2009 Mercury Mariner Hybrid coolant

Maintenance and Specifications 270
Engine compartment 272
Engine oil 275
Battery 278
Engine Coolant and Motor/Electronics Coolant 280
Fuel information 286
Air filter(s) 301
Part numbers 303
Maintenance product specifications and capacities 304
Engine data 307
Accessories 310
Scheduled Maintenance Guide 312
Normal scheduled maintenance and log 317
Special operating conditions and log 322
Index 328
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Table of Contents
3
2009 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)

Question Answer
Why does my engine stay ON
when it’s extremely cold outside?In order to ensure that the climate
control system can begin heating
the cabin and/or defrosting the
windshield as soon as a driver
requests it, the engine coolant
temperature has to be kept
sufficiently hot. Keeping the
engine on is required to maintain
the correct minimum temperature.
Why does my engine rev up so
high sometimes when I accelerate?Your vehicle’s engine and
transmission are designed to
deliver the power you need at the
most efficient engine speed. This
may be higher than expected
during heavy accelerations, and
may fluctuate during steady state
driving. These are characteristics
of the Atkinson engine cycle and
the eCVT transaxle technology
that help maximize your hybrid’s
fuel economy.
What does it mean when my
power assist gauge moves to the
right? To the left?Electricity is coming out of the
battery when the gauge moves to
the right. Electricity is going into
the battery when the gauge moves
to the left.
What is the fan noise and slight
tapping sound I hear from the rear
of my hybrid?The fan noise comes from two fans
located inside the high voltage
battery. These fans turn on when
the battery requires cooling air.
The fan speed, and associated
noise level, will change according
to the amount of cooling required
to maintain good performance.
2009 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)
Introduction
11

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 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)
Introduction
17

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-Minderchime feature.
Master vehicle electrical hazard
warning lamp:Indicates Hybrid
component fault/failure that will
cause the vehicle to shutdown or
fail to start.
Note: If the vehicle is still running, the vehicle may soon
shutdown without further warning and should be stopped safely.
If this lamp is lit, stop the vehicle, shift to P (Park), turn the key to the
Off position, and attempt to restart the vehicle. If the fault remains, the
vehicle may require refueling, jump starting, resetting of the shut-off
switches, or service. For information regardingLow voltage
[underhood] battery onlyandFuel pump/High voltage shut-off
switchesplease refer to theRoadside Emergencieschapter.
Ready indicator light:Illuminates
once the vehicle has successfully
started. Indicates the vehicle is
ready to drive even when you don’t
hear the engine running.
Charging system:Illuminates when
the 12V charging system is not
working properly.
Engine oil pressure:Illuminates
when the oil pressure falls below the
normal range, refer toEngine oilin
theMaintenance and
Specificationschapter.
Engine or motor electronic
coolant temperature:Illuminates
when the coolant temperature
exceeds the threshold. When the light is flashing or remains on, stop the
vehicle as soon as possible, switch off the engine and let cool. Refer to
Engine coolant and motor/electronics coolantin theMaintenance
and Specificationschapter.
2009 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)
Instrument Cluster
20

WARNING:Never remove the coolant reservoir cap while the
engine is running or hot.
AdvanceTrac/Traction
Control™:Illuminates when the
AdvanceTrac/Traction Control™ is
active. If the light remains on, have
the system serviced immediately,
refer to theDrivingchapter for
more information.
Low tire pressure warning:
Illuminates when your tire pressure
is low. If the light remains on at
start up or while driving, the tire
pressure should be checked. Refer
toInflating your tiresin theTires, Wheels and Loadingchapter. When
the ignition is first turned to on, the light will illuminate for three
seconds to ensure the bulb is working. If the light does not turn on or
begins to flash, have the system inspected by your authorized dealer. For
more information on this system, refer toTire pressure monitoring
system (TPMS)in theTires, Wheels and Loadingchapter.
Low fuel:Illuminates when the fuel
level in the fuel tank is at or near
empty (refer toFuel gaugein this
chapter).
Speed control:Illuminates when
the speed control is engaged. Turns
off when the speed control system
is disengaged.
Anti-theft system:Flashes when
the SecuriLock™ Passive Anti-theft
System has been activated.
2009 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)
Instrument Cluster
21

