warning LINCOLN MKZ 2018 Owners Manual

Note:Do not remove the dipstick when theengine is running.
Note: If the oil level is between themaximum and minimum marks, the oil levelis acceptable. Do not add oil.
Note:The oil consumption of new enginesreaches its normal level after approximately3,000 mi (5,000 km).
Adding Engine Oil
WARNING
Do not remove the filler cap when theengine is running.
Do not use supplemental engine oil additivesbecause they are unnecessary and couldlead to engine damage that may not becovered by the vehicle Warranty.
Only use oils certified for gasoline enginesby the American Petroleum Institute (API). An oil with this trademark symbol conformsto the current engine and emission systemprotection standards and fuel economyrequirements of the International LubricantsSpecification Advisory Committee (ILSAC).
To top up the engine oil level do thefollowing:
1. Clean the area surrounding the engineoil filler cap before you remove it.
2. Remove the engine oil filler cap. SeeUnder Hood Overview (page 304). Turnit counterclockwise and remove it.
3. Add engine oil that meets Fordspecifications. See Capacities andSpecifications (page 380). You may haveto use a funnel to pour the engine oil intothe opening.
4. Recheck the oil level.
5. If the oil level is correct, replace thedipstick and make sure it is fully seated.
6. Replace the engine oil filler cap. Turn itclockwise until you feel a strongresistance.
Note: Do not add oil further than themaximum mark. Oil levels above themaximum mark may cause engine damage.
Note:Make sure you install the oil filler capcorrectly.
Note:Soak up any spillage with anabsorbent cloth immediately.
OIL CHANGE INDICATOR RESET
Use the information display controls on thesteering wheel to reset the oil changeindicator.
309
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
MaintenanceE142732

From the main menu scroll to:
Action and descriptionMessage
Press the right arrow button,then from this menu scroll tothe following message.
Settings
Press the right arrow button,then from this menu scroll tothe following message.
Vehicle
Press the right arrow button,then from this menu scroll tothe following message.
Oil Life
Press and hold the OK buttonuntil the instrument clusterdisplays the followingmessage.
Hold OK toReset
Reset Successful
When the oil change indicatorresets the instrument clusterdisplays 100%.
Remaining Life
{00}%
Action and descriptionMessage
If the instrument clusterdisplays one of the followingmessages, repeat theprocess.
Not Reset
Reset Cancelled
ENGINE COOLANT CHECK
WARNINGS
Never remove the coolant reservoircap when the engine is running or hot.
Do not put coolant in the windshieldwasher reservoir. If sprayed on thewindshield, coolant could make it difficult tosee through the windshield.
To reduce the risk of personal injury,make sure the engine is cool beforeunscrewing the coolant pressure relief cap.The cooling system is under pressure. Steamand hot liquid can come out forcefully whenyou loosen the cap slightly.
WARNINGS
Do not add coolant further than theMAX mark.
When the engine is cold, check theconcentration and level of the coolant at theintervals listed in the scheduled maintenanceinformation. See Scheduled Maintenance(page 509).
Note:Make sure that the coolant level isbetween the MIN and the MAX marks onthe coolant reservoir.
Note: Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.
Maintain coolant concentration within 48%to 50%, which equates to a freeze pointbetween -30°F (-34°C) and -34°F (-37°C).Coolant concentration should be checkedusing a refractometer. We recommend,Robinair® Coolant and Battery Refractometer75240 (Rotunda tool part number:ROB75240). We do not recommend the useof hydrometers or coolant test strips formeasuring coolant concentration.
310
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
Maintenance

Note:Automotive fluids are notinterchangeable. Do not use coolant orwindshield washer fluid outside of itsspecified function and vehicle location.
Note: Do not use stop leak pellets, coolingsystem sealants, or non-specified additivesas they can cause damage to the enginecooling or heating systems. Resultingcomponent damage may not be covered bythe vehicle Warranty.
Adding Coolant
WARNINGS
Do not add engine coolant when theengine is hot. Failure to follow thisinstruction could result in personal injury.
Never remove the coolant reservoircap when the engine is running or hot.
It is very important to use prediluted coolantmeeting the correct specification in order toavoid plugging the small passageways in theengine cooling system. See Capacities andSpecifications (page 380). Incorrectprediluted coolant use can cause damagenot covered by the vehicle Warranty.
If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
To top up the coolant level do the following:
1. Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
2. Add prediluted coolant meeting thecorrect specification. See Capacities andSpecifications (page 373).
3.Add enough prediluted coolant to reachthe correct level.
4. Replace the coolant reservoir cap, turnit clockwise until you feel a strongresistance.
5. Check the coolant level in the coolantreservoir the next few times you driveyour vehicle.
Note:During normal vehicle operation, thecoolant may change color from orange topink or light red. As long as the coolant isclear and uncontaminated, this color changedoes not indicate the coolant has degradednor does it require the coolant to be drained,the system to be flushed, or the coolant tobe replaced.
Do not mix different colors or types ofprediluted coolant in your vehicle. Mixing ofprediluted coolant or using an incorrectprediluted coolant may harm the engine orcooling system components and may not becovered by the vehicle Warranty.
In case of emergency, you can add a largeamount of water without engine coolant inorder to reach a vehicle service location. Inthis instance, qualified personnel:
1. Must drain the cooling system.
2. Chemically clean the cooling system.
3. Refill with prediluted coolant as soon aspossible.
Water alone, without prediluted coolant, cancause engine damage from corrosion,overheating or freezing.
Do not use the following as a coolantsubstitute:
•Alcohol.
•Methanol.
•Brine.
•Any coolant mixed with alcohol ormethanol antifreeze.
311
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
Maintenance

