engine SUBARU LEGACY 2006 4.G Owner's Guide

Climate control 4-7
– CONTINUED –
When driving on a dusty road, set the air
inlet control button to the ON position.
„
Air conditioner operation
T Cooling or dehumidifying
For cooling and dehumidification of the
passenger compartment, air flows through
the instrument panel outlets:
1. Set the air inlet selection button to the
OFF position.
2. Set the air flow control dial to the “ ” position.
3. Set the air conditioner button to the
“ON” position.
4. Set the temperature control dial to the
blue side.
5. Set the fan speed control dial at the de-
sired speed. T Defrosting or defogging
To direct warm air to the windshield and
front door windows:
1. Set the air outlet control dial to the “ ” position.
2. Set the temperature control dial to the
red side.
3. Set the fan speed control dial at the
highest speed.
NOTE
In a vehicle equipped with an air condi-
tioner, when the dial is placed in the
“ ” position or “ ” position the
air conditioner compressor automati-
cally operates to quickly defog the
windshield. However the indicator on
the air conditioner
button will not come
on. At the same time, the air inlet selec-
tion is automatically set to “outside
air” mode.
In this state, you cannot select “recir-
culation” mode by manually pressing
the air inlet selection button.
Also, you cannot stop the air condi-
tioner compressor by pressing the air
conditioner button. Automatic climate control
system (if equipped)
NOTE y
Operate the automatic climate con-
trol system when the engine is run-
ning. y The blower fan rotates at a low speed
when the engine coolant temperature
is low.
For efficient defogging or dehumidify-
ing in cold weather, press the “A/C”button. y Even when cooling is not necessary,
setting the temperature much lower
than the current outlet air temperatureturns on the air c onditioner compres-
sor automatically and the “A/C” indica-
tor light on the control panel comes on.
The automatic climate control system au-
tomatically controls outlet air temperature,
fan speed, air flow distribution air-inlet
control, and air conditioner compressor
operation. It activates when the “AUTO”
button is pressed, and is used to maintain
a constant, comfortabl e climate within the
passenger compartment.
The temperature can be set within a rangeof 65 to 85 °F (18 to 32 °C).
Continued operation in the ON posi-
tion may fog up the windows.
Switch to the OFF position as soon
as the outside dusty condition
clears.

4-12 Climate control
Operating tips for heater and
air conditioner „Cleaning ventilator grille
Always keep the front ventilator inlet grille
free of snow, leaves, or other obstructions
to ensure efficient heating and defrosting.
Since the condenser is located in front of
the radiator, this area should be kept
clean because cooling performance is im-
paired by any accumulation of insects and
leaves on the condenser. „ Efficient cooling after parking
in direct sunlight
After parking in direct sunlight, drive with
the windows open for a few minutes to al- low outside air to circulate into the heated
interior. This results in quicker cooling by
the air conditioner. Keep the windows
closed during the operation of the air con-
ditioner for maximum cooling efficiency. „
Lubrication oil circulation in
the refrigerant circuit
Operate the air conditioner compressor at
a low engine speed (at idle or low driving
speeds) a few minutes each month during
the off-season to circulate its oil. „ Checking air conditioning
system before summer sea-son
Check the air conditioner unit for refriger-
ant leaks, hose conditions, and proper op-
eration each spring. Have your SUBARU
dealer perform this check. „ Cooling and dehumidifying in
high humidity and low tem-
perature weather condition
Under certain weather conditions (high
relative humidity, low temperatures, etc.)
a small amount of water vapor emission
from the air outlets may be noticed. This
condition is normal and does not indicate any problem with the air conditioning sys-
tem. „
Air conditioner compressor
shut-off when engine is
heavily loaded
To improve acceleration and gas mileage,
the air conditioner compressor is de-
signed to temporarily shut off during air
conditioner operation whenever the accel-
erator is fully depressed such as during
rapid acceleration or when driving on a
steep upgrade. „ Refrigerant for your climate
control system
Your air conditioner uses ozone friendly
refrigerant HFC134a. Therefore, the
method of adding, changing or checking
the refrigerant is diffe rent from the method
for CFC12 (freon). Consult your SUBARU
dealer for service. Repairs needed as a
result of using the wrong refrigerant are
not covered under warranty.
400590

