Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 152

IN(w/o STI)-7

Air Cleaner Element

INTAKE (INDUCTION)

2. Air Cleaner Element

A: REMOVAL

1) Disconnect the ground cable from battery.

2) Remove the air intake duct. <Ref. to IN(w/o STI)-

10, REMOVAL, Air Intake Duct.>

3) Disconnect the connector (A) from air flow and

intake air temperature sensor.

4) Remove the clips (B) from the air cleaner case

(front).

5) Open the air cleaner case, and remove the air

cleaner element.

B: INSTALLATION

Install in the reverse order of removal.
CAUTION:

Be sure to use SUBARU genuine air cleaner el-

ement depending on the engine type when re-

placing the air cleaner elements. Using other air

cleaner element may affect the engine perfor-

mance.
NOTE:

• Check that there are no foreign objects in the air

cleaner case.

• If the protrusion of the air cleaner case (rear) is

removed when removing the air cleaner element,

align the protrusion of the air cleaner case (rear) to

the hole on the air cleaner case (front) to install.

C: INSPECTION

1) Check that the air cleaner element has no defor-

mation, cracks or other damages.

2) Check the air cleaner element for excessive dirt.

IN-00203

(A)

(B)

(B)

IN-02444

IN-02255

IN-02376

IN(w/o STI)-8

Air Cleaner Case

INTAKE (INDUCTION)

3. Air Cleaner Case

A: REMOVAL

1) Disconnect the ground cable from battery.

2) Remove the air intake duct. <Ref. to IN(w/o STI)-

10, REMOVAL, Air Intake Duct.>

3) Disconnect the connector (A) from air flow and

intake air temperature sensor.

4) Loosen the clamp (B) which holds the air intake

boot.

5) Remove the clip (C) from the air cleaner case

(front).

6) Remove the air cleaner case (rear) and air in-

take boot.

7) Remove the air cleaner element.

8) Remove bolts (A) and nuts (B) which secure the

air cleaner case (front) to the body, and remove the

air cleaner case (front).

B: INSTALLATION

1) Install the bolt (A) and nut (B) which secure the

air cleaner case (front) to the body.
Tightening torque:

Bolt (A)

6 N·m (0.6 kgf-m, 4.4 ft-lb)

Nut (B)

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

2) Install the air cleaner element.

3) Install the air cleaner case (rear) and air intake

boot.
NOTE:

When installing the air cleaner case (rear), align the

protrusion of the air cleaner case (rear) to the hole

on the air cleaner case (front) to install.

Tightening torque:

2.5 N·m (0.3 kgf-m, 1.8 ft-lb)

4) Install the clip (B) to the air cleaner case (front).

IN-00203

(A)

(B)

(B)

(C)

(C)

IN-02273

IN-02445

(A)

(B)

IN-02445

(A)

(B)

IN-02376

IN-02475

IN(w/o STI)-9

Air Cleaner Case

INTAKE (INDUCTION)

5) Connect the connector (A) to the mass air flow

and intake air temperature sensor.

6) Install the air intake duct. <Ref. to IN(w/o STI)-

10, INSTALLATION, Air Intake Duct.>

7) Connect the battery ground terminal.

C: INSPECTION

1) Check that the air cleaner case has no deforma-

tion, cracks or other damages.

2) Check that the air intake boot has no cracks,

damage or loose part.

(A)

(B)

(B)

IN-02272

IN-00203

IN(w/o STI)-10

Air Intake Duct

INTAKE (INDUCTION)

4. Air Intake Duct

A: REMOVAL

Remove the clip which secures the air intake duct,

and remove the air intake duct.

B: INSTALLATION

Install in the reverse order of removal.

C: INSPECTION

1) Check that the air intake duct has no deforma-

tion, cracks or other damages.

2) Inspect that no foreign objects are mixed in the

air intake duct.

IN-02867