2018 LINCOLN MKZ maintenance

WARNINGS
Keep batteries out of reach of children.Batteries contain sulfuric acid. Avoidcontact with skin, eyes or clothing. Shieldyour eyes when working near the battery toprotect against possible splashing of acidsolution. In case of acid contact with skin oreyes, flush immediately with water for aminimum of 15 minutes and get promptmedical attention. If acid is swallowed, call aphysician immediately.
Battery posts, terminals and relatedaccessories contain lead and leadcompounds. Wash hands after handling.
For vehicles with Auto-Start-Stop thebattery requirement is different. Youmust replace the battery with one of exactlythe same specification.
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:If your vehicle has a battery cover,after cleaning or replacing the battery, makesure you reinstall it.
Note:See an authorized dealer for batteryaccess, testing, or replacement.
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.
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,some engine control settings are maintainedby power from the battery. Some enginecomputer settings, like the idle trim and fueltrim strategy, optimize the driveability andperformance of the engine. The clock andradio station presets are also maintained inmemory by power from the low-voltagebattery. These settings are erased when atechnician disconnects and connects thelow-voltage battery.
To restore the settings, do the following:
Note:Until you switch the ignition to the onposition, you will receive a message in yourinformation display stating that your vehicleis not in park.
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.
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Maintenance

5. Run the engine until it reaches normaloperating temperature. While the engineis warming up, complete the following:Reset the clock. See Audio Unit (page395). Reset the power windowsbounce-back feature. See PowerWindows (page 96). Reset the radiostation presets. See Audio Unit (page395).
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.
Note:Certain features may not operate ifthe battery monitor system is not reset witha scan tool following a jump start or batteryreplacement. Normal electrical accessoryoperation should resume after your vehicleis left undisturbed for 8 hours.
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 batterycables to maintain battery charge for quickstarting.
CHECKING THE WIPER BLADES
Run the tip of your fingers over the edge ofthe blade to check for roughness.
Clean the wiper blades with washer fluid orwater applied with a soft sponge or cloth.
CHANGING THE WIPER BLADES
Replace the wiper blades at least annuallyfor optimum performance.
You can improve poor wiper quality bycleaning the wiper blades and thewindshield.
Note:Do not hold the wiper blade whenlifting the wiper arm.
Note:Make sure that the wiper arm doesnot spring back against the glass when thewiper blade is not attached.
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1. Pull the wiper blade and arm away fromthe glass. Press the locking buttonstogether.
2. Slightly rotate the wiper blade.
3. Remove the wiper blade.
4. Install in the reverse order.
Note:Make sure that the wiper blade locksinto place.
ADJUSTING THE HEADLAMPS
Vertical Aim Adjustment
The headlamps on your vehicle are properlyaimed at the assembly plant. If your vehiclehas been in an accident, the alignment ofyour headlamps should be checked by yourauthorized dealer.
Headlamp Aiming Target
8 feet (2.4 meters)A
Center height of lamp to groundB
25 feet (7.6 meters)C
Horizontal reference lineD
Vertical Aim Adjustment Procedure
1.Park the vehicle directly in front of a wallor screen on a level surface,approximately 25 ft (7.6 m) away.
2.Measure the height of the headlamp bulbcenter from the ground and mark an 8 ft(2.4 m) horizontal reference line on thevertical wall or screen at this height.
Note:To see a clearer light pattern foradjusting, you may want to block the lightfrom one headlamp while adjusting theother.
3. Turn on the low beam headlamps toilluminate the wall or screen and openthe hood.
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4.On the wall or screen you will observe aflat zone of high intensity light located atthe top of the right hand portion of thebeam pattern. If the top edge of the highintensity light zone is not at the horizontalreference line, the headlamp will needto be adjusted.
5. Locate the vertical adjuster on eachheadlamp. Using a Phillips #2screwdriver, turn the adjuster eitherclockwise or counterclockwise in orderto adjust the vertical aim of theheadlamp. The horizontal edge of thebrighter light should touch the horizontalreference line.
6. Close the hood and turn off the lamps.
Horizontal Aim Adjustment
The horizontal aim does not require anyadjustment for this vehicle. If a fault occurs,have the system checked by an authorizeddealer.
CHANGING A BULB
Replacing Bulbs
For replacing bulbs, see your authorizeddealer.
BULB SPECIFICATION CHART
Replacement bulbs are specified in the chartbelow. Headlamp bulbs must be marked withan authorized “D.O.T.” for North America tomake sure they have the proper lampperformance, light brightness, light pattern,and safe visibility. The correct bulbs will notdamage the lamp assembly or void the lampassembly warranty and will provide qualitybulb illumination time.
Trade nameFunction
LEDHeadlamp high beam - high series
HIDHeadlamp high beam - low series
LEDHeadlamp low beam - high series
HIDHeadlamp low beam - low series
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Trade nameFunction
LEDSide marker lamp - front
LEDPark lamp - front
LEDSignature lamp
LEDDaytime running lamp
LEDTurn lamp - front
LEDTail and brake lamp
LEDReverse lamp
LEDTurn lamp - rear
LEDSide marker lamp - rear
LEDLicense plate lamp
LEDTrunk lamp
LEDHigh-mount brake lamp
LEDSide repeater lamp
LEDGlove compartment lamp
LEDInterior lamp
To replace any bulb, see your authorized dealer.
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Maintenance

