engine SUBARU LEGACY 2004 4.G Manual Online

9-16
In case of emergency
Do not jump start unless cables in suitable con-
dition are available.y
A running engine can be dangerous. Keep
your fingers, hands, clothing, hair and tools
away from the cooling fan, belts and any other
moving engine parts. Removing rings, watches
and ties is advisable.
When your vehicle does not start due to a run down
(discharged) battery, the vehicle may be jump started
by connecting your battery to another battery (called
the booster battery) with jumper cables.
Jump starting is dangerous if it done incorrectly. If you
are unsure about the proper procedure for jump start-
ing, consult a competent mechanic. „ How to jump start
1. Make sure the booster battery is 12 volts and the
negative terminal is grounded.
2. If the booster battery is in another vehicle, do not let
the two vehicles touch.
3. Turn off all unnecessary lights and accessories.
4. Connect the jumper cables exactly in the sequence
illustrated.

9-17
In case of emergency
– CONTINUED –
2.5 liter models
A) Booster battery
B) Engine lifting bracket
_
_
+ +
4 1 2
3
A
B
UB8007BC

9-18
In case of emergency
3.0 liter models
UB9031BB
1) Connect one jumper cable to the
positive (+) terminal on the dis-
charged battery.
2) Connect the other end of the
jumper cable to the positive (+) ter-
minal of the booster battery.
3) Connect one end of the other
cable to the negative (–) terminal
of the booster battery.
4) Connect the other end of the ca-
ble.
2.5 liter models: To the engine lift-
ing bracket.
3.0 liter models: To the strut
mounting nut.
Make sure that the cables are not
near any moving parts and that the
cable clamps are not in contact
with any other metal.

9-19
In case of emergency
– CONTINUED –
5. Start the engine of the vehicle with the booster bat-
tery and run it at moderate speed. Then start the en-
gine of the vehicle that has the discharged battery.
6. When finished, carefully disconnect the cables in
exactly the reverse order.Engine overheating
Never attempt to remove the radiator cap until
the engine has been shut off and has fully
cooled down. When the engine is hot, the cool-
ant is under pressure. Removing the cap while
the engine is still hot could release a spray of
boiling hot coolant, which could burn you very
seriously.
If the engine overheats, safely pull off the road and
stop the vehicle in a safe place. „ If steam is coming from the engine
compartment
Turn the engine off and get everyone away from the
vehicle until it cools down. „ If no steam is coming from the engine
compartment
1. Keep the engine running at idling speed.
2. Open the hood to ventilate the engine compart- ment.

9-20
In case of emergency
Confirm that the cooling fan is turning. If the fan is not
turning, immediately turn the engine off and contact
your authorized dealer for repair.
3. After the engine coolant temperature has dropped,
turn off the engine.
If the temperature gauge stays at the overheated
zone, turn the engine off.
4. After the engine has fully cooled down, check the
coolant level in the reserve tank.
If the coolant level is below the “MIN” mark, add cool-
ant up to the “MAX” mark.
5. If there is no coolant in the reserve tank, add cool-
ant to the reserve tank. Then remove the radiator cap
and fill the radiator with coolant.
If you remove the radiator cap from a hot radiator, first
wrap a thick cloth around the radiator cap, then turn
the cap counterclockwise slowly without pressing
down until it stops. Release the pressure from the ra-
diator. After the pressure has been fully released, re-
move the cap by pressing down and turning it.Towing
Never tow AWD vehicles (both AT and MT) with
the front wheels raised off the ground while the
rear wheels are on the ground, or with the rear
wheels raised off the ground while the front
wheels are on the ground. This will cause the
vehicle to spin away due to the operation or de-
terioration of the center differential.
If towing is necessary, it is best done by your SUBARU
UG9013BA

