Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 16

PM-2

General Description

PERIODIC MAINTENANCE SERVICES

1. General Description

A: GENERAL DESCRIPTION

Be sure to perform periodic maintenance in order to

maintain vehicle performance and find problems

before they occur.

PM-3

Schedule

PERIODIC MAINTENANCE SERVICES

2. Schedule

A: MAINTENANCE SCHEDULE 1

1. U.S.

Symbols used:
R: Replace
I: Inspection
P: Perform
(I): Inspections recommended for vehicle safety

Maintenance interval

[Number of months or km (miles), whichever occurs first]

Months

3

7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5 120

Remarks

× 1,000 km

4.8 12 24

36

48

60

72 81.4 96 108 120 132 144 156 168

180

192

× 1,000 miles

3

7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5 120

1 Engine oil

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

2 Engine oil filter

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

3 Spark plug

R

R

4 Drive belt(s)

I

I

I

R

5 Camshaft drive belt

I

I

I

R

6 Fuel line

(I)

(I)

(I)

I

Note (1)

7 Fuel filter

R

R

8 Air cleaner element

R

R

R

R Note (2)

9 Cooling system

I

I

I

I

10 Engine Coolant

Note (5)

11 Clutch system

I

I

I

I

I

I

I

I

12 Transmission gear oil

I

I

I

I

Note (6)

13 Front and rear differ-

ential oil

I

I

I

I

Note (6)

14 Brake line

I

I

I

I

I

I

I

I

15 Brake fluid

R

R

R

R

16 Disc brake pad and

disc

I

I

I

I

I

I

I

I

17 Parking brake

I

I

I

I

I

I

I

I

18 Suspension

I

I

I

I

I

I

I

I

19 Wheel bearing

(I)

(I)

20 Axle boots and

joints

I

I

I

I

I

I

I

I

21 Tire rotation

P

P

P

P

P

P

P

P

P

P

P

P

P

P

P

P Note (3)

22 Steering system

(power steering)

I

I

I

I

I

I

I

I

23 A/C filter

Check every 12 months or every 12,000 km (7,500 miles).

Note (4)

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PM-4

Schedule

PERIODIC MAINTENANCE SERVICES

NOTE:

1.This inspection is not required to maintain emission warranty eligibility and it dose not affect the manufacturer’s obligations under
EPA’s in-use compliance program.
2.When the vehicle is used in extremely dusty conditions, the air cleaner element should be replaced more often.
3.A tire should be replaced when the tread wear indicator appears as a solid band across the tread. The indicators appear when the
remaining tread has been worn to 1.6 mm (0.063 in) or less.
4.When the vehicle is used under extremely dusty conditions, the A/C filter should be replaced more often.
5. Replace the first time after 11 years or every 220,000 km (137,500 miles), and thereafter every six years or every 120,000 km
(75,000 miles).
6.When the vehicle is used under severe condition such as towing trailer or driving on sand, ATF, differential gear oil (both front and
rear) and transmission gear oil should be replaced more often.

B: MAINTENANCE SCHEDULE 2

Item

Maintenance

interval

Repeat short

distance drive

Repeat

rough/muddy

road drive

Extremely

cold weather

area

Salt or other

corrosive

used or

coastal area

High humid-

ity or moun-

tain area

Repeat tow-

ing trailer

Engine oil

3.75 months

R

R

R

6,000 km
3,750 miles

Engine oil filter

3.75 months

R

R

R

6,000 km
3,750 miles

Fuel line

7.5 months

I

12,000 km
7,500 miles

Transmission
gear oil

15 months

R

24,000 km
15,000 miles

Front and rear
differential oil

15 months

R

24,000 km
15,000 miles

Brake line

7.5 months

I

12,000 km
7,500 miles

Brake fluid

15 months

R

24,000 km
15,000 miles

Disc brake pad
and disc

7.5 months

I

I

I

I

12,000 km
7,500 miles

Parking brake

7.5 months

I

I

I

I

12,000 km
7,500 miles

Suspension

7.5 months

I

I

I

I

12,000 km
7,500 miles

Axle boots and
joints

7.5 months

I

I

I

I

I

12,000 km
7,500 miles

Steering system
(power steering)

7.5 months

I

I

I

I

12,000 km
7,500 miles

PM-5

Engine Oil

PERIODIC MAINTENANCE SERVICES

3. Engine Oil

A: REPLACEMENT

1) Set the vehicle on a lift.

2) Open the engine oil filter cap for quick draining of

engine oil.

CAUTION:

If any engine oil is spilled on the exhaust pipe,

under cover, wipe off completely to prevent

fires or emission of smoke.

3) Lift up the vehicle.

4) Drain engine oil by loosening the engine oil drain

plug.

NOTE:

Prepare the container for draining of engine oil.

5) Replace the drain plug gasket.
NOTE:

Use a new drain plug gasket.

6) Tighten the engine oil drain plug after draining

engine oil.
Tightening torque:

44 N·m (4.5 kgf-m, 32.5 ft-lb)

7) Using engine oil of proper quality and viscosity,

fill engine oil through the oil filler duct to the “F” line

on oil level gauge. Place the vehicle on a level sur-

face when checking oil level.
Recommended oil:

Refer to “RM” section for the engine oil vis-

cosity. <Ref. to RM-2, LUBRICANT, RECOM-

MENDED MATERIALS, Recommended

Materials.>

Engine oil capacity

Refer to “SPC” section for the engine oil ca-

pacity. <Ref. to SPC-4, CAPACITY, Impreza.>

NOTE:

• The proper viscosity helps vehicle get good cold

and hot starting by reducing viscous friction and

thus increasing cranking speed.

• When replenishing oil, it does not matter if the oil

to be added is a different brand from that in the en-

gine; however, use oil having the API standard and

SAE viscosity No. designated by SUBARU.

• If vehicle is used in desert areas with very high

temperatures or for other heavy duty applications,

the following viscosity oils may be used:

API standard: SN, SM, or SL

ILSAC standard: GF-4 or GF-5

SAE viscosity No.: 30, 40, 20W-40, 20W-50

8) Close the engine oil filler cap.

9) Start the engine and warm it up for a time.

10) Stop the engine to inspect the oil level again.

<Ref. to PM-5, INSPECTION, Engine Oil.>

B: INSPECTION

CAUTION:

If any engine oil is spilled on the exhaust pipe,

under cover, wipe off completely to prevent

fires or emission of smoke.

1) Park the vehicle on a level surface.

2) Remove the oil level gauge and wipe it clean.

3) Reinsert the oil level gauge all the way. Be sure

that the oil level gauge is correctly inserted and

properly orientated.

4) Remove the level gauge again and record the oil

level. If the engine oil level is below the “L” line, add

oil to bring the level up to but not over the “F” line.

5) Start the engine and warm it up for a time.

(A) Oil level gauge
(B) Oil filler cap

(B)

(A)

PM-00435

LU-02395