When the engine is cold, check the
level of the engine coolant in the
reservoir.
•The engine coolant should be at the FULL COLD level or within the
COLD FILL RANGE as listed on the engine coolant reservoir
(depending upon application).
•Refer toscheduled maintenance informationfor service interval
schedules.
If the engine coolant has not been checked at the recommended interval,
the engine coolant reservoir may become low or empty. If the reservoir is
low or empty, add engine coolant to the reservoir. Refer toAdding
engine coolantin this chapter.
Note:Automotive fluids are not interchangeable; do not use engine
coolant/antifreeze or windshield washer fluid outside of its specified
function and vehicle location.
Adding engine coolant
When adding coolant, make sure it is a 50/50 mixture of engine coolant
and distilled water. Add the mixture to the coolant reservoir,when the
engine is cool,until the appropriate fill level is obtained. If coolant is
filled to the COLD FILL RANGE or FULL COLD level when the engine is
not cool, the system will remain underfilled.
WARNING:Do not add engine coolant when the engine is hot.
Steam and scalding liquids released from a hot cooling system
can burn you badly. Also, you can be burned if you spill coolant on hot
engine parts.
WARNING:Do not put engine coolant in the windshield washer
fluid container. If sprayed on the windshield, engine coolant
could make it difficult to see through the windshield.
Maintenance and Specifications
299
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
•DO NOT MIXdifferent colors or types of coolant in your vehicle.
Make sure the correct coolant is used.DO NOT MIXrecycled coolant
and new (unused) coolant together in the vehicle. Mixing of engine
coolants may harm your engine’s cooling system. The use of an
improper coolant may harm engine and cooling system components
and may void the warranty. Refer toMaintenance product
specifications and capacitiesin this chapter.
Note:Do not use stop leak pellets or cooling system sealants/additives
as they can cause damage to the engine cooling and/or heating systems.
This damage would not be covered under your vehicle’s warranty.
•A large amount of water without engine coolant may be added, in case
of emergency, to reach a vehicle service location. In this instance, the
cooling system must be drained and refilled with a 50/50 mixture of
engine coolant and distilled water as soon as possible. Water alone
(without engine coolant) can cause engine damage from corrosion,
overheating or freezing.
•Do not use alcohol, methanol, brine or any engine coolants
mixed with alcohol or methanol antifreeze (coolant).Alcohol
and other liquids can cause engine damage from overheating or
freezing.
•Do not add extra inhibitors or additives to the coolant.These
can be harmful and compromise the corrosion protection of the engine
coolant.
For vehicles with overflow coolant systems with a non-pressurized cap
on the coolant recovery system, add coolant to the coolant recovery
reservoir when the engine is cool. Add the proper mixture of coolant and
water to the FULL COLD level. For all other vehicles which have a
coolant degas system with a pressurized cap, or if it is necessary to
remove the coolant pressure relief cap on the radiator of a vehicle with
an overflow system, follow these steps to add engine coolant.
WARNING:To reduce the risk of personal injury, make sure the
engine is cool before unscrewing the coolant pressure relief cap.
The cooling system is under pressure; steam and hot liquid can come
out forcefully when the cap is loosened slightly.
Add the proper mixture of coolant and water to the cooling system by
following these steps:
1. Before you begin, turn the engine off and let it cool.
2. When the engine is cool, wrap a thick cloth around the coolant
pressure relief cap on the coolant reservoir (a translucent plastic bottle).
Slowly turn cap counterclockwise (left) until pressure begins to release.
Maintenance and Specifications
300
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
3. Step back while the pressure releases.
4. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.
5. Fill the coolant reservoir slowly with the proper coolant mixture, to
within the COLD FILL RANGE or the FULL COLD level on the reservoir.
If you removed the radiator cap in an overflow system, fill the radiator
until the coolant is visible and radiator is almost full.
6. Replace the cap. Turn until tightly installed. Cap must be tightly
installed to prevent coolant loss.
