brake LINCOLN MKZ 2018 Repair Manual

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:There may be electrical itemssuch as fuses or relays that can affect
trailer towing operation. See Fuses(page 282).
The load capacity of your vehicle isdesignated by weight not volume. Youmay not necessarily be able to use allavailable space when loading yourvehicle or trailer.
Towing a trailer places extra load on theengine, transmission, axle, brakes, tires,and suspension. Inspect thesecomponents before, during and aftertowing.
Load Placement
To help minimize how trailer movementaffects the vehicle when driving:
•Load the heaviest items closest tothe trailer floor.
•Load the heaviest items in the centerof the left and right side trailer tires.
•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 thevehicle, 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 251).
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
RECOMMENDED TOWING
WEIGHTS
Note:Do not exceed the trailer weightfor your vehicle configuration listed inthe chart below.
Note:Be sure to take into considerationtrailer frontal area. Do not exceed 12feet2 (1.11 meters2).
Note:For high altitude operation,reduce the gross combined weight by2% per 1000 feet (300 meters) startingat the 1000 foot (300 meter) elevationpoint.
Note:Certain states require electrictrailer brakes for trailers over a specifiedweight. Be sure to check stateregulations for this specified weight. Themaximum trailer weights listed may belimited to this specified weight, as thevehicle’s electrical system may notinclude the wiring connector needed to
activate electric trailer brakes.
Your vehicle may tow a trailer providedthe maximum trailer weight is less thanor equal to the maximum trailer weightlisted for your vehicle configuration onthe following chart.
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Towing

ESSENTIAL TOWING CHECKS
Follow these guidelines for safe towing:
•Do not tow a trailer until you drive yourvehicle at least 1,000 mi (1,600 km).
•Consult your local motor vehicle laws fortowing a trailer.
•See the instructions included with towingaccessories for the proper installationand adjustment specifications.
•Service your vehicle more frequently ifyou tow a trailer. See your scheduledmaintenance information.
•If you use a rental trailer, follow theinstructions the rental agency gives you.
You can find information on loadspecification terms found on the tire labeland Safety Compliance label as well asinstructions on calculating your vehicle's loadin the Load Carrying chapter. See Load Limit(page 251).
Remember to account for the trailer tongueweight as part of your vehicle load whencalculating the total vehicle weight.
Hitches
Do not use a hitch that either clamps ontothe bumper or attaches to the axle.
Distribute the trailer load so 10-15% of thetotal trailer weight is on the tongue.
Safety Chains
Note:Never attach safety chains to thebumper.
Always connect the safety chains to the hookretainers of your vehicle hitch.
To connect the safety chains, cross themunder the trailer tongue and allow enoughslack for turning tight corners. Do not allowthe chains to drag on the ground.
Trailer Brakes
WARNING
Do not connect a trailer's hydraulicbrake system directly to your vehicle'sbrake system. Your vehicle may not haveenough braking power and your chances ofhaving a collision greatly increase.
Electric brakes and manual, automatic orsurge-type trailer brakes are safe if you installthem properly and adjust them to themanufacturer's specifications. The trailerbrakes must meet local and federalregulations.
The rating for the tow vehicle's brakingsystem operation is at the gross vehicleweight rating, not the gross combinedweight rating.
Separate functioning brake systems arerequired for safe control of towed vehiclesand trailers weighing more than 1500pounds (680 kilograms) when load.
Trailer Lamps
WARNING
Never connect any trailer lamp wiringto the vehicle's tail lamp wiring; thismay damage the electrical system resultingin fire. Contact your authorized dealer assoon as possible for assistance in propertrailer tow wiring installation. Additionalelectrical equipment may be required.
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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

Vehicles Equipped with a 3.0L Engine
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.
If you tow your vehicle with all four wheelson the ground:
•Tow only in the forward direction.
•Release the parking brake.
Neutral Tow
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 the neutral tow option under thevehicle settings menu in the informationdisplay. See General Information (page111).
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.
If the process completes successfully:
•the N on the push-button transmissionblinks slowly
•A confirmation message appears in theinformation display.
Note:If the parking brake is applied, amessage appears in the information display.
Note:Do not exceed 65 mph (105 km/h).
Note:Start the engine and allow it to run forfive minutes at the beginning of each dayand every six hours (or fewer). Shut theengine off and verify that a messageappears indicating neutral tow has beenengaged, before continuing to tow.
Exit Neutral Tow mode, make sure theignition is on (engine can be on or off ), pressthe brake pedal and select P on thepush-button transmission.
If the process is completed successfully, amessage appears indicating that neutral towhas disengaged in both the instrumentcluster and push-button transmission displayP.
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Towing

