Page 3 of 323
Customer Assistance 264
Reporting safety defects (U.S. only) 270
Reporting safety defects (Canada only) 271
Cleaning 272
Maintenance and Specifications 279
Engine compartment 281
Engine oil 283
Battery 286
Engine coolant 288
Fuel information 294
Air filter(s) 309
Part numbers 310
Maintenance product specifications and capacities 311
Engine data 313
Accessories 316
Index 318
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Table of Contents
3
2009 MKS(mks)
Owners Guide (post-2002-fmt)
USA(fus)
Page 9 of 323
Vehicle Symbol Glossary
Power Windows
Front/Rear
Power Window Lockout
Child Safety Door
Lock/UnlockInterior Luggage
Compartment Release
Panic AlarmEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When HotBattery
Avoid Smoking, Flames,
or SparksBattery Acid
Explosive GasFan Warning
Power Steering FluidMaintain Correct Fluid
LevelMAX
MIN
Service Engine SoonEngine Air Filter
Passenger Compartment
Air FilterJack
Check Fuel CapLow Tire Pressure
Warning
2009 MKS(mks)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
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Page 126 of 323

To operate the heated seats:
Press once to activate the high heat
setting (three indicator lights).
Continue pressing to scroll through
the other settings; medium heat
(two indicator lights), low heat (one
indicator light) or off.
If the engine falls below 350 RPMs while the heated seats are on, the
feature will turn itself off and will need to be reactivated.
Cooled seats
The cooled seats will only function when the engine is running.
To operate the cooled seats:
Press once to activate the high cool
setting (three indicator lights).
Continue pressing to scroll through
the other settings; medium cool
(two indicator lights), low cool (one
indicator light) or off.
If the engine falls below 350 RPMs while the cooled seats are on, the
feature will turn itself off and will need to be reactivated.
Climate controlled seats air filter replacement
The climate controlled seat system includes air filters that must be
replaced periodically. Refer to thescheduled maintenance information
for more information.
•There is a filter located under
each front seat.
•The filter can be accessed from the rear of the seat. Move the front
seat to full up to ease access.
A/C
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Seating and Safety Restraints
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Page 127 of 323
To remove an air filter:
1. Remove key from ignition.
2. Push up on the outside rigid edge
of the filter until the tabs are
released, then rotate the air filter
toward the front of the vehicle.
3. Remove filter.
To install a filter:
1. First, position the filter in it’s
housing making sure that the far
forward end is all the way up in the
housing.
2. Push in on the center of the
outside edge of the filter and rotate
up into the housing until it clips into
position.
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Seating and Safety Restraints
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IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
1. Power steering fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery
5. Power distribution box
6. Air filter assembly
7. Automatic transmission fluid dipstick
8. Engine oil dipstick
9. Engine oil filler cap
10. Windshield washer fluid reservoir
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Maintenance and Specifications
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Page 294 of 323

When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Arrange for the vehicle to be taken to a service facility.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
5. Re-start the engine and take your vehicle to a service facility.
Driving the vehicle without repairing the engine problem
increases the chance of engine damage. Take your vehicle to a
service facility as soon as possible.
FUEL FILTER
Your vehicle is equipped with a lifetime fuel filter that is integrated with
the fuel tank. Regular maintenance or replacement is not needed.
WHAT YOU SHOULD KNOW ABOUT AUTOMOTIVE FUELS
Important safety precautions
WARNING:Do not overfill the fuel tank. The pressure in an
overfilled tank may cause leakage and lead to fuel spray and fire.
WARNING:The fuel system may be under pressure. If you hear
a hissing sound near the fuel filler door (Easy Fuel™ “no cap”
fuel system), do not refuel until the sound stops. Otherwise, fuel may
spray out, which could cause serious personal injury.
WARNING:Automotive fuels can cause serious injury or death
if misused or mishandled.
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Maintenance and Specifications
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If an overfill occurs, excess fluid
should be removed by an authorized
dealer.
An overfill condition of
transmission fluid may cause shift and/or engagement concerns
and/or possible damage.
Do not use supplemental transmission fluid additives, treatments or
cleaning agents. The use of these materials may affect transmission
operation and result in damage to internal transmission components.
AIR FILTER
Refer toscheduled maintenance informationfor the appropriate
intervals for changing the air filter element.
When changing the air filter element, use only the Motorcraft air filter
element listed. Refer toMotorcraft part numbersin this chapter.
WARNING:To reduce the risk of vehicle damage and/or
personal burn injuries do not start your engine with the air
cleaner removed and do not remove it while the engine is running.
Changing the air filter element
1. Release the clamps that secure
the air filter housing cover.
2. Carefully separate the two halves
of the air filter housing.
3. Remove the air filter element
from the air filter housing.
4. Wipe the air filter housing and
cover clean to remove any dirt or
debris and to ensure good sealing.
5. Install a new air filter element. Be
careful not to crimp the filter element edges between the air filter
housing and cover. This could cause filter damage and allow unfiltered
air to enter the engine if not properly seated.
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Maintenance and Specifications
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6. Replace the air filter housing
cover and secure the clamps. Be
sure that the air cleaner cover tabs
are engaged into the slots of the air
cleaner housing.
Note:Failure to use the correct air filter element may result in severe
engine damage. The customer warranty may be void for any damage to
the engine if the correct air filter element is not used.
MOTORCRAFT PART NUMBERS
Component 3.7L V6 Engine
Engine air filter element FA-1884
Battery BXT-65-650
Oil filter FL-400-SB12
PCV valve
1
Spark plugs2
1
The PCV valve is a critical emission component. It is one of the items
listed in thescheduled maintenance informationand is essential to
the life and performance of your vehicle and to its emissions system.
For PCV valve replacement, see your authorized dealer. Refer to
scheduled maintenance informationfor the appropriate intervals for
changing the PCV valve.
Replace the PCV valve with one that meets Ford material and design
specifications for your vehicle, such as a Motorcraft or equivalent
replacement part. The customer warranty may be void for any
damage to the emissions system if such a PCV valve is not used.
2For spark plug replacement, see your authorized dealer. Refer to
scheduled maintenance informationfor the appropriate intervals for
changing the spark plugs.
Replace the spark plugs with ones that meet Ford material and
design specifications for your vehicle, such as Motorcraft or
equivalent replacement parts. The customer warranty may be void
for any damage to the engine if such spark plugs are not used.
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Maintenance and Specifications
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