Interior equipment 6-9
– CONTINUED –
NOTE
When the lid of the center console is
closed, a gap remains between the
center console and the lid to allow the
power outlet in th e center console to
be used. Pass the electrical appli-
ance’s cord through this gap.
Ashtray
Fully close the ashtray after using it to help
reduce residual smoke. „ Front ashtray
To open the ashtray, push lightly on the lid
below the climate controls.
Fully close the lid after using it to help re-
duce residual smoke.
When using appliances connect-
ed to two or more outlets simulta-
neously, the total power con-
sumed by them must not exceed
120W. Overloading the accessory
power outlet can cause a short
circuit. Do not use double adapt-
ers or more than one electrical ap-
pliance.
y If the plug on your electric appli-
ance is either too loose or too
tight for the accessory power out-
let, this can result in a poor con-
tact or cause the plug to get stuck.
Only use plugs that fit properly.
y Use of an electric appliance in the
accessory power outlet for a long
period of time while the engine is
not running can cause battery dis-
charge.
y Before driving your vehicle, make
sure that the plug and the cord on
your electrical appliance will not
interfere with your shifting gears
and operating the accelerator and
brake pedals. If they do, do not
use the electrical appliance while
driving.
600508
Do not use ashtrays as waste recep-
tacles or leave a lighted cigarette in
an ashtray. This could cause a fire.
400220

7
Starting and operating
Fuel ...................................................................... 7-2 Fuel requirements .................................................. 7-2
Fuel filler lid and cap .............................................. 7-4
State emission testing (U .S. only) .................... 7-6
Preparing to drive .............................................. 7-7
Starting the engine ............................................. 7-8 Manual transmission vehicle ................................. 7-8
Automatic transmission vehicle ............................ 7-8
Stopping the engine ........................................... 7-9
Manual transmission ......................................... 7-9 Shifting speeds ....................................................... 7-10
Driving tips .............................................................. 7-11
Automatic transmission – 4- speed ................... 7-11
Selector lever .......................................................... 7-12
Selector lever reverse inhibiting function ............ 7-13
Selection of manual mode ..................................... 7-14
Maximum speeds .................................................... 7-15
Driving tips .............................................................. 7-16
SPORT mode ........................................................... 7-16
Shift lock release . ........................................... ........ 7-16
Automatic transmission – 5- speed ................... 7-17
Selector lever .......................................................... 7-18
Selector lever reverse inhibiting function ............ 7-19
Selection of manual mode ..................................... 7-20
Maximum speeds .................................................... 7-22
Driving tips .............................................................. 7-23
SPORT mode ........................................................... 7-23
Shift lock release . ........................................... ........ 7-23Rear viscous limited slip differential (LSD)
(if equipped) ..................................................... 7-24
Power steering .................................................... 7-25
Braking ................................................................ 7-25 Braking tips ............................................................. 7-25
Brake system .......................................................... 7-25
Disc brake pad wear warning in dicators .............. 7-26
ABS (Anti-lock Brake System) .......................... 7-26 ABS system self-check ......... ................................. 7-26
ABS warning light ................................................... 7-27
Electronic Brake Force Distribution (EBD) system .............................................................. 7-28Steps to take if EBD system fails .......................... 7-28
Vehicle Dynamics Control system (if equipped) ..................................................... 7-29Vehicle Dynamics Control system monitor .......... 7-31
Vehicle Dynamics Control OFF switch ................. 7-32
Tire pressure monitoring system (TPMS) (if equipped) ..................................................... 7-33
Parking your vehicle .......................................... 7-35
Cruise control ..................................................... 7-36 To set cruise control .............................................. 7-37
To temporarily cancel the cruise control ............. 7-37
To turn off the cruise control ................................. 7-38
To change the cruising speed ............................... 7-38
Cruise control indicator light ................................. 7-39
Cruise control set indicator light .......................... 7-39

