
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
9 20A** Wipers
10 30A** ABS Valves
11 30A** Passenger heated/cooled seat
12 30A** Driver heated/cooled seat
13 10A* SYNC
14 15A* Ignition switch
15 10A* Memory module logic
16 15A* Transmission
17 10A* Alternator sense
18 — Not used
19 40A** Logic feed to SJB (solid state
devices)
20 20A** THXII Amplifier #1
21 20A** THXII Amplifier #2
22 20A** Console power point
23 10A* PCM KAM and canister vent
solenoid
24 15A* Fog lamps
25 10A* A/C Compressor clutch
26 15A* LH HID Low beam
27 15A* RH HID Low beam
28 80A*** Engine cooling fan
29 — Not used
30 30A** Fuel pump/injectors relay
31 30A** Passenger power seat
32 30A** Driver power seat
33 20A** Moon roof
34 30A** Driver Smart power window
35 30A** Passenger Smart power window
36 1A* PCM diode
2009 MKZ(378)
Owners Guide
USA(fus)
Roadside Emergencies
217

Do not add aftermarket fuel additive products to your fuel tank. It
should not be necessary to add any aftermarket products to your fuel
tank if you continue to use high quality fuel of the recommended octane
rating. These products have not been approved for your engine and
could cause damage to the fuel system. Repairs to correct the effects of
using an aftermarket product in your fuel may not be covered by your
warranty.
Many of the world’s automakers approved the World-Wide Fuel Charter
that recommends gasoline specifications to provide improved
performance and emission control system protection for your vehicle.
Gasolines that meet the World-Wide Fuel Charter should be used when
available. Ask your fuel supplier about gasolines that meet the
World-Wide Fuel Charter.
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in theChoosing the right
fuelsection.
Running out of fuel
Avoid running out of fuel because this situation may have an adverse
effect on powertrain components.
If you have run out of fuel:
•You may need to cycle the ignition from off to on several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time will take a few seconds longer
than normal.
•Normally, adding 1 gallon (3.8L) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
1 gallon (3.8L) may be required.
•TheService engine soon
indicator may come on. For more
information on theService engine soon
indicator, refer to
Warning lights and chimesin theInstrument Clusterchapter.
2009 MKZ(378)
Owners Guide
USA(fus)
Maintenance and Specifications
268

ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,000 miles
(1,600 km) of driving (engine break-in period). You will get a more
accurate measurement after 2,000 miles–3,000 miles (3,000 km–5,000
km).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theMaintenance
product specifications and capacitiessection of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
•Use the same filling rate setting (low — medium — high) each time
the tank is filled.
•Allow no more than two automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
2009 MKZ(378)
Owners Guide
USA(fus)
Maintenance and Specifications
269

EPA fuel economy estimates
Every new vehicle should have a window sticker containing EPA fuel
economy estimates. Contact your authorized dealer if the window sticker
is not supplied with your vehicle. The EPA fuel economy estimates
should be your guide for the fuel economy comparisons with other
vehicles. Your fuel economy may vary depending upon the method of
operation and conditions.
EMISSION CONTROL SYSTEM
Your vehicle is equipped with various emission control components and a
catalytic converter which will enable your vehicle to comply with
applicable exhaust emission standards. To make sure that the catalytic
converter and other emission control components continue to work
properly:
•Use only the specified fuel listed.
•Avoid running out of fuel.
•Do not turn off the ignition while your vehicle is moving, especially at
high speeds.
•Have the items listed inscheduled maintenance information
performed according to the specified schedule.
The scheduled maintenance items listed inscheduled maintenance
informationare essential to the life and performance of your vehicle
and to its emissions system.
If other than Ford, Motorcraft or Ford-authorized parts are used for
maintenance replacements or for service of components affecting
emission control, such non-Ford parts should be equivalent to genuine
Ford Motor Company parts in performance and durability.
WARNING:Do not park, idle, or drive your vehicle in dry grass
or other dry ground cover. The emission system heats up the
engine compartment and exhaust system, which can start a fire.
Illumination of theService engine soon
indicator, charging system
warning light or the temperature warning light, fluid leaks, strange odors,
smoke or loss of engine power could indicate that the emission control
system is not working properly.
An improperly operating or damaged exhaust system may allow exhaust
to enter the vehicle. Have a damaged or improperly operating exhaust
system inspected and repaired immediately.
2009 MKZ(378)
Owners Guide
USA(fus)
Maintenance and Specifications
272