Alcohol and other liquids can cause enginedamage from overheating or freezing.
Do not add extra inhibitors or additives tothe coolant. These can be harmful andcompromise the corrosion protection of thecoolant.
Recycled Coolant
We do not recommend the use of recycledcoolant as an approved recycling process isnot yet available.
Dispose of used engine coolant in anappropriate manner. Follow yourcommunity's regulations and standards forrecycling and disposing of automotive fluids.
Severe Climates
If you drive in extremely cold climates:
•It may be necessary to increase thecoolant concentration above 50%.
•A coolant concentration of 60% providesimproved freeze point protection. Coolant concentrations above 60%decrease the overheat protectioncharacteristics of the coolant and maycause engine damage.
If you drive in extremely hot climates:
•It may be necessary to decrease thecoolant concentration to 40%.
•A coolant concentration of 40% providesimproved overheat protection. Coolantconcentrations below 40% decrease thefreeze and corrosion protectioncharacteristics of the coolant and maycause engine damage.
Vehicles driven year-round in non-extremeclimates should use prediluted coolant foroptimum cooling system and engineprotection.
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 coolanttemperature gauge moves toward the redzone:
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.
312
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
Maintenance

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
WARNINGS
Fail-safe mode is for use duringemergencies only. Operate yourvehicle in fail-safe mode only as long asnecessary to bring your vehicle to rest in asafe location and seek immediate repairs.When in fail-safe mode, your vehicle will havelimited power, will not be able to maintain
WARNINGS
high-speed operation, and may completelyshut down without warning, potentially losingengine power, power steering assist, andpower brake assist, which may increase thepossibility of a crash resulting in seriousinjury.
Never remove the coolant reservoircap when the engine is running or hot.
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:If this is not possible, wait a shortperiod for the engine to cool.
Engine Coolant TemperatureManagement (If Equipped)
WARNING
To reduce the risk of crash and injury,be prepared that the vehicle speedmay reduce and the vehicle may not be ableto accelerate with full power until the coolanttemperature reduces.
313
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
Maintenance

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 pull off the road. You cancontinue to drive your vehicle.
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. Pull off the road as soon as safelypossible and shift the transmission intopark (P).
2. Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. If thetemperature does not drop after severalminutes, 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
6F35/HF35 transmission (If Equipped)
Note:Transmission fluid should be checkedby an authorized dealer. If required, fluidshould be added by an authorized dealer.
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, the fluid levelshould be checked if the transmission is notworking properly, (For example: if thetransmission slips or shifts slowly) or if younotice some sign of fluid leakage. SeeScheduled Maintenance (page 509).
Do not use supplemental transmission fluidadditives, treatments or cleaning agents. Theuse of these materials may affecttransmission operation and result in damageto internal transmission components.
314
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
Maintenance

