Page 1081 of 3924
![INFINITI FX35 2008 Service Manual
CO-10
< SERVICE INFORMATION >[VQ35DE]
ENGINE COOLANT
ENGINE COOLANT
InspectionINFOID:0000000001325845
LEVEL CHECK
Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX INFINITI FX35 2008 Service Manual
CO-10
< SERVICE INFORMATION >[VQ35DE]
ENGINE COOLANT
ENGINE COOLANT
InspectionINFOID:0000000001325845
LEVEL CHECK
Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX](/manual-img/42/57017/w960_57017-1080.png)
CO-10
< SERVICE INFORMATION >[VQ35DE]
ENGINE COOLANT
ENGINE COOLANT
InspectionINFOID:0000000001325845
LEVEL CHECK
Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
Adjust the engine coolant level as necessary.
LEAK CHECK
To check for leaks, apply pressure to the cooling system with the
radiator cap tester (commercial service tool) (A) and radiator cap
tester adapter (commercial service tool) (B).
WARNING:
Do not remove radiator cap when engine is hot. Serious burns
could occur from high-pressure engine coolant escaping from
radiator.
CAUTION:
Higher test pressure than speci fied may cause radiator damage.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.
If anything is found, repair or replace damaged parts.
Changing Engine CoolantINFOID:0000000001325846
WARNING:
To avoid being scalded, do not change en gine coolant when the engine is hot.
Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressu re. Then turn radiator cap all the way.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tool.
2. Open radiator drain plug at the bottom of radiator, and then
remove radiator cap.
When draining all of engine cool ant in the system, open water drai n plugs on cylinder block. Refer
to EM-123, "
Disassembly and Assembly".
SMA412B
Testing pressure
: 157 kPa (1.6 kg/cm
2, 23 psi)
PBIC5121J
SBIA0444E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 1082 of 3924
![INFINITI FX35 2008 Service Manual
ENGINE COOLANTCO-11
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
4. Che INFINITI FX35 2008 Service Manual
ENGINE COOLANTCO-11
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
4. Che](/manual-img/42/57017/w960_57017-1081.png)
ENGINE COOLANTCO-11
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
4. Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush the engine cooling sys tem. Refer to "FLUSHING COOLING SYSTEM".
REFILLING ENGINE COOLANT
1. Install reservoir tank if removed, 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-123, "
Dis-
assembly and Assembly".
2. Make sure that each hose clamp has been firmly tightened.
3. Remove air relief plug on heater hose.
4. Fill radiator, and reservoir tank if removed, to specified level. Pour engine coolant through engine coolant filler neck
slowly of less than 2 (2-1/8 US qt, 1-3/4 lmp qt) a minute
to allow air in system to escape.
Use Genuine NISSAN Long Li fe Antifreeze/Coolant or
equivalent mixed with water (dis tilled or demineralized).
Refer to MA-9, "
Fluids and Lubricants".
When engine coolant overflows air relief hole on heater hose, install air relief plug with new O-ring.
5. Install radiator cap.
6. Warm up until opening thermostat. Standard for warm ing-up time is approximately 10 minutes at 3,000
rpm.
Make sure thermostat opening condition by touching r adiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
7. Stop the engine and cool down to less than approximately 50 °C (122 °F).
Radiator drain plug:
: 1.18 N·m (0.12 kg-m, 10 in-lb)
SBIA0445E
Engine coolant capacity
(With reservoir tank at “MAX” level): Approximately 8.6 (9-1/8 US qt, 7-5/8 lmp qt)
SMA182B
Reservoir tank engine coolant capacity
(At “MAX” level): 0.8 (7/8 US qt, 3/4 lmp qt)
Air relief plug: : 1.19 N·m (0.12 kg-m, 11 in-lb)
SMA412B
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 1083 of 3924
![INFINITI FX35 2008 Service Manual
CO-12
< SERVICE INFORMATION >[VQ35DE]
ENGINE COOLANT
Cool down using fan to reduce the time.
If necessary, refill radiator up to filler neck with engine coolant.
8. Refill reservoir tank to “MA INFINITI FX35 2008 Service Manual
CO-12
< SERVICE INFORMATION >[VQ35DE]
ENGINE COOLANT
Cool down using fan to reduce the time.
If necessary, refill radiator up to filler neck with engine coolant.
8. Refill reservoir tank to “MA](/manual-img/42/57017/w960_57017-1082.png)
CO-12
< SERVICE INFORMATION >[VQ35DE]
ENGINE COOLANT
Cool down using fan to reduce the time.
If necessary, refill radiator up to filler neck with engine coolant.
8. Refill reservoir tank to “MAX” level line with engine coolant.
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 the 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 step 4 through 7 until engine coolant level no
longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed, and radiator drain plug.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-123, "
Dis-
assembly and Assembly".
2. Remove air relief plug on heater hose.
3. Fill radiator with water until water spills from the ai r relief hole, then close air relief plug. Fill radiator and
reservoir tank with water and reinstall radiator cap.
4. Run the engine and warm it up to normal operating temperature.
5. Rev the engine two or three times under no-load.
6. Stop the engine and wait until it cools down.
7. Drain water from the system. Refer to "DRAINING ENGINE COOLANT".
8. Repeat steps 1 through 7 until clear water begins to drain from radiator. Radiator drain plug:
: 1.18 N·m (0.12 kg-m, 10 in-lb)
SBIA0445E
Air relief plug: : 1.19 N·m (0.12 kg-m, 11 in-lb)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 1084 of 3924
![INFINITI FX35 2008 Service Manual
RADIATORCO-13
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
RADIATOR
ComponentINFOID:0000000001325847
Refer to
GI-8, "Component" for symbols in the figure.
