Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 189

CO(w/o STI)-25

Radiator Sub Fan and Fan Motor

COOLING

9. Radiator Sub Fan and Fan

Motor

A: REMOVAL

1) Disconnect the ground cable from battery.

2) Lift up the vehicle.

3) Remove the under cover. <Ref. to EI-28, RE-

MOVAL, Front Under Cover.>

4) Disconnect the connector from the sub fan mo-

tor.

5) Lower the vehicle.

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

10, REMOVAL, Air Intake Duct.>

7) Remove the bolts which secure the radiator sub

fan motor assembly and the over flow pipe.

8) Raise the radiator sub fan motor assembly

slightly, remove the pin at the lower part of the ra-

diator sub fan motor assembly from the radiator

hole, and remove the radiator sub fan motor as-

sembly from the lower side of the vehicle.

B: INSTALLATION

Install in the reverse order of removal.
CAUTION:

Check if the radiator hose and the over flow

hose are properly connected.
Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

C: DISASSEMBLY

1) Remove the clip which holds the sub fan motor

connector onto the radiator sub fan shroud.

2) Disconnect the radiator sub fan from the sub fan

motor.

3) Disconnect the sub fan motor from the radiator

sub fan shroud.

IN-00203

CO-02775

CO-02512

CO-02369

CO-02373

CO(w/o STI)-26

Radiator Sub Fan and Fan Motor

COOLING

D: ASSEMBLY

Assemble in the reverse order of disassembly.
Tightening torque:

4.41 N·m (0.45 kgf-m, 3.25 ft-lb)

Tightening torque:

3.4 N·m (0.3 kgf-m, 2.5 ft-lb)

E: INSPECTION

Check that the radiator sub fan, radiator sub fan

shroud and sub fan motor do not have deformation,

cracks or damage.

CO-02373

CO-02369

CO(w/o STI)-27

Reservoir Tank

COOLING

10.Reservoir Tank

A: REMOVAL

1) Pull out the over flow hose (A).

2) Pull out the reservoir tank to the arrow direction

while pushing the claw (B).

B: INSTALLATION

Install in the reverse order of removal.

C: INSPECTION

1) Check that the reservoir tank does not have de-

formation, cracks or damage.

2) Check the over flow hose for cracks or damage.

3) Make sure the engine coolant level is between

“FULL” and “LOW”.

CO-02766

(B)

(A)

CO(w/o STI)-28

Coolant Filler Tank

COOLING

11.Coolant Filler Tank

A: REMOVAL

CAUTION:

The coolant filler tank is pressurized when the

engine and radiator are hot. Wait until engine

and radiator cool down before working on the

coolant filler tank.

1) Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt)

of coolant. <Ref. to CO(w/o STI)-13, DRAINING

OF ENGINE COOLANT, REPLACEMENT, Engine

Coolant.>

2) Disconnect the engine coolant hoses from cool-

ant filler tank.

3) Remove the bolts which secure the coolant filler

tank.

4) Disconnect the engine coolant hose which con-

nects the under side of coolant filler tank, and re-

move the coolant filler tank.

B: INSTALLATION

Install in the reverse order of removal.
Tightening torque:

16 N·m (1.6 kgf-m, 11.8 ft-lb)

C: INSPECTION

1) Check that the coolant filler tank does not have

deformation, cracks or damage.

2) Check that the engine coolant hose has no

cracks, damage or loose part.

CO-02911

CO-02912