engine LINCOLN MKZ HYBRID 2018 Service Manual

2.Insert the fuel pump nozzle up to the firstnotch on the nozzle A. Keep it restingon the cover of the fuel tank filler pipeopening.
3. Hold the fuel pump nozzle in position Bwhen refueling. Holding the nozzle inposition A can affect the flow of fuel andshut off the fuel nozzle before the tankis full.
4.Operate the fuel pump nozzle within thearea shown.
5. When you finish refueling slightly raisethe fuel pump nozzle and slowly removeit.
6. Fully close the fuel filler door.
Note: Do not attempt to start the engine ifyou have filled the fuel tank with incorrectfuel. Incorrect fuel use can cause damagenot covered by the vehicle Warranty. Haveyour vehicle immediately checked.
System Warnings (If Equipped)
If the fuel filler inlet does not fully close awarning message appears in the informationdisplay.
1.Stop your vehicle as soon as it is safe todo so and switch the engine off.
2. Shift into park (P) or neutral (N).
3. Apply the parking brake.
4. Fully open the fuel filler door.
5. Check the fuel filler inlet and the areaaround it for any items or debris that maybe obstructing its movement.
6.Fully insert a fuel pump nozzle or the fuelfiller funnel provided with your vehicleinto the fuel filler inlet. This action shoulddislodge any debris that may bepreventing the fuel filler inlet from fullyclosing.
7. Fully close the fuel filler door.
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Note: If this action corrects the problem themessage may not immediately reset. If themessage remains and a warning lampilluminates, have your vehicle checked assoon as possible.
Fuel Filler Door Manual Override Lever
Note:The transmission must be in park (P)or neutral (N).
When using the manual override lever dothe following:
1. Switch the ignition on.
2. Open the luggage compartment. Themanual override lever is located on theleft-hand side.
3. Pull the manual override lever.
4. Switch the ignition off.
5. Complete the refueling process within20 minutes.
FUEL CONSUMPTION
The advertised capacity is the maximumamount of fuel that you can add to the fueltank after running out of fuel. Included in theadvertised capacity is an empty reserve. Theempty reserve is an unspecified amount offuel that remains in the fuel tank when thefuel gauge indicates empty.
Note:The amount of fuel in the emptyreserve varies and should not be relied uponto increase driving range.
Filling the Fuel Tank
For consistent results when refueling:
•Turn the ignition off before fueling; aninaccurate reading results if the engineis left running.
•Use the same fill rate (low-medium-high)each time the tank is filled.
•Allow no more than one automaticshut-off when refueling.
Results are most accurate when the fillingmethod is consistent.
Calculating Fuel Economy
Do not measure fuel economy during thefirst 1,000 mi (1,600 km) of driving (this is yourengine’s break-in period). A more accuratemeasurement is obtained after 2,000 mi(3,200 km) to 3,000 mi (4,800 km). Also, fuelexpense, frequency of fill ups or fuel gaugereadings are not accurate ways to measurefuel economy.
1. Fill the fuel tank completely and recordthe initial odometer reading.
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EMISSION LAW
WARNING
Do not remove or alter the originalequipment floor covering or insulationbetween it and the metal floor of the vehicle.The floor covering and insulation protectoccupants of the vehicle from the engineand exhaust system heat and noise. Onvehicles with no original equipment floorcovering insulation, do not carry passengersin a manner that permits prolonged skincontact with the metal floor. Failure to followthese instructions may result in fire orpersonal injury.
U.S. federal laws and certain state lawsprohibit removing or rendering inoperativeemission control system components. Similarfederal or provincial laws may apply inCanada. We do not approve of any vehiclemodification without first determiningapplicable laws.
Tampering with emissions controlsystems including related sensorsor the Diesel Exhaust Fluid systemcan result in reduced engine power and theillumination of the service engine soon light.
Tampering With a Noise ControlSystem
Federal laws prohibit the following acts:
•Removal or rendering inoperative by anyperson other than for purposes ofmaintenance.
•Repair or replacement of any device orelement of the design incorporated intoa new vehicle for the purpose of noisecontrol prior to its sale or delivery to theultimate purchaser or while it is in use.
