2003 TOYOTA AVENSIS check engine

160MD±01
A79169
Water Drain
Plug
Radiator Drain Plug
A63951
AB
16±44
±
COOLING ENGINE 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 ±35 C (±31 F)) or 60 % (freezing
protection down to ±50 C (±58 F)) 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.
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±
COOLING ENGINE COOLANT (1CD±FTV)
16±45
AVENSIS REPAIR MANUAL (RM1018E)
3. CHECK FOR ENGINE COOLANT LEAKS
(a) Fill the radiator with coolant and attach a radiator cap tester.
(b) Pump it to 137 kPa (1.4 kgf/cm
2,
19.9 psi), and check that the pressure does not drop.
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16±8
±
COOLINGENGINE 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)
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160MX±01
16±24
±
COOLINGRADIATOR 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)
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160MS±01
16±36
±
COOLINGRADIATOR 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)
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160MG±01
±
COOLINGRADIATOR 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)
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A79301
Upper Hook
Fan
Shroud
Radiator
16±12
±
COOLINGRADIATOR 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)
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160MQ±01
A56451
A77424
10
10

±
COOLINGTHERMOSTAT(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)
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