Page 3 of 320
Maintenance and Specifications 250
Engine compartment 253
Engine oil 256
Battery 259
Engine Coolant and Motor/Electronics Coolant 261
Fuel information 267
Air filter(s) 281
Part numbers 284
Maintenance product specifications and capacities 285
Engine data 287
Accessories 290
Scheduled Maintenance Guide 292
Normal scheduled maintenance and log 297
Special operating conditions and log 303
Index 309
All rights reserved. Reproduction by any means, electronic or mechanical
including photocopying, recording or by any information storage and retrieval
system or translation in whole or part is not permitted without written
authorization from Ford Motor Company. Ford may change the contents without
notice and without incurring obligation.
Copyright © 2006 Ford Motor Company
Table of Contents
3
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Page 17 of 320
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
Emission SystemEngine Air Filter
Passenger Compartment
Air FilterJack
Check Fuel CapLow Tire Pressure
Warning
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
17
Page 253 of 320
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
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
253
Page 281 of 320

7. The fluid level should be within
1/4 inch (6 mm) of the plug threads.
8. Replace the check plug.
Adjusting eCVT fluid levels
Before adding any fluid, make sure the correct type is used. The type of
fluid used is indicated in theMaintenance product specifications and
capacitiessection in this chapter.
Use of a non-approved fluid may cause internal transaxle
component damage.
If the fluid level is low, add fluid through the check port until the level is
correct and fluid begins to run out of the transmission. If an overfill
occurs, excess fluid should be removed by allowing the fluid to run out
of the check port.
A serious overfill condition of transmission fluid may cause
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.
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.
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
281
Page 282 of 320

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.
6. Replace the air filter housing cover and secure the clamps.
Note:Failure to use the correct air filter element may result in severe
engine damage. The customer warranty may be voided for any damage to
the engine if the correct air filter element is not used.
HIGH VOLTAGE BATTERY COOLING FILTER (REAR A/C)
MAINTENANCE
The high voltage battery has a dedicated A/C cooling system which
includes an air filter.
Refer to thescheduled maintenance informationfor the appropriate
intervals for air filter.
When changing the air filter element, use only the Motorcraft air filter
element listed. Refer toMotorcraft part numbersin this chapter.
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
282
Page 283 of 320
Changing the high voltage battery air filter element
1. Remove access panel located in
the rear cargo area on the driver’s
side trim panel to expose the filter
cover.
2. Push the tabs (located on each
side of filter cover) while pulling
gently to remove filter cover.
3. Install new filter and filter cover (note arrows indicating top side).
4. Re-install the access panel into the trim panel.
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
283
Page 284 of 320

MOTORCRAFT PART NUMBERS
Component 2.3L I4 engine
Oil filter FL-2017-B1
PCV valve2
Spark plugs3
Engine air filter element FA-17724
Rear A/C (high voltage battery
cooling) air filter elementFP-51
Cabin air filter FP-66
Fuel filter FG-872
Low voltage (underhood) battery BXT-96R
1When changing oil filter 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.
2The PCV valve is a critical emission component. It is one of the items
listed inscheduled maintenance informationchapter and 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 informationchapter for 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.
3For spark plug replacement, see your authorized dealer. Refer to
scheduled maintenance informationchapter for 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.
4Failure 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.
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
284
Page 297 of 320

Multi-point Inspection
In order to keep your vehicle running right, it is important that you have
the systems on your vehicle checked regularly. This can help identify any
potential issue before there are any problems. Ford Motor Company
suggests the following multi-point inspection to be performed at every
scheduled maintenance as the way to ensure your vehicle keeps running
right.
NORMAL SCHEDULED MAINTENANCE AND LOG
The following section contains the “Normal Schedule”. This schedule is
presented at specific mileage (kilometer) intervals with exceptions
noted.
ADDITIONAL INFORMATION AVAILABLE ON THE WEB
To learn more about the importance of routine and dealer-performed
maintenance on your vehicle, please visit the Ford Customer Service Web
site. You’ll also find important warranty information, customer assistance,
technical expertise, frequently asked questions and much more. The Web
site location is: www.genuineservice.com.
Then go to the vehicles and services pick at the Web site.
Multi-point inspection - Recommended at every visit
❑Check and top up fluid levels: brake, engine coolant recovery reservoir, motor/electronics reservoir and window washer.❑Inspect tires for wear and correct air pressure.
❑Check exhaust system for leaks, damage, loose parts and foreign materials.
❑Check low voltage (underhood) battery performance.
❑Check operation of horn, exterior lamps, turn signals and hazard warning lights.
❑Check radiator, coolers and heater and air conditioning hoses.
❑Inspect windshield washer spray and wiper operation.
❑Check windshield for cracks, chips and pitting.
❑Inspect for oil and fluid leaks.
❑Inspect engine air cleaner filter and elements.
❑Inspect half-shaft dust boots.
❑Check shocks, struts and other suspension components for leaks and damage.
2008 Mariner Hybrid(mhv)
Owners Guide (post-2002-fmt)
USA(fus)
Scheduled Maintenance Guide
297