2002 TOYOTA AVENSIS Repair Manual

16±8
±
COOLING ENGINE COOLANT(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(d)Warm up the engine until the thermostat valve begins to open.
HINT:
Press the radiator inlet and outlet hose several times by hand during th\
e warming up.
(e)Stop the engine and wait until the coolant temperature gets cold. Then remov\
e the radiator cap to check the coolant level.

If the level gets lower, perform the procedures from (a) through (e) again.

If the level does not gets lower, fill the reservoir tank with engine coolant.
3.CHECK FOR ENGINE COOLANT LEAKS (See page 16±1)

160MX±01
16±24
±
COOLING RADIATOR ASSY(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
RADIATOR ASSY(1AZ±FE)
REPLACEMENT
1.DRAIN COOLANT (See page 16±19)
2.REMOVE RADIATOR SUPPORT OPENING COVER
3.REMOVE ENGINE ROOM COVER SIDE
4.REMOVE ENGINE UNDER COVER RH
5.DISCONNECT RADIATOR HOSE INLET
6.DISCONNECT RADIATOR HOSE OUTLET
7.REMOVE RADIATOR SUPPORT UPPER
(a)Disconnect the fan w/ motor wire harness, connector and the horn connect\
or.
(b)Remove 4 bolts, the nut and the radiator support.
8.REMOVE RADIATOR ASSY
(a)Remove 2 upper support, and radiator assembly
9.REMOVE RADIATOR SUPPORT LOWER
10.REMOVE FAN ASSY W/MOTOR
(a)Remove 6 bolts and fan w/motor.
11.INSTALL FAN ASSY W/MOTOR
12.INSTALL RADIATOR SUPPORT LOWER
13.INSTALL RADIATOR ASSY
14.INSTALL RADIATOR SUPPORT UPPER
(a)Install radiator support with 2 bolts. Torque: 19 N
m (194 kgf
cm,14 ft
lbf)
15.ADD COOLANT (See page 16±19)
16.INSPECT CHECK FOR ENGINE COOLANT LEAKS (See page 16±13)

160MS±01
16±36
±
COOLING RADIATOR ASSY(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
RADIATOR ASSY(1AZ±FSE)
REPLACEMENT
1.DRAIN COOLANT (See page 16±31)
2.REMOVE RADIATOR SUPPORT OPENING COVER
3.REMOVE ENGINE ROOM COVER SIDE
4.REMOVE ENGINE UNDER COVER RH
5.DISCONNECT RADIATOR HOSE INLET
6.DISCONNECT RADIATOR HOSE OUTLET
7.REMOVE RADIATOR SUPPORT UPPER
(a)Disconnect the fan w/ motor wire harness, connector and the horn connect\
or.
(b)Remove 4 bolts, the nut and the radiator support.
8.REMOVE RADIATOR ASSY
(a)Remove 2 upper support, and radiator assembly
9.REMOVE RADIATOR SUPPORT LOWER
10.REMOVE FAN ASSY W/MOTOR
(a)Remove 6 bolts and fan w/motor.
11.INSTALL FAN ASSY W/MOTOR
12.INSTALL RADIATOR SUPPORT LOWER
13.INSTALL RADIATOR ASSY
14.INSTALL RADIATOR SUPPORT UPPER
(a)Install radiator support with 2 bolts. Torque: 19 N
m (194 kgf
cm,14 ft
lbf)
15.ADD COOLANT (See page 16±31)
16.INSPECT CHECK FOR ENGINE COOLANT LEAKS (See page 16±25)

160MG±01
±
COOLING RADIATOR ASSY(1CD±FTV)
16±51
AVENSIS REPAIR MANUAL (RM1018E)
RADIATOR ASSY(1CD±FTV)
REPLACEMENT
1.DRAIN ENGINE COOLANT(See page 16±44)
2.REMOVE RADIATOR SUPPORT OPENING COVER
3.REMOVE ENGINE ROOM COVER SIDE
4.REMOVE RADIATOR RESERVE TANK ASSY(See page 16±50)
5.DISCONNECT RADIATOR HOSE INLET
6.DISCONNECT RADIATOR HOSE OUTLET
7.REMOVE RADIATOR ASSY
(a)Remove the 2 bolts and separate the relay box.
(b)Remove the 2 upper support and radiator assy.
8.REMOVE RADIATOR SUPPORT LOWER
9.REMOVE FAN ASSY W/MOTOR
(a)Remove the 2 bolts and the fan w/motor.
10.INSTALL FAN ASSY W/MOTOR
Torque: 7.5 N
m (76 kgf
cm, 66 in.
lbf)
11.INSTALL RADIATOR ASSY
(a)Install the 2 upper support and the radiator assembly to the vehicle. Torque: 19 N
m (194 kgf
cm, 14 ft
lbf)
(b)Install the 2 bolts and the relay box.
Torque: 5.3 N
m (54 kgf
cm, 47 in.
lbf)
12.INSTALL RADIATOR RESERVE TANK ASSY(See page 16±50)
13.ADD ENGINE COOLANT(See page 16±44)
14.CHECK FOR ENGINE COOLANT LEAKS(See page 16±44)

