2007 Mercury Mariner Hybrid Owner's Manuals

IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
2.3L I4 engine
1. Engine coolant reservoir
2. Motor/Electronics (M/E) coolant reservoir
3. Engine oil filler cap
4. Brake fluid reservoir
5. Power distribution box
6. Low Voltage (underhood) battery
7. Engine air filter assembly
8. Engine oil dipstick
9. Windshield washer fluid reservoir
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
265

WINDSHIELD WASHER FLUID
Add fluid to fill the reservoir if the
level is low. In very cold weather, do
not fill the reservoir completely.
Only use a washer fluid that meets Ford specifications. Do not use any
special washer fluid such as windshield water repellent type fluid or bug
wash. They may cause squeaking, chatter noise, streaking and smearing.
Refer to theMaintenance product specifications and capacities
section in this chapter.
State or local regulations on volatile organic compounds may restrict the
use of methanol, a common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze agents should be used
only if they provide cold weather protection without damaging the
vehicle’s paint finish, wiper blades or washer system.
If you operate your vehicle in temperatures below 40° F (4.5°C),
use washer fluid with antifreeze protection. Failure to use
washer fluid with antifreeze protection in cold weather could result in
impaired windshield vision and increase the risk of injury or accident.
Note:Do not put washer fluid in the engine coolant reservoir. Washer
fluid placed in the cooling system may harm engine and cooling system
components.
Checking and adding washer fluid for the liftgate
Washer fluid for the liftgate is supplied by the same reservoir as the
windshield.
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
266

CHANGING THE WIPER BLADES
1. Pull the wiper blade and arm
away from the glass. Turn the blade
at a right angle to the arm. Push the
lock tab (A) to release the blade
from the arm loop and pull the
blade down toward the windshield
to remove it from the arm.
2. Attach the new blade to the arm
loop and pull it into place until a
click is heard.
Replace wiper blades at least once per year for optimum performance.
Poor wiper quality can be improved by cleaning the wiper blades and the
windshield, refer toWindows and wiper bladesin theCleaning
chapter.
To prolong the life of the wiper blades, it is highly recommended to
scrape off the ice on the windshield before turning on the wipers. The
layer of ice has many sharp edges and can damage the micro edge of the
wiper rubber element.
ENGINE OIL
Checking the engine oil
Refer to thescheduled maintenance informationfor the appropriate
intervals for checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait a few minutes for the oil to drain into the
oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
4. Open the hood. Protect yourself from engine heat.
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
267

5. Locate and carefully remove the engine oil level indicator (dipstick).
6. Wipe the indicator clean. Insert the indicator fully, then remove it
again.
•If the oil level is within the MIN and MAX marks or the lower and
upper holes, the oil level is acceptable.DO NOT ADD OIL.
•If the oil level is below the MIN mark or the lower hole, engineoil
must be addedto raise the level within the normal operating range.
•If required, add engine oil to the engine. Refer toAdding engine oil
in this chapter.
•Do not overfill the engine with oil. Oil levels above the MAX
mark or upper hole may cause engine damage.If the engine is
overfilled, some oil must be removed from the engine by an authorized
dealer.
7. Put the indicator back in and ensure it is fully seated.
Adding engine oil
1. Check the engine oil. For instructions, refer toChecking the engine
oilin this chapter.
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
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2. If the engine oil level is not within the normal range, add only certified
engine oil of the recommended viscosity. Remove the engine oil filler cap
and use a funnel to pour the engine oil into the opening.
3. Recheck the engine oil level. Make sure the oil level is not above the
FULL mark on the engine oil level indicator (dipstick).
4. Install the indicator and ensure it is fully seated.
5. Fully install the engine oil filler cap by turning the filler cap clockwise
1/4 of a turn until it is seated.
To avoid possible oil loss, DO NOT operate the vehicle with the
engine oil level indicator and/or the engine oil filler cap removed.
Engine oil and filter recommendations
Look for this certification
trademark.
Use SAE 5W-20 engine oil.
Only use oils “Certified For Gasoline Engines” by the American
Petroleum Institute (API). An oil with this trademark symbol conforms
to the current engine and emission system protection standards and fuel
economy requirements of the International Lubricant Standardization and
Approval Committee (ILSAC), comprised of U.S. and Japanese
automobile manufacturers.
To protect your engine’s warranty use Motorcraft SAE 5W-20 or an
equivalent SAE 5W-20 oil meeting Ford specification WSS-M2C930-A.
SAE 5W-20 oil provides optimum fuel economy and durability
performance meeting all requirements for your vehicle’s engine.
Do not use supplemental engine oil additives, cleaners or other engine
treatments. They are unnecessary and could lead to engine damage that
is not covered by Ford warranty.
Change your engine oil and filter according to the appropriate schedule
listed inscheduled maintenance information.
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
269

