Page 1233 of 4462
![INFINITI FX35 2006 Service Manual ENGINE COOLANT CO-39
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
REFILLING ENGINE COOLANT
1. Install reservoir tank, and radiator drain plug. CAUTION:
Be s INFINITI FX35 2006 Service Manual ENGINE COOLANT CO-39
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
REFILLING ENGINE COOLANT
1. Install reservoir tank, and radiator drain plug. CAUTION:
Be s](/manual-img/42/57019/w960_57019-1232.png)
ENGINE COOLANT CO-39
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
REFILLING ENGINE COOLANT
1. Install reservoir tank, and radiator drain plug. CAUTION:
Be sure to clean radiator drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-253,
"ASSEMBLY" .
2. Make sure that each hose clamp has been firmly tightened.
3. Remove air relief plug on heater hose.
4. Fill thermostat housing and reservoir tank to specified level.
Refill engine coolant up to filler neck of thermostat housing.
Pour engine coolant through engine coolant filler neck slowly of less than 2 (2-1/8 US qt, 1-3/4
Imp qt) a minute to allow air in system to escape.
Use Genuine Nissan Long Life Antifreeze/Coolant or equivalent mixed with water (distilled or
demineralized). Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
When engine coolant overflows air relief hole on heater hose,
install air relief plug.
5. Install radiator cap.
6. Warm up until opening thermostat. Standard for warming-up time is approximately 10 minutes at 3,000 rpm.
Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
7. Stop engine and cool down to less than approximately 50 °C (122 °F).
Cool down using a fan to reduce the time.
If necessary, refill engine coolant up to filler neck of thermostat housing.
8. Refill reservoir tank to “MAX” level line with engine coolant. Radiator drain plug:
: 1.19 N·m (0.12 kg-m, 11 in-lb)
PBIC1530E
Engine coolant capacity
(With reservoir tank at “MAX” level):
Approx. 10.0 (10-5/8 US qt, 8-3/4 Imp qt)
Reservoir tank engine coolant capacity
(At “MAX” level):
0.8 (7/8 US qt, 3/4 lmp qt)
SMA412B
Page 1234 of 4462
![INFINITI FX35 2006 Service Manual CO-40
[VK45DE]
ENGINE COOLANT
Revision: 2006 December 2006 FX35/FX45
9. Repeat steps 4 through 7 two or more times with radiator cap installed until engine coolant level no longer drops.
10. Check co INFINITI FX35 2006 Service Manual CO-40
[VK45DE]
ENGINE COOLANT
Revision: 2006 December 2006 FX35/FX45
9. Repeat steps 4 through 7 two or more times with radiator cap installed until engine coolant level no longer drops.
10. Check co](/manual-img/42/57019/w960_57019-1233.png)
CO-40
[VK45DE]
ENGINE COOLANT
Revision: 2006 December 2006 FX35/FX45
9. Repeat steps 4 through 7 two or more times with radiator cap installed until engine coolant level no longer drops.
10. Check cooling system for leaks with engine running.
11. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000 rpm with heater temperature controller set at several position between “COOL” and “WARM”.
Sound may be noticeable at heater unit.
12. Repeat step 11 three times.
13. If sound is heard, bleed air from cooling system by repeating steps 4 through 7 until engine coolant level no longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-253,
"ASSEMBLY" .
2. Remove air relief plug on heater hose.
3. Fill thermostat housing with water until water spills from the air relief hole, then close air relief plug. Fill thermostat housing 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 system. Refer to CO-38, "
DRAINING ENGINE COOLANT" .
8. Repeat steps 1 through 7 until clear water begins to drain from radiator. Radiator drain plug:
: 1.19 N·m (0.12 kg-m, 11 in-lb)
PBIC1530E
Page 1235 of 4462
![INFINITI FX35 2006 Service Manual RADIATOR CO-41
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
RADIATORPFP:21400
ComponentsNBS005RW
Removal and InstallationNBS003KK
REMOVAL
WARNING:
Do not rem INFINITI FX35 2006 Service Manual RADIATOR CO-41
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
RADIATORPFP:21400
ComponentsNBS005RW
Removal and InstallationNBS003KK
REMOVAL
WARNING:
Do not rem](/manual-img/42/57019/w960_57019-1234.png)
RADIATOR CO-41
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
RADIATORPFP:21400
ComponentsNBS005RW
Removal and InstallationNBS003KK
REMOVAL
WARNING:
Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator. Wrap a thick cloth around radiator cap. Slowly turn it a quarter of a
turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
1. Remove engine cover with power tool. Refer to EM-173, "
ENGINE ROOM COVER" .
2. Remove engine front undercover with power tool.
3. Drain engine coolant from radiator. Refer to CO-38, "
Changing Engine Coolant" .
CAUTION:
Perform this step when engine is cold.
4. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly. Refer to EM-177, "
AIR
CLEANER AND AIR DUCT" .
5. Remove radiator hoses (upper and lower). CAUTION:
Do not spill engine coolant on drive belts.
