Page 186 of 575

Note:Beijing district only.
Description and ActionMessage
A warning message appearsin the information displaywhen the fuel system fails todepressurize or the fuel fillerdoor fails to open. You mayhave to use the fuel filler doormanual override lever.
Refuel ErrorSee Manual
If the information message appears, do thefollowing:
1.Check the fuel filler door for anything thatmay be obstructing its movement, forexample ice or snow.
2. Remove any obstruction from the fuelfiller door.
3. Press the button on the driver door toopen the fuel filler door.
4.If the fuel filler door fails to open and theinformation message remains in theinformation display, use the fuel fillerdoor manual override lever.
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
Advertised Capacity
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.
Fuel Economy
Your vehicle calculates fuel economy figuresthrough the trip computer average fuelfunction. See General Information (page110).
The first 1,000 mi (1,500 km) of driving is thebreak-in period of the engine. A moreaccurate measurement is obtained after2,000 mi (3,000 km).
183
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
Fuel and RefuelingE156033
Page 268 of 575

Note:Do not attach the end of the positivecable to the studs or L-shaped eyelet locatedabove the positive (+) terminal of yourvehicle’s battery. High current may flowthrough and cause damage to the fuses.
Note:To avoid reverse polarity connections,make sure that you correctly identify thepositive (+) and negative (-) terminals on boththe disabled and booster vehicles beforeconnecting the cables.
Negative prong (–).A
Positive prong (+).BNote:In the illustration, the bottom vehiclerepresents the booster vehicle.
Note:Make sure you remove the cap fromthe positive prong on your vehicle beforeconnecting the cables.
1. Connect the positive (+) jumper cable tothe positive (+) terminal of the dischargedbattery.
2.Connect the other end of the positive (+)cable to the positive (+) terminal of thebooster vehicle battery.
3. Connect the negative (-) cable to thenegative (-) terminal of the boostervehicle battery.
4.Make the final connection of the negative(-) cable to an exposed metal part of thestalled vehicle's engine, away from thebattery and the fuel injection system, orconnect the negative (-) cable to a groundconnection point if available.
Jump Starting
1. Start the engine of the booster vehicleand rev the engine moderately, or pressthe accelerator gently to keep yourengine speed between 2000 and 3000RPM, as shown in your tachometer.
265
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
Roadside EmergenciesE226509 4
2
1
3
E142664
Page 304 of 575

Engine oil dipstick. See Engine OilDipstick (page 301).H
Washer system fluid reservoir. SeeWasher Fluid Check (page 308).I
ENGINE OIL DIPSTICK
MINA
MAXB
ENGINE OIL CHECK
Note:Check the level before starting theengine.
Note:Make sure that the level is betweenthe MIN and the MAX marks.
1. Make sure that your vehicle is on levelground.
2. Turn the engine off and wait 10 minutesfor the oil to drain into the oil pan.
3. Remove the dipstick and wipe it with aclean, lint-free cloth. Replace the dipstickand remove it again to check the oil level.
If the level is at the MIN mark, add oilimmediately.
Adding Engine Oil
Note:Do not remove the filler cap when theengine is running.
Note:Do not add oil further than the MAXmark. Oil levels above the MAX mark maycause engine damage.
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).
1. Remove the filler cap.
2. Add engine oil that meets the Fordspecifications. See Capacities andSpecifications (page 353).
3. Replace the filler cap. Turn it until youfeel a strong resistance.
301
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
MaintenanceE170468
AB E142732
Page 311 of 575

Only use fluid that meets Ford specifications.See Capacities and Specifications (page353).
WASHER FLUID CHECK
WARNING: If you operate your vehiclein temperatures 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 ourspecifications. See Capacities andSpecifications (page 353).
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
Your vehicle is equipped with a lifetime fuelfilter that is integrated with the fuel tank.Regular maintenance or replacement is notneeded.
CHANGING THE 12V BATTERY
WARNING: Batteries normally produceexplosive gases which can cause personalinjury. Therefore, do not allow flames, sparksor lighted substances to come near thebattery. When working near the battery,always shield your face and protect youreyes. Always provide correct ventilation.
WARNING: When lifting a plastic-casedbattery, 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.
WARNING: Keep batteries out of reachof children. Batteries contain sulfuric acid.Avoid contact with skin, eyes or clothing.Shield your eyes when working near thebattery to protect against possible splashingof acid solution. In case of acid contact withskin or eyes, flush immediately with waterfor a minimum of 15 minutes and get promptmedical attention. If acid is swallowed, call aphysician immediately.
WARNING: Battery posts, terminalsand related accessories contain lead andlead compounds. Wash hands after handling.
308
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
Maintenance
Page 356 of 575
ENGINE SPECIFICATIONS
SpecificationMeasurement
122Cubic inches
Minimum 87 octaneRequired fuel
1-3-4-2Firing order
12.3:1Compression ratio
0.051 ± 0.002 in (1.3 ± 0.05 mm)Spark plug gap
Coil on plugIgnition system
353
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
Capacities and Specifications
Page 360 of 575
CAPACITIES AND SPECIFICATIONS
Capacities
WARNING: The air conditioning refrigerant system contains refrigerant under high pressure. Only qualified personnel should servicethe air conditioning refrigerant system. Opening the air conditioning refrigerant system can cause personal injury.
CapacityItem
4.5 qt (4.3 L)Engine oil (with oil filter).
8.9 qt (8.4 L)Engine coolant.
1.1 qt (1 L)Inverter system coolant.
Between MIN/MAX on brake fluid reservoirBrake fluid.
4.8 qt (4.5 L)1Automatic transmission fluid.
Fill as requiredWindshield washer fluid.
14.0 gal (53 L)Fuel tank.
18 oz (0.51 kg)A/C Refrigerant (U.S. and Canada).
357
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
Capacities and Specifications
Page 364 of 575

SpecificationName
-Lock cylinders (U.S.):Penetrating and Lock LubricantXL-1
-Lock cylinders (Canada):Penetrating FluidCXC-51-A
-Lock cylinders (Mexico):Penetrating and Lock LubricantMXL-1
If you use oil and fluids that do not meet thedefined specification and viscosity grade,this may lead to:
•Component damage which is notcovered by the vehicle warranty.
•Longer engine cranking periods.
•Increased emission levels.
•Reduced engine performance.
•Reduced fuel economy.
•Degraded brake performance.
We recommend Motorcraft® motor oil foryour vehicle. If Motorcraft® oil is notavailable, use motor oils of therecommended viscosity grade that meet APISN requirements and display the APICertification Mark for gasoline engines. Donot use oil labeled with API SN servicecategory unless the label also displays theAPI certification mark.
361
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
Capacities and SpecificationsE142732
Page 365 of 575

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 Extremely
Cold 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.
SpecificationName
WSS-M2C947-B1Motorcraft® SAE 0W-20 Premium Synthetic Blend Motor Oil:Engine oil - SAE 0W-20XO-0W20-QSP
362
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, Edition date: 201805, First-Printing
Capacities and Specifications