maintenance Mercury Mariner 2008 Owner's Manuals

Maintenance and Specifications 252
Engine compartment 254
Engine oil 258
Battery 262
Engine coolant 264
Fuel information 270
Air filter(s) 283
Part numbers 285
Maintenance product specifications and capacities 286
Engine data 288
Accessories 291
Index 293
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Table of Contents
3
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)

BREAKING-IN YOUR VEHICLE
Your vehicle does not need an extensive break-in. Try not to drive
continuously at the same speed for the first 1,000 miles (1,600 km) of
new vehicle operation. Vary your speed frequently in order to give the
moving parts a chance to break in.
Drive your new vehicle at least 1,000 miles (1,600 km) before towing a
trailer. For more detailed information about towing a trailer, refer to
Trailer towingin theTires, Wheels and Loadingchapter.
Do not add friction modifier compounds or special break-in oils since
these additives may prevent piston ring seating. SeeEngine oilin the
Maintenance and Specificationschapter for more information on oil
usage.
SPECIAL NOTICES
New Vehicle Limited Warranty
For a detailed description of what is covered and what is not covered by
your vehicle’s New Vehicle Limited Warranty, refer to theWarranty
Guidethat is provided to you along with yourOwner’s Guide.
Special instructions
For your added safety, your vehicle is fitted with sophisticated electronic
controls.
Please read the sectionAirbag supplemental restraint system
(SRS)in theSeating and Safety Restraintschapter. Failure to
follow the specific warnings and instructions could result in personal
injury.
Front seat mounted rear-facing child or infant seats should
NEVERbe placed in front of an active passenger airbag.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
6

WARNING LIGHTS AND CHIMES
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause extensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle’s functions.
Many lights will illuminate when you start your vehicle to make sure the
bulbs work. If any light remains on after starting the vehicle, refer to the
respective system warning light for additional information.
Service engine soon:The
Service engine soonindicator light
illuminates when the ignition is first
turned to the ON position to check
the bulb and to indicate whether the vehicle is ready for
Inspection/Maintenance (I/M) testing. Normally, theService engine soon
light will stay on until the engine is cranked, then turn itself off if no
malfunctions are present. However, if after 15 seconds theService
engine soonlight blinks eight times, it means that the vehicle is not
ready for I/M testing. See theReadiness for Inspection/Maintenance
(I/M) testingin theMaintenance and Specificationschapter.
Solid illumination after the engine is started indicates the On Board
Diagnostics System (OBD-II) has detected a malfunction. Refer toOn
board diagnostics (OBD-II)in theMaintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately by your authorized dealer.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
12

Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Check fuel cap:Illuminates when
the fuel cap may not be properly
installed. Continued driving with
this light on may cause the Service
engine soon warning light to come
on, refer toFuel filler capin the
Maintenance and Specificationchapter.
Brake system warning light:
To confirm the brake system
warning light is functional, it will
momentarily illuminate when the
ignition is turned to the RUN
position when the engine is not running, or in a position between RUN
and START, or by applying the parking brake when the ignition is turned
to the RUN position. If the brake system warning light does not
illuminate at this time, seek service immediately from your authorized
dealer. Illumination after releasing the parking brake indicates low brake
fluid level or a brake system malfunction and the brake system should be
inspected immediately by your authorized dealer.
Driving a vehicle with the brake system warning light on is
dangerous. A significant decrease in braking performance may
occur. It will take you longer to stop the vehicle. Have the vehicle
checked by your authorized dealer. Driving extended distances with
the parking brake engaged can cause brake failure and the risk of
personal injury.
P!
BRAKE
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
13