6F50/6F55 Transmission (If Equipped)
WARNINGS
The dipstick cap and surroundingcomponents may be hot; gloves arerecommended.
Use gloves when moving the air filterassembly. Components will be hot.
Note:Automatic transmission fluid expandswhen warmed. To obtain an accurate fluidcheck, drive the vehicle until it is warmed up(approximately 20 miles [30 kilometers]). Ifyour vehicle has been operated for anextended period at high speeds, in city trafficduring hot weather or pulling a trailer, thevehicle should be turned off until normaloperating temperatures are reached to allowthe fluid to cool before checking. Dependingon vehicle use, cooling times could take upto 30 minutes or longer.
Refer to your scheduled maintenanceinformation for scheduled intervals for fluidchecks and changes. Your transmission doesnot consume fluid. However, the fluid levelshould be checked if the transmission is notworking properly. For example, if thetransmission slips or shifts slowly or if younotice some sign of fluid leakage.
1.Drive the vehicle 20 miles (30 kilometers)or until it reaches normal operatingtemperature
2. Park the vehicle on a level surface andengage the parking brake.
3.With the parking brake engaged and yourfoot on the brake pedal, start the engineand move the gearshift lever through allof the gear ranges. Allow a minimum of10 seconds for each gear to engage.
4. Put the gearshift lever in P (Park) andleave the engine running.
Note:You will need to move the air filterassembly to access the transmissiondipstick.
5.Remove the dipstick, wiping it clean witha clean, dry lint free rag. If necessary,refer to Under hood overview in thischapter for the location of the dipstick.
6. Install the dipstick making sure it is fullyseated in the filler tube by turning it tothe locked position.
7.Remove the dipstick and inspect the fluidlevel. The fluid should be in thedesignated areas for normal operatingtemperature.
Moving the Air Filter Assembly (Accessingthe Dipstick)
WARNING
Do not run engine with the air filterdisconnected.
315
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
Maintenance

Adjusting Automatic Transmission FluidLevels
Before adding any fluid, make sure thecorrect type is used. The type of fluid usedis normally indicated on the dipstick and alsoin the Technical Specifications section in thischapter.
Note:An overfill condition of transmissionfluid may cause shift or engagementconcerns or possible damage.
Do not use supplemental transmission fluidadditives, treatments or cleaning agents. Theuse of these materials may affecttransmission operation and result in damageto internal transmission components.Reinstall the air filter assembly. After the fluidlevel has been checked and adjusted asnecessary, do the following:
1. Shut the engine off.
2. Loosen the clamp holding the air filterassembly to the rubber hose.
3.Rotate the air filter assembly 90 degreesclockwise without disconnecting thesensor.
4.Seat the air filter assembly back into thegrommets by pushing down on the airfilter assembly.
5. Tighten the clamp.
6. Install and tighten two bolts that attachair filter assembly to the front of thevehicle.
7. Install the bolt cover (if equipped).
8. Reinstall the harness retaining clip intothe front of the air filter assembly.
BRAKE FLUID CHECK
WARNINGS
Do not use any fluid other than therecommended brake fluid as this willreduce brake efficiency. Use of incorrect fluidcould result in the loss of vehicle control,serious personal injury or death.
Only use brake fluid from a sealedcontainer. Contamination with dirt,water, petroleum products or other materialsmay result in brake system damage or failure.Failure to adhere to this warning could resultin the loss of vehicle control, seriouspersonal injury or death.
Do not allow the fluid to touch yourskin or eyes. If this happens, rinse theaffected areas immediately with plenty ofwater and contact your physician.
318
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
MaintenanceE158845 E158846

WARNINGS
A fluid level between the MAX andMIN lines is within the normaloperating range and there is no need to addfluid. A fluid level not in the normal operatingrange could compromise the performanceof the system. Have your vehicle checkedimmediately.
To avoid fluid contamination, the reservoircap must remain in place and fully tight,unless you are adding fluid.
Only use fluid that meets Ford specifications.See Capacities and Specifications (page373).
WASHER FLUID CHECK
WARNING
If you operate your vehicle intemperatures below 41.0°F (5°C), usewasher fluid with antifreeze protection.Failure to use washer fluid with antifreezeprotection in cold weather could result inimpaired windshield vision and increase therisk of injury or accident.
Note:The front and rear washer systemsare supplied from the same reservoir.
Add fluid to fill the reservoir if the level is low.Only use a washer fluid that meets Fordspecifications. See Capacities andSpecifications (page 373).
State or local regulations on volatile organiccompounds may restrict the use of methanol,a common windshield washer antifreezeadditive. Washer fluids containingnon-methanol antifreeze agents should beused only if they provide cold weatherprotection without damaging the vehicle’spaint finish, wiper blades or washer system.
FUEL FILTER
2.0L Engines and 3.0L Engines withFWD
Your vehicle is equipped with a lifetime fuelfilter that is integrated with the fuel tank.Regular maintenance or replacement is notneeded.
3.0L Engines with AWD
The fuel filter on your vehicle must bereplaced at the specified service interval.See Scheduled Maintenance (page 509).
CHANGING THE 12V BATTERY
WARNINGS
Batteries normally produce explosivegases which can cause personal injury.Therefore, do not allow flames, sparks orlighted substances to come near the battery.When working near the battery, always shieldyour face and protect your eyes. Alwaysprovide correct ventilation.
When lifting a plastic-cased battery,excessive pressure on the end wallscould cause acid to flow through the ventcaps, resulting in personal injury and damageto the vehicle or battery. Lift the battery witha battery carrier or with your hands onopposite corners.
319
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
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.
320
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201706, First Printing
Maintenance