7-2 Starting and operating
Starting and operatingFuel
„Fuel requirements
T 2.5-liter non-turbo models
The 2.5-liter non-turbo engine is designed
to operate using unleaded gasoline with
an octane rating of 87 AKI or higher. T 2.5-liter turbo models and 3.0-liter models
The 2.5-liter turbo engine and 3.0-liter en-
gine are designed to operate using premi-
um unleaded gasoline with an octane rat-
ing of 91 AKI or higher. If premium unlead-
ed gasoline is not available, regular un-
leaded gasoline with an octane rating of
87 AKI or higher may be temporarily used.
For optimum engine performance and
driveability, it is required (for 2.5-liter turbo
models), and recommended (for 3.0-liter
models) that you use premium grade un-
leaded gasoline.
NOTE
Be sure to use premium unleaded gas- oline of 91 AKI or higher for a 2.5-liter
turbo engine model. If other gasoline
(lower than 91 AKI) is used, knocking,
reduced output and poor accelerator
response will result. T
Fuel octane rating
This octane rating is the average of the
Research Octane and Motor Octane num-
bers and is commonly referred to as the
Anti Knock Index (AKI).
Using a gasoline with a lower octane rat-
ing can cause persistent and heavy
knocking, which can damage the engine.
Do not be concerned if your vehicle some-
times knocks lightly when you drive up a
hill or when you accelerate. See your
dealer or a qualified service technician if
you use a fuel with the specified octane
rating and your vehicle knocks heavily or persistently. T Unleaded gasoline
The neck of the fuel f iller pipe is designed
to accept only an unleaded gasoline filler
nozzle. Under no circumstances should
leaded gasoline be used because it will damage the emission control system and
may impair driveability and fuel economy. T California fuel
If your vehicle was certified to California
Emission Standards as indicated on the underhood tune-up label,
it is designed to
optimize engine and emission control sys-
tem performance with gasoline that meets
the clean burning low-sulfur California
gasoline specifications. If you live in any
other state than Calif ornia, your vehicle
will operate on gasoline meeting Federal
specifications. Gasoline sold outside Cali-
fornia is permitted to have higher sulfur
levels, which may affect the performance
of your vehicle’s catalytic converter and
may produce a sulfur exhaust odor or
smell. SUBARU recomm ends that you try
a different brand of unleaded gasoline
having lower sulfur to determine if the
problem is fuel related before returning
your vehicle to an authorized dealer for
service. The CHECK ENGINE warning
light/Malfunction indicator lamp may also
turn on. If this occurs, return to your autho-
rized SUBARU dealer for diagnosis. If it is
determined that the condition is caused by
the type of fuel us ed, repairs may not be
covered by your warranty. T MMT
Some gasoline contains an octane-en-
hancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl). If
you use such fuels, your emission control
system performance may deteriorate and
the CHECK ENGINE warning light/Mal-
Use of a fuel which is low in quality
or use of an inappropriate fuel addi-
tive may cause engine damage.

Starting and operating 7-3
– CONTINUED –
function indicator lamp may turn on. If this
happens, return to your authorized
SUBARU Dealer for service. If it is deter-
mined that the condition is caused by the
type of fuel used, repairs may not be cov-
ered by your warranty. T
Gasoline for cleaner air
Your use of gasoline with detergent addi-
tives will help prevent deposits from form-
ing in your engine and fuel system. This
helps keep your engine in tune and your
emission control system working properly,
and is a way of doing your part for cleaner
air. If you continuously use a high quality
fuel with the proper detergent and other
additives, you should never need to add
any fuel system cleaning agents to your
fuel tank.
Many gasolines are now blended with ma-
terials called oxygenates. Use of these fu-
els can also help keep the air cleaner. Ox-
ygenated blend fuels, such as MTBE (Me- thyl Tertiary Butyl ether) or ethanol (ethyl
or grain alcohol) may be used in your ve-
hicle, but should contain no more than
15% MTBE or 10% ethanol for the proper
operation of your SUBARU.
In addition, some gasoline suppliers are
now producing reformulated gasolines,
which are designed to reduce vehicle
emissions. SUBARU approves the use of
reformulated gasoline.
If you are not sure what the fuel contains,
you should ask your service station oper-
ators if their gasolines contain detergents
and oxygenates and if they have been re-
formulated to reduce vehicle emissions.
As additional guidance, only use fuels
suited for your vehicle as explained in the
following. y
Fuel should be unleaded and have an
octane rating no lower than that specified
in this manual. y Methanol (methyl or wood alcohol) is
sometimes mixed with unleaded gasoline.
Methanol can be used in your vehicle ONLY if it does not exceed 5% of the fuel
mixture AND if it is accompanied by suffi-
cient quantities of the proper cosolvents
and corrosion inhibitors required to pre-
vent damage to the fuel system. Do not
use fuel containing methanol EXCEPT un-der these conditions.y
If undesirable driveability problems are
experienced and you suspect they may be
fuel related, try a di fferent brand of gaso-
line before seeking service at your
SUBARU dealer.y Fuel system damage or driveability
problems which result from the use of im-
proper fuel are not covered under the
SUBARU Limited Warranty.
Do not let fuel spill on the exterior
surfaces of the vehicle. Fuels con-
taining alcohol may cause paint
damage, which is not covered under
the SUBARU Limited Warranty.

