2007 INFINITI M35 Factory Service Manual

trailer towing fuel cap release lane assist transmission oil tires

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INFINITI M35 2007 Factory Service Manual CO-40
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ENGINE COOLANT
Revision: 2007 April2007 M35/M45
ENGINE COOLANTPFP:KQ100
InspectionNBS004RE
LEVEL CHECK
Check if the reservoir tank engine coolant level is within the
“MIN” to “MA

CO-40
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ENGINE COOLANT
Revision: 2007 April2007 M35/M45
ENGINE COOLANTPFP:KQ100
InspectionNBS004RE
LEVEL CHECK
Check if the reservoir tank engine coolant level is within the
“MIN” to “MAX” when engine is cool.
Adjust the engine coolant level as necessary.
LEAK CHECK
To check for leaks, apply pressure to the cooling system with
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 thermostat housing.
CAUTION:
Higher testing pressure than specified may cause radiator
damage.
NOTE:
In a case engine coolant decreases, replenish radiator with engine coolant.
If anything is found, repair or replace damaged parts.
Changing Engine CoolantNBS004RF
WARNING:
To avoid being scalded, do not change engine coolant when 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 pressure. Then turn radiator cap all the way.
DRAINING ENGINE COOLANT
1. Remove engine room cover (RH and LH). Refer to EM-173, "ENGINE ROOM COVER" .
2. Remove engine cover with power tool. Refer to EM-179, "
INTAKE MANIFOLD" .
3. Open radiator drain plug at the bottom of radiator, and then
remove radiator cap.
When draining all of engine coolant in the system, open
water drain plugs on cylinder block. Refer to EM-253, "
DIS-
ASSEMBLY" .
4. Remove reservoir tank as necessary, and drain engine coolant
and clean reservoir tank before installing.
5. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated,
flush the engine cooling system. Refer to CO-42, "
FLUSHING COOLING SYSTEM" .
REFILLING ENGINE COