2002 TOYOTA AVENSIS thermostat

160N2±01
P13560
P00436
10mm
A51911
± COOLINGCOOLING SYSTEM (1AZ±FE)
16±15
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve opening tempera-
ture.
(a) Immerse the thermostat in water and gradually heat the
water.
(b) Check the valve opening temperature of the thermostat.
Valve opening temperature:
80 to 84C (176 to 183F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c) Check the valve lift.
Valve lift: 10 mm (0.394 in.) or more at 95C (203F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve is fully closed when the thermostat
is at low temperatures (below 77C (171F)).
If not closed, replace the thermostat.
2. INSPECT RADIATOR CAP SUB±ASSY
NOTICE:

If the radiator cap is contaminatied, rinse it with water.

Before using a radiator cap tester, wet the relief valve
and the pressure valve with engine coolant or water.

When performing following steps (a) and (b), keep the
tester at an angle of over 30 above horizontal.

160MZ±01
P35001
P00436
10mm
A51911
± COOLINGCOOLING SYSTEM (1AZ±FSE)
16±27
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve opening tempera-
ture.
(a) Immerse the thermostat in water an gradually heat the
water.
(b) Check the valve opening temperature of the thermostat.
Valve opening temperature:
86 to 90C (187 to 198F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c) Check the valve lift.
Valve lift: 10 mm (0.394 in.) or more at 100C (212F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve is fully closed when the thermostat
is at low temperatures (below 83C (181F)).
If not closed, replace the thermostat.
2. INSPECT RADIATOR CAP SUB±ASSY
NOTICE:

If the radiator cap is contaminatied, rinse it with water.

Before using a radiator cap tester, wet the relief valve
and the pressure valve with engine coolant or water.

When performing following steps (a) and (b), keep the
tester at an angle of over 30 above horizontal.

160N7±01
B08008
CO0929
B08007
8.5mm
± COOLINGCOOLING SYSTEM (1CD±FTV)
16±39
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve opening tempera-
ture.
(a) Immerse the thermostat in water and gradually heat the
water.
(b) Check the valve opening temperature of the thermostat.
Valve opening temperature:
80 to 84C (176 to 183F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c) Check the valve lift.
Valve lift: 8.5 mm (0.33 in.) or more at 95C (203F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve is fully closed when the thermostat
is at low temperatures (below 77C (171F)).
If not closed, replace the thermostat.
2. INSPECT RESERVE TANK CAP SUB±ASSY
NOTICE:

If the radiator cap is contaminatied, rinse it with water.

Before using a radiator cap tester, wet the relief valve
and the pressure valve with engine coolant or water.

When performing following steps (a) and (b), keep the
tester at an angle of over 30 above horizontal.

160N5±01
P13560
P00436
P24125
10mm
± COOLINGCOOLING SYSTEM (1ZZ±FE/3ZZ±FE)
16±3
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT THERMOSTAT
HINT:
The valve opening temperature is inscribed on the thermostat.
(a) Immerse the thermostat in water and gradually heat the
water.
(b) Check the valve opening temperature.
Valve opening temperature:
80 to 84C (176 to 183F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c) Check the valve lift.
Valve lift: 10 mm (0.39 in.) or more at 95C (203F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve is fully closed when the thermostat
is at low temperatures (below 77C (171F)).
If not closed, replace the thermostat.
2. INSPECT RADIATOR CAP SUB±ASSY
NOTICE:

If the radiator cap is contaminatied, rinse it with water.

Before using a radiator cap tester, wet the relief valve
and the pressure valve with engine coolant or water.

When performing following steps (a) and (b), keep the
tester at an angle of over 30 above horizontal.

16±20
±
COOLING ENGINE COOLANT(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
2.ADD ENGINE COOLANT
(a)Tighten the radiator drain plug, and pour coolant into radiator until it \
overflows. Capacity:
Transmission typeSteeringCoolant Capacity
[liters (US gts, lmp. gts)]
M/TLHD6.0 (6.3, 5.3)
M/TRHD6.1 (6.4, 5.4)
A/TLHD6.3 (6.7, 5.5)
A/TRHD6.4 (6.8, 5.6)
NOTICE:

Do not use an alcohol type coolant or plain water alone.

The coolant should be mixed with plain water (preferably demineralized wat\
er or distilled wa-
ter).
HINT:

Use of improper coolants may damage engine cooling system.

