2003 SUBARU LEGACY engine overheat

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How to use this owner
’s manual
Using your Owner ’s manual
Before you operate your vehicle, carefully read this manual. To protect yourself and extend the service life of your vehicle, follow the instructions
in this manual. Failure to observe these instructions may result in serious
injury and damage to your vehicle.
This manual is composed of fourteen chapters. Each chapter begins with a brief table of contents, so you can usually tell at a glance if that
chapter contains the information you want. Chapter 1: Seat, seatbelt and SRS airbags
This chapter informs you how to use the seat and seatbelt and contains
precautions for the SRS airbags.Chapter 2: Keys and doors
This chapter informs you how to operate the keys, locks and windows.Chapter 3: Instruments and controls
This chapter informs you about the operation of instrument panel indica-tors and how to use the instruments and other switches.Chapter 4: Climate control
This chapter informs you how to operate the climate control.Chapter 5: Audio
This chapter informs you how to operate your audio system.Chapter 6: Interior equipment
This chapter informs you how to operate interior equipment.Chapter 7: Starting and operating
This chapter informs you how to start and operate your SUBARU.Chapter 8: Driving tips
This chapter informs you how to drive your SUBARU in various condi-tions and explains some safety tips on driving.Chapter 9: In case of emergency
This chapter informs you what to do if you have a problem while driving,
such as a flat tire or engine overheating.Chapter 10: Appearance care
This chapter informs you how to keep your SUBARU looking good.

1
Seat, seatbelt and SRS airbags1-9
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CONTINUED –
Seat heater (if equipped)
CAUTION
Use of the seat heater for a long period of time while the
engine is not running can cause battery discharge. Do not put anything on the seat which insulates against heat,
such as a blanket, cushion, or similar items. This may cause theseat heater to overheat. When cleaning the seat, do not use benzine, paint thinner, or
any similar materials.
The seat heater operates when the ignition switch is either in the “ACC”
or “ON” position.
HB1073BB
HB1093BB
To turn on the seat heater, push the “LO” or “HI” position on the switch,
as desired, depending on the temperature. Selecting the “HI” position
will cause the seat to heat up quicker. LO: Normal heating
HI: Rapid heating
The indicator located on the switch comes on when the seat heater is in
operation. When the vehicle ’s interior is warmed enough or before you
leave the vehicle, be sure to turn the switch off.

7
Starting and operating7-15
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When it is necessary to reduce vehicle speed due to slow traffic, turn-
ing corners, or driving up steep hills, downshift to a lower gear before
the engine starts to labor.
On steep downgrades, downshift the transmission to 4th, 3rd or 2nd
gear as necessary; this helps to maintain a safe speed and to extendbrake pad life.
In this way, the engine provides a braking effect. Remember, if you
“ride”
(over use) the brakes while descending a hill, they may over-
heat and not work properly.
The engine may, on rare occasions, knock when the vehicle rapidly
accelerates or rapidly pulls away from a standstill. This phenomenondoes not indicate a fault.
Automatic transmission (Brighton, L, Outback)
WARNING
Do not shift from the “P” or “N” position into the “D”, “3”, “2”,
“1” or “R” position while depressing the accelerator pedal. This
may cause the vehicle to jump forward or backward.
CAUTION
Shift into the “P” or “R” position only after the vehicle is com-
pletely stopped. Shifting while the vehicle is moving may cause
damage to the transmission. Do not race the engine for more than five seconds in any posi-
tion except the “N” or “P” position when the brake is set or the
tires are on blocks. This may cause the automatic transmissionfluid to overheat. Avoid shifting from one of the forward driving positions into
the “R” position or vice versa until the vehicle has completely
stopped. Such shifting may cause damage to the transmission.
The automatic transmission is electronically controlled with 4-forward

7
Starting and operating7-31
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Power steering
CAUTION
Do not hold the steering wheel at the fully locked position left or right for more than five seconds. This may damage the powersteering pump.
The power steering system operates only when the engine is running.
If you lose power steering assist because the engine stops or the system
fails to function, you can steer but it will take much more effort. NOTE Right after the engine has been started and before it has warmed up, you may hear a noise coming from areas adjacent to the powersteering pump which is located at the right-front area of the enginecompartment. This noise is normal. It does not indicate power steer-ing system trouble. Braking Braking tips
WARNING
Never rest your foot on the brake pedal while driving. This can
cause dangerous overheating of the brakes and needless wearon the brake pads and linings.
When the brakes get wet
When driving in rain or after washing the vehicle, the brakes may get
wet. As a result, brake stopping distance will be longer. To dry the
brakes, drive the vehicle at a safe speed while lightly depressing thebrake pedal to heat up the brakes. Use of engine braking
Remember to make use of engine braking in addition to foot braking.

