2010 Subaru Impreza Owners Manual

Maintenance and service 11-13

shortened to that of the mixing coolant.

. Do not splash the engine coolant over painted parts. The alcohol contained in the engine coolant may damage the paint surface.

& Cooling fan, hose and con-

nections

Your vehicle employs an electric cooling fan which is thermostatically controlled to operate when the engine coolant reaches a specific temperature. If the radiator cooling fan does not operate even when the following condition occurs, the cooling fan circuit may be defective. . For turbo models, the engine coolant temperature gauge exceeds the normal operating range. Refer to “Temperature gauge” F3-10. . For non-turbo models, the coolant temperature high warning light blinks or to “Coolant illuminates in RED. Refer temperature low indicator light (non-turbo models)/Coolant temperature high warn- ing light (non-turbo models)” F3-20. Check the fuse and replace it if necessary. Refer to “Fuses” F11-46 and “Fuse panel located in the engine compartment” F12- 8.

– CONTINUED –

11-14 Maintenance and service

If the fuse is not blown, have the cooling system checked by your SUBARU dealer. If frequent addition of coolant is neces- sary, there may be a leak in the engine cooling system. It is recommended that the cooling system and connections be checked for leaks, damage, or looseness.

& Engine coolant ! Checking the coolant level

WARNING

Never attempt to remove the radia- tor cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray of boil- ing hot coolant when the cap is removed.

1) 2)

“FULL” level mark “LOW” level mark

Check the coolant level at each fuel stop. 1. Check the coolant level on the outside of the reservoir while the engine is cool. 2. If the level is close to or lower than the “LOW” level mark, add coolant up to the “FULL” level mark. If the reserve tank is empty, remove the radiator cap and refill as required.

3. After refilling the reserve tank and the radiator, reinstall the cap and check that the rubber gaskets inside the radiator cap are in the proper position.

WARNING

Never attempt to remove the radia- tor cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray of boil- ing hot coolant when the cap is removed.

CAUTION

. Be careful not

to spill engine coolant when adding it. If coolant touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If engine coolant gets on the exhaust pipe, be sure to wipe it off.

. Do not splash the engine coolant over painted parts. The alcohol contained in the engine coolant may damage the paint surface.

! Changing the coolant

WARNING

Never attempt to remove the radia- tor cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray of boil- ing hot coolant when the cap is removed.

Always add genuine SUBARU coolant and genuine SUBARU cooling system conditioner whenever the coolant is re- placed.

Maintenance and service 11-15

4.

Install the under cover.

Change the engine coolant and add genuine SUBARU cooling system condi- tioner using the following procedures according to the maintenance schedule. 1. Remove the under cover.

2. Place a proper container under the drain plug and loosen the drain plug. 3. Loosen the radiator cap to drain the coolant from the radiator. Then drain the coolant from the reserve tank. Tighten the drain plug securely. NOTE (Turbo models only) The cap (without tabs) on top of the radiator does not need to be removed. To add coolant, remove the cap (with tabs) on the coolant tank on top of the engine.

Non-turbo models 1)

Fill up to this level

Turbo models 1)

Fill up to this level

– CONTINUED –

11-16 Maintenance and service

5. Slowly pour the coolant and fill up to just below the filler neck, allowing enough room to add genuine SUBARU cooling system conditioner in the radiator. Add genuine SUBARU cooling system condi- tioner until the coolant level reaches the filler neck. Do not pour the coolant too quickly, as this may lead to insufficient air bleeding and trapped air in the system.

Guideline of coolant quantity (including coolant in reservoir tank):

Non-turbo models:

MT: 7.2 US qt (6.8 liters, 6.0 Imp qt) AT: 7.1 US qt (6.7 liters, 5.9 Imp qt)

Turbo models except WRX STI:

MT: 7.9 US qt (7.5 liters, 6.6 Imp qt) AT: 7.8 US qt (7.4 liters, 6.5 Imp qt)

WRX STI:

MT: 8.1 US qt (7.7 liters, 6.8 Imp qt)

1) 2)

“FULL” level mark “LOW” level mark

CAUTION

. Be careful not

to spill engine coolant when adding it. If coolant touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If engine coolant gets on the exhaust pipe, be sure to wipe it off.

. Do not splash the engine coolant over painted parts. The alcohol contained in the engine coolant may damage the paint surface.

6. Pour the coolant and fill to the reser- voir tank’s “FULL” level mark.

7. Put the radiator cap back on and tighten firmly. At this time, make sure that the rubber gasket in the radiator cap is correctly in place. 8. Start and race the engine at 2,000 to 3,000 rpm for 5 to 6 times within 40
seconds. 9. Stop the engine and wait until the coolant cools down (122 to 1408F [50 to 608C]). If there is any loss of coolant, add coolant to the radiator’s filler neck and to the reserve tank’s “FULL” level. 10. Put the radiator cap and reservoir cap back on and tighten firmly.

Air cleaner element

WARNING

Do not operate the engine with the air cleaner element removed. The air cleaner element not only filters intake air but also stops flames if the air the engine backfires. cleaner element installed when the engine backfires, you could be burned.

is not

If

Maintenance and service 11-17

the air

case. 3. Loosen the screw of the clamp and pull the air cleaner case. 4. Unsnap the two clips holding the air cleaner case cover.

intake boot out of

& Replacing the air cleaner

element

Replace the air cleaner element according to the maintenance schedule in the “Warranty and Maintenance Booklet”. Un- der extremely dusty conditions, replace it more frequently. It is recommended that you always use genuine SUBARU parts. ! Non-turbo models

CAUTION

When replacing the air cleaner ele- ment, use a genuine SUBARU air cleaner element. If it is not used, there is the possibility of causing a negative effect to the engine.

The air cleaner element functions as a filter screen. When the element is perfo- rated or removed, engine wear will be excessive and engine life shortened. It is not necessary to clean or wash the air cleaner element.

1) Connector 2) Clip 3) Clamp 4) Air intake boot 5) Clip

1. Unplug the connector that is attached to the top of the air cleaner case. 2. Detach the connector cable from the clip on the right side on the air cleaner

5. Open the air cleaner case and remove the air cleaner element. 6. Clean the inside of the air cleaner case and case cover with a damp cloth and install a new air cleaner element.