•The use of the vehicle after any personremoves or renders inoperative anydevice or element of the design.
The U.S. Environmental Protection Agencymay presume to constitute tampering asfollows:
•Removal of hood blanket, fender apronabsorbers, fender apron barriers,underbody noise shields or acousticallyabsorptive material.
•Tampering or rendering inoperative theengine speed governor, to allow enginespeed to exceed manufacturerspecifications.
If the engine does not start, runs rough,experiences a decrease in engineperformance, experiences excess fuelconsumption or produces excessive exhaustsmoke, check for the following:
•A plugged or disconnected air inletsystem hose.
•A plugged engine air filter element.
•Water in the fuel filter and waterseparator.
•A clogged fuel filter.
•Contaminated fuel.
•Air in the fuel system, due to looseconnections.
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Engine Emission Control

•An open or pinched sensor hose.
•Incorrect engine oil level.
•Incorrect fuel for climatic conditions.
•Incorrect engine oil viscosity for climacticconditions.
Note:Some vehicles have a lifetime fuel filterthat is integrated with the fuel tank. Regularmaintenance or replacement is not needed.
Note:If these checks do not help you correctthe concern, have your vehicle checked assoon as possible.
Noise Emissions Warranty, ProhibitedTampering Acts and Maintenance
On January 1, 1978, Federal regulationbecame effective governing the noiseemission on trucks over 10,000 lb (4,536 kg)Gross Vehicle Weight Rating (GVWR). Thepreceding statements concerning prohibitedtampering acts and maintenance, and thenoise warranty found in the Warranty Guide,are applicable to complete chassis cabs over10,000 lb (4,536 kg) GVWR.
CATALYTIC CONVERTER
WARNINGS
Do not park, idle or drive your vehicleon dry grass or other dry ground cover.The emission system heats up the enginecompartment and exhaust system, creatingthe risk of fire.
The normal operating temperature ofthe exhaust system is very high. Neverwork around or attempt to repair any part ofthe exhaust system until it has cooled. Usespecial care when working around thecatalytic converter. The catalytic converterheats up to a very high temperature afteronly a short period of engine operation andstays hot after the engine is switched off.
Exhaust leaks may result in entry ofharmful and potentially lethal fumesinto the passenger compartment. If you smellexhaust fumes inside your vehicle, have yourvehicle inspected immediately. Do not driveif you smell exhaust fumes.
Your vehicle has various emission controlcomponents and a catalytic converter thatenables it to comply with applicable exhaustemission standards.
To make sure that the catalytic converter andother emission control components continueto work properly:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 266).
•Use only the specified fuel listed.
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Resulting component damage maynot be covered by the vehicle Warranty.
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Engine Emission Control

The scheduled maintenance items listed inscheduled maintenance information areessential to the life and performance of yourvehicle and to its emissions system.
If you use anything other than Ford,Motorcraft or Ford-authorized parts formaintenance replacements or for service ofcomponents affecting emission control, suchnon-Ford parts should be equivalent togenuine Ford Motor Company parts inperformance and durability.
Illumination of the service engine soonindicator, charging system warning light orthe temperature warning light, fluid leaks,strange odors, smoke or loss of enginepower could indicate that the emissioncontrol system is not working properly.
An improperly operating or damaged exhaustsystem may allow exhaust to enter thevehicle. Have a damaged or improperlyoperating exhaust system inspected andrepaired immediately.
Do not make any unauthorized changes toyour vehicle or engine. By law, vehicleowners and anyone who manufactures,repairs, services, sells, leases, tradesvehicles, or supervises a fleet of vehicles arenot permitted to intentionally remove anemission control device or prevent it fromworking. Information about your vehicle’semission system is on the Vehicle EmissionControl Information Decal located on or nearthe engine. This decal also lists enginedisplacement.
Please consult your warranty information forcomplete details.
On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as theon-board diagnostics system (OBD-II) thatmonitors the engine’s emission controlsystem. The system protects the environmentby making sure that your vehicle continuesto meet government emission standards. TheOBD-II system also assists a servicetechnician in properly servicing your vehicle.