When changing the oil filter on the 2.3L engine you must also replace
the filter cap O-ring. The oil filter drain plug O-ring must also be
replaced whenever the oil filter drain plug is removed. Reuse of the
O-rings may cause engine oil leakage and may result in severe engine
damage. The customer warranty may be void for any damage to the
engine if the O-rings are not replaced.
Ford production and aftermarket (Motorcraft) oil filters are designed for
added engine protection and long life. If a replacement oil filter is used
that does not meet Ford material and design specifications, start-up
engine noises or knock may be experienced. It is recommended you use
the appropriate Motorcraft oil filter (or another brand meeting Ford
specifications) for your engine application.
LOW VOLTAGE (UNDERHOOD) BATTERY
Your vehicle is equipped with a
Motorcraft maintenance-free battery
which normally does not require
additional water during its life of
service.
If your battery has a cover/shield, make sure it is reinstalled
after the battery has been cleaned or replaced.
For longer, trouble-free operation, keep the top of the battery clean and
dry. Also, make certain the battery cables are always tightly fastened to
the battery terminals.
If you see any corrosion on the battery or terminals, remove the cables
from the terminals and clean with a wire brush. You can neutralize the
acid with a solution of baking soda and water.
Note: Electrical or electronic accessories or components added to
the vehicle by the dealer or the owner (e.g. spot lights, electric
winch, etc.) may adversely affect vehicle performance and
durability.
Batteries normally produce explosive gases which can cause
personal injury. Therefore, do not allow flames, sparks or lighted
substances to come near the battery. When working near the battery,
always shield your face and protect your eyes. Always provide proper
ventilation.
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
270

When lifting a plastic-cased battery, excessive pressure on the
end walls could cause acid to flow through the vent caps,
resulting in personal injury and/or damage to the vehicle or battery.
Lift the battery with a battery carrier or with your hands on opposite
corners.
Keep batteries out of reach of children. Batteries contain sulfuric
acid. Avoid contact with skin, eyes or clothing. Shield your eyes
when working near the battery to protect against possible splashing of
acid solution. In case of acid contact with skin or eyes, flush
immediately with water for a minimum of 15 minutes and get prompt
medical attention. If acid is swallowed, call a physician immediately.
Battery posts, terminals and related accessories contain lead and
lead compounds.Wash hands after handling.
If the battery is disconnected, the Regenerative Braking System will need
to relearn the initial brake pedal position. After reconnecting the battery,
slowly depress and release the brake pedal one time.
Because your vehicle’s engine is electronically controlled by a computer,
some control conditions are maintained by power from the battery. When
the battery is disconnected or a new battery is installed, the engine must
relearn its idle and fuel trim strategy for optimum driveability and
performance. To begin this process:
1. With the vehicle at a complete stop, set the parking brake.
2. Put the gearshift in P (Park), turn off all accessories and start the
engine.
3. Run the engine until it reaches normal operating temperature.
4. Allow the engine to idle for at least one minute.
5. Turn the A/C on and allow the engine to idle for at least one minute.
6. Drive the vehicle to complete the relearning process.
•The vehicle may need to be driven 10 miles (16 km) or more to
relearn the idle and fuel trim strategy.
•If you do not allow the engine to relearn its idle trim, the idle
quality of your vehicle may be adversely affected until the idle
trim is eventually relearned.
If the battery has been disconnected or a new battery has been installed,
the clock and the preset radio stations must be reset once the battery is
reconnected.
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
271

•Always dispose of automotive
batteries in a responsible manner.
Follow your local authorized
standards for disposal. Call your
local authorized recycling center
to find out more about recycling
automotive batteries.
Low and high voltage battery – storage
Your vehicle must be started and run for a minimum of 10 minutes once
a month in order to maintain the high voltage battery charge. This will
maintain the high voltage battery but it is not enough to maintain the
low voltage (underhood) battery and additional low voltage (underhood)
battery charging may be required after 60 days.
If your vehicle is to be stored for 30 days or longer, the low voltage
(underhood) battery negative terminal must be disconnected. Failure to
do this could damage your vehicle’s batteries.
ENGINE COOLANT AND MOTOR/ELECTRONICS COOLANT
Your vehicle is equipped with two separate coolant systems. One is for
engine cooling and the other is for various electric motors and other
components that are specific to the hybrid operating systems.
L
E
A
D
RETURN
RECYCLE
2007 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
272