2007 NISSAN TIIDA Cooling

ENGINE COOLANT
CO-13
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3. Fill radiator and reservoir tank with water and reinstall radiator cap.
4. Run engine and warm it up to normal operating temperature.
5. Rev engine two or three times under no-load.
6. Stop engine and wait until it cools down.
7. Drain water from the cooling system. Refer to CO-11, "
Changing Engine Coolant".
8. Repeat steps 1 through 7 until clear water begins to drain from radiator.

CO-14
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RADIATOR
RADIATOR
Checking Radiator CapINFOID:0000000001534602
 Check valve seat of radiator cap.
- Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
- Check if valve seat has no soil and damage.
 Pull negative-pressure valve to open it, and make sure that it is
completely closed when released.
- Make sure that there is no dirt or damage on the valve seat of radi-
ator cap negative-pressure valve.
- Make sure that the valve operates properly in the opening and
closing conditions.
 Check radiator cap relief pressure using suitable tool.
- When connecting the radiator cap to the tester, apply water or
coolant to the cap seal surface.
- Replace the radiator cap if there is an abnormality in the negative-
pressure valve, or if the open-valve pressure is outside of the stan-
dard values.
 Replace radiator cap if there it does not comply to specifications to the above three checks.
CAUTION:
When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorINFOID:0000000001534603
Check radiator for mud or clogging. If necessary, clean radiator as follows.
 Be careful not to bend or damage radiator fins.
 When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator shroud
and horns. Then tape harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward.
 Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm
2, 71 psi) and keep distance more than 30 cm
(11.8 in).
PBIC2816E
SMA967B
Standard: 78 – 98 kPa (0.78 - 0.98 bar, 0.8 – 1.0 kg/cm2, 11
– 14 psi)
Limit: 59 kPa (0.59 bar, 0.6 kg/cm
2, 9 psi)
WBIA0570E

CO-16
< ON-VEHICLE REPAIR >[HR16DE]
RADIATOR
ON-VEHICLE REPAIR
RADIATOR
ComponentINFOID:0000000001534605
Removal and InstallationINFOID:0000000001534606
WARNING:
1. Reservoir tank cap 2. Reservoir tank 3. Radiator hose (upper)
4. Mounting rubber (upper) 5. Radiator cap 6. Reservoir tank hose
7. Radiator 8. A/T fluid cooler hose 9. Mounting rubber (lower)
10. O-ring 11. Radiator drain plug 12. A/T fluid cooler hose
13. Radiator hose (lower) 14. Cooling fan assembly
A. To water outlet B. To A/T C. To water inlet
D. M/T models E. Models with A/C
AWBIA0128GB

CO-18
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COOLING FAN
COOLING FAN
Component (Models with A/C)INFOID:0000000001534607
Component (Models without A/C)INFOID:0000000001534608
1. Fan motor cover 2. Fan motor 3. Cooling fan control module
4. Washer 5. Fan shroud 6. Washer
7. Cooling fan A. Apply on fan motor shaft Front
PBIC4538E
1. Fan motor 2. Fan shroud 3. Cooling fan
A. Apply on fan motor shaft Front
WBIA0786E

COOLING FAN
CO-19
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Removal and InstallationINFOID:0000000001534609
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-11, "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-27, "
Exploded View".
3. Remove reservoir tank.
4. Disconnect radiator hose (upper) at radiator side. Refer to CO-16, "
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-4, "
Engine Cooling System".
CAUTION:
Be careful not to damage or scratch the radiator core.

CO-26
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
COOLING FAN
DISASSEMBLY AND ASSEMBLY
COOLING FAN
DISASSEMBLY AND ASSEMBLYINFOID:0000000001534610
Disassembly
1. Remove cooling fan from fan motor.
2. Remove fan motor from fan shroud.
Inspection After Disassembly
Inspect cooling fan for crack or unusual bend.
 If anything is found, replace cooling fan.
Assembly
Assembly is the reverse order of disassembly.

CO-28
< FUNCTION DIAGNOSIS >[MR18DE]
COOLING SYSTEM
FUNCTION DIAGNOSIS
COOLING SYSTEM
Cooling CircuitINFOID:0000000001337837
AWBIA0132ZZ
1. Radiator 2. Reservoir tank 3. Water inlet
4. Thermostat 5. Thermostat housing 6. Water pump
7. Cylinder head 8. Cylinder block 9. Water control valve

COOLING SYSTEM
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10. Water outlet 11. Heater 12. Oil cooler
13. Electronic throttle control actuator
A. Thermostat B. Water control valve C. Closed
D. Open E. To heater F. From radiator
G. To radiator H. From heater