When the service engine soonindicator illuminates, the OBD-IIsystem has detected a malfunction.Temporary malfunctions may cause theservice engine soon indicator to illuminate.Examples are:
1. Your vehicle has run out of fuel—theengine may misfire or run poorly.
2.Poor fuel quality or water in the fuel—theengine may misfire or run poorly.
3. The fuel fill inlet may not have closedproperly. See Refueling (page 182).
4. Driving through deep water—theelectrical system may be wet.
You can correct these temporarymalfunctions by filling the fuel tank with goodquality fuel, properly closing the fuel fill inletor letting the electrical system dry out. Afterthree driving cycles without these or anyother temporary malfunctions present, theservice engine soon indicator should stay offthe next time you start the engine. A drivingcycle consists of a cold engine startupfollowed by mixed city and highway driving.No additional vehicle service is required.
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If the service engine soon indicator remainson, have your vehicle serviced at the firstavailable opportunity. Although somemalfunctions detected by the OBD-II may nothave symptoms that are apparent, continueddriving with the service engine soon indicatoron can result in increased emissions, lowerfuel economy, reduced engine andtransmission smoothness and lead to morecostly repairs.
Readiness for Inspection andMaintenance (I/M) Testing
Some state and provincial and localgovernments may haveInspection/Maintenance (I/M) programs toinspect the emission control equipment onyour vehicle. Failure to pass this inspectioncould prevent you from getting a vehicleregistration.
If the service engine soon indicatoris on or the bulb does not work,your vehicle may need service.See On-Board Diagnostics.
Your vehicle may not pass the I/M test if theservice engine soon indicator is on or notworking properly (bulb is burned out), or ifthe OBD-II system has determined that someof the emission control systems have notbeen properly checked. In this case, thevehicle is not ready for I/M testing.
If the vehicle’s engine or transmission hasjust been serviced, or the battery hasrecently run down or been replaced, theOBD-II system may indicate that the vehicleis not ready for I/M testing. To determine ifthe vehicle is ready for I/M testing, turn theignition key to the on position for 15 secondswithout cranking the engine. If the serviceengine soon indicator blinks eight times, itmeans that the vehicle is not ready for I/Mtesting; if the service engine soon indicatorstays on solid, it means that your vehicle isready for I/M testing.
The OBD-II system checks the emissioncontrol system during normal driving. Acomplete check may take several days.
If the vehicle is not ready for I/M testing, youcan perform the following driving cycleconsisting of mixed city and highway driving:
1. 15 minutes of steady driving on anexpressway or highway followed by 20minutes of stop-and-go driving with atleast four 30-second idle periods.
2.Allow your vehicle to sit for at least eighthours with the ignition off. Then, start thevehicle and complete the above drivingcycle. The vehicle must warm up to itsnormal operating temperature. Oncestarted, do not turn off the vehicle untilthe above driving cycle is complete.
If the vehicle is still not ready for I/M testing,you need to repeat the above driving cycle.
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AUTOMATIC TRANSMISSION
WARNINGS
Always fully apply the parking brake.Make sure you shift into park (P) forvehicles with an automatic transmission.Switch the ignition off and remove the keywhenever you leave your vehicle.
Do not apply the brake pedal andaccelerator pedal simultaneously.Applying both pedals simultaneously formore than a few seconds will limit engineperformance, which may result in difficultymaintaining speed in traffic and could leadto serious injury.
Note:You may not be able to shift out ofpark (P) unless the intelligent access key isinside your vehicle.
Push Button Shift Transmission
Your vehicle is equipped with an electronictransmission. The shift buttons are locatedon the instrument panel. Select the gears bypressing and releasing the PRNDL buttons.
Every time you select a gear, the selectedbutton lights up. You also see the gearselected appear in the instrument cluster.
Understanding the Positions of yourElectronic Transmission
Note:Always come to a complete stopbefore putting your vehicle into and out ofpark (P).
Putting your vehicle in gear:
1. Fully press down the brake pedal.
2. Press and release the button on theinstrument panel of the gear you want toselect.
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Reverse (R)
With the transmission in reverse (R), yourvehicle moves backward. Always come to acomplete stop before shifting into and outof reverse (R).
