Page 298 of 344

BATTERY
Your vehicle is equipped with a
Motorcraft maintenance-free battery
which normally does not require
additional water during its life of
service.
However, for severe usage or in high temperature climates, check the
battery electrolyte level. Refer toscheduled maintenance information
for the service interval schedules.
Keep the electrolyte level in each cell up to the “level indicator”.
Do not overfill the battery cells.
If the electrolyte level in the battery is low, you can add plain tap water
to the battery, as long as you do not use hard water (water with a high
mineral or alkali content). If possible, however, try to only fill the battery
cells with distilled water. If the battery needs water often, have the
charging system checked.
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.
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.
2006 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
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Page 316 of 344

Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If the
indicator is on, refer to the
description in theWarning lights and chimessection of the
Instrument Clusterchapter. Your vehicle may not pass the I/M test with
the
indicator on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a “not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
POWER STEERING FLUID
Check the power steering fluid. Refer to thescheduled maintenance
guidefor the service interval schedules. If adding fluid is necessary, use
only MERCONAT F.
1. Start the engine and let it run
until it reaches normal operating
temperature (the engine coolant
temperature gauge indicator will be
near the center of the normal area
between H and C).
2. While the engine idles, turn the
steering wheel left and right several
times.
3. Turn the engine off.
4. Check the fluid level in the reservoir.
5. The fluid level should be between the MIN and MAX lines. Do not add
fluid if the level is in this range.
6. If the fluid is low, add fluid in small amounts, continuously checking
the level until it reaches the correct operating range. Be sure to put the
cap back on the reservoir.
2006 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
316
Page 332 of 344

A
Accessory delay ..........................65
AdvanceTrac ..............................221
Air cleaner filter .......................319
Air conditioning ..........................43
Airbag supplemental restraint
system ................151–152, 160, 162
and child safety seats ............153
description ..............152, 160, 162
disposal ....................................165
driver airbag ............154, 161, 163
indicator light .................160, 165
operation .................154, 161, 163
passenger airbag .....154, 161, 163
side airbag ...............................160
All Wheel Drive (AWD),
driving off road .........................235
Ambulance packages ....................8
Antifreeze
(see Engine coolant) ................300
Anti-lock brake system
(see Brakes) ..............................220
Anti-theft system ......................121
Audio system
(see Radio) ......................21, 26, 31
Automatic transmission
driving an automatic
overdrive .........................228, 231
fluid, adding ............................317
fluid, checking ........................317
fluid, refill capacities ..............321
fluid, specification ..................326
Auxiliary power point .................62
Axle
lubricant specifications ..323, 326
refill capacities ........................321
B
Battery .......................................298acid, treating emergencies .....298
jumping a disabled battery ....266
maintenance-free ....................298
replacement, specifications ...319
servicing ..................................298
BeltMinder .................................146
Brakes ........................................219
anti-lock ...................................220
anti-lock brake system (ABS)
warning light ...........................220
fluid, checking and adding ....317
fluid, refill capacities ..............321
fluid, specifications .........323, 326
lubricant specifications ..323, 326
parking ....................................220
shift interlock ..........................227
C
Calculating load ........................209
Capacities for refilling fluids ....321
Cargo cover ...............................105
Cargo management system ......105
Cassette tape player .............21, 26
Cell phone use ..............................9
Changing a tire .........................256
Child safety restraints ..............166
child safety belts ....................166
Child safety seats ......................170
attaching with tether straps ..174
in front seat ............................171
in rear seat ..............................171
Cleaning your vehicle
engine compartment ..............283
instrument panel ....................285
interior .....................................286
interior trim ............................285
plastic parts ............................284
2006 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Index
332