notdamage the transmission during towing.
You can tow your vehicle with all four wheelson the ground using the Neutral Tow feature,or with all four wheels off the ground usinga vehicle transport trailer. If you are using avehicle transport trailer, follow the instructionspecified by the equipment provider.
Neutral Tow
If you tow your vehicle with all four wheelson the ground:
•Tow only in the forward direction.
•Release the parking brake.
Enter Neutral Tow mode by doing thefollowing:
1. Put the ignition in accessory mode bypressing the engine START buttonwithout pressing the brake pedal.
2. Select Neutral Tow under the VehicleSettings menu in the information display.See General Information (page 118).
3.Press and hold the OK button to start theneutral tow process.
4. Press the brake pedal and select N onthe push-button transmission.
5. Turn the ignition off by pressing theengine START button without pressingthe brake pedal.
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Towing