automatic transmission LINCOLN MKZ 2018 Owner's Guide

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.
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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.
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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.
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MaintenanceE158845 E158846

TRANSMISSION CODE
DESIGNATION
The transmission code is on the SafetyCompliance Certification Label. Thefollowing table shows the transmission codealong with the transmission description.
CodeDescription
CSix-speed automatic transmission 6F55
WSix-speed automatic transmission 6F35
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Capacities and SpecificationsE167814

CAPACITIES AND SPECIFICATIONS - 2.0L
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant under high pressure. Only qualified personnel should service the airconditioning refrigerant system. Opening the air conditioning refrigerant system can cause personal injury.
CapacityItem
5.7 qt (5.4 L)Engine oil (with oil filter).
8.5 qt (8 L)Engine coolant.
Between MIN/MAX on brake fluid reservoirBrake fluid.
16.0–20.8 fl oz (473–615 ml)Rear differential fluid (All Wheel Drive).
15.2 fl oz (450 ml)*Power Transfer Unit fluid (All Wheel Drive).
9.0 qt (8.5 L)**Automatic transmission fluid.
Fill as requiredWindshield washer fluid.
16.5 gal (62.5 L)Fuel tank (Front Wheel Drive).
18.0 gal (68.1 L)Fuel tank (All Wheel Drive).
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Capacities and Specifications

SpecificationName
CXY-75W140-1L
WSS-M2C938-AAutomatic transmission fluid (U.S. and Mexico):MERCON LVMotorcraft® MERCON LV Automatic Transmission FluidXT-10-QLVC
WSS-M2C938-AAutomatic transmission fluid (Canada):MERCON LVMotorcraft® MERCON LV Automatic Transmission FluidCXT-10-LV12
WSS-M14P19-AWindshield washer fluid (U.S. and Mexico):Motorcraft® Premium Windshield Wash Concentrate with BitterantZC-32-B2
WSS-M14P19-AWindshield washer fluid (Canada):Motorcraft® Premium Quality Windshield Washer FluidCXC-37-(A, B, D, F)
WSS-M17B21-AA/C refrigerant (U.S.):R-1234yf RefrigerantYN-33-A
WSS-M17B21-AA/C refrigerant (Canada):R-1234yf RefrigerantHS7Z-19B519-BA
WSH-M17B19-AA/C refrigerant (Mexico):Motorcraft® R-134a Refrigerant
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Capacities and Specifications

If you use oil and fluids that do not meet thedefined specification and viscosity grade,this may lead to:
•Component damage, which the vehiclewarranty does not cover.
•Longer engine cranking periods.
•Increased emission levels.
•Reduced engine performance.
•Reduced fuel economy.
•Degraded brake performance.
We recommend Motorcraft motor oil for yourvehicle. If Motorcraft oil is not available, usemotor oils of the recommended viscositygrade that meet API SN requirements anddisplay the API Certification Mark for gasolineengines. Do not use oil labeled with API SNservice category unless the label alsodisplays the API certification mark.
An oil that displays this symbol conforms tocurrent engine, emission system and fueleconomy performance standards of ILSAC.
Do not use supplemental engine oil additivesbecause they are unnecessary and couldlead to engine damage that may not becovered by your vehicle warranty.
Note:Ford recommends using DOT 4 LowViscosity (LV) High Performance Brake Fluidor equivalent meeting WSS-M6C65-A2. Useof any fluid other than the recommendedfluid may cause degraded brakeperformance and not meet the Fordperformance standards. Keep brake fluidclean and dry. Contamination with dirt,water, petroleum products or other materialsmay result in brake system damage andpossible failure.
Note: Automatic transmissions that requireMERCON® LV transmission fluid should onlyuse MERCON® LV transmission fluid. Theuse of any other fluid may causetransmission damage.
Alternative Engine Oil for ExtremelyCold Climates
To improve engine cold start performance,we recommend that you use the followingalternative engine oil in extremely coldclimates, where the ambient temperaturereaches -22.0°F (-30°C) or below.
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Capacities and SpecificationsE142732