– CONTINUED –

11-18 Maintenance and service

! Turbo models

2. Unplug the connector that is attached to the top of the air cleaner case. 3. Unsnap the two clips holding the air cleaner case cover.

7. To install the air cleaner case, insert the three projections on the air cleaner case into the slits on the air cleaner case cover. 8.

Install in the reverse order of removal.

1. Use a screwdriver to undo the clips on the air intake duct, then remove the air intake duct.

4. Open the air cleaner case and remove the air cleaner element. 5. Clean the inside of the air cleaner case and case cover with a damp cloth and install a new air cleaner element.

1) Connector 2) Clip

If

6. the air cleaner case has been removed, insert the three projections on the air cleaner case into the slits on the air cleaner case cover. 7.

Install in the reverse order of removal.

Spark plugs

& Recommended spark plugs

Maintenance and service 11-19

Non-turbo models: FR5AP-11 (NGK)

Turbo models:

SILFR6A (NGK)

It may be difficult to replace the spark plugs. It is recommended that you have the spark plugs replaced by your SUBARU dealer. The spark plugs should be replaced according to the maintenance schedule in the “Warranty and Maintenance Book- let”.

CAUTION

. When disconnecting the spark plug cables, always grasp the spark plug cap, not the cables.

. Make sure the cables are re-

placed in the correct order.

11-20 Maintenance and service

Drive belts

Front side belt

1) Power steering oil pump pulley 2) 3) Alternator pulley 4) Air conditioner compressor pulley 5) Rear side belt 6) Crank pulley A)

22 lbf (98 N, 10 kgf)

CAUTION

The front side belt, which runs in conjunction with the following com- ponents, must be used within the specified deflection. . Power steering oil pump pulley . Alternator pulley . Crank pulley

Check the deflection of the front side belt and if there is any loosen- ess, cracks, wear or unusual noise on the front side belt, contact your SUBARU dealer. Continuing to use the vehicle with the belt outside of the specification may cause the engine to malfunc- tion and the above components to malfunction.

To check the deflection of the front side belt, place a straightedge (ruler) across two adjacent pulleys (alternator pulley and crank pulley) and apply a force of 22 lbf (98 N, 10 kgf) midway between the pulleys by using a spring scale. The belt deflec- tion should be the amount specified. If the front side belt is loose, cracked or worn, contact your SUBARU dealer.

in (mm)

Deflection

New belt 0.28 – 0.35
(7.0 – 9.0)

Used belt 0.35 – 0.43
(9.0 – 11.0)

The rear side belt is a stretch-type belt, therefore the deflection does not need to be checked. If there are cracks or wear confirmed on the belts and a squeaking noise is heard from them, contact your SUBARU dealer.

Manual transmission oil & Checking the oil level

Non-turbo models 1) Yellow handle

Turbo models except WRX STI

Maintenance and service 11-21

SAE viscosity No. and applicable tempera- ture

Check the oil level monthly. 1. Park the vehicle on a level surface and stop the engine. 2. Pull out the level gauge, wipe it clean, and insert it again.

CAUTION

Be careful not to spill manual trans- If oil mission oil when adding it. touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If oil gets on the exhaust pipe, be sure to wipe it off.

NOTE There is no transmission oil gauge for WRX STI. & Recommended grade and

level

viscosity

1) Upper level Lower level 2)

3. Pull out the level gauge again and check the oil level on it. If it is below the lower through the level gauge hole to bring the level up to the upper level.

level, add oil

Each oil manufacturer has its own base oils and additives. Never use different brands together.

Oil grade:

API classification GL-5

11-22 Maintenance and service

Automatic transmission fluid & Checking the fluid level The automatic transmission fluid expands largely as its temperature rises; the fluid level differs according to fluid temperature. Therefore, there are two different scales for checking the level of hot fluid and cold fluid on the level gauge. Though the fluid level can be checked without warming up the fluid on the “COLD” is recommended to check the fluid level when the fluid is at operating temperature. ! Checking the fluid level when the

range,

it

fluid is hot

1. Drive the vehicle several miles to raise the temperature of the transmission fluid up to normal operating temperature; 158
to 1768F (70 to 808C) is normal. 2. Park the vehicle on a level surface and set the parking brake. 3. First shift in each position. Then shift it in the “P” position, and run the engine at idling speed.

the select

lever

4. Pull out the level gauge and check the fluid level on the gauge. If it is below the lower level on the “HOT” range, add the recommended automatic transmission fluid up to the upper level.

! Checking the fluid level when the

fluid is cold

When the fluid level has to be checked without time to warm up the automatic transmission, check to see that the fluid level is between the lower level and upper level on the “COLD” range. If it is below that range, add fluid up to the upper level. Be careful not to overfill.

CAUTION

to spill automatic Be careful not transmission fluid when adding it. If automatic transmission fluid touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If automatic transmission fluid gets on the exhaust pipe, be sure to wipe it off.

1) Yellow handle

1) HOT range 2) COLD range 3) Upper level Lower level 4)

& Recommended fluid

Use one of the following types of auto- matic transmission fluid.

SUBARU ATF IDEMITSU ATF HP

NOTE For optimum transmission perfor- mance, only use the automatic trans- mission fluid that is recommended and provided by SUBARU. If the recommended automatic trans- mission fluid is unavailable, Dexron III may be temporarily used. If the Dexron III is used continuously there will be a noticeable increase in the vibration and noise from the automatic transmission.

Maintenance and service 11-23

Front differential gear oil (AT models) & Checking the oil level

1) Yellow handle

1. Park the vehicle on a level surface and stop the engine. 2. Pull out the level gauge, wipe it clean, and insert it again.

1) Upper level Lower level 2)

3. Pull out the level gauge again and check the oil level on it. If it is below the lower level, add oil to bring the level up to the upper level.

CAUTION

Be careful not to spill front differ- ential gear oil when adding it. If oil touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If oil gets on the exhaust pipe, be sure to wipe it off.