Anti-lock brake system:
If the ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately by your
authorized dealer. Normal braking is still functional unless the brake
warning light also is illuminated.
Airbag readiness:If this light fails
to illuminate when the ignition is
turned to RUN, continues to flash or
remains on, have the system
serviced immediately by your authorized dealer. A chime will also sound
when a malfunction in the supplemental restraint system has been
detected.
Safety belt:Reminds you to fasten
your safety belt. A Belt-Minder

chime will also sound to remind you
to fasten your safety belt. Refer to
theSeating and Safety Restraints
chapter to activate/deactivate the Belt-Minder
chime feature.
Charging system:Illuminates when
the battery is not charging properly.
Engine oil pressure:
Illuminates when the oil pressure
falls below the normal range, refer
toEngine oilin theMaintenance
and Specificationschapter.
Traction Control™:Illuminates
when the Traction Control™ is
active. If the light remains on, have
the system serviced immediately,
refer to theDrivingchapter for
more information.
ABS
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
14

Odometer:Registers the total miles
(kilometers) of the vehicle.
Refer toMessage centerin the
Driver Controlschapter on how to
switch the display from Metric to
English.
Trip odometer:Registers the miles
(kilometers) of individual journeys.
To reset, press and release the
message center INFO button until
TRIP A mode appears in the display.
Press the control again to select the
TRIP B feature. Press and hold the RESET button to reset.
Tachometer:Indicates the engine
speed in revolutions per minute.
Driving with your tachometer
pointer continuously at the top of
the scale may damage the engine.
Fuel gauge:Indicates
approximately how much fuel is left
in the fuel tank (when the ignition
is in the ON position). The fuel
gauge may vary slightly when the
vehicle is in motion or on a grade.
The arrow near the fuel pump icon
indicates which side of the vehicle
the fuel filler door is located.
Refer toFilling the tankin theMaintenance and Specifications
chapter for more information.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
18

Warnings Status
Park brake engaged Warning returns after 10 minutes if
condition still exists
XXX miles (km) to empty fuel
level low
Liftgate/Glass ajar Warning returns after the ignition key
is turned from OFF to RUN.
Service brake system
Low brake fluid
Low tire pressure
Tire pressure monitor fault
Tire pressure sensor fault
XX% oil life change soon
Oil change required
DRIVER DOOR AJAR.Displayed when the driver door is not
completely closed.
PASSENGER DOOR AJAR.Displayed when the passenger door is not
completely closed.
REAR LEFT DOOR AJAR.Displayed when the rear left door is not
completely closed.
REAR RIGHT DOOR AJAR.Displayed when the rear right door is not
completely closed.
PARK BRAKE ENGAGED.Displayed when the manual park brake is
set, the engine is running and the vehicle is driven more than 3 mph
(5 km). If the warning stays on after the park brake is released, contact
your authorized dealer as soon as possible.
XXX MILES TO EMPTY FUEL LEVEL LOW.Displayed as an early
reminder of a low fuel condition.
LIFTGATE/GLASS AJAR.Displayed when the liftgate or liftgate glass
is not completely closed. Press RESET to reset display.
SERVICE BRAKE SYSTEM.Displayed when the braking system is not
operating properly. If the warning stays on or continues to come on,
contact your authorized dealer as soon as possible.
LOW BRAKE FLUID.Indicates the brake fluid level is low and the
brake system should be inspected immediately. Refer toBrake fluid
reservoirin theMaintenance and Specificationschapter.
LOW TIRE PRESSURE.Displayed when one or more tires on your
vehicle have low tire pressure. Refer toInflating your tiresin theTires,
Wheels and Loadingchapter.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
72