CAPACITIES AND SPECIFICATIONS - 3.0L
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant under high pressure. Only qualified personnel should service the airconditioning refrigerant system. Opening the air conditioning refrigerant system can cause personal injury.
CapacityItem
6.0 qt (5.7 L)Engine oil (with oil filter).
11.4 qt (10.8 L)Engine coolant (Front Wheel Drive).
11.5 qt (10.9 L)Engine coolant (All Wheel Drive).
Between MIN/MAX on brake fluid reservoirBrake fluid.
16.0–20.8 fl oz (473–615 ml)Rear differential fluid (All Wheel Drive).
15.2 fl oz (450 ml)*Power Transfer Unit fluid (All Wheel Drive).
11.6 qt (11 L)**Automatic transmission fluid.
Fill as requiredWindshield washer fluid.
18.0 gal (68.1 L)Fuel tank (Front Wheel Drive).
18.0 gal (68.1 L)Fuel tank (All Wheel Drive).
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Capacities and Specifications

SpecificationName
CXY-75W140-1L
WSS-M2C938-AAutomatic transmission fluid (U.S. and Mexico):MERCON LVMotorcraft® MERCON LV Automatic Transmission FluidXT-10-QLVC
WSS-M2C938-AAutomatic transmission fluid (Canada):MERCON LVMotorcraft® MERCON LV Automatic Transmission FluidCXT-10-LV12
WSS-M14P19-AWindshield washer fluid (U.S. and Mexico):Motorcraft® Premium Windshield Wash Concentrate with BitterantZC-32-B2
WSS-M14P19-AWindshield washer fluid (Canada):Motorcraft® Premium Quality Windshield Washer FluidCXC-37-(A, B, D, F)
WSS-M17B21-AA/C refrigerant (U.S.):R-1234yf RefrigerantYN-33-A
WSS-M17B21-AA/C refrigerant (Canada):R-1234yf RefrigerantHS7Z-19B519-BA
WSH-M17B19-AA/C refrigerant (Mexico):Motorcraft® R-134a Refrigerant
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Capacities and Specifications

If you use oil and fluids that do not meet thedefined specification and viscosity grade,this may lead to:
•Component damage, which the vehiclewarranty does not cover.
•Longer engine cranking periods.
•Increased emission levels.
•Reduced engine performance.
•Reduced fuel economy.
•Degraded brake performance.
We recommend Motorcraft motor oil for yourvehicle. If Motorcraft oil is not available, usemotor oils of the recommended viscositygrade that meet API SN requirements anddisplay the API Certification Mark for gasolineengines. Do not use oil labeled with API SNservice category unless the label alsodisplays the API certification mark.
An oil that displays this symbol conforms tocurrent engine, emission system and fueleconomy performance standards of ILSAC.
Do not use supplemental engine oil additivesbecause they are unnecessary and couldlead to engine damage that may not becovered by your vehicle warranty.
Note:Ford recommends using DOT 4 LowViscosity (LV) High Performance Brake Fluidor equivalent meeting WSS-M6C65-A2. Useof any fluid other than the recommendedfluid may cause degraded brakeperformance and not meet the Fordperformance standards. Keep brake fluidclean and dry. Contamination with dirt,water, petroleum products or other materialsmay result in brake system damage andpossible failure.
Note:Automatic transmissions that requireMERCON® LV transmission fluid should onlyuse MERCON® LV transmission fluid.
Note:The use of any other fluid may causetransmission damage.
Alternative Engine Oil for ExtremelyCold Climates
To improve engine cold start performance,we recommend that you use the followingalternative engine oil in extremely coldclimates, where the ambient temperaturereaches -22.0°F (-30°C) or below.
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Capacities and SpecificationsE142732