– CONTINUED –

11-24 Maintenance and service

& Recommended grade and

viscosity

Each oil manufacturer has its own base oils and additives. Never use different brands together.

Oil grade:

API classification GL-5

Rear differential gear oil & Checking the gear oil level

3) Oil level

Remove the plug from the filler hole and check the oil level. The oil level should be kept even with the bottom of the filler hole. If the oil level is below the bottom edge of the hole, add oil through the filler hole to raise the level.

SAE viscosity No. and applicable tempera- ture

Except WRX STI 1) Filler hole 2) Drain hole

If

the oil

filler hole. is below the bottom edge of the hole, add oil through the filler hole to raise the level.

level

CAUTION

. Be careful not to spill rear differ- ential gear oil when adding it. If rear differential gear oil touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If rear differential gear oil gets on the exhaust pipe, be sure to wipe it off.

. If the vehicle requires frequent refilling, there may be an oil leak. If you suspect a problem, have the vehicle checked at your SUBARU dealer.

Thermo switch

WRX STI 1) 2) Drain hole 3) Oil level

Remove the thermo switch from the filler hole and check the oil level. The oil level should be kept even with the bottom of the

Maintenance and service 11-25

& Recommended grade and

viscosity

Each oil manufacturer has its own base oils and additives. Never use different brands together.

Oil grade:

API classification GL-5

SAE viscosity No. and applicable tempera- ture

11-26 Maintenance and service

Power steering fluid & Checking the fluid level

the reservoir

The power steering fluid expands greatly as its temperature rises; the fluid level differs according to fluid temperature. Therefore, tank has two different checking ranges for hot and cold fluids. Check the power steering fluid level monthly. 1. Park the vehicle on a level surface, and stop the engine.

level

the oil

2. Check the fluid level of the reservoir tank. When the fluid is hot after the vehicle has been run: Check that is between “HOT MIN” and “HOT MAX” on the surface of the reservoir tank. When the fluid is cool before the vehicle is run: Check that the oil is between “COLD MIN” and “COLD MAX” on the surface of the reservoir tank. than the 3. applicable “MIN” line, add the recom- mended fluid as necessary to bring the level between the “MIN” and “MAX” line. If the fluid level is extremely low, it may indicate possible leakage. Consult your SUBARU dealer for an inspection.

the fluid level

is lower

level

If

WARNING

Be careful not because the fluid may be hot.

to burn yourself

CAUTION

. When power steering fluid is being added, use only clean fluid, and be careful not to allow any dirt into the tank. And never use different brands together.

. Avoid spilling fluid when adding

it in the tank.

. Be careful not

to spill power steering fluid when adding it. If power steering fluid touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If power steering fluid gets on the exhaust pipe, be sure to wipe it off.

& Recommended fluid

Use one of the following types of auto- matic transmission fluid.

SUBARU ATF “Dexron III” Type Automatic Transmis- sion Fluid

Brake fluid & Checking the fluid level

1) 2)

“MAX” level mark “MIN” level mark

Check the fluid level monthly. Check the fluid level on the outside of the reservoir. If the level is below “MIN”, add the recommended brake fluid to “MAX”. Use only brake fluid from a sealed container.

WARNING

. Never let brake fluid contact your eyes because brake fluid can be harmful If brake fluid gets in your eyes, immedi- ately flush them thoroughly with

to your eyes.

Maintenance and service 11-27

clean water. For safety, when performing this work, wearing eye protection is advisable.

. Brake fluid absorbs moisture from the air. Any absorbed moist- ure can cause a dangerous loss of braking performance.

. If the vehicle requires frequent refilling, there may be a leak. If you suspect a problem, have the vehicle checked at your SUBARU dealer.

CAUTION

. When adding brake fluid, be care- ful not to allow any dirt into the reservoir.

. Never splash the brake fluid over painted surfaces or rubber parts. Alcohol contained in the brake fluid may damage them.

. Be careful not to spill brake fluid when adding it. If brake fluid touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If brake fluid gets on the exhaust pipe, be sure to wipe it off.

– CONTINUED –

Clutch fluid (MT models) & Checking the fluid level

11-28 Maintenance and service

& Recommended brake fluid

Use one of the following types of fluid.

– Genuine SUBARU brake fluid – FMVSS No. 116, fresh DOT 3 or DOT 4
brake fluid

CAUTION

Never use different brands of brake fluid together. Also, avoid mixing DOT 3 and DOT 4 brake fluids even if they are the same brand.

Check the fluid level on the outside of the reservoir. If the level is below “MIN” level mark, add the recommended clutch fluid to “MAX” level mark. Use only clutch fluid from a sealed container.

WARNING

Never let clutch fluid contact your eyes because clutch fluid can be harmful to your eyes. If clutch fluid gets in your eyes, immediately flush them thoroughly with clean water. For safety, when performing this work, wearing eye protection is

advisable.

CAUTION

. Clutch fluid absorbs moisture from the air. Any absorbed moist- ure can cause improper clutch operation.

. If the vehicle requires frequent refilling, there may be a leak. If you suspect a problem, have the vehicle checked at your SUBARU dealer.

. When clutch fluid is added, be careful not to allow any dirt into the tank.

. Never splash the clutch fluid over painted surfaces or rubber parts. Alcohol contained in the clutch fluid may damage them.

. Be careful not to spill clutch fluid when adding it. If clutch fluid touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If clutch fluid gets on the exhaust pipe, be sure to wipe it off.

Maintenance and service 11-29

erly. . You might feel that the brake pedal is applied by lighter force and gener- ates a greater braking force. . You might hear clicking (knocking) sounds around brake pedal.

Brake assist is not a system that brings more braking ability to the vehicle beyond its breaking capability.

& Recommended clutch fluid

Brake booster

Use one of the following types of fluid.

– Genuine SUBARU brake fluid – FMVSS No. 116, fresh DOT 3 or DOT 4
brake fluid

CAUTION

Never use different brands of clutch fluid together. Also, avoid mixing DOT 3 and DOT 4 brake fluids even if they are the same brand.