160MK±01
A76724
A79300Upper Hook
±
COOLING RADIATOR ASSY(1ZZ±FE/3ZZ±FE)
16±11
AVENSIS REPAIR MANUAL (RM1018E)
RADIATOR ASSY(1ZZ±FE/3ZZ±FE)
REPLACEMENT
1.REMOVE RADIATOR SUPPORT OPENING COVER (See page 14±27)
2.REMOVE ENGINE ROOM COVER SIDE (See page 14±27)
3.ENGINE UNDER COVER SUB±ASSY NO.1 (See page 14±27)
4.DRAIN ENGINE COOLANT (See page 16±1)
5. DISCONNECT RADIATOR HOSE INLET
(a) Disconnect the radiator hose inlet from the radiator.
6. DISCONNECT RADIATOR HOSE OUTLET
(a) Disconnect the radiator hose outlet from the radiator.
7. DISCONNECT OIL COOLER INLET TUBE NO.1 (A/T TRANSAXLE)
(a) Disconnect the oil cooler inlet tube from the radiator.
8. DISCONNECT OIL COOLER OUTLET TUBE NO.1 (A/T TRANSAXLE)
(a) Disconnect the oil cooler outlet tube from the radiator.
9. REMOVE RADIATOR ASSY
(a) Disconnect the fan connector and the 2 harness clamps.
(b) Remove the 2 bolts and the relay block.
(c) Remove the 2 bolts, the 2 radiator support upper and theradiator.
(d) Remove the 2 support radiator LWRs from the radiator.
(e) Pinch and push each upper hook on the fan shroud to re- lease and remove the fan shroud from the radiator.

A79301
Upper Hook
Fan
Shroud
Radiator
16±12
±
COOLING RADIATOR ASSY(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
10.INSTALL RADIATOR ASSY
(a)Align the 2 keyways of the fan shroud with the 2 keys lo- cated on the lower bottom of the radiator and fit them.
(b)Install the fan should to the radiator with the 2 upper hooks. You can hear ºclickº sounds when the hooks are
securely fitted.
(c)Install the 2 support radiator LWRs to the radiator.
(d)Install the radiator with the 2 bolts and 2 radiator support
uppers.
Torque: 19 N
m (194 kgf
cm, 14 ft
lbf)
(e)Install the relay block with the 2 bolts.
(f)Connect the fan connector and 2 harness clamps.
11.ADD ENGINE COOLANT (See page 16±7)
12.CHECK FOR ENGINE COOLANT LEAKS (See page 16±1)

160MQ±01
A56451
A77424
10
10

±
COOLING THERMOSTAT(1AZ±FSE)
16±35
AVENSIS REPAIR MANUAL (RM1018E)
THERMOSTAT(1AZ±FSE)
REPLACEMENT
1.DRAIN COOLANT (See page 16±31)
2.REMOVE RADIATOR SUPPORT OPENING COVER
3.REMOVE ENGINE ROOM COVER SIDE
4.REMOVE ENGINE UNDER COVER RH
5.REMOVE FAN AND GENERATOR V BELT (See page 14±185)
SST09249±63010
6.REMOVE GENERATOR ASSY (See page 19±20)
7.REMOVE WATER INLET
(a)Remove 2 nuts, and disconnect the water inlet from thecylinder block.
8.REMOVE THERMOSTAT 9.INSTALL THERMOSTAT
(a)Install a new gasket to the thermostat.
(b)Install the thermostat with the jiggle valve upward.
HINT:
The jiggle valve may be set within 10
on either side of the pre-
scribed position.
10.INSTALL WATER INLET
(a)Install the water inlet with 2 nuts. Torque: 9.0 N
m (92 kgf
cm,7 in.
lbf)
11.INSTALL GENERATOR ASSY (See page 19±20)
12.INSTALL FAN AND GENERATOR V BELT (See page 14±185) SST 09249±63010
13.ADD COOLANT (See page 16±31)
14.INSPECT CHECK FOR ENGINE COOLANT LEAKS(See page 16±25)

160MF±01
A79171
A79172
10
10

16±50
±
COOLING THERMOSTAT(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
THERMOSTAT(1CD±FTV)
REPLACEMENT
1.REMOVE RADIATOR SUPPORT OPENING COVER
2.REMOVE ENGINE ROOM COVER SIDE
3.DRAIN ENGINE COOLANT(See page 16±44)
4.REMOVE RADIATOR RESERVE TANK ASSY
(a)Disconnect the water by±pass hose No. 1 and water by±pass hose No.\
2.
(b)Remove the 2 bolts and the reserve tank assembly.
5.REMOVE RADIATOR HOSE OUTLET 6.REMOVE WATER INLET
(a)Remove the 2 bolts and the water inlet.
7.REMOVE THERMOSTAT 8.INSTALL THERMOSTAT
(a)Install a new gasket to the thermostat.
(b)Install the thermostat with the jiggle valve facing upward.
HINT:
The jiggle valve may be set within 10
on either side as shown
in the illustration.
9.INSTALL WATER INLET Torque: 8.8 N
m (90 kgf
cm,78 in.
lbf)
10.INSTALL RADIATOR RESERVE TANK ASSY
Torque: 6.0 N
m (61 kgf
cm,53 in.
lbf)
11.ADD ENGINE COOLANT(See page 16±44)
12.CHECK FOR ENGINE COOLANT LEAKS(See page 16±44)