2007 NISSAN TIIDA radiator

COOLING FAN
CO-43
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Removal and InstallationINFOID:0000000001337846
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-35, "Changing Engine Coolant".
CAUTION:
 Perform this step when engine is cold.
 Do not spill engine coolant on drive belt.
2. Remove air duct (inlet). Refer to EM-154, "
Component".
3. Remove reservoir tank.
4. Disconnect radiator hose (upper) at radiator side. Refer to CO-40, "
Component".
5. Disconnect harness connectors from fan motor, and move harness to aside.
6. Remove cooling fan assembly.
CAUTION:
Be careful not to damage or scratch the radiator core.
INSTALLATION
Installation is the reverse order of removal.
 Cooling fans are controlled by ECM. For details, refer to CO-28, "
Cooling Circuit".
CAUTION:
Be careful not to damage or scratch the radiator core.

THERMOSTAT
CO-45
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THERMOSTAT
ComponentINFOID:0000000001337850
Removal and InstallationINFOID:0000000001337851
REMOVAL
1. Drain engine coolant. Refer to CO-35, "Changing Engine Coolant".
2. Remove water inlet.
3. Remove thermostat.
4. Remove water pump. Refer to CO-44, "
Removal and Installation".
5. Remove thermostat housing.
INSPECTION AFTER REMOVAL
 Place a thread (A) so that it is caught in the valves of thermostat
(1). Immerse fully in a container (B) filled with water. Heat while
stirring.
 The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
 Continue heating. Check the full open valve lift amount.
 After checking the maximum valve lift amount, lower the water
temperature and check the valve closing temperature.
1. Thermostat housing 2. Water hose 3. Radiator hose (lower)
4. Water inlet 5. Thermostat 6. Rubber ring
7. Gasket A. To oil cooler B. To radiator
Engine front
PBIC4485E
PBIC3314J

WATER OUTLET AND WATER CONTROL VALVE
CO-47
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WATER OUTLET AND WATER CONTROL VALVE
ComponentINFOID:0000000001337852
Removal and InstallationINFOID:0000000001337853
REMOVAL
1. Drain engine coolant. Refer to CO-35, "Changing Engine Coolant".
CAUTION:
Perform this step when the engine is cold.
2. Remove air duct. Refer to EM-154, "
Component".
3. Remove radiator hose (upper). Refer to CO-40, "
Component".
4. Remove heater hoses and water hoses.
5. Remove water outlet.
6. Remove water control valve.
7. Remove engine coolant temperature sensor, if necessary.
CAUTION:
 Handle carefully to avoid any shock to engine coolant temperature sensor.
 Replace the gasket with a new one.
INSPECTION AFTER REMOVAL
1. Engine coolant temperature sensor 2. Rubber ring 3. Water control valve
4. Gasket 5. Water hose 6. Gasket
7. Water hose 8. Water outlet 9. Heater hose
10. Heater hose 11. Radiator hose (upper) 12. Water hose
A. To heater B. To electronic throttle control actuator C. To oil cooler
D. To radiator Front
WBIA0856E

SERVICE DATA AND SPECIFICATIONS (SDS)
CO-51
< SERVICE DATA AND SPECIFICATIONS (SDS) [MR18DE]
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000001337854
CAPACITY
Unit: (lmp qt)
THERMOSTAT
WATER CONTROL VALVE
RADIATOR
Unit: kPa (bar, kg/cm2, psi)
Engine coolant capacity (with reservoir tank at “MAX” level) Approx. 6.8 (6.0)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature 77°C (171°F)
Valve opening temperature 93.5 - 96.5°C (200 - 206°F)
Maximum valve lift 8 mm/ 108°C (0.315 in/ 226°F)
Valve closing temperature 90°C (194°F)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11- 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)

CO-52
< FUNCTION DIAGNOSIS >[K9K]
DESCRIPTION
FUNCTION DIAGNOSIS
DESCRIPTION
Engine Cooling SystemINFOID:0000000001381580
1. Engine 2. Radiator 3. Heater core
4. Reservoir tank 5. Water pump 6. Thermostat
7. Air relief plug 8. Oil cooler 9. EGR cooler
MBIB9046E

OVERHEATING CAUSE ANALYSIS
CO-53
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SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000001381581
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn timing belt
— Thermostat stuck closed —
Damaged finsDust contamination or pa-
per clogging
Mechanical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
Fan assembly — High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — — —
Improper coolant mixture
ratio———
Poor coolant quality — — —
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Reservoir tank capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into cool-
ing systemCylinder head deterioration
Cylinder head gasket deteri-
oration

CO-54
< SYMPTOM DIAGNOSIS >[K9K]
OVERHEATING CAUSE ANALYSIS
Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
— Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper —
— Blocked radiator grilleInstalled car brassiere
Mud contamination or paper
clogging
Blocked radiator —
Blocked condenser
—
Installed large fog lamp Symptom Check items

PREPARATION
CO-57
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PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000001381583
Commercial Service ToolsINFOID:0000000001381584
NISSAN tool number
(RENAULT tool number)
Tool nameDescription
—
(M.S. 554-07)
Reservoir tank cap tester
1. Adapter A
—
(M.S. 554-01)
2. Adapter B
—
(M.S. 554-06)Leak checking
Checking reservoir tank cap
K V 1 0 1111 0 0
(J-37228)
Seal cutterRemoving chain tensioner cover and water
pump cover
—
(J-23688)
Engine coolant refractometerChecking concentration of ethylene glycol in
engine coolant
E1BIA0058ZZ
NT046
WBIA0539E
NISSAN tool number
Tool nameDescription
Radiator cap tester Checking radiator and radiator cap
WS39930000
Tube pressurePressing the tube of liquid gasket
PBIC1982E
S-NT052