If the brake booster does not operate as described in the following, have it checked by your SUBARU dealer. 1. With the engine off, depress the brake pedal several times, applying the same pedal force each time. The distance the pedal travels should not vary. 2. With the brake pedal depressed, start the engine. The pedal should move slightly down to the floor. 3. With the brake pedal depressed, stop the engine and keep the pedal depressed for 30 seconds. The pedal height should not change. 4. Start the engine again and run for approximately one minute then turn it off. Depress the brake pedal several times to check the brake booster. The brake booster operates properly if the pedal stroke decreases with each depression.

NOTE For vehicles equipped with the brake assist system, when you depress the brake pedal strongly or suddenly, the following phenomena occur. However, even though these occur, they do not indicate any malfunctions, and the brake assist system is operating prop-

11-30 Maintenance and service

Brake pedal

Check the brake pedal free play and reserve distance according to the main- tenance schedule in the “Warranty and Maintenance Booklet”.

& Checking the brake pedal

free play

& Checking the brake pedal

reserve distance

1) More than 2.56 in (65 mm)

Depress the pedal with a force of approxi- mately 66 lbf (294 N, 30 kgf) and measure the distance between the upper surface of the pedal pad and the floor. When the measurement is smaller than the specification, or when the pedal does not operate smoothly, contact with your SUBARU dealer.

1)

0.02 – 0.08 in (0.5 – 2.0 mm)

Stop the engine and firmly depress the brake pedal several times. Lightly pull the brake pedal up with one finger to check the free play with a force of less than 2 lbf (10 N, 1 kgf). If the free play is not within proper specification, contact your SUBARU deal- er.

Clutch pedal (MT models)

Check the clutch pedal free play and reserve distance according to the main- tenance schedule in the “Warranty and Maintenance Booklet”.

& Checking the clutch function Check the clutch engagement and disen- gagement. 1. With the engine idling, check that there are no abnormal noises when the clutch pedal is depressed, and that shifting into 1st or reverse feels smooth. 2. Start the vehicle by releasing the pedal slowly to check that the engine and transmission smoothly couple without any sign of slippage.

& Checking the clutch pedal

free play

1)

0.16 – 0.51 in (4.0 – 13.0 mm)

Lightly depress the clutch pedal down with your finger until you feel resistance, and check the free play. If the free play is not within proper specification, contact your SUBARU deal- er.

the Hill start assist system the following

Hill start assist system (MT models – if equipped) Ensure that operates properly under circumstances: 1. Stop the vehicle on an uphill grade by depressing the brake pedal and clutch pedal, with the engine running. 2. Make sure that the vehicle does not move backward even after the brake pedal is released. 3. Then make sure the vehicle starts climbing the grade by following the normal starting procedures.

If the Hill start assist system does not operate as described above, contact with your SUBARU dealer.

Maintenance and service 11-31

Replacement of brake pad and lining

The right front disc brake and the right rear disc brake have audible wear indicators on the brake pads. If the brake pads wear close to their service limit, the wear indicator makes a very audible scraping noise when the brake pedal is applied. If you hear this scraping noise each time you apply the brake pedal, have the brake pads serviced by your SUBARU dealer as soon as possible.

CAUTION

If you continue to drive despite the scraping noise from the audible it will brake pad wear indicator, – CONTINUED –

11-32 Maintenance and service

result in the need for costly brake rotor repair or replacement.

range, adjust it by turning the adjusting nut located on the parking brake lever.

Parking brake stroke

Parking brake stroke:

7 – 8 notches / 45 lbf (200 N, 20.4 kgf)

WARNING

A safe location and situation should be selected for break-in driving.

CAUTION

Pulling the parking brake lever too forcefully may cause the rear wheels to lock. To avoid this, be certain to pull the lever up slowly and gently.

& Breaking-in of new brake

pads and linings

lightly. Repeat

When replacing the brake pad or lining, use only genuine SUBARU parts. After replacement, the new parts must be broken in as follows. ! Brake pad and lining While maintaining a speed of 30 to 40
mph (50 to 65 km/h), step on the brake pedal this five or more times. ! Parking brake lining 1. Drive the vehicle at a speed of approximately 22 mph (35 km/h). 2. With the parking brake release button pushed in, pull the parking brake lever SLOWLY and GENTLY (pulling with a force of approximately 33 lbf [147 N, 15
kgf]). 3. Drive the vehicle for approximately 220 yards (200 meters) in this condition. 4. Wait 5 to 10 minutes for the parking brake to cool down. Repeat this proce- dure. 5. Check the parking brake stroke. If the parking brake stroke is out of the specified

Check the parking brake stroke according to the maintenance schedule in the “Warranty and Maintenance Booklet”. When the parking brake is properly adjusted, braking power is fully applied by pulling the lever up 7 to 8 notches gently but firmly (approximately 45 lbf [200
N, 20.4 kgf]). If the parking brake lever stroke is not within the specified range, have the brake system checked and adjusted at your SUBARU dealer.

Tires and wheels & Types of tires You should be familiar with type of tires present on your vehicle. ! All season tires All season tires are designed to provide an adequate measure of traction, handling and braking performance in year-round driving including snowy and icy road conditions. However all season tires do not offer as much traction performance as winter (snow) tires in heavy or loose snow or on icy roads. All season tires are identified by “ALL SEASON” and/or “M+S” (Mud & Snow) on the tire sidewall. ! Summer tires Summer tires are high-speed capability tires best suited for highway driving under dry conditions. Summer tires are inadequate for driving on slippery roads such as on snow- covered or icy roads. If you drive your vehicle on snow-covered or icy roads, we strongly recommend the use of winter (snow) tires. When installing winter tires, be sure to replace all four tires.

! Winter (snow) tires Winter tires are best suited for driving on snow-covered and icy roads. However winter tires do not perform as well as summer tires and all season tires on roads other than snow-covered and icy roads.

