2006 SUBARU IMPREZA oil filter

4
Climate control
Ventilator ............................................................. 4-2
Air flow selection ................................ .................... 4-2
Center and side ventilators ....................... ............. 4-3
Manual climate control system (if equipped) ..................................... ............... 4-3
Control panel ..................................... ..................... 4-3
Heater operation .................................. ................... 4-5
Air conditioner operation (if equipped) ........... ..... 4-7
Automatic climate control system (if equipped) ..................................... ............... 4-7
Control panel ..................................... ..................... 4-8
To use as full-automatic climate control
system ............................................ ....................... 4-8
To use as semi-automatic climate control system ............................................ ....................... 4-8
Fan speed control dial ............................ ............... 4-8
Temperature control dial .......................... .............. 4-9
Air flow control dial ............................. ................... 4-9
Air inlet selection button ........................ ................ 4-9
Air conditioner button ............................ ................ 4-10
Temperature sensors ............................... .............. 4-10
Operating tips for heater and air conditioner ....................................... ............... 4-11
Cleaning ventilation grille ....................... ............... 4-11
Efficient cooling after parking in direct sunlight .......................................... ....................... 4-11
Lubrication oil circulation in the refrigerant
circuit ........................................... ......................... 4-11Checking air conditioning system before
summer season ..................................... ............... 4-11
Cooling and dehumidifying in high humidity and
low temperature weather conditions ................ .. 4-11
Air conditioner compressor shut-off when engine is heavily loaded .......................... ............ 4-12
Refrigerant for your climate control system ....... . 4-12
Air filtration system ............................. ............... 4-12
Replacing an air filter ........................... .................. 4-12

11
Maintenance and service
Maintenance schedule ....................................... 11-3
Maintenance precautions ........................... ....... 11-3
Before checking or servicing in the engine compartment ....................................... ................. 11-4
When you do checking or servicing in the engine
compartment while the engine is running ......... 11 -4
Engine hood ....................................... ................ 11-4
Engine compartment overview ....................... .. 11-6
Non-turbo models .................................. ................. 11-6
Turbo models ...................................... .................... 11-7
Engine oil ........................................ .................... 11-8
Checking the oil level ............................ ................. 11-8
Changing the oil and oil filter ................... ............. 11-8
Recommended grade and viscosity ................... .. 11-10
Recommended grade and viscosity under severe driving conditions ......................... ........... 11-11
Synthetic oil ..................................... ....................... 11-11
Cooling system .................................... .............. 11-12
Cooling fan, hose and connections ................. ..... 11-12
Engine coolant .................................... .................... 11-12
Air cleaner element ............................... ............. 11-15
Replacing the air cleaner element ................. ........ 11-15
Spark plugs ....................................... .................. 11-17
Recommended spark plugs ........................... ........ 11-17
Drive belts ....................................... .................... 11-18
Manual transmission oil ........................... ......... 11-18
Checking the oil level ............................ ................. 11-18
Recommended grade and viscosity ................... .. 11-19Automatic transmission fluid ......................
...... 11-20
Checking the fluid level .......................... ................ 11-20
Recommended fluid ................................. .............. 11-21
Front differential gear oil (AT vehicles) ......... ... 11-21
Checking the oil level ............................ ................. 11-21
Recommended grade and viscosity ................... .. 11-22
Rear differential gear oil ........................ ............ 11-22
Checking the gear oil level ....................... ............. 11-22
Recommended grade and viscosity ................... .. 11-23
Power steering fluid .............................. ............. 11-24
Checking the fluid level .......................... ................ 11-24
Recommended fluid ................................. .............. 11-24
Brake fluid ....................................... .................... 11-25
Checking the fluid level .......................... ................ 11-25
Recommended brake fluid ........................... .......... 11-25
Clutch fluid (MT vehicles) ........................ .......... 11-26
Checking the fluid level .......................... ................ 11-26
Recommended clutch fluid .......................... .......... 11-26
Brake booster ..................................... ................ 11-27
Brake pedal ....................................... .................. 11-27
Checking the brake pedal free play ................ ...... 11-27
Checking the brake pedal reserve distance ......... 11-27
Clutch pedal (MT vehicles) ........................ ........ 11-28
Checking the clutch function ...................... .......... 11-28
Checking the clutch pedal free play ............... ...... 11-28
Replacement of brake pad and lining ............... 11-28
Breaking-in of new brake pads and linings ......... . 11-29
Parking brake stroke .............................. ............ 11-29