HIGH ENGINE TEMPERATURE— Displayed when the engine
coolant is overheating. Engine coolant temperature warning lamp will
illuminate indicating coolant temperature is high. Stop the vehicle as
soon as safely possible, turn off the engine and let it cool. Check the
coolant level. Refer toEngine coolantin theMaintenance and
Specificationschapter. If the warning stays on or continues to come on,
contact your authorized dealer as soon as possible.
WARNING:When the engine and radiator are hot, scalding
coolant and steam may shoot out under pressure and cause
serious injury. Do not remove the cooling system cap when the engine
and radiator are hot.
HIGH MOTOR TEMPERATURE— Displayed when the motor
electronics are overheating. Stop the vehicle as soon as safely possible,
turn off the engine and let it cool. Refer toEngine coolant and
motor/electronics coolantin theMaintenance and Specifications
chapter. If the warning stays on or continues to come on, contact your
authorized dealer as soon as possible.
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/h). If the warning stays on after the park brake is released,
contact your authorized dealer as soon as possible.
XXX MILES TO E 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.
CHECK 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.
CHECK FUEL FILL INLET— Displayed when the fuel fill inlet may
not be properly closed. Refer toEasy Fuel™ “no cap” fuel systemin
theMaintenance and Specificationschapter.
BRAKE FLUID LEVEL LOW— Indicates the brake fluid level is low
and the brake system should be inspected immediately. Refer toBrake
fluidin theMaintenance and Specificationschapter.
REGEN BRAKE DISABLED— Indicates the regenerative braking
system is disabled at this moment. Please see your authorized dealer if
this warning remains present over several days.
2009 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)
Driver Controls
84

Note:After starting the vehicle, the engine may stop running to
conserve fuel after it is warmed-up and the high voltage battery is
sufficiently charged.
Note:If the vehicle does not start, put the gearshift lever into P (Park),
turn the ignition off, then attempt to start the vehicle again. If the
vehicle still does not start, it may require refueling, jump starting,
resetting of the fuel pump/high voltage shut-off switches or service. For
information on jump starting the vehicle and resetting the fuel
pump/high voltage shut-off switches, refer to theJump starting your
vehiclesection and theFuel pump/High voltage shut-off switches
section found in theRoadside Emergencieschapter.
Guarding against exhaust fumes
Carbon monoxide is present in exhaust fumes. Take precautions to avoid
its dangerous effects.
WARNING:If you smell exhaust fumes inside your vehicle, have
your dealer inspect your vehicle immediately. Do not drive if you
smell exhaust fumes.
Important ventilating information
If the engine is idling while the vehicle is stopped for a long period of
time, open the windows at least one inch (2.5 cm) or adjust the heating
or air conditioning to bring in fresh air.
ENGINE BLOCK/HIGH VOLTAGE BATTERY HEATER
(IF EQUIPPED)
An engine block/high voltage battery heater warms the engine coolant
and high voltage battery cells which aids in starting and allows the
heater/defroster system to respond quickly. If your vehicle is equipped
with this system, your equipment includes a heater element which is
installed in your engine block and a wire harness which allows the user
to connect the system to a grounded 120 volt a/c electrical source. The
block heater system is most effective when outdoor temperatures reach
below 0°F (-18°C).
WARNING:Failure to follow engine block heater instructions
could result in property damage or physical harm.
2009 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)
Driving
201

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
5 10A* Powertrain Control Module (PCM)
Keep Alive power, PCM relay,
Transmission control module,
Canister vent
6 — Not used
7 15A* Liftgate latch
8 5A* Traction battery control module
9 50A** Brake control module
10 30A** Front wipers
11 — Not used
12 40A** Blower motor
13 10A* A/C clutch
14 10A* Heater/Coolant pump
1550A** Traction Battery Control Module
(TBCM)
16 40A** Cooling fan 1
17 40A** Cooling fan 2
18 50A** Brake control module solenoid
19 30A** Power seats
20 — A/C clutch relay
21A — Rear defroster relay
21B — Ignition relay
21C — Blower relay
21D — PCM relay
22 15A* Ignition coils
23 15A* Fuel injectors
24 10A* Transmission control module
25 5A* Traction battery control module,
Thermal expansion valve
26 20A* Fuel pump, Traction battery
control module
2009 Mariner Hybrid(mhv)
Owners Guide, 1st Printing
USA(fus)
Roadside Emergencies
233