& Tire pressure monitoring

system (TPMS) (if equipped) The tire pressure monitoring system pro- vides the driver with a warning message by sending a signal from a sensor that is installed in each wheel when tire pressure is severely low. The tire pressure monitor- ing system will activate only when the vehicle is driven. Also, this system may not react immediately to a sudden drop in tire pressure (for example, a blow-out caused by running over a sharp object). If you adjust the tire pressures in a warm garage and will then drive the vehicle in cold outside air, the resulting drop in tire pressures may cause the low tire pressure warning light to illuminate. To avoid this problem when adjusting the tire pressures in a warm garage, inflate the tires to pressures higher than those shown on the tire placard. Specifically, inflate them by an extra 1 psi (6.9 kPa, 0.07 kgf/cm2) for every difference of 108F (5.68C) between the temperature in the garage and the

Maintenance and service 11-33

temperature outside. By way of example, the following table shows the required tire pressures that correspond to various out- side temperatures when the temperature in the garage is 608F (15.68C). Example: Ti r e s iz e : P2 05/5 5R 16 89 V an d P205/50R17 88V Standard tire pressures: Front: 33 psi (230 kPa, 2.3 kgf/cm2) Rear: 32 psi (220 kPa, 2.2 kgf/cm2) Garage temperature: 608F (15.68C)

Outside

temperature

Adjusted pressure [psi (kPa, kgf/cm2)] Front Rear

308F (−18C)

36 (250, 2.5)

35 (240, 2.4)

108F (−128C)

(265, 2.65) −108F (−238C) 40 (280, 2.8)

38

37

(255, 2.55) 39 (270, 2.7)

If the low tire pressure warning light illuminates when you drive the vehicle in cold outside air after adjusting the tire pressures in a warm garage, re-adjust the tire pressures using the method described above. Then, increase the vehicle speed to at least 20 mph (32 km/h) and check to see that the low tire pressure warning light turns off a few minutes later. If the low tire pressure warning light does not turn off,

– CONTINUED –

11-34 Maintenance and service

the tire pressure monitoring system may not be functioning normally. In this event, go to a SUBARU dealer to have the system inspected as soon as possible. While the vehicle is driven, friction be- tween tires and the road surface causes the tires to warm up. After illumination of the low tire pressure warning light, any increase in the tire pressures caused by an increase in the outside air temperature or by an increase in the temperature in the tires can cause the low tire pressure warning light to turn off. System resetting is necessary when the wheels are changed (for example, a switch to snow tires) and new TPMS valves are installed on the newly fitted wheels. Have this work performed by a SUBARU dealer following wheel replace- ment. It may not be possible to install TPMS valves on certain wheels that are on the market. Therefore, if you change the wheels (for example, a switch to snow tires), use wheels that have the same part number as the standard-equipment wheels. Without four operational TPMS valve/sensors on the wheels, the TPMS will not fully function and the warning light on the combination meter will illuminate steadily after blinking for approximately

one minute. When a tire is replaced, adjustments are necessary to ensure continued normal operation of the tire pressure monitoring system. As with wheel replacement, there- fore, you should have the work performed by a SUBARU dealer.

WARNING

If the low tire pressure warning light does not illuminate briefly after the ignition switch is turned ON or the light illuminates steadily after blink- ing for approximately one minute, you should have your Tire Pressure Monitoring System checked at a SUBARU dealer as soon as possi- ble. If this light illuminates while driving, never brake suddenly and keep driving straight ahead while gradu- ally reducing speed. Then slowly pull off the road to a safe place. Otherwise an accident involving serious vehicle damage and serious personal injury could occur. If illuminates while driving after adjusting the tire pres- sure, a tire may have significant damage and a fast leak that causes the tire to lose air rapidly. If you have

this light still

a flat tire, replace it with a spare tire as soon as possible. When a spare tire is mounted or a wheel rim is replaced without the original pressure sensor/transmitter being transferred, the low tire pres- sure warning light will illuminate steadily after blinking for approxi- mately one minute. This indicates the TPMS is unable to monitor all four road wheels. Contact your SUBARU dealer as soon as possible for tire and sensor replacement and/ or system resetting. the light illuminates steadily after blinking for approximately one minute, promptly contact a SUBARU dealer to have the system inspected.

If

& Tire inspection Check on a daily basis that the tires are free from serious damage, nails, and stones. At the same time, check the tires for abnormal wear. Contact your SUBARU dealer ately if you find any problem. NOTE . When the wheels and tires strike curbs or are subjected to harsh treat- ment as when the vehicle is driven on a

immedi-

rough surface, they can suffer damage that cannot be seen with the naked eye. This type of damage does not become evident until time has passed. Try not to drive over curbs, potholes or on other rough surfaces. If doing so is unavoidable, keep the vehicle’s speed down to a walking pace or less, and approach the curbs as squarely as possible. Also, make sure the tires are not pressed against the curb when you park the vehicle. . If you feel unusual vibration while driving or find it difficult to steer the vehicle in a straight line, one of the tires and/or wheels may be damaged. Drive slowly to the nearest authorized SUBARU dealer and have the vehicle inspected.

& Tire pressures and wear Maintaining the correct tire pressures helps to maximize the tires’ service lives and is essential for good running perfor- mance. Check and, if necessary, adjust the pressure of each tire (including the spare) at least once a month (for example, during a fuel stop) and before any long journey.

Check the tire pressures when the tires are cold. Use a pressure gauge to adjust the tire pressures to the values shown on the tire placard. The tire placard is located on the door pillar on the driver’s side. Driving even a short distance warms up the tires and increases the tire pressures. Also, the tire pressures are affected by the outside temperature. It is best to check tire pressure outdoors before driving the vehicle. When a tire becomes warm, the air inside it expands, causing the tire pressure to increase. Be careful not to mistakenly release air from a warm tire to reduce its pressure.

Maintenance and service 11-35

NOTE . The air pressure in a tire increases by approximately 4.3 psi (30 kPa, 0.3
kgf/cm2) when the tire becomes warm. . The tires are considered cold when the vehicle has been parked for at least three hours or has been driven less than one mile (1.6 km).

WARNING

Do not let air out of warm tires to adjust pressure. Doing so will result in low tire pressure.

Incorrect tire pressures detract from con- trollability and ride comfort, and they cause the tires to wear abnormally.