Starting and operating 7-5
– CONTINUED –
1) Open
2) Close
3. Remove the fuel filler cap by turning it
slowly counterclockwise.
4. Stop filling the tank after the fuel filler
pump automatically cl icks off. Do not add
any more fuel.
5. Put the cap back on, turn it clockwise
until you hear a clicking noise. Be certain
not to catch the tether under the cap while
tightening.
6. Close the fuel filler lid completely.
If you spill any fuel on the painted surface,
rinse it off immediately. Otherwise, the
painted surface could be damaged.
NOTE y
You will see the “ ” sign in the
fuel gauge. This indicates that the fuel
filler door (lid) is located on the right
side of the vehicle. y If the fuel filler cap is not tightened
until it clicks or if the tether is caught
under the cap, the CHECK ENGINE
warning light may come on. Refer to
the “Warning and indicator lights” sec-
tion located in chapter 3.
(Turbo model only) Promptly put fuel in
the tank whenever the low fuel warning
light comes on. Engine misfires as a re-
sult of an empty tank could cause dam-
age to the engine.
y Gasoline vapor is highly flamma-
ble. Before refueling, always first
stop the engine and make sure
that there are no lighted ciga-
rettes, open flames or electrical
sparks in the adjacent area.
1 2
700344
y
When opening the cap, do not re-
move the cap quickly. Fuel may be
under pressure and spray out ofthe fuel filler neck especially in
hot weather, which may cause in-
jury.
200253
y Never add any cleaning agents to the fuel tank. The addition of a
cleaning agent may cause dam-
age to the fuel system.
y Make sure that the cap is tight-
ened until it clicks to prevent fuel
spillage in the event of an acci-
dent.
y Do not let fuel sp ill on the exterior
surfaces of the vehicle. Fuels may
cause paint damage, which is not
covered under the SUBARU Limit-
ed Warranty.

Starting and operating 7-7
Under no circumstances should the rear
wheels be jacked off the ground, nor
should the driveshaft be disconnected for
state emission testing.
The EPA has issued regulations for in-
specting the On-Board Diagnostic (OBD)
system as part of the state emissions in-
spection. The OBD system is designed to
detect engine and transmission problems
that might cause vehicle emissions to ex-
ceed allowable limits. These inspections
apply to all 1996 model year and newer
passenger cars and li ght trucks. Over 30
states plus the Distr ict of Columbia have
implemented the OBD system inspection. y The inspection of the OBD system con-
sists of a visual operational check of the “ CHECK ENGINE ” warning light/malfunc-
tion indicator lamp (MIL) and an examina-
tion of the OBD system with an electronic
scan tool while the engine is running. y A vehicle passes
the OBD system in-
spection if proper the “ CHECK ENGINE”
warning light/MIL illumination is observed, there is no stored diagnostic trouble
codes, and the OBD system readiness
monitors are complete. y A vehicle fails
the OBD inspection if the
“ CHECK ENGINE ” warning light/MIL is
not properly operating or there is one or
more diagnostic trouble codes stored in vehicle’s computer with the “
CHECK EN-
GINE ” warning light/MIL illuminated.
y A state emission inspection may reject
(not pass or fail) a vehicle if the number of
OBD system readiness monitors “ Not
Ready ” is greater than one. Under this
condition, the vehicle operator should be
instructed to drive his/her vehicle for a few
days to set the monitors and return for an
emission re-inspection. y Owners of rejected or failing vehicles
should contact their SUBARU Dealer for
service.
Preparing to drive
You should perform the following checks
and adjustments every day before you
start driving.
1. Check that all windows, mirrors, and
lights are clean and unobstructed.
2. Check the appearance and condition of
the tires. Also check tires for proper infla-tion.
3. Look under the vehicle for any sign of leaks.
4. Check that the hood, trunk (Sedan)
and rear gate (Station wagon) are fully
closed.
5. Check the adjustment of the seat.
6. Check the adjustment of the inside and outside mirrors.
7. Fasten your seatbelt. Check that your
passengers have fastened their seatbelts.
8. Check the operation of the warning and
indicator lights when the ignition switch is
turned to the “ON” position.
9. Check the gauges, indicator and warn-
ing lights after starting the engine.
NOTE
Engine oil, engine coolant, brake fluid,
washer fluid and other fluid levels
should be checked daily, weekly or at
fuel stops.