7-32When descending a grade, if only the foot brake is used, the brakes
may start working improperly because of brake fluid overheating,
caused by overheated brake pads. To help prevent this, shift into a
lower gear to get stronger engine braking.
Braking when a tire is punctured
Do not depress the brake pedal suddenly when a tire is punctured.
This could cause a loss of control of the vehicle. Keep driving straight
ahead while gradually reducing speed. Then slowly pull off the roadto a safe place.
Brake system Two separate circuits
Your vehicle has two separate circuit brake systems. Each circuit
works diagonally across the vehicle. If one circuit of the brake system
should fail, the other half of the system still works. If one circuit fails,
the brake pedal will go down much closer to the floor than usual and
you will need to press it down much harder. And a much longer dis-
tance will be needed to stop the vehicle. Brake booster
The brake booster uses engine manifold vacuum to assist braking
force. Do not turn off the engine while driving because that will turn off
the brake booster, resulting in poor braking power.The brakes will continue to work even when the brake booster com-
pletely stops functioning. If this happens, however, you will have to
push the pedal much harder than normal and the braking distance
will increase.

8
Driving tips8-39
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nearest SUBARU dealer. n
Driving on grades
Before going down a steep hill, slow down and shift into lower gear
(if necessary, use 1st gear) in order to utilize the engine braking effect
and prevent overheating of your vehicle ’s brakes. Do not make sud-
den downshifts. When driving uphill in hot weather, the air conditioner may turn off
automatically to protect the engine from overheating. When driving uphill in hot weather, pay attention to the water tem-
perature gauge pointer (for all vehicles) and AT OIL TEMP warning
light (for AT vehicles) since the engine and transmission are relatively
prone to overheating under these conditions. If the water temperature
gauge pointer approaches the OVERHEAT zone or the AT OIL TEMP
warning light illuminates, immediately switch off the air conditioner
and stop the vehicle at the nearest safe place. Refer to the “Engine
overheat” section in chapter 9, and “Warning and indicator lights ”
section in chapter 3. If your vehicle has an automatic transmission, avoid using the
accelerator pedal to stay stationary on an uphill slope instead of usingthe parking brake or foot brake. That may cause the transmission fluidto overheat. Also, if your vehicle is equipped with an automatic trans-mission, avoid driving with the gear selector lever in “D” when towing
a heavy trailer to prevent fluid overheating. A lower gear should beused. n Parking on a grade
Always block the wheels under both vehicle and trailer when parking.
Apply the parking brake firmly. You should not park on a hill or slope.But if parking on a hill or slope cannot be avoided, you should takethe following steps:
1. Apply the brakes and hold the pedal down.
2. Have someone place wheel blocks under both the vehicle and
trailer wheels.
3. When the wheel blocks are in place, release the regular brakes
slowly until the blocks absorb the load.
4. Apply the regular brakes and then apply the parking brake; slowly

9
In case of emergency
If you park your vehicle in an emergency 9-2. . . . . . . . . . . . . . . . . . . . . . . .
Temporary spare tire 9-3
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Flat tires 9-4
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Jump starting 9-12
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Engine overheating 9-15
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Towing 9-16
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Moonroof — if the moonroof cannot be closed 9-24 . . . . . . . . . . . . . . . .
Maintenance tools 9-25
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Jack and jack handle 9-26
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9
In case of emergency9-15
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Engine overheating
WARNING
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 coolant is under pressure. Removing the cap while the engineis 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 asafe place. If steam is coming from the engine compartment
Turn the engine off and get everyone away from the vehicle until itcools 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 compartment.
Confirm that the cooling fan is turning. If the fan is not turning, im-
mediately turn the engine off and contact your authorized dealer for
repair.
3. After the engine coolant temperature has dropped, turn off the en-gine.
If the temperature gauge stays at the overheated zone, turn the en-
gine 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 coolant up to the
“MAX” mark.
5. If there is no coolant in the reserve tank, add coolant 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