– CONTINUED –

11-36 Maintenance and service

. Correct evenly)

tire pressure (tread worn

. Abnormally low tire pressure (tread worn at shoulders)

. Abnormally high tire pressure (tread worn in center)

Roadholding is good, and steering is responsive. Rolling resistance is low, so fuel consumption is also lower.

Rolling resistance is high, so fuel con- sumption is also higher.

is poor. Also,

the tire Ride comfort magnifies the effects of road-surface bumps and dips, possibly resulting in vehicle damage.

If the tire placard shows tire pressures for the vehicle when fully loaded, adjust the tire pressures to the values that match current loading conditions.

WARNING

Driving at high speeds with exces- sively low tire pressures can cause the tires to deform severely and to rapidly become hot. A sharp in- crease in temperature could cause tread separation, and destruction of

the tires. The resulting loss of vehicle control could lead to an accident.

& Wear indicators

that

& Wheel balance Each wheel was correctly balanced when your vehicle was new, but the wheels will become unbalanced as the tires become worn during use. Wheel imbalance causes the steering wheel to vibrate slightly at certain vehicle speeds and detracts from the vehicle’s straight-line stability. It can also cause steering and suspension sys- tem problems and abnormal tire wear. If you suspect the wheels are not correctly balanced, have them checked and adjusted by your SUBARU dealer. Also have them adjusted after tire repairs and after tire rotation. NOTE Loss of correct wheel alignment* causes the tires to wear on one side and reduces the vehicle’s running stability. Contact your SUBARU dealer if you notice abnormal tire wear. *: The suspension system is designed to hold each wheel at a certain alignment (relative to the other wheels and to the road) for optimum straight-line stability and cornering perfor- mance.

1) New tread 2) Worn tread 3)

Tread wear indicator

Each tire incorporates a tread wear indicator, which becomes visible when the depth of the tread grooves decreases to 0.063 in (1.6 mm). A tire must be replaced when the tread wear indicator appears as a solid band across the tread.

WARNING

When a tire’s tread wear indicator becomes visible, the tire is worn beyond the acceptable limit and must be replaced immediately. With a tire in this condition, driving at high speeds in wet weather can

Maintenance and service 11-37

cause the vehicle to hydroplane. The resulting loss of vehicle control can lead to an accident.

NOTE For safety, inspect tire tread regularly and replace the tires before their tread wear indicators become visible.

& Tire rotation direction mark

Example of tire rotation direction mark 1)

Front

the tire has the rotation direction the tire rotation direction

If specification, mark is placed on its sidewall. When you install a tire that has the tire rotation direction mark, install the tire with – CONTINUED –

11-38 Maintenance and service

the direction mark facing forward.

& Tire rotation

Vehicles equipped with 4 non-unidirec- tional tires 1)

Front

& Tire replacement The wheels and tires are important and integral parts of your vehicle’s design; they cannot be changed arbitrarily. The tires fitted as standard equipment are optimally matched to the characteristics of the vehicle and were selected to give the best possible combination of running performance, ride comfort, and service life. It is essential for every tire to have a size and construction matching those shown on the tire placard and to have a speed symbol and load index matching those shown on the tire placard. Using tires of a non-specified size detracts from controllability, ride comfort, braking performance, speedometer accuracy and odometer accuracy. It also creates incor- rect body-to-tire clearances and inappro- priately changes the vehicle’s ground clearance. All four tires must be the same in terms of manufacturer, brand (tread pattern), con- struction, and size. You are advised to replace the tires with new ones that are identical to those fitted as standard equip- ment. For safe vehicle operation, SUBARU recommends replacing all tires at the same time.

four

Vehicles equipped with unidirectional tires 1)

Front

Tire wear varies from wheel to wheel. To maximize the life of each tire and ensure that the tires wear uniformly, it is best to rotate the tires every 7,500 miles (12,000
km). Move the tires to the positions shown in the illustration each time they are rotated. Replace any damaged or unevenly worn tires at tire rotation, adjust the tires pressures and make sure the wheel nuts are correctly tightened. After driving approximately 600 miles (1,000 km), check the wheel nuts again and retighten any nut that has become loose.

rotation. After

the time of

Maintenance and service 11-39

WARNING

WARNING

Aluminum wheels

. All four tires must be the same in terms of manufacturer, brand (tread pattern), construction, de- gree of wear, speed symbol, load index and size. Mixing tires of different types, sizes or degrees of wear can result in damage to vehicle’s powertrain. Use of dif- ferent types or sizes of tires can also dangerously reduce con- trollability and braking perfor- mance and can lead to an acci- dent.

. Use only radial tires. Do not use radial tires together with belted bias tires and/or bias-ply tires. Doing so can dangerously re- duce controllability, resulting in an accident.

Use only those wheels that are specified for your vehicle. Wheels not meeting specifications could interfere with brake caliper opera- tion and may cause the tires to rub against the wheel well housing dur- ing turns. The resulting loss of vehicle control could lead to an accident.

NOTE When any of the wheels are removed and replaced for tire rotation or to change a flat tire, always check the tightness of the wheel nuts after driv- ing approximately 600 miles (1,000 km). If any nut is loose, tighten it to the specified torque.

Aluminum wheels can be scratched and damaged easily. Handle them carefully to maintain their appearance, performance, and safety. . When any of the wheels are removed and replaced for tire rotation or to change a flat tire, always check the tightness of the wheel nuts after driving approximately 600 miles (1,000 km). If any nut is loose, tighten it to the specified torque. . Never apply oil to the threaded parts, wheel nuts, or the wheel. . Never let the wheel rub against sharp protrusions or curbs. . When wheel nuts, balance weights, or the center cap is replaced, be sure to replace them with genuine SUBARU parts designed for aluminum wheels.

tapered surface of

& Wheel replacement When replacing wheels due, for example, to damage, make sure the replacement wheels match the specifications of the wheels that are fitted as standard equip- ment. Replacement wheels are available from SUBARU dealers.