9-28
In case of emergency
„
Towing with all wheels on the ground
yNever turn the ignition switch to the “LOCK”
position while the vehicle is being towed be-
cause the steering wheel and the direction of
the wheels will be locked.y Remember that the brake booster and power
steering do not function when the engine is not
running. Because the engine is turned off, it will
take greater effort to operate the brake pedal
and steering wheel.
y If transmission failure occurs, transport your
vehicle on a flat-bed truck. y Do not run the engine while being towed us-
ing this method. Transmission damage could
result if the vehicle is towed with the engine
running. y For vehicles with automatic transmission,
the traveling speed must be limited to less than
20 mph (30 km/h) and the traveling distance to
less than 31 miles (50 km). For greater speeds
and distances, transport your vehicle on a flat-
bed truck.
1. Check the transmission and differential oil levels
and add oil to bring it to the upper level if necessary.
2. Release the parking brake and put the transmis-
sion in neutral.
3. The ignition switch should be in the “ACC” position
while the vehicle is being towed.
4. Take up slack in the towline slowly to prevent dam-
age to the vehicle.UB8010AA

10-2
Appearance care
Appearance careExterior care „
Washing
yWhen washing the vehicle, the brakes may
get wet. As a result, the brake stopping dis-
tance will be longer. To dry the brakes, drive the
vehicle at a safe speed while lightly pressing
the brake pedal to heat up the brakes.y Do not wash the engine compartment and ar-
eas adjacent to it. If water enters the engine air
intake, electrical parts or the power steering flu-
id reservoir, it will cause engine trouble or
faulty power steering respectively.
The best way to preserve your vehicle’s beauty is fre-
quent washing. Wash the vehicle at least once a
month to avoid contamination by road grime.
Wash dirt off with a wet sponge and plenty of luke-
warm or cold water. Do not wash the vehicle with hot
water and in direct sunlight.
Salt, chemicals, insects, tar, soot and bird droppings
should be washed off by using a light detergent, as re- quired. If you use a light detergent, make certain that
it is a neutral detergent. Do not use strong soap or
chemical detergents. All cleaning agents should be
promptly flushed from the surface and not allowed to
dry there. Rinse the vehicle thoroughly with plenty of
lukewarm water. Wipe the remaining water off with a
chamois or soft cloth.
NOTE y
Before having your vehicle washed in an auto-
matic car wash, retract the pillar mounted antenna
to prevent it from being damaged.y When having your vehicle washed in an auto-
matic car wash, make sure beforehand that the car
wash is of suitable type. Automatic car wash
brushes or other equipment may damage the rear
wiper and rear/roof spoiler (if equipped). T Washing the underbody
Chemicals, salts and gravel used for deicing road sur-
faces are extremely corrosive, accelerating the corro-
sion of underbody components, such as the exhaust
system, fuel and brake lines, brake cables, floor pan
and fenders, and suspension.
Thoroughly flush the underbody and inside of the
fenders with lukewarm or cold water at frequent inter-
vals to reduce the harmful effects of such agents.

10-4
Appearance care
„
Cleaning aluminum wheels
y Promptly wipe the aluminum wheels clean of any
kind of grime or agent. If dirt is left on too long, it may
be difficult to clean off.y Do not use soap containing grit to clean the wheels.
Be sure to use a neutral cleaning agent, and later rinse
thoroughly with water. Do not clean the wheels with a
stiff brush or expose them to a high-speed washing
device. y Clean the vehicle (including the aluminum wheels)
with water as soon as possible when it has been
splashed with sea water, exposed to sea breezes, or
driven on roads treated with salt or other agents. „
Cleaning fog light lens (for OUTBACK)
1. Stop the vehicle in a safe place.
2. Stop the engine and turn off the fog lights.
1) Counter-clockwise
2) Light lens horizontal center line
3. Check that the fog lights are not hot. Then, grasp
the protector and turn it approximately 10 ° counter-
clockwise.
4. Pull the protector off the fog light.
5. Wash the lens with water.
6. Apply the protector to the lens at an angle of ap-
proximately 10 ° from the fog light’s horizontal center
line. Then, turn the protector clockwise until it stops.
1
2
UBA017BB