11-8 Maintenance and service
Engine oil
Checking the oil level
Check the engine oil level at each fuel
stop.
1. Park the vehicle on a level surface and
stop the engine.
2. Pull out the dipstick, wipe it clean, and
insert it again.
3. Be sure the dipstick is correctly insert-
ed until it stops with the graphic
symbol on its top appearing as
shown in the illustration.
1) Notch
2) Upper level
3) Lower level
4. Pull out the dipstick again and check
the oil level on it. If it is below the lower
level, add oil to bring the level up to the up-
per level.
If you check the oil level just after stopping
the engine, wait a few minutes for the oil to
drain back into the oil pan before checking
the level.
Just after driving or while the engine is
warm, the engine oil level reading may be
in a range between the upper level and
the notch mark. This is caused by thermal
expansion of the engine oil.
To prevent overfilling the engine oil, do not
add any additional oil above the upper lev-
el when the engine is cold.
Changing the oil and oil filter
Change the oil and oil filter according to
the maintenance schedule in the “Warran-
ty and Maintenance Booklet ”.
The engine oil and oil filter must be
changed more frequently than listed in the
maintenance schedule when driving on
dusty roads, when short trips are frequent-
ly made, or when driving in extremely cold
whether.
1. Warm up the engine by letting the en-
gine idle for approximately 10 minutes to
ease draining the engine oil.
2. Park the vehicle on a level surface and
stop the engine.
3. Remove the oil filler cap.
B00467
Use only engine oil with the rec-
ommended grade and viscosity.
Be careful not to spill engine oil
when adding it. If oil touches the
exhaust pipe, it may cause a bad
smell, smoke, and/or a fire. If en-
gine oil gets on the exhaust pipe,
be sure to wipe it off.
1 2
3
B00418

Maintenance and service 11-9
– CONTINUED –
Turbo models
Non-turbo models
4. Drain out the engine oil by removing
the drain plug while the engine is still warm. The used oil should be drained into
an appropriate container and disposed of
properly.
5. Wipe the seating surface of the drain
plug with a clean cloth and tighten it se-
curely with a new sealing washer after the
oil has completely drained out.
6. Remove under cover.
Turbo models
Non-turbo models
7. Remove the oil filter with an oil filter
wrench.
8. Before installing a new oil filter, apply a
thin coat of engine oil to the seal.
9. Clean the rubber seal seating area of
the bottom of engine and install the oil fil-
ter by hand turning. Be careful not to twist
or damage the seal.
10.Tighten the oil filter by the amount indi-
cated in the following table after the seal
makes contact with the bottom of engine.
B00449
B00450
Be careful not to burn yourself with
hot engine oil.
B00451
B00452