If theService engine soonindicator remains on, have your vehicle
serviced at the first available opportunity. Although some malfunctions
detected by the OBD-II may not have symptoms that are apparent,
continued driving with theService engine soon
indicator on can
result in increased emissions, lower fuel economy, reduced engine and
transmission smoothness, and lead to more costly repairs.
Readiness for Inspection/Maintenance (I/M) testing
Some state/provincial and local governments may have
Inspection/Maintenance (I/M) programs to inspect the emission control
equipment on your vehicle. Failure to pass this inspection could prevent
you from getting a vehicle registration. Your vehicle may not pass the I/M
test if theService engine soon
indicator is on or not working
properly (bulb is burned out), or if the OBD-II system has determined
that some of the emission control systems have not been properly
checked. In this case, the vehicle is considered not ready for I/M testing.
If theService engine soon
indicator is on or the bulb does not
work, the vehicle may need to be serviced. Refer to the On board
diagnostics (OBD-II) description in this chapter.
If the vehicle’s engine or transmission has just been serviced, or the
battery has recently run down or been replaced, the OBD-II system may
indicate that the vehicle is not ready for I/M testing. To determine if the
vehicle is ready for I/M testing, turn the ignition key to the on position
for 15 seconds without cranking the engine. If theService engine
soon
indicator blinks eight times, it means that the vehicle is not
ready for I/M testing; if theService engine soon
indicator stays on
solid, it means that the vehicle is ready for I/M testing.
The OBD-II system is designed to check the emission control system
during normal driving. A complete check may take several days. If the
vehicle is not ready for I/M testing, the following driving cycle consisting
of mixed city and highway driving may be performed:
15 minutes of steady driving on an expressway/highway followed by
20 minutes of stop-and-go driving with at least four 30-second idle
periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete. If
the vehicle is still not ready for I/M testing, the above driving cycle will
have to be repeated.
2009 MKZ(378)
Owners Guide
USA(fus)
Maintenance and Specifications
274

ENGINE DATA
Engine3.5L-DOHC V6 engine
Displacement 3.5L
Required fuel 87 octane
Firing order 1–4–2–5–3–6
Spark plug gap 0.052–0.056 inch (1.32–1.42 mm)
Ignition system Coil on plug
Compression ratio 10.3:1
Engine drivebelt routing
1. Short drivebelt is on first pulley groove closest to engine.
2. Long drivebelt is on second pulley groove farthest from engine.
2009 MKZ (378)
Owners Guide
USA (fus)
Maintenance and Specifications
282

Fluid capacities .........................280
Foglamps .....................................38
Four-Wheel Drive vehicles
driving off road .......................203
Fuel ............................................264
calculating fuel
economy ............................72, 269
cap ...........................................266
capacity ...................................280
choosing the right fuel ...........267
comparisons with EPA fuel
economy estimates .................272
detergent in fuel .....................268
filling your vehicle with
fuel ...........................264, 266, 269
filter, specifications ........263, 279
fuel pump shut-off switch .....212
improving fuel economy ........269
octane rating ...................267, 282
quality ......................................267
running out of fuel .................268
safety information relating to
automotive fuels .....................264
Fuel pump shut-off switch .......212
Fuses ..................................212–213
G
Gas cap (see Fuel cap) ............266
Gas mileage
(see Fuel economy) .................269
Gauges .........................................14
H
Hazard flashers .........................211
Headlamps ...................................37
aiming ........................................40
autolamp system .......................37
bulb specifications ....................42daytime running lights .............38
flash to pass ..............................39
high beam .................................39
replacing bulbs .........................44
turning on and off ....................37
Heating
heating and air conditioning
system .................................31, 33
Homelink wireless control
system ..........................................67
Hood ..........................................249
I
Ignition ...............................185, 282
Illuminated visor mirror .............53
Infant seats
(see Safety seats) .....................145
Inspection/maintenance (I/M)
testing ........................................274
Instrument panel
cleaning ...................................245
cluster ........................................10
lighting up panel and
interior .......................................39
J
Jack ............................................218
positioning ...............................218
storage .....................................218
Jump-starting your vehicle ......225
K
Keyless entry system .................95
autolock .....................................83
keypad .......................................95
locking and unlocking doors ....96
programming entry code .........95
2009 MKZ(378)
Owners Guide
USA(fus)
Index
289

Keys .......................................80, 98
positions of the ignition .........185
L
Lamps
autolamp system .......................37
bulb replacement
specifications chart ..................42
daytime running light ...............38
fog lamps ...................................38
headlamps .................................37
headlamps, flash to pass ..........39
instrument panel, dimming .....39
interior lamps ...........................41
replacing bulbs .........................44
LATCH anchors .........................149
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........191
Load limits .................................178
Locks
autolock .....................................83
childproof ..................................86
doors ..........................................82
Lubricant specifications ...........280
Lug nuts ....................................224
Lumbar support, seats .............107
M
Message center .....................70–71
english/metric button ...............76
system check button ................75
warning messages .....................77
Mirrors ...................................58–59
automatic dimming rearview
mirror ........................................58
heated ........................................60
programmable memory ............91
side view mirrors (power) .......59Moon roof ..............................65, 90
Motorcraft parts ........247, 263, 279
N
Navigation system .......................30
O
Octane rating ............................267
Oil (see Engine oil) ..................252
P
Parking brake ............................191
Parts (see Motorcraft parts) ....279
Passenger Occupant
Classification Sensor .................113
Power distribution box
(see Fuses) ...............................215
Power door locks ........................82
Power mirrors .............................59
Power point .................................55
Power steering ..........................197
fluid, checking and adding ....275
fluid, refill capacity ................280
fluid, specifications .................280
Power Windows ...........................56
Power windows
opening using remote entry
system .......................................90
R
Radio ............................................16
Recommendations for
attaching safety restraints for
children ......................................143
2009 MKZ(378)
Owners Guide
USA(fus)
Index
290