air filter SUBARU LEGACY 2005 4.G Owners Manual

4-19
Climate control
– CONTINUED –
Air filtration system (if equipped)
If your vehicle’s air conditioning system is equipped
with an air filtration system, replace the filter element
according to the replacement schedule shown below.
This schedule should be followed to maintain the fil-
ter’s dust collection ability. Under extremely dusty con-
ditions, the filter should be replaced more frequently.
Have your filter checked or replaced by your SUBARU
dealer. For replacement, we recommend the use of a
genuine SUBARU air filter kit.
Replacement schedule:
Every 12 months or 7,500 miles (12,000 km) whichev-
er comes first
Contact your SUBARU dealer if the following
occurs, even if it is not yet time to change the
filter:
– Reduction of the air flow through the vents.
– Windshield gets easily fogged or misted.
NOTE
The filter can influence the air conditioning, heat- ing and defroster performance if not properly
maintained.

11 - 1
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 ............................................................ 11-5
Engine hood .................................................. 11-5
Engine compartment overview ................... 11-8 2.5-liter non-turbo models ................................ 11-8
2.5-liter non-turbo California-spec. models .... 11-9
2.5-liter turbo models ....................................... 11-10
3.0-liter models .................................................. 11-11
Engine oil ...................................................... 11-12 Checking the oil level ....................................... 11-12
Changing the oil and oil filter .......................... 11-13
Recommended grade and viscosity ................ 11-16
Recommended grade and viscosity under severe driving conditions .............................. 11-17
Cooling system ............................................. 11-18 Hose and connections ...................................... 11-19
Engine coolant .................................................. 11-19
Air cleaner element ...................................... 11-24 Replacing the air cleaner element ................... 11-24
Spark plugs ................................................... 11-29 Recommended spark plugs ............................. 11-29
Drive belts ..................................................... 11-30 2.5-liter models .................................................. 11-30
3.0-liter models .................................................. 11-30
Manual transmission oil ............................... 11-31 Checking the oil level ....................................... 11-31
Recommended grade and viscosity ............... 11-32
Automatic transmission fluid ...................... 11-33 Checking the fluid level .................................... 11-33
Recommended fluid ......................................... 11-35
Front differential gear oil (AT vehicles) ...... 11-35 Checking the oil level ....................................... 11-35
Recommended grade and viscosity ............... 11-36
Rear differential gear oil ............................... 11-37 Checking the gear oil level .............................. 11-37
Recommended grade and viscosity ............... 11-40
Power steering fluid ...................................... 11-41 Checking the fluid level .................................... 11-41
Recommended fluid ......................................... 11-42
Brake fluid ..................................................... 11-42 Checking the fluid level .................................... 11-42
Recommended brake fluid ............................... 11-43
Clutch fluid (MT vehicles) ............................ 11-43 Checking the fluid level .................................... 11-43
Recommended clutch fluid .............................. 11-44
Brake booster ................................................ 11-44
Brake pedal .................................................... 11-45 Checking the brake pedal free play ................ 11-45
Checking the brake pedal reserve distance ... 11-45
Clutch pedal (Manual transmission vehicles) ..................................................... 11-46Checking the clutch function .......................... 11-46
Checking the clutch pedal free play ............... 11-46
Replacement of brake pad and lining ......... 11-47

11 - 4
Maintenance and service
the materials in the vehicle may be hazardous if
improperly used or handled, for example, bat-tery acid. "
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. " Always use the proper tools and make certain
that they are well maintained. " Never get under the vehicle supported only
by a jack. Always use a safety stands to sup-
port the vehicle. " Never keep the engine running in a poorly
ventilated area, such as a garage or other
closed areas. " Do not smoke or allow open flames around
the fuel or battery. This will cause a fire. " Because the fuel system is under pressure,
replacement of the fuel filter should be per-
formed only by your SUBARU dealer." 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. " 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
"Always stop the engine and set the parking
brake firmly to prevent the vehicle from mov-
ing. " 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." Do not spill engine oil, engine coolant, brake
fluid or any other fluid on hot engine compo-
nents. This may cause a fire." Always remove the key from the ignition
switch. When the ignition switch is in the “ON”
position, the cooling fan may operate suddenly

11 - 2 4
Maintenance and service
Air cleaner element
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
engine backfires. If the air cleaner element is
not installed when the engine backfires, you
could be burned.
The air cleaner element functions as a filter screen.
When the element is perforated or removed, engine
wear will be excessive and engine life shortened.
The air cleaner element is a dry type. It is unnecessary
to clean or wash the element. ! Replacing the air cleaner element
Replace the air cleaner element according to the
maintenance schedule in the “Warranty and Mainte-
nance Booklet”. Under extremely dusty conditions, re-
place it more frequently. It is recommended that you
always use genuine SUBARU parts. !
Non-turbo models
0
A) Connector
B) Duct
C) Clamp
1. Unplug the connector that is attached to the top of
the air cleaner case.
2. Remove the hose that is located at the bottom of
the side surface of the air cleaner case.
3. Undo the screw and pull the air duct out of the air
cleaner case.
4. Unsnap the two clamps holding the air cleaner
case cover.
A
C
BUBB512CB