Subaru Legacy (2005 year). Manual - part 293

CO(H4DOTC)-3

COOLING

General Description

Vehicle speed

A/C compressor load

Engine coolant temperature

95

°C (203°F) or less

96 — 99

°C

(205 — 210

°F)

100

°C (212°F) or more

Operation of radiator fan

Operation of radiator fan

Operation of radiator fan

19 km/h (12 MPH) or 

less

OFF

OFF

Low-Speed

High-Speed

Low

Low-Speed

Low-Speed

High-Speed

High

High-Speed

High-Speed

High-Speed

20 — 69 km/h

(12 — 43 MPH)

OFF

OFF

Low-Speed

High-Speed

Low

High-Speed

High-Speed

High-Speed

High

High-Speed

High-Speed

High-Speed

70 — 105 km/h

(43 — 65 MPH)

OFF

OFF

Low-Speed

High-Speed

Low

OFF

Low-Speed

High-Speed

High

Low-Speed

High-Speed

High-Speed

106 km/h (66 MPH) 

or more

OFF

OFF

OFF

High-Speed

Low

OFF

Low-Speed

High-Speed

High

OFF

Low-Speed

High-Speed

CO(H4DOTC)-4

COOLING

General Description

B: COMPONENT

1. WATER PUMP

(1)

Thermostat cover

(6)

Heater by-pass hose

Tightening torque: N

⋅

m (kgf-m, ft-lb)

(2)

Gasket

(7)

Coolant filler tank by-pass hose

T1: 6.4 (0.65, 4.7)

(3)

Thermostat

(8)

Water by-pass pipe

T2: First 12 (1.2, 8.9)

Second 12 (1.2, 8.9)

(4)

Water pump ASSY

(5)

Gasket

T3: 12 (1.2, 8.9)

CO-02140

T3

(1)

(3)

(6)

(7)

(8)

(4)

(2)

(5)

T1

T3

T2

T2

CO(H4DOTC)-5

COOLING

General Description

2. RADIATOR AND RADIATOR FAN

(A)

(A)

C

CO-02141

C

B

T1

T4

T2

T2

T3

T3

T1

T3

T3

(30)

(29)

(5)

(8)

(9)

(7)

(5)

(10)

(28)

(32)

(12)

(11)

(14)

(5)

(5)

(6)

(5)

(1)

(2)

(3)

(4)

(31)

(25)

(26)

(5)

(33)

(15)

(15)

(15)

(15)

(19)

(20)

(21)

(24)

(13)

(27)

(15)

(18)

(21)

(20)

(23)

(15)

(15)

(15)

(15)

(22)

T3

T3

(B)

(B)

B

CO(H4DOTC)-6

COOLING

General Description

C: CAUTION

• Wear work clothing, including a cap, protective
goggles and protective shoes during operation.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust and dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly and replacement.
• Be careful not to burn yourself, because each
part on the vehicle is hot after running.
• Be sure to tighten fasteners including bolts and
nuts to the specified torque.
• Place shop jacks or rigid racks at the specified
points.
• Before disconnecting connectors of sensors or
units, be sure to disconnect the ground cable from
battery.

(A)

To automatic transmission

(16)

ATF hose A (Model without ATF 
warmer)

(26)

O-ring

(B)

To ATF filter

(27)

Engine coolant filler tank

(1)

Radiator lower cushion

(17)

ATF hose B (Model without ATF 
warmer)

(28)

Radiator cap (Engine coolant filler 
tank cap)

(2)

Radiator

(3)

Radiator upper cushion

(18)

ATF pipe (Model without ATF 
warmer)

(29)

Engine overflow hose

(4)

Radiator upper bracket

(30)

Engine air breather hose

(5)

Clamp

(19)

ATF pipe (Model with ATF warmer)

(31)

Radiator lower bracket

(6)

Radiator inlet hose

(20)

ATF hose C (Model with ATF 
warmer)

(32)

Overflow hose B

(7)

Engine coolant reservoir tank cap

(33)

Heat shield cover (Model without 
ATF warmer)

(8)

Overflow hose A

(21)

ATF hose D (Model with ATF 
warmer)

(9)

Engine coolant reservoir tank

(10)

Overflow pipe

(22)

ATF hose E (Model without ATF 
warmer)

Tightening torque: N

⋅

m (kgf-m, ft-lb)

(11)

Radiator sub fan shroud

T1: 3.4 (0.35, 2.5)

(12)

Radiator main fan shroud

(23)

ATF hose F (Model without ATF 
warmer)

T2: 5.0 (0.5, 3.7)

(13)

Radiator sub fan ASSY

T3: 7.5 (0.76, 5.5)

(14)

Radiator main fan ASSY

(24)

Radiator outlet hose

T4: 12 (1.2, 8.9)

(15)

ATF hose clamp (AT model)

(25)

Radiator drain plug