2002 TOYOTA AVENSIS oil leak

3201B±12
32±2
±
BRAKE BRAKE SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers \
indicate the probability of the
problems in descending order. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
Low pedal or spongy pedal
3. Fluid leaks in brake system
4. Air in brake system
5. Piston seals (Worn or damaged)
6. Brake master cylinder (faulty)
7. Brake booster push rod (Out of adjustment) ±
32±4
32±41
32±47
32±13
32±13
Brake drag
1. Brake pedal free play (Minimal)
2. Parking brake lever travel (Out of adjustment)
3. Parking brake wire (Sticking)
4. Disk brake pad (Cracked or distorted)
5. Piston (Stuck or Frozen)
6. Brake booster push rod (Out adjustment)
7. Vacuum leaks in brake booster system
8. Brake master cylinder (Faulty)32±6
33±2
33±2
32±41
32±47
32±41
32±47
32±13
32±17
32±21
32±13
Brake pull
1. Piston (Stuck or Frozen)
2. Pad or lining (Oily)
3. Disc (Scored)
4. Pad (Cracked or distorted) 32±41
32±47
32±41
32±47
32±41
32±47
32±41
32±47
Hard pedal but brake inefficient
1. Fluid leaks in brake system
2. Air in brake system
3. Pad (Worn)
4. Pad (Cracked or distorted)
5. Pad (Oily)
6. Pad (Glazed)
7. Disc (Scored)
8. Booster push rod (Out of adjustment)
9. Vacuum leaks for booster system ±
32±4
32±41
32±47
32±41
32±47
32±41
32±47
32±41
32±47
32±41
32±47
32±13
32±17
32±21

F45419
Cylinder Slide Pin
Lithium soap base glycol grease
F45421
Union Bolt
±
BRAKE FRONT BRAKE
32±45
AVENSIS REPAIR MANUAL (RM1018E)
24. INSTALL FRONT DISC BRAKE CYLINDER SLIDE PIN
KIT
(a) Apply lithium soap base glycol grease to the a new front
disc brake cylinder slide bush.
(b) Install the front disc brake cylinder slide bush to the bot- tom side of the front disc brake cylinder slide pin (No.2).
(c) Apply lithium soap base glycol grease to the sliding part
and the sealing surface of the 2 cylinder slide pins.
(d) Install the 2 front disc brake cylinder slide pins to the front disc brake cylinder mounting LH.
25. INSTALL FRONT DISC BRAKE PAD KIT
(a) Install the 2 front disc brake pad support plates (No.1) and 2 front disc bra\
ke pad support plates (No.2) to the front disc brake cylinder mounting LH.
(b) Install the disc brake pad kit front to the front disc brake cylinder mo\
unting LH.
NOTICE:
There should be no oil or grease on the friction surfaces of the pads an\
d the disc.
26. INSTALL DISC BRAKE CYLINDER ASSY LH
(a) Install the disc brake cylinder assy LH with the 2 bolts.Torque: 30 N
m (306 kgf
cm, 22 ft
lbf)
(b) Install a new gasket and flexible hose with the union bolt.
Torque: 29 N
m (296 kgf
cm, 21 ft
lbf)
HINT:
Install the flexible hose lock securely in the lock hole in the disc
brake cylinder assy LH.
27.FILL RESERVOIR WITH BRAKE FLUID (See page 32±4)
28.BLEED MASTER CYLINDER (See page 32±4)
(a) w/o VSC: SST 09023±00100
(b) w/ VSC: SST 09023±38400
29.BLEED BRAKE LINE (See page 32±4)
30.CHECK FLUID LEVEL IN RESERVOIR (See page 32±4)
31. CHECK BRAKE FLUID LEAKAGE
32. INSTALL FRONT WHEEL
Torque: 103 N
m (1,050 kgf
cm, 76 ft
lbf)

160N1±01
A78433
± COOLINGCOOLING SYSTEM (1AZ±FE)
16±13
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1AZ±FE)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) Pump it to 137 kPa (1.4 kgf/cm
2, 19.9 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

160MY±01
A78433
± COOLINGCOOLING SYSTEM (1AZ±FSE)
16±25
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1AZ±FSE)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) Pump it to 118 kPa (1.2 kgf/cm
2, 17.1 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

160N6±01
A78434
Radiator Cap Tester
± COOLINGCOOLING SYSTEM (1CD±FTV)
16±37
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1CD±FTV)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) Pump it to 137 kPa (1.4 kgf/cm
2, 19.9 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

160N4±01
A79037
± COOLINGCOOLING SYSTEM (1ZZ±FE/3ZZ±FE)
16±1
AVENSIS REPAIR MANUAL (RM1018E)
COOLING SYSTEM (1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
1. INSPECT COOLING SYSTEM FOR LEAKS
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot. Ther-
mal expansion will cause hot engine coolant and steam to
blow out from the radiator.
(a) Remove the radiator support opening cover.
(b) Remove the engine room cover side.
(c) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(d) Warm up the engine.
(e) Pump it to 118 kPa (1.2 kgf/cm
2, 17.1 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator and water
pump for leaks. If there are no signs or traces of external coolant
leaks, check the heater core, cylinder block and head.
(f) Reinstall the engine room cover side.
(g) Reinstall the radiator support opening cover.
2. CHECK ENGINE COOLANT LEVEL AT RESERVOIR
(a) The engine coolant level should be between the ºLOWº and ºFULLº lines, when the engine is cold.
If low, check for leaks and add ºToyota Long Life Coolantº or equivalent up to the ºFULLº line.
3. CHECK ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator.
(b) Check if there is any excessive deposits of rust or scale around the radiator cap and radiator filler hole;
the coolant should be free from oil.
If excessively dirty, replace the coolant.
(c) Reinstall the radiator cap.

1203V±03
B08075
12±16
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
EMISSION CONTROL SYSTEM (1CD±FTV)
ON±VEHICLE INSPECTION
1. VISUALLY INSPECT HOSES, CONNECTIONS AND
GASKETS
(a) Check for cracks, leak or damage.
HINT:
Separation of the engine oil dipstick, oil filler cap, PCV hose,
etc. may cause the engine to run improperly. Disconnection,
looseness or cracks in the parts of the air induction system be-
tween the throttle body and cylinder head will allow air suction
and cause the engine to run improperly.

A62836
1ZZ±FE
3ZZ±FE
12±2
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
4. VISUALLY INSPECT HOSES, CONNECTIONS AND
GASKETS
(a) Check for cracks, leaks or damage.
HINT:
Separation of the engine oil dipstick, oil filler cap, PCV hose,
etc. may cause the engine to run improperly. Disconnection,
looseness or cracks in the parts of the air induction system be-
tween the throttle body and cylinder head will allow air suction
and cause the engine to run improperly.