Neutral (N)
Press the neutral (N) button to put yourvehicle in neutral. In neutral, your vehicle canstart and is free to roll. Hold the brake pedaldown when in this position.
Stay in Neutral mode
Stay in Neutral mode allows your vehicle tostay in neutral when you exit your vehicle.Your vehicle must be stationary to enter thismode.
To enter Stay in Neutral mode:
1.Press the neutral (N) button on the shifterassembly.
2. The message Select N Again to EnterStay in Neutral mode appears in theinformation display screen.
3. Press the neutral (N) button again toenter Stay in Neutral mode.
The message Stay in Neutral modeengaged appears in the instrument clusterwhen your vehicle has entered Stay inNeutral mode.
Note:During this mode the neutral (N) buttonflashes continuously and the instrumentcluster displays neutral as the selected gear.
Exiting Stay in Neutral mode
To disable Stay in Neutral mode put yourvehicle in another gear. See the Putting theVehicle in Gear section for instructions onhow to do this.
Entering a Carwash
Note:Always put your vehicle in Stay inNeutral mode when entering an automaticcar wash. Failure to do this could result invehicle damage that may not be covered bywarranty.
Drive (D)
The normal driving position for the best fueleconomy.
Drive (D) with Grade Assist
Activate grade assist through theinformation display settings menu.See General Information (page112).
Grade assist:
•Provides additional grade braking with acombination of engine motoring andhigh-voltage battery charging to helpmaintain vehicle speed when descendinga grade.
•As your vehicle determines the amountof engine motoring and high-voltagebattery charging, you may notice theengine speed increasing and decreasingto help maintain your vehicle speed whendescending a grade.
The grade assist lamp illuminatesgrey when the grade assist featureis switched on through theinstrument display settings menu. The lampchanges from grey to green when gradeassist is actively providing additional gradebraking.
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Low (L)
•Provides maximum engine braking.
•The transmission may be put into low (L)at any vehicle speed.
•Not intended for use under extended ornormal driving conditions and results inlower fuel economy.
Brake-Shift Interlock Override
WARNINGS
Do not drive your vehicle until youverify that the stoplamps are working.
When doing this procedure, you needto take the transmission out of park (P)which means your vehicle can roll freely. Toavoid unwanted vehicle movement, alwaysfully apply the parking brake prior to doingthis procedure. Use wheels chocks ifappropriate.
If the parking brake is fully released,but the brake warning lamp remainsilluminated, the brakes may not be workingproperly. Have your vehicle checked as soonas possible.
Note:See your authorized dealer as soonas possible if this procedure is used.
Note:For some markets this feature isdisabled.
Note:This feature only functions if your12-volt battery has power. If vehicle batteryvoltage is not sufficient, an external 12-voltpower source (for example, jumper cables,battery charger or jump pack) may berequired to function the interlock overrideswitch.
Use the brake-shift interlock override tomove your transmission from the parkposition in the event of an electricalmalfunction. If your vehicle has a deadbattery, an external power source is required.
1. Apply the parking brake and turn yourignition off before performing thisprocedure.
2. Locate your brake-shift interlock accessslot. The slot is located near the centerconsole. The access slot does not havea label.
Note:Make sure that you correctly identifythe access hole as not to damage the mediahub.
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3. Using a tool, press and hold the brakeshift interlock switch. The shift buttonson the instrument panel flash when yourvehicle is in override mode.
4. With the override switch still held, pressthe neutral button (N) to shift from park.
5. Release the override button.
6. Your vehicle remains in Stay in Neutralmode for wrecker towing purposes orcan be shifted to the desired gear anddriven (if possible).
7. Release the parking brake.
If Your Vehicle Gets Stuck In Mud orSnow
Note:Do not rock your vehicle if the engineis not at normal operating temperature ordamage to the transmission may occur.
Note:Do not rock your vehicle for more thana minute or damage to the transmission andtires may occur, or the engine may overheat.
If your vehicle gets stuck in mud or snow,you may be able to rock it out by shiftingbetween forward and reverse gears,stopping between shifts in a steady pattern.Press lightly on the accelerator in each gear.
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