After any coolant has been added, check the coolant concentration (refer
toChecking engine coolant). If the concentration is not 50/50
(protection to –34°F/–36°C), drain some coolant and adjust the
concentration. It may take several drains and additions to obtain a 50/50
coolant concentration.
Whenever coolant has been added, the coolant level in the coolant
reservoir should be checked the next few times you drive the vehicle. If
necessary, add enough 50/50 concentration of engine coolant and
distilled water to bring the liquid level to the proper level.
If you have to add more than 1.0 quart (1.0 liter) of engine coolant per
month, have your authorized dealer check the engine cooling system.
Your cooling system may have a leak. Operating an engine with a low
level of coolant can result in engine overheating and possible engine
damage.
Recycled engine coolant
Ford Motor Company does NOT recommend the use of recycled engine
coolant since a Ford-approved recycling process is not yet available.
Used engine coolant should be disposed of in an appropriate
manner. Follow your community’s regulations and standards for recycling
and disposing of automotive fluids.
Coolant refill capacity
To find out how much fluid your vehicle’s cooling system can hold, refer
toMaintenance product specifications and capacitiesin this chapter.
Fill your engine coolant reservoir as outlined inAdding engine coolant
in this section.
Maintenance and Specifications
301
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Severe climates
If you drive in extremely cold climates (less than –34°F [–36°C]):
•It may be necessary to increase the coolant concentration
above 50%.
•NEVER increase the coolant concentration above 60%.
Increased engine coolant concentrations above 60% will
decrease the overheat protection characteristics of the engine
coolant and may cause engine damage.
•Refer to the chart on the coolant container to ensure the
coolant concentration in your vehicle will provide adequate
freeze protection at the temperatures in which you drive in the
winter months.
If you drive in extremely hot climates:
•It is still necessary to maintain the coolant concentration
above 40%.
•NEVER decrease the coolant concentration below 40%.
Decreased engine coolant concentrations below 40% will
decrease the corrosion/freeze protection characteristics of the
engine coolant and may cause engine damage.
•Refer to the chart on the coolant container to ensure the
coolant concentration in your vehicle will provide adequate
protection at the temperatures in which you drive.
Vehicles driven year-round in non-extreme climates should use a 50/50
mixture of engine coolant and distilled water for optimum cooling system
and engine protection.
What you should know about fail-safe cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The “fail-safe” distance depends on ambient temperatures, vehicle load
and terrain.
How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature gauge will move to the red (hot)
area.
•The service engine soon
indicator light will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
Maintenance and Specifications
302
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
When this occurs the vehicle will still operate. However:
•The engine power will be limited.
•The air conditioning system will be disabled.
Continued operation will increase the engine temperature and the engine
will completely shut down, causing steering and braking effort to
increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to an authorized dealer as soon as possible to minimize
engine damage.
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 an authorized dealer.
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:Fail-safe mode is for use during emergencies only.
Operate the vehicle in fail-safe mode only as long as necessary to
bring the vehicle to rest in a safe location and seek immediate repairs.
When in fail-safe mode, the vehicle will have limited power, will not be
able to maintain high-speed operation, and may completely shut down
without warning, potentially losing engine power, power steering assist,
and power brake assist, which may increase the possibility of a crash
resulting in serious injury.
WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
5. Re-start the engine and take your vehicle to an authorized dealer.
Driving the vehicle without repairing the engine problem
increases the chance of engine damage. Take your vehicle to an
authorized dealer 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.