11-40 Maintenance and service

Windshield washer fluid

Washer fluid level gauge

If you spray washer fluid on the windshield but the supply of washer fluid appears to diminish, check the level of washer fluid in the tank.

level gauge or the “FULL” mark on the tank. Use windshield washer fluid. If windshield washer fluid is unavailable use clean water. In areas where water freezes in winter, use an anti-freeze type windshield washer fluid. SUBARU Windshield Washer Fluid contains 58.5% methyl alcohol and 41.5% surfactant, by volume. Its freezing tem- perature varies according to how much it is diluted, as indicated in the following table.

Washer Fluid Concentration

30%

50%

100%

Freezing

Temperature 10.48F (−128C) −48F (−208C) −498F (−458C)

CAUTION

Never use engine coolant as washer fluid because it could cause paint damage.

Remove the washer tank filler cap, then check the fluid level indicated by the level gauge (attached to the inside of the cap). If the level is near the “Low” mark, add fluid until it reaches the “Hi” level on the

In order to prevent freezing of washer fluid, check the freezing temperatures in the table above when adjusting the fluid concentration to the outside temperature. If you fill the reservoir tank with a fluid with

a different concentration from the one used previously, purge the old fluid from the piping between the reservoir tank and washer nozzles by operating the washer for a certain period of time. Otherwise, if the concentration of the fluid remaining in the piping is too low for the outside temperature, it may freeze and block the nozzles.

CAUTION

. Adjust the washer fluid concen- tration appropriately for the out- side temperature. If the concen- tration is inappropriate, sprayed washer fluid may freeze on the windshield and obstruct your view, and the fluid may freeze in the reservoir tank.

. State or local regulations on volatile organic compounds may restrict the use of methanol, a common windshield washer anti- freeze additive. Washer fluids containing non-methanol anti- freeze agents should be used only if they provide cold weather protection without damaging your vehicle’s paint, wiper blades or washer system.

Replacement of wiper blades

Grease, wax, insects, or other material on the windshield or the wiper blade results in jerky wiper operation and streaking on the glass. If you cannot remove the streaks after operating the windshield washer or if the wiper operation is jerky, clean the outer surface of the windshield (or rear window) and the wiper blades using a sponge or soft cloth with a neutral detergent or mild-abrasive cleaner. After cleaning, rinse the windshield and wiper blades with clean water. The windshield is clean if beads do not form when you rinse the windshield with water.

CAUTION

. Do not clean the wiper blades with gasoline or a solvent, such as paint thinner or benzine. This will cause deterioration of the wiper blades.

. While removing the wiper blades from the wiper arms, do not return the wiper arms to the original positions. Otherwise, the windshield surface may be scratched.

. When returning the raised wiper arms to the original positions,

Maintenance and service 11-41

carefully return the wiper arms on the windshield by hand. You should not return the wiper arms to the windshield only by the return spring. Otherwise, the wi- per arms may be deformed and/ or the windshield surface may be scratched.

If you cannot eliminate the streaking even after following this method, replace the wiper blades using the following proce- dures.

– CONTINUED –

11-42 Maintenance and service

& Windshield wiper blade as-

sembly

! Type A 1. Raise the wiper arm off the windshield.

! Type B 1. Raise the wiper arm off the windshield.

& Windshield wiper blade rub-

ber (type A and type B)

NOTE The following illustrations show the replacement procedures of the blade rubber for a type A wiper blade assem- bly, however the replacement proce- dures are the same for a type B wiper blade assembly.

1) Stopper

2. Remove the wiper blade assembly by holding its pivot area and pushing it in the direction shown by the arrow while de- pressing the wiper blade stopper. 3. Install the wiper blade assembly to the wiper arm. Make sure that it locks in place. 4. Hold the wiper arm by hand and slowly lower it in position.

1) Open the cover 2) Pull down the wiper blade

2. Remove the wiper blade assembly by opening the cover and pulling it down in the direction shown in the illustration. 3. Install the wiper blade assembly to the wiper arm. Make sure that it locks in place. 4. Hold the wiper arm by hand and slowly lower it in position.

1) Metal support

1. Grasp the locked end of the blade rubber assembly and pull it firmly until the stoppers on the rubber are free of the metal support.

with the grooves in the rubber and slide the blade rubber assembly into the metal support until it locks.

Maintenance and service 11-43

& Rear window wiper blade

assembly

1. Raise the wiper arm off window.

the rear

1) Metal spines

2. If the new blade rubber is not provided with two metal spines, remove the metal spines from the old blade rubber and install them in the new blade rubber.

2. Turn the wiper blade assembly coun- terclockwise.

1) Stopper

4. Be sure to position the claws at the end of the metal support between the stoppers on the rubber as shown. If the rubber is not retained properly, the wiper blade may scratch the windshield.

NOTE The illustration shows the replacement procedure for type A rubber wiper blades, however the replacement pro- cedure is the same for type B. Perform the replacement of type B wiper blades following the procedure in this section.

3. Align the claws of the metal support

– CONTINUED –

11-44 Maintenance and service

& Rear window wiper blade

rubber

2. Pull the blade rubber assembly out of the plastic support.

3. Pull the wiper blade assembly toward you to remove it from the wiper arm. 4. Install the wiper blade assembly to the wiper arm. Make sure that it locks in place. 5. Hold the wiper arm by hand and slowly lower it in position.

1. Pull out the end of the blade rubber assembly to unlock it from the plastic support.

1) Metal spines

3. If the new blade rubber is not provided with two metal spines, remove the metal spines from the old blade rubber and install them in the new blade rubber.

ends. If the rubber is not retained properly, the wiper may scratch the rear window glass. 5. Install the wiper blade assembly to the wiper arm. Make sure that it locks in place. 6. Hold the wiper arm by hand and slowly lower it in position.

Maintenance and service 11-45

Battery

WARNING

. Before beginning work on or near any battery, be sure to extinguish all cigarettes, matches, and light- ers. Never expose a battery to an open flame or electric sparks. Batteries give off a gas which is highly flammable and explosive. . For safety, in case an explosion does occur, wear eye protection or shield your eyes when work- ing near any battery. Never lean over a battery.