Front safety belt usage sensors
The front safety belt usage sensors detect whether or not the driver and
front outboard passenger safety belts are fastened. This information
allows your Personal Safety System™ to tailor the airbag deployment
and safety belt pretensioner activation depending upon safety belt usage.
Refer toSafety restraintssection in this chapter.
Front safety belt pretensioners
The safety belt pretensioners at the front outboard seating positions are
designed to tighten the safety belts firmly against the occupant’s body
during frontal collisions, and in side collisions and rollovers. This helps
increase the effectiveness of the safety belts. In frontal collisions, the
safety belt pretensioners can be activated alone or, if the collision is of
sufficient severity, together with the front airbags.
Front safety belt energy management retractors
The front outboard safety belt energy management retractors allow
webbing to be pulled out of the retractor in a gradual and controlled
manner in response to the occupant’s forward momentum. This helps
reduce the risk of force-related injuries to the occupant’s chest by
limiting the load on the occupant. Refer toEnergy management feature
section in this chapter.
Determining if the Personal Safety System™ is operational
The Personal Safety System™ uses a warning light in the instrument
cluster or a back-up tone to indicate the condition of the system. Refer
to theWarning lightsection in theInstrument Clusterchapter.
Routine maintenance of the Personal Safety System™ is not required.
The Restraints control module (RCM) monitors its own internal circuits
and the circuits for the airbag supplemental restraints, crash sensor(s),
safety belt pretensioners, front safety belt buckle sensors, driver seat
position sensor, and front passenger sensing system. In addition, the
RCM also monitors the restraints warning light in the instrument cluster.
A difficulty with the system is indicated by one or more of the following.
•The warning light will either flash or stay lit.
•The warning light will not illuminate immediately after ignition is
turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and warning light are repaired.
If any of these things happen, even intermittently, have the Personal
Safety System™ serviced at an authorized dealer immediately. Unless
serviced, the system may not function properly in the event of a
collision.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
107

Safety belt pretensioner
Your vehicle is equipped with safety belt pretensioners at the driver and
front passenger seating positions.
The safety belt pretensioners activate during frontal collisions, and in
side collisions and rollovers. A safety belt pretensioner is a device which
tightens the webbing of the lap and shoulder belts in such a way that
they fit more snugly against the body.
The driver and front passenger safety belt system (including
retractors, buckles and height adjusters) must be replaced if the
vehicle is involved in a collision that results in deployment of front
airbags, seat-mounted side airbags and Safety Canopy™, and safety
belt pretensioners.
Failure to replace the safety belt assembly under the above
conditions could result in severe personal injuries in the event of
a collision.
Safety belt extension assembly
If the safety belt is too short when fully extended, a 9 inch (23 cm) or
12 inch (31 cm) safety belt extension assembly can be added (part
numbers 611C22–A and 611C22–B respectively). These assemblies can
be obtained from an authorized dealer.
Use only extensions manufactured by the same supplier as the safety
belt. Manufacturer identification is located at the end of the webbing on
the label. Also, use the safety belt extension only if the safety belt is too
short for you when fully extended.
Do not use extensions to change the fit of the shoulder belt
across the torso.
Safety belt maintenance
Inspect the safety belt systems periodically to make sure they work
properly and are not damaged. Inspect the safety belts to make sure
there are no nicks, tears or cuts. Replace if necessary. All safety belt
assemblies, including retractors, buckles, front safety belt buckle
assemblies, buckle support assemblies (slide bar-if equipped), shoulder
belt height adjusters (if equipped), shoulder belt guide on seatback (if
equipped), child safety seat LATCH and tether anchors, and attaching
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
112

Any alteration/modification to the front passenger seat may
affect the performance of the front passenger sensing system.
Determining if the system is operational
The SRS uses a readiness light in the instrument cluster or a tone to
indicate the status of the system. Refer toAirbag readinesssection in
theInstrument Clusterchapter. Routine maintenance of the airbag is
not required.
A difficulty with the system is indicated by one or more of the following:
•The readiness light will either
flash or stay lit.
•The readiness light will not
illuminate immediately after
ignition is turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and/or light are repaired.
If any of these things happen, even intermittently, have the SRS serviced
at an authorized dealer immediately. Unless serviced, the system may not
function properly in the event of a collision.
Seat-mounted side airbag system
Do not place objects or mount equipment on or near the airbag
cover on the side of the seatbacks of the front seats or in front
seat areas that may come into contact with a deploying airbag. Failure
to follow these instructions may increase the risk of personal injury in
the event of a collision.
Do not use accessory seat covers. The use of accessory seat
covers may prevent the deployment of the side airbags and
increase the risk of injury in an accident.
Do not lean your head on the door. The side airbag could injure
you as it deploys from the side of the seatback.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
127