Maintenance and Specifications
303
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
MAINTENANCE PRODUCT SPECIFICATIONS AND CAPACITIES
Item CapacityFord Part Name or E
quivalentFord Part Number /
Ford Specification
Brake fluidBetween MIN and
MAX on reservoirMotorcraftHigh
Performance DOT 3
Motor Vehicle Brake
FluidPM-1-C /
WSS-M6C62-A or
WSS-M6C65-A1
Body hinges, latches,
door striker plates and
rollers, seat tracks, fuel
filler door hinge and
spring, primary and
auxiliary hood latches— Multi-Purpose GreaseXG-4 or XL-5 /
ESB-M1C93-B
Engine coolant
(2.5L engine)7.4 quarts (7.0L)MotorcraftPremium
Gold Engine Coolant
with bittering agent
(yellow-colored)
1
VC-7-B /
WSS-M97B51-A1
Engine coolant
(3.0L engine)9.5 quarts (9.0L)
Cooling system stop
leak pellets—MotorcraftCooling
System Stop Leak PelletsVC-6 /
WSS-M99B37-B6
Maintenance and Specifications
323
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
Item CapacityFord Part Name or E
quivalentFord Part Number /
Ford Specification
Fuel tank17.5 gallons
(66.2 L)——
1Add the coolant type originally equipped in your vehicle.2Use of synthetic or synthetic blend motor oil is not mandatory. Engine oil need only meet the
requirements of Ford specification WSS-M2C930-A and the API Certification mark.3Indicates only approximate dry-fill capacity. The amount of transmission fluid and fluid level
should be set by the indication on the dipstick’s normal operating range.4Automatic transmissions that require MERCONLV should only use MERCONLV fluid. Refer to
scheduled maintenance informationto determine the correct service interval. Use of any fluid
other than the recommended fluid may cause transmission damage.54X4 vehicles exposed for prolonged periods to temperatures less than -40°F (-40°C) should
change out the rear axle fluid to MotorcraftSAE 75W-140 Synthetic Rear Axle Lubricant, Ford
part number XY-75W140-QL meeting Ford specification WSL-M2C192-A.6Fill to 1/4 inch to 9/16 inch (6 mm to 14 mm) below bottom of fill hole.7The power transfer unit is lubricated for life with synthetic lube. Lubricant levels are not to be
checked or changed unless a leak is suspected or repair required. Replace power transfer unit
lubricant with specified synthetic lubricant anytime the unit is submerged in water. Never engage
the 4X4 feature while on dry pavement.
Maintenance and Specifications
325
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)
A
Accessory delay ..........................72
Active Park Assist .....................230
AdvanceTrac ..............................216
Air cleaner filter ...............321–322
Air conditioning
automatic temperature
control system ..........................48
manual heating and air
conditioning system .................45
Airbag supplemental restraint
system ........................137, 146, 149
and child safety seats ............139
description ..............137, 146, 149
disposal ....................................152
driver airbag ............139, 147, 150
indicator light .........146, 148, 151
operation .................139, 147, 150
passenger airbag .....139, 147, 150
side airbag ...............................146
All Wheel Drive (AWD),
driving off road .........................236
Ambient mood/lighting ...............58
Ambulance packages ....................7
AM/FM .........................................27
Antifreeze (see Engine
coolant) .....................................298
Anti-lock brake system
(see Brakes) ......................213–214
Anti-theft system ......................107
Audio system (see Radio) .........27
Automatic transmission
driving an automatic
overdrive .................................224
fluid, refill capacities ..............323
fluid, specification ..................323Auxiliary input jack (Line in) ....35
Auxiliary power point .................70
Axle
lubricant specifications ..........323
refill capacities ........................323
B
Battery .......................................296
acid, treating emergencies .....296
jumping a disabled battery ....265
maintenance-free ....................296
replacement, specifications ...322
servicing ..................................296
Belt-Minder.............................132
Blind Spot Spotter Mirror ........235
Booster seats .............................166
Brakes ........................................213
anti-lock ...........................213–214
anti-lock brake system (ABS)
warning light ...........................214
fluid, checking and adding ....317
fluid, refill capacities ..............323
fluid, specifications .................323
lubricant specifications ..........323
parking ....................................214
shift interlock ..........................222
Bulbs ............................................58
C
Capacities for refilling fluids ....323
Car2UHome Automation
System .........................................80
Cargo area shade ........................87
Cargo management system ........88
CD ................................................27
Cell phone use ..............................8
Index
334
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)