. Do not let battery fluid contact eyes, skin, fabrics, or paint be- cause battery fluid is a corrosive acid. If battery fluid gets on your skin or in your eyes, immediately flush the area with water thor- oughly. Seek medical help imme- diately if acid has entered the eyes. If battery fluid is accidentally swallowed, immediately drink a large amount of milk or water, and seek medical attention im- mediately.

. To lessen the risk of sparks, – CONTINUED –

4. Align the claws of the plastic support with the grooves in the blade rubber assembly, then slide the blade rubber assembly into place.

Securely retain both ends of the rubber with the stoppers on the plastic support

11-46 Maintenance and service

remove rings, metal watchbands, and other metal jewelry. Never allow metal tools to contact the positive battery terminal and any- thing connected to it WHILE you are at the same time in contact with any other metallic portion of the vehicle because a short cir- cuit will result.

. Keep everyone including children

away from the battery.

. Charge the battery in a well-

ventilated area.

. Battery posts, terminals and re- lated accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Batteries also contain other chemicals known to the State of California to cause can- cer. Washhandsafterhandling.

Fuses

CAUTION

Never replace a fuse with one hav- ing a higher rating or with material other than a fuse because serious damage or a fire could result.

The fuses are designed to melt during an overload to prevent damage to the wiring harness and electrical equipment. The fuses are located in two fuse boxes.

One is located under the instrument panel behind the fuse box cover on the driver’s seat side. To remove the cover, pull it out.

1) Cap 2) Upper level 3) Lower level

It is unnecessary to periodically check the battery fluid level or periodically refill with distilled water. However, if the battery fluid level is below the lower level, remove the cap. Fill to the upper level with distilled water.

CAUTION

Never use more than 10 amperes when charging the battery because it will shorten battery life.

Maintenance and service 11-47

corresponding fuse. If a fuse has blown, replace it. 1. Turn the ignition switch to the “LOCK” position and turn off all electrical acces- sories. 2. Remove the cover. 3. Determine which fuse may be blown. Look at the back side of each fuse box cover and refer to “Fuses and circuits” F12-6.

If

Inspect

the fuse.

4. Pull out the fuse with the fuse puller. 5. it has blown, replace it with a spare fuse of the same rating. 6. this indicates that its system has a problem. Contact your SUBARU dealer for repairs.

the same fuse blows again,

If

The other one is housed in the engine compartment.

The fuse puller is stored in the main fuse box in the engine compartment.

The spare fuses are stored in the main fuse box cover in the engine compart- ment.

1) Good 2) Blown

If any lights, accessories or other electrical controls do not operate, the

inspect

11-48 Maintenance and service

Main fuse

Installation of accessories

Replacing bulbs

Always consult your SUBARU dealer before installing fog lights or any other electrical equipment in your vehicle. Such accessories may cause the electronic system to malfunction if they are incor- rectly installed or if they are not suited for the vehicle.

Main fuse box

The main fuses are designed to melt during an overload to prevent damage to the wiring harness and electrical equip- ment. Check the main fuses if any electrical component fails to operate (ex- cept the starter motor) and other fuses are good. A melted main fuse must be replaced. Use only replacements with the same specified rating as the melted main fuse. is replaced, have the electrical system checked by your nearest SUBARU dealer.

If a main fuse blows after

it

WARNING

Bulbs may become very hot while illuminated. Before replacing bulbs, turn off the lights and wait until the bulbs cool down. Otherwise, there is a risk of sustaining a burn injury.

CAUTION

Replace any bulb only with a new bulb of the specified wattage. Using a bulb of different wattage could result in a fire. For the specified wattage of each bulb, refer to “Bulb chart” F12-10.

& Headlights (models with HID

headlights)

WARNING

High-intensity-discharge (HID) bulbs are used for the low beams of the headlights. These HID bulbs use an extremely high voltage. To avoid the risk of an electric shock that could result in serious injury, observe the

following precautions. . Do not replace any headlight bulbs (both low beam and high beam) by yourself.

. Do not remove/restore the head-

light assemblies by yourself.

. Do not remove any headlight- assembly components by your- self.

replacement, contact your

For SUBARU dealer.

& Headlights (models without

HID headlights)

CAUTION

Halogen headlight bulbs become very hot while in use. If you touch the bulb surface with bare hands or greasy gloves, fingerprints or grease on the bulb surface will develop into hot spots, causing the bulb to break. there are finger prints or grease on the bulb surface, wipe them away with a soft cloth moistened with alcohol.

If

NOTE . If headlight aiming is required, con- sult your SUBARU dealer for proper adjustment of the headlight aim. . It may be difficult to replace the bulbs. Have the bulbs replaced by your SUBARU dealer if necessary.

! Low beam light bulbs

Right-hand side

1. Use a screwdriver to undo the clips on the air intake duct, then remove the air intake duct (right-hand side).

Maintenance and service 11-49

Left-hand side

2. Use a screwdriver to remove the secured clip of the washer tank. To make it easy to access the bulb, move the washer tank to the horizontal direction (left-hand side).

– CONTINUED –

11-50 Maintenance and service

! High beam light bulbs

3. Remove the bulb cover, by turning it counterclockwise.

Right-hand side

1. Use a screwdriver to undo the clips on the air intake duct, then remove the air intake duct (right-hand side).

the bulb to the headlight

5. Remove the bulb from the headlight assembly by turning it counterclockwise. 6. Replace the bulb with a new one. At this time, do not touch the bulb surface. 7. To install assembly, turn it clockwise until it clicks. 8. Reconnect the electrical connector. 9. 10. Install (right-hand side). 11. Set the washer tank to the original place and secure it by clip (left-hand side).

the air intake duct with clips

Install the bulb cover.

4. Disconnect from the bulb.

the electrical connector

Left-hand side

2. Use a screwdriver to remove the secured clip of the washer tank. To make it easy to access the bulb, move the washer tank to the horizontal direction (left-hand side).

3. Disconnect from the bulb.

the electrical connector

4. Remove the bulb from the headlight assembly by turning it counterclockwise. 5. Replace the bulb with new one. At this time, use care not to touch the bulb surface. 6. To install assembly, turn it clockwise until it clicks. 7. Reconnect the electrical connector. 8. (right-hand side). 9. Set