Removal and Installat INFINITI FX35 2008 Service Manual
RADIATORCO-13
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
RADIATOR
ComponentINFOID:0000000001325847
Refer to
GI-8, "Component" for symbols in the figure.
Removal and Installat](/manual-img/42/57017/w960_57017-1083.png)
RADIATORCO-13
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
RADIATOR
ComponentINFOID:0000000001325847
Refer to
GI-8, "Component" for symbols in the figure.
Removal and InstallationINFOID:0000000001325848
REMOVAL
WARNING:
Do not remove radiator cap when en gine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator. Wrap a thick cloth aroun d the cap. Slowly turn it a quarter of a turn to
release built-up pressure. Carefully remove ra diator cap by turning it all the way.
1. Remove front engine undercover with power tool.
2. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
Perform this step when the engine is cold.
Do not spill engine coolant on drive belts.
3. Remove air duct (inlet) and air cleaner case assembly. Refer to EM-17, "
Component".
1. Reservoir tank cap 2. Reservoir tank 3. Reservoir tank hose
4. Clamp (reservoir tank hose) 5. Clamp (radiator hose) 6. Radiator hose (upper)
7. Radiator upper mount bracket 8. Mounting rubber (upper) 9. Radiator cap
10. Radiator 11. Mounting rubber (lower) 12. O-ring
13. Drain plug 14. Radiator hose (lower) 15. Clamp (A/T fluid cooler hose)
16. A/T fluid cooler hose 17. Radiator cooling fan assembly 18. Reservoir tank bracket
A. To water outlet B. To A/T fluid cooler tube C. To water inlet
JPBIA0989GB
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 1085 of 3924
![INFINITI FX35 2008 Service Manual
CO-14
< SERVICE INFORMATION >[VQ35DE]
RADIATOR
4. Remove reservoir tank and reservoir tank bracket.
5. Disconnect A/T fluid cooler hoses from radiator.
Install blind plug to avoid leakage of A/T fl INFINITI FX35 2008 Service Manual
CO-14
< SERVICE INFORMATION >[VQ35DE]
RADIATOR
4. Remove reservoir tank and reservoir tank bracket.
5. Disconnect A/T fluid cooler hoses from radiator.
Install blind plug to avoid leakage of A/T fl](/manual-img/42/57017/w960_57017-1084.png)
CO-14
< SERVICE INFORMATION >[VQ35DE]
RADIATOR
4. Remove reservoir tank and reservoir tank bracket.
5. Disconnect A/T fluid cooler hoses from radiator.
Install blind plug to avoid leakage of A/T fluid.
6. Removal radiator hoses (upper and lower) and reservoir tank hose. CAUTION:
Be careful not to allow engine coolant to contact drive belts.
7. Remove radiator cooling fan assembly. Refer to CO-20, "
Component".
8. Rotate two radiator upper mount brackets 90 degrees in the direction shown in the figure, and remove them.
9. Lift up and remove radiator. CAUTION:
Do not damage or scratch A/C condenser and radiator core
when removing.
INSTALLATION
Installation is the reverse order of removal.
INSPECTION AFTER INSTALLATION
Check for leaks of engine coolant using the radiator cap tester adapter (commercial service tool) and the
radiator cap tester (commercial service tool). Refer to CO-10, "
Inspection".
Start and warm up the engine. Visually make sure t hat there is no leaks of engine coolant and A/T fluid.
Checking Radiator CapINFOID:0000000001325849
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.
SBIA0447E
SBIA0448E
PBIC2816E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 1086 of 3924
![INFINITI FX35 2008 Service Manual
RADIATORCO-15
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
Pull negative-pressure valve to open it, and make sure that it close
completely when released.
- Make sure that there INFINITI FX35 2008 Service Manual
RADIATORCO-15
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
Pull negative-pressure valve to open it, and make sure that it close
completely when released.
- Make sure that there](/manual-img/42/57017/w960_57017-1085.png)
RADIATORCO-15
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
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 radi-
ator cap negative-pressure valve.
- Make sure that there are no unusualness in the opening and clos- ing conditions of negative-pressure valve.
Check radiator cap relief pressure.
- When connecting radiator cap to the radiator cap tester (commer- cial service tool) (A) and the radi ator cap tester adapter (commer-
cial service tool) (B), apply engine coolant to the cap seal surface.
Replace radiator cap if there is an unusualness related to the above three.
CAUTION:
When installing radiator cap, thor oughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorINFOID:0000000001325850
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 radiator cooling fan assem-
bly 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 surfaces 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/cm
2, 71 psi) and keep distance more than 30 cm (11.81
in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.
SMA967B
Standard:
78 - 98 kPa (0.8 - 1.0 kg/cm
2, 11 - 14 psi)
Limit:
59 kPa (0.6 kg/cm
2, 9 psi)
PBIC5122J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 1087 of 3924
CO-16
< SERVICE INFORMATION >[VQ35DE]
RADIATOR (ALUMINUM TYPE)
RADIATOR (ALUMINUM TYPE)
ComponentINFOID:0000000001325851
Disassembly and AssemblyINFOID:0000000001325852
PREPARATION
1. Attach spacer to tip of the
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 the radiator plate pl iers A [SST: KV99103510 ( — )] 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 the 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)
PBIC2539E
SLC655CB
SLC903-A
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
Page 1088 of 3924
RADIATOR (ALUMINUM TYPE)CO-17
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
Grip the crimped edge and bend it upwards so that the radiator
plate pliers B [SST: KV99103520 ( — )] slips off.
CAUTION:
Do not bend excessively.
In areas where the radiator plate pliers B [SST: KV99103520 ( — )] cannot be used, use a 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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C