Use ºToyota Long Life Coolantº or equivalent and mix it with plain water ac\
cording to the manufactur-
er's directions.

Using of coolant with includes more than 50 % (freezing protection down to ±\
35 C (±31 F)) or 60 %
(freezing protection down to ±50 C (±58 F)) of ethylene±glycol is recommended but not more than
70 %.

Press the radiator inlet and outlet hose several times with hard.

If the coolant level gets lower, pour coolant.
(b)Reinstall the radiator cap.
(c)Pour engine coolant into the reservoir tank until it reaches full line.
(d)Warm up the engine until the thermostat valve begins to open.
HINT:
Press the radiator inlet and outlet hose several times with hard during \
the warming up.
(e)Stop the engine and wait until the coolant temp. Gets cold. Then remove the radiator cap to check the coolant level.
HINT:

If the level gets lower, perform the procedures above again.

If the level does not gets lower, adjust the reservoir tank coolant level.
3.CHECK FOR ENGINE COOLANT LEAKS (See page 16±13)

16±32
±
COOLING ENGINE COOLANT(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
2.ADD ENGINE COOLANT
(a)Tighten the radiator drain plug, and pour coolant into radiator until it \
overflows. Capacity:
Transmission typeSteeringCoolant Capacity
[liters (US gts, lmp. gts)]
M/TLHD6.0 (6.3, 5.3)
M/TRHD6.1 (6.4, 5.4)
A/TLHD6.3 (6.7, 5.5)
A/TRHD6.4 (6.8, 5.6)
NOTICE:

Do not use an alcohol type coolant or plain water alone.

The coolant should be mixed with plain water (preferably demineralized wat\
er or distilled wa-
ter).
HINT:

Use of improper coolants may damage engine cooling system.

Use ºToyota Long Life Coolantº or equivalent and mix it with plain water ac\
cording to the manufactur-
er's directions.

Using of coolant with includes more than 50 % (freezing protection down to ±\
35 C (±31 F)) or 60 %
(freezing protection down to ±50 C (±58 F)) of ethylene±glycol is recommended but not more than
70 %.

Press the radiator inlet and outlet hose several times with hard.

If the coolant level gets lower, pour coolant.
(b)Reinstall the radiator cap.
(c)Pour engine coolant into the reservoir tank until it reaches full line.
(d)Warm up the engine until the thermostat valve begins to open.
HINT:
Press the radiator inlet and outlet hose several times with hard during \
the warming up.
(e)Stop the engine and wait until the coolant temp. Gets cold. Then remove the radiator cap to check the coolant level.
HINT:

If the level gets lower, perform the procedures above again.

If the level does not gets lower, adjust the reservoir tank coolant level.
3.CHECK FOR ENGINE COOLANT LEAKS(See page 16±25)

160MD±01
A79169
Water Drain
Plug
Radiator Drain Plug
A63951
A
B 16±44
± COOLINGENGINE COOLANT (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
ENGINE COOLANT (1CD±FTV)
REPLACEMENT
1. DRAIN ENGINE COOLANT
(a) Remove the radiator cap.
(b) Loosen the radiator and engine drain plugs, drain the
coolant.
(c) Close the drain plugs.
Torque: 13 N
m (133 kgf
cm, 10 ft
lbf) for engine
2. ADD ENGINE COOLANT
(a) Loosen air bleed valve A.
(b) Fill the cooling system with coolant up to line B.
Capacity:
With heater: 7.6 liters (8.0 US qts, 6.7 lmp. qts)
Without heater: 7.4 liters (7.8 US qts, 6.5 lmp. qts)
HINT:

Use of improper coolants may damage engine cooling
system.

Use ºToyota Long Life Coolantº or equivalent and mix it
with plain water according to the manufacturer's instruc-
tion.

Using of coolant which includes more than 50 % (freezing
protection down to ±35C (±31F)) or 60 % (freezing
protection down to ±50C (±58F)) of ethylene±glycol is
recommended but not more than 70 %.
(c) Tighten the air bleed valve securely.
(d) Install the radiator cap securely.
(e) Warm up the engine.
HINT:
Warm up the engine with the speed of 2,000 rpm or more and
keep the warm±up until the thermostat has open and the radia-
tor reservoir has become hot.
(f) Run the engine intermittently for 5 seconds at 3,000 rpm
and for 45 seconds at idle.
(g) Do the above operation for 7 minutes or more.
(h) After the engine has become cold, check that the coolant
level is between LOW and FULL lines.

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)