11-10 Maintenance and service
11.Reinstall under cover.
12.Pour engine oil through the filler neck.
Oil capacity (guideline):
4.2 US qt (4.0 liters, 3.5 Imp qt)
The oil quantity indicated above is only
guideline.
The necessary quantity of oil depends on
the quantity of oil that has been drained.
The quantity of drained oil differs slightly
depending on the temperature of the oil
and the time the oil is left flowing out. After refilling the engine with oil, therefore, you
must the dipstick to confirm that the level
is correct.
13.Start the engine and make sure that no
oil leaks appear around the filter
’s rubber
seal and drain plug.
14.Run the engine until it reaches the nor-
mal operating temperature. Then stop the
engine and wait a few minutes to allow the
oil drain back. Check the oil level again
and if necessary, add more engine oil.
Recommended grade and
viscosity
Oil grade:
ILSAC GF-4, which can be identified
with the ILSAC certification mark
(Starburst mark)
or API classification SM with the
words “ENERGY CONSERVING ”
These recommended oil grades can be
identified by looking for either or both of
the following marks displayed on the oil container.
API Service label
1) Indicates the oil quality by API designa-
tions
2) Indicates the SAE oil viscosity grade
3) Indicates that the oil has fuel saving ca- pabilities
Oil filter color Part number
Amount of ro-
tation
Black 15208AA100 1 rotation
White 15208AA09A 2/3
– 3/4 rota-
tion
Never over tighten the oil filter be-
cause that can result in an oil leak.
Thoroughly wipe off any engine
oil that has spilled over the ex-
haust pipe and/or under-cover. If
left unremoved, the oil could
catch fire.
Be careful not to spill engine oil
when adding it. If oil touches the ex-
haust pipe, it may cause a bad smell,
smoke, and/or a fire.
APISERVICES
NERGYCONRVING
SAE
5W-30
1
2
3
B00446

Maintenance and service 11-11
ILSAC Certification Mark (Starburst
Mark)
In choosing an oil, you want the proper
quality and viscosity, as well as one that
will add to fuel economy. The following ta-
ble lists the recommended viscosities and
applicable temperatures.
When adding oil, different brands may be
used together as long as they are the
same API classification and SAE viscosity
as those recommended by SUBARU.
SAE viscosity No. and applicable tem-
perature
*: 5W-30 is recommended.
Engine oil viscosity (thickness) affects fuel
economy. Oils of lower viscosity provide
better fuel economy. However, in hot
weather, oil of higher viscosity is required
to properly lubricate the engine.
Recommended grade and
viscosity under severe driv-
ing conditions
If the vehicle is used in desert areas, in ar- eas with very high temperatures, or used
for heavy-duty applications such as tow-
ing a trailer, use of oil with the following
grade and viscosities is recommended.
API classification SM (or SL):
SAE viscosity No.: 30, 40, 10W-50,
20W-40, 20W-50
Synthetic oil
You can use synthetic engine oil that
meets the same requirements given for
conventional engine oil. When using syn-
thetic oil, you must use oil of the same
classification, viscosity and grade shown
in this owner ’s manual, and must follow
the oil and filter changing intervals shown
in the maintenance schedule.B00014
Use only engine oil with the recom-
mended grade and viscosity.
B00522
5W-30*
10W-30, 10W-40
-30 -20 -10 0 10 20 30 40
-20 0 60 20 80 10040

Index 14-3
Oil and oil filter ................................ ............................. 11-8
Charge warning light .............................. .......................... 3-16
CHECK ENGINE warning light/Malfunction indicator lamp .............................................. ................................ 3-16
Checking Brake pedal free play ............................... .................. 11-27
Brake pedal reserve distance ........................... ......... 11-27
Clutch function ..................................... ...................... 11-28
Clutch pedal free play .............................. .................. 11-28
Engine oil level ................................... ......................... 11-8
Fluid level ................................. 11-20 , 11-24, 11-25, 11-26
Gear oil level ..................................... ... 11-18, 11-21, 11-22
Child restraint systems ............................... ...................... 1-23
Installation with A/ELR seatbelt ................... ................ 1-26
Lower and tether anchorages ........................ .............. 1-30
Child safety ........................................ .................................... 5
Locks ................................................ ........................... 2-18
Chime Key ................................................ ................................ 3-5
Seatbelt .......................................... .................... 1-11, 3-14
Cigarette lighter socket ............................ ........................... 6-6
Cleaning Aluminum wheels .................................... .................... 10-3
Interior .......................................... ............................... 10-5
Ventilator grille ................................. ............................ 4-11
Climate control system Automatic ......................................... .............................. 4-7
Manual ............................................ ............................... 4-3
Clock ............................................... ................................. 3-22
Clutch fluid ....................................... ............................... 11-26
Clutch pedal ....................................... ............................ 11-28
Coat hook .......................................... ................................. 6-9Coin tray ..........................................
................................... 6-4
Cooling system ....................................... ........................ 11-12
Corrosion protection ................................ ................ 8-10, 10-4
Cruise control ...................................... .............................. 7-27
Indicator light .................................... ............................ 3-20
Set indicator light ................................ ......................... 3-20
Cup holder ........................................ .................................. 6-5
D
Daytime running light system ......................... ................... 3-23
Differential gear oil Front ............................................. .............................. 11-21
Rear .............................................. ............................. 11-22
Dimensions .......................................... ............................. 12-2
Disarming the system ................................. ...................... 2-15
Disc brake pad wear warning indicators ................ ........... 7-22
Dome light ........................................ ........................ 6-2, 11-50
Door locks ......................................... .................................. 2-4
Door open warning light ........................... ......................... 3-19
Drive belts ........................................ ............................... 11-18
Driver ’s control center differential ....................... .............. 7-12
Drivers control center differential Auto indicator light ............................... ........................ 3-20
Indicator lights .................................... .......................... 3-21
Driving Car phone/cell phone ............................... ......................... 7
Drinking ........................................... .................................. 6
Drugs .............................................. .................................. 7
Foreign countries ................................... ........................ 8-4
Pets ............................................... .................................... 7
Snowy and icy roads ................................... ................... 8-9
Tips ............................................... .............. 7-10, 7-12, 8-5