1. Radiator 2. Upper mount bracket 3. Mounting rubber
4. Radiator hose (lower) 5. Radiator drain plug 6. O-ring
7. A/T fluid cooler hose 8. Radiator hose (upper) 9. Reservoir tank hose
10. Reservoir tank cap 11. Reservoir tank 12. Radiator shroud (lower)
13. Radiator shroud
PBIC1531E
Page 1236 of 4462
CO-42
[VK45DE]
RADIATOR
Revision: 2006 December 2006 FX35/FX45
6. Disconnect A/T fluid cooler hoses.
Install blind plug to avoid leakage of A/T fluid.
7. Remove radiator shroud (lower).
While pressing left and right pawls in direction indicated by
arrows, pull radiator shroud (lower) rearwards to remove.
8. Lift up and remove radiator shroud.
9. Remove washer tank mounting bolts.
10. Rotate two radiator upper mount brackets 90 degrees in the direction as shown in the figure, and remove them.
PBIC1532E
PBIC1535E
PBIC1534E
PBIC1533E
Page 1237 of 4462
![INFINITI FX35 2006 Service Manual RADIATOR CO-43
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
11. Lift up and remove radiator. CAUTION:
Do not damage or scratch A/C condenser and radiator co INFINITI FX35 2006 Service Manual RADIATOR CO-43
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
11. Lift up and remove radiator. CAUTION:
Do not damage or scratch A/C condenser and radiator co](/manual-img/42/57019/w960_57019-1236.png)
RADIATOR CO-43
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
11. Lift up and remove radiator. CAUTION:
Do not damage or scratch A/C condenser and radiator core
when removing.
INSTALLATION
Install in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to CO-38, "
LEAK CHECK" .
Start and warm up engine. Visually Check if there is no leaks of engine coolant and A/T fluid.
Checking Radiator CapNBS003KL
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
close completely when released.
–Make sure that there is no dirt or damage on the valve seat of
radiator cap negative-pressure valve.
–Make sure that there are no unusualness in the opening and
closing conditions of negative-pressure valve.
Check radiator cap relief pressure.
–When connecting radiator cap to the radiator cap tester adapter
(SST) and the radiator cap tester (Commercial service tool),
apply engine coolant to the cap seal surface.
Replace radiator cap if there is an unusualness.
PBIC1536E
PBIC2816E
SMA967B
Standard : 78 - 98 kPa (0.8 - 1.0 kg/cm2 , 11 - 14 psi)
Limit : 59 kPa (0.6 kg/cm
2 , 9 psi)
SLC755A
Page 1238 of 4462
![INFINITI FX35 2006 Service Manual CO-44
[VK45DE]
RADIATOR
Revision: 2006 December 2006 FX35/FX45
CAUTION:
When installing a radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Ch INFINITI FX35 2006 Service Manual CO-44
[VK45DE]
RADIATOR
Revision: 2006 December 2006 FX35/FX45
CAUTION:
When installing a radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Ch](/manual-img/42/57019/w960_57019-1237.png)
CO-44
[VK45DE]
RADIATOR
Revision: 2006 December 2006 FX35/FX45
CAUTION:
When installing a radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorNBS003KM
Check radiator for mud or clogging. If necessary, clean radiator as follows:
CAUTION:
Be careful not to bend or damage the radiator fins.
When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radi-
ator shroud and horns. Then tape the harness and electrical 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 (5 kg/cm2 , 71 psi) and keep distance more than 30 cm (11.8
in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.
Page 1239 of 4462
RADIATOR (ALUMINUM TYPE) CO-45
[VK45DE]
C
D E
F
G H
I
J
K L
M A
CO
Revision: 2006 December 2006 FX35/FX45
RADIATOR (ALUMINUM TYPE)PFP:21460
ComponentsNBS005RX
Disassembly and AssemblyNBS003KN
PREPARATION
1. Attach spacer to tip of radiator plate pliers A (SST). Spacer specification: 18 mm (0.71 in) wide × 8.5 mm (0.335 in)
long × 1.5 mm (0.059 in) thick.
2. Make sure that when radiator plate pliers A are closed dimension H ′′ is approx. 7.6 mm (0.299 in).
3. Adjust dimension H ′′ with spacer, if necessary.
DISASSEMBLY
1. Remove upper and lower tanks with radiator plate pliers B
(SST).
CAUTION:
Do not disassemble lower tank and A/T fluid cooler.
NOTE:
Regard lower tank and A/T fluid cooler as an assembly.
1. Upper tank 2. Sealing rubber 3. Core
4. Lower tank (with A/T fluid cooler)
PBIC2549E
SLC655CB
SLC903-A
Page 1240 of 4462
CO-46
[VK45DE]
RADIATOR (ALUMINUM TYPE)
Revision: 2006 December 2006 FX35/FX45
Grip the crimped edge and bend it upwards so that radiator
plate pliers B slips off.
CAUTION:
Do not bend excessively.
In areas where radiator plate pliers B cannot be used, use
flat-blade screwdriver to bend the edge up.
CAUTION:
Be careful not to damage tank.
2. Remove sealing rubber.
3. Make sure the edge stands straight up.
ASSEMBLY
1. Clean contact portion of tank.
SLC893
SLC930
SLC931
SLC932