CHANGING THE ENGINE AIR
FILTER
WARNING
Do not start the engine with the air filterremoved. This can cause damage notcovered by the vehicle Warranty and canresult in serious injury.
Only use the specified replacement air filter.See Capacities and Specifications (page373).
Change the air filter element at the correctinterval. See Scheduled Maintenance (page509).
When changing the engine air filter, do notallow debris or foreign material to enter theair induction system. The engine andturbocharger are susceptible to damage fromeven small particles.
Note:Failure to use the correct air filterelement may result in severe enginedamage. Resulting component damage maynot be covered by the vehicle Warranty.
1. Release the clamps that secure the airfilter cover to the housing.
2. Carefully lift the air filter housing cover.
3.Remove the air filter element from the airfilter housing.
4. Wipe any dirt or debris from the air filterhousing and cover to make sure no dirtgets in the engine and that you have agood seal.
5.Install a new air filter element. Be carefulnot to crimp the filter element edgesbetween the air filter housing and cover. This could cause filter damage and allowunfiltered air to enter the engine if it isnot properly seated.
6. Install the air filter housing cover.
7. Engage the clips to secure the air filterhousing cover to the air filter housing.
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CLEANING THE WHEELS
1. Regularly clean them with a wheelcleaner. We recommend that you useFord approved wheel cleaner if available.
2. Remove dirt and brake dust with asponge.
3. Remove tar and grease with a bug andtar remover. We recommend that you useFord approved bug and tar remover ifavailable.
4. Thoroughly rinse the wheels with waterafter cleaning.
If you intend on parking your vehicle for anextended period after cleaning the wheelswith a wheel cleaner, drive your vehicle fora few minutes before doing so. This reducesthe risk of corrosion of the brake discs, brakepads and linings.
Do not clean the wheels when they are hot.
Note: Some car washes could damagewheel rims and covers.
Note: Using non-recommended cleaners,harsh cleaning products, chrome wheelcleaners or abrasive materials coulddamage wheel rims and covers.
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.
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Vehicle Care

7. Check the sidewalls to make surethere are no gouges, cuts or bulges.
Inspecting Your Tires and Wheel ValveStems
Periodically inspect the tire treads for
uneven or excessive wear and removeobjects such as stones, nails or glassthat may be wedged in the treadgrooves. Check the tire and valve stemsfor holes, cracks, or cuts that may permitair leakage and repair or replace the tireand replace the valve stem. Inspect thetire sidewalls for cracking, cuts, bruisesand other signs of damage or excessivewear. If internal damage to the tire issuspected, have the tire demounted andinspected in case it needs to be repairedor replaced. For your safety, tires thatare damaged or show signs of excessivewear should not be used because theyare more likely to blow out or fail.
Improper or inadequate vehiclemaintenance can cause tires to wearabnormally. Inspect all your tires,including the spare, frequently, andreplace them if one or more of thefollowing conditions exist:
Tire Wear
When the tread is worn down to 0.08 in(2 mm), tires must be replaced to helpprevent your vehicle from skidding andhydroplaning. Built-in treadwearindicators, or wear bars, which look likenarrow strips of smooth rubber acrossthe tread will appear on the tire whenthe tread is worn down to 0.08 in(2 mm).
When the tire tread wears down to thesame height as these wear bars, the tireis worn out and must be replaced.
Damage
Periodically inspect the tire treads andsidewalls for damage (such as bulges inthe tread or sidewalls, cracks in thetread groove and separation in the treador sidewall). If damage is observed orsuspected have the tire inspected by atire professional. Tires can be damagedduring off-road use, so inspection afteroff-road use is also recommended.
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