Lexus SC300 / Lexus SC400. Manual - part 711

7. INSTALL 

RADIATOR 

RESERVOIR 

TANK

(a)  Install the reservoir tank to the reservoir tank bracket.
(b)  Install the reservoir tank bracket with two bolts.

Torque: 4.9 N

⋅

m (50 kgf

⋅

cm, 43 in.

⋅

lbf)

(c)  Connect the following hoses:

(1)  Reservoir hose to water inlet housing
(2)  Reservoir hose to radiator

(d)  Connect the coolant level sensor connector.

8. INSTALL 

BATTERY

9. 

FILL ENGINE WITH COOLANT (See page 

CO–7

)

10.  FILL COOLING FAN RESERVOIR TANK WITH FLUID

(See pages 

CO–23

 and 24)

11.  START ENGINE AND CHECK FOR LEAKS
12.  INSTALL ENGINE UNDER COVER

–

COOLIING SYSTEM

Electronically Controlled Hydraulic Cooling Fan
(Hydraulic Motor)

CO–57

Oil Cooler

COMPONENTS FOR REMOVAL AND
INSTALLATION

REMOVAL OF OIL COOLER

1. 

REMOVE FENDER LINER

2. 

DISCONNECT PS OIL COOLER
Remove the two bolts, and disconnect the PS oil cooler from
cooling fan oil cooler.

3. 

DISCONNECT HOSES FROM OIL COOLER
Disconnect the following hoses:

(1)  Inlet hose (from reservoir tank)
(2)  Outlet hose (from hydraulic motor)

CO–58

–

COOLIING SYSTEM

Electronically Controlled Hydraulic 
Cooling Fan (Oil Cooler)

4. 

REMOVE OIL COOLER
Remove the three bolts and oil cooler.

INSPECTION OF OIL COOLER

INSPECT OIL COOLER
Check the oil cooler for damage or clogging.
If necessary, replace the oil cooler.

INSTALLATION OF OIL COOLER

(See Components on page 

CO–58

)

1. 

INSTALL OIL COOLER
Install the oil cooler with the three bolts.

Torque: 18 N

⋅

m (180 kgf

⋅

cm, 13 ft

⋅

lbf)

2. 

CONNECT HOSES FROM OIL COOLER
Connect the following hoses:

(1)  Inlet hose (from reservoir tank)
(2)  Outlet hose (from hydraulic motor)

3. 

INSTALL PS OIL COOLER
Install the oil cooler with the two bolts.

4. 

REMOVE FENDER LINER

5. 

FILL COOLING FAN RESERVOIR TANK WITH FLUID
(See pages 

CO–23

 and 24)

6. 

START ENGINE AND CHECK FOR LEAKS

–

COOLIING SYSTEM

Electronically Controlled Hydraulic 
Cooling Fan (Oil Cooler)

CO–59

Electronic Control Parts

(System Circuit)

(Cooling Fan ECU)
COMPONENTS FOR REMOVAL AND
INSTALLATION

CO–60

–

COOLIING SYSTEM

Electronically Controlled Hydraulic Cooling Fan
(Electronic Control Parts)