BREAKING-IN
You need to break in new tires forapproximately 300 mi (480 km). During thistime, your vehicle may exhibit some unusualdriving characteristics.
Avoid driving too fast during the first 1,000 mi(1,600 km). Vary your speed frequently andchange up through the gears early. Do notlabor the engine.
Do not tow during the first 1,000 mi(1,600 km).
ECONOMICAL DRIVING
Fuel economy is affected by several thingssuch as how you drive, the conditions youdrive under and how you maintain yourvehicle.
There are some things to keep in mind thatmay improve your fuel economy:
•Accelerate and slow down in a smooth,moderate fashion.
•Drive at steady speeds.
•Anticipate stops; slowing down mayeliminate the need to stop.
•Combine errands and minimizestop-and-go driving (When runningerrands, go to the furthest destinationfirst and then work your way back home).
•Close the windows for high-speeddriving.
•Drive at reasonable speeds.
•Keep the tires properly inflated and useonly the recommended size.
•Use the recommended engine oil.
•Perform all regularly scheduledmaintenance.
There are also some things you may want toavoid doing because they reduce your fueleconomy:
•Avoid sudden or hard accelerations.
•Avoid revving the engine before turningoff the car.
•Avoid long idle periods.
•Do not warm up your vehicle on coldmornings.
•Reduce the use of air conditioning andheat.
•Avoid using speed control in hilly terrain.
•Do not rest your foot on the brake pedalwhile driving.
•Avoid carrying unnecessary weight.
•Avoid adding particular accessories toyour vehicle (e.g. bug deflectors,rollbars/light bars, running boards, skiracks).
•Avoid driving with the wheels out ofalignment.
DRIVING THROUGH WATER
WARNING
Do not drive through flowing or deepwater as you may lose control of yourvehicle.
Note:Driving through standing water cancause vehicle damage.
Note:Engine damage can occur if waterenters the air filter.
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Driving Hints

Before driving through standing water, checkthe depth. Never drive through water that ishigher than the bottom of the front rockerarea of your vehicle.
When driving through standing water, drivevery slowly and do not stop your vehicle. Your brake performance and traction maybe limited. After driving through water andas soon as it is safe to do so:
•Lightly press the brake pedal to dry thebrakes and to check that they work.
•Check that the horn works.
•Check that the exterior lights work.
•Turn the steering wheel to check that thesteering power assist works.
FLOOR MATS
WARNINGS
Use a floor mat designed to fit thefootwell of your vehicle that does notobstruct the pedal area. Failure to follow thisinstruction could result in the loss of controlof your vehicle, personal injury or death.
Pedals that cannot move freely cancause loss of vehicle control andincrease the risk of serious personal injury.
Secure the floor mat to both retentiondevices so that it cannot slip out ofposition and interfere with the pedals. Failureto follow this instruction could result in theloss of control of your vehicle, personal injuryor death.
WARNINGS
Do not place additional floor mats orany other covering on top of theoriginal floor mats. This could result in thefloor mat interfering with the operation of thepedals. Failure to follow this instruction couldresult in the loss of control of your vehicle,personal injury or death.
Always make sure that objects cannotfall into the driver foot well while yourvehicle is moving. Objects that are loose canbecome trapped under the pedals causinga loss of vehicle control.
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Driving HintsE259345 E142666

Note: When you try to restart your vehicleafter a fuel shutoff, the vehicle makes surethat various systems are safe to restart. Once the vehicle determines the systemsare safe, then the vehicle allows you torestart.
Note: In the event that your vehicle doesnot restart after your third attempt, contacta qualified technician.
The fuel pump shutoff stops the flow of fuelto the engine in the event of a moderate tosevere crash. Not every impact causes ashutoff.
Should your vehicle shut off after a crash,you may restart your vehicle.
1. Press START/STOP to switch off yourvehicle.
2.Press the brake pedal and START/STOPto switch on your vehicle.
3. Remove your foot from the brake pedaland press START/STOP to switch offyour vehicle.
4. You can attempt to start the vehicle bypressing the brake pedal andSTART/STOP, or press START/STOPwithout pressing the brake pedal.
JUMP STARTING THE VEHICLE
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.
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.
Use only adequately sized cables withinsulated clamps.
Preparing Your Vehicle
Do not attempt to push-start your automatictransmission vehicle.
Note:Attempting to push-start a vehicle withan automatic transmission may causetransmission damage.
Note:Use only a 12-volt supply to start yourvehicle.
Note:Do not disconnect the battery of thedisabled vehicle as this could damage thevehicle electrical system.
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Roadside Emergencies

Protected ComponentsFuse RatingFuse or Relay Number
Not used.-24
Run-start anti-lock brake system.10A325
Run-start powertrain control module.10A326
Not used.-27
Not used.-28
MAF (mass air flow).5A229
Not used.-30
Not used.-31
Electric fan #1 relay.-32
Air conditioner clutch relay.-33
Not used.-34
Not used.-35
Not used.-36
Not used.-37
Electric fan 2 relay.-38
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Fuses