14-6 Index
Off road driving ................................... ................................ 8-6
Oil filter ........................................ ..................................... 11-8
Oil level Engine ............................................ ............................. 11-8
Front differential (AT vehicles) ..................... .............. 11-21
Manual transmission ................................. ................. 11-18
Rear differential ................................. ........................ 11-22
Oil pressure warning light .......................... ....................... 3-16
Outside mirrors ..................................... ............................ 3-33
Outside temperature indicator ....................... ............ 3-9, 3-13
Overheating engine ................................. ......................... 9-11
P
Parking Brake .............................................. ............................. 7-25
Brake stroke ......................................... ..................... 11-29
Light switch ........................................ .......................... 3-25
Tips ............................................... ............................... 7-25
Periodic inspections .................................. ......................... 8-4
Power Door locking switches ................................. ................... 2-6
Steering .......................................... ............................. 7-21
Steering fluid .................................... ......................... 11-24
Windows ........................................... ........................... 2-18
Preparing to drive ................................. .............................. 7-6
Printed antenna ................................... ............................... 5-2
R
Rear Combination lights ................................. .................... 11-48
Differential gear oil ............................. ........................ 11-22Differential oil temperature warning light ........
.............. 3-17
Gate .............................................. ............................... 2-23
Seats .............................................. ................................ 1-6
Rear seat Folding down (Wagon) .............................. ..................... 1-8
Rear window Defogger button ................................... ........................ 3-29
Wiper and washer switch ............................. ................ 3-28
Recommended Automatic transmission fluid .......................... ............ 11-21
Brake fluid ........................................ .......................... 11-25
Clutch fluid ....................................... .......................... 11-26
Oil grade and viscosity .............................. ..... 11-10, 11-11,
11-19, 11-22, 11-23
Power steering fluid ............................... .................... 11-24
Spark plugs ......................................... ....................... 11-17
Remote keyless entry system .............................. ............... 2-7
Replacement Brake pad and lining ............................... ................... 11-28
Wiper blades ....................................... ....................... 11-37
Replacing Air cleaner element ................................ .................... 11-15
Battery (Remote keyless entry system) ..................... .... 2-9
Lost transmitters (keyless entry system) ................. ..... 2-10
Replacing bulbs ..................................... ......................... 11-44
Cargo area light .................................. ....................... 11-50
Dome light ........................................ .......................... 11-50
Front fog light ................................... .......................... 11-48
Front turn signal light ............................ ..................... 11-48
Headlights ......................................... ......................... 11-45
High mount stop light .............................. ................... 11-51
License plate light ................................. ..................... 11-50