7-8 Starting and operating
Starting the engine
„Manual transmission vehicle
1. Apply the parking brake.
2. Turn off unnecessary lights and acces-
sories.
3. Press the clutch pedal to the floor and
shift the shift leve r into neutral.
Hold the clutch pedal to the floor while
starting the engine. The starter motor will
only operate when the clutch pedal is
pressed fully to the floor.
4. Turn the ignition switch to the “ON” po-
sition and check the operation of the warn-
ing and indicator lights. Refer to the
“Warning and indicator lights” section
(chapter 3).
5. Turn the ignition sw itch to the “START”
position without depressing the accelera-
tor pedal. Release the key immediately af-
ter the engine has started. If the engine does not
start, try the follow-
ing.
1) Turn the ignition switch to the “OFF”
position and wait for at least 10 sec-
onds. After checking that the parking
brake is firmly set, turn the ignition
switch to the “START” position while de-
pressing the accelerator pedal slightly
(approximately a quarter of the full
stroke). Release th e accelerator pedal
as soon as the engine starts.
2) If this fails to start the engine, turn theignition switch back to the “OFF” posi-
tion and wait for at least 10 seconds.
Then fully depress the accelerator ped-
al and turn the ignition switch to the
“START” position. If the engine starts,
quickly release the accelerator pedal.
3) If this fails to start the engine, turn the
ignition switch again to the “OFF” posi-
tion. After waiting for 10 seconds or
longer, turn the ignition switch to the
“START” position without depressing
the accelerator pedal.
4) If the engine still refuses to start, con-
tact your nearest SUBARU dealer for assistance.
6. Confirm that all warning and indicator
lights have gone off after the engine has
started. The fuel injection system auto-
matically lowers the idle speed as the en-
gine warms up. „
Automatic transmission vehi-
cle1. Apply the parking brake.
2. Turn off unnecessary lights and acces-sories.
3. Shift the selector lever to the “P” or “N”
position (preferably “P” position). The
starter will only operate when the select
lever is at the “P” or “N” position.
4. Turn the ignition switch to the “ON” po-
sition and check the operation of the warn-
ing and indicator li ghts. Refer to the
“Warning and indicator lights” section
(chapter 3).
5. Turn the ignition switch to the “START”
position without depressing the accelera-
tor pedal. Release the key immediately af-
ter the engine has started.
If the engine does not start, try the follow-
ing. 1) Turn the ignition switch to the “OFF”
position and wait for at least 10 sec-
Do not operate the starter motor
continuously for more than ten sec-
onds. If the engine fails to start after
operating the starte
r for five to ten
seconds, wait for ten seconds or
more before trying again.
If you restart the engine while the
vehicle is moving, shift the selector
lever into the “N” position. Do not
attempt to place the selector lever of
a moving vehicle into the “P” posi- tion.

Starting and operating 7-9
– CONTINUED –
onds. After checking that the parking
brake is firmly set, turn the ignition
switch to the “START” position while de-
pressing the accelerator pedal slightly
(approximately a quarter of the full
stroke). Release the accelerator pedal
as soon as the engine starts.
2) If this fails to start the engine, turn the
ignition switch back to the “OFF” posi-
tion and wait for at least 10 seconds.
Then fully depress the accelerator ped-
al and turn the ignition switch to the
“START” position. If the engine starts,
quickly release the accelerator pedal.
3) If this fails to start the engine, turn the
ignition switch again to the “OFF” posi-
tion. After waiting for 10 seconds or
longer, turn the ignition switch to the
“START” position without depressing
the accelerator pedal.
4) If the engine still refuses to start, con-
tact your nearest SUBARU dealer forassistance.
6. Confirm that all warning and indicator
lights have gone out after the engine has
started. The fuel in jection system auto-
matically lowers the idle speed as the en-
gine warms up.
While the engine is warming up, make
sure that the selector lever is at the “P” or
“N” position and that the parking brake is
applied.
Stopping the engine
The ignition switch should be turned off
only when the vehicle is stopped and the
engine is idling.
Manual transmission
The manual transmission is a fully syn-
chromeshed, 5-forward-speed and 1-re-
verse-speed transmission.
Do not stop the engine when the ve-
hicle is moving. This will cause loss
of power to the power steering and
the brake booster, making steering
and braking more difficult. It could
also result in a ccidental activation
of the “LOCK” position on the igni-
tion switch, causing the steering
wheel to lock.Do not drive the vehicle with the
clutch disengaged (i.e., when the
clutch pedal is depressed) or with
the shift lever in the neutral posi-
tion. Engine braking has no effect in
either of these conditions and the
risk of an accident is consequently
increased. Shift into reverse ONLY when the
vehicle has completely stopped. It
may cause damage to the transmis- sion to try shifti ng into reverse
when the vehicle is moving.