11 - 1
11
Maintenance and service
Ma inte nan ce sche du le .. ... ... ... .. ... ... ... ... .. ... ... 11-3
Ma in te nan ce precau tio ns ... ... .. ... ... ... ... .. ... ... 11-3
B ef ore checki ng o r servicing in th e e ngi ne
c o m part ment ..... ..................... ..................... ... 11-4
W hen y ou do c h ecking or servic ing in t h e
e ngi ne c omp artme nt while the engi ne is
r u nn ing ............... ..................... ..................... ... 11-5
En gine ho od .. ... ... ... .. ... ... ... ... ... .. ... ... ... ... .. ... ... 11-5
Engine compartment overview ................... 11-8 2.5 liter models .................................................. 11-8
2.5 liter CALIFORNIA spec models ................. 11-9
3.0 liter models .................................................. 11-10
Engine oil ...................................................... 11-11 Checking the oil level ....................................... 11-11
Changing the oil and oil filter .......................... 11-12
Recommended grade and viscosity ................ 11-15
Recommended grade and viscosity under severe driving conditions .............................. 11-16
Cooling system ............................................. 11-17 Hose and connections ...................................... 11-18
Engine coolant .................................................. 11-18
Air cleaner element ...................................... 11-22 Replacing the air cleaner element ................... 11-22
Spark plugs ................................................... 11-25 Recommended spark plugs ............................. 11-25
Drive belts ..................................................... 11-26 2.5 liter models .................................................. 11-26
3.0 liter models .................................................. 11-26
Manual transmission oil ............................... 11-27 Checking the oil level ....................................... 11-27 Recommended grade and viscosity ............... 11-27
Automatic transmission fluid ...................... 11-28 Checking the fluid level .................................... 11-28
Recommended fluid ......................................... 11-30
Front differential gear oil (AT vehicles) ...... 11-30 Checking the oil level ....................................... 11-30
Recommended grade and viscosity ............... 11-31
Rear differential gear oil ............................... 11-32 Checking the gear oil level .............................. 11-32
Recommended grade and viscosity ............... 11-34
Power steering fluid ...................................... 11-35 Checking the fluid level .................................... 11-35
Recommended fluid ......................................... 11-36
Brake fluid ..................................................... 11-36 Checking the fluid level .................................... 11-36
Recommended brake fluid ............................... 11-37
Clutch fluid (MT vehicles) ............................ 11-38 Checking the fluid level .................................... 11-38
Recommended clutch fluid .............................. 11-38
Brake booster ................................................ 11-39
Brake pedal .................................................... 11-39 Checking the brake pedal free play ................ 11-39
Checking the brake pedal reserve distance ... 11-40
Clutch pedal (Manual transmission vehicles) ............... 11-40Checking the clutch function .......................... 11-40
Checking the clutch pedal free play ............... 11-41
Replacement of brake pad and lining ......... 11-41 Breaking-in of new brake pads and linings .... 11-42

11 - 4
2Maintenance and service
the materials in the vehicle may be hazardous if
improperly used or handled, for example, bat-tery acid. y
Your vehicle should only be serviced by per-
sons fully competent to do so. Serious person-
al injury may result to persons not experienced
in servicing vehicles. y Always use the proper tools and make certain
that they are well maintained. y Never get under the vehicle supported only
by a jack. Always use a safety stands to sup-
port the vehicle. y Never keep the engine running in a poorly
ventilated area, such as a garage or other
closed areas. y Do not smoke or allow open flames around
the fuel or battery. This will cause a fire. y Because the fuel system is under pressure,
replacement of the fuel filter should be per-
formed only by your SUBARU dealer.y Wear adequate eye protection to guard
against getting oil or fluids in your eyes. If
something does get in your eyes, thoroughly
wash them out with clean water. y Do not tamper with the wiring of the SRS air-
bag system or seatbelt pretensioner system, or
attempt to take its connectors apart, as that may activate the system or it can render it inop-
erative. The wiring and connectors of these
systems are yellow for easy identification. NEV-
ER use a circuit tester for these wiring.
If your SRS airbag or seatbelt pretensioner
needs service, consult your nearest SUBARU
dealer.
„ Before checking or servicing in the en-
gine compartment
yAlways stop the engine and set the parking
brake firmly to prevent the vehicle from mov-
ing. y Always let the engine cool down. Engine
parts become very hot when the engine is run-
ning and remain hot for some time after the en-
gine is stopped.y Do not spill engine oil, engine coolant, brake
fluid or any other fluid on hot engine compo-
nents. This may cause a fire.y Always remove the key from the ignition
switch. When the ignition switch is in the “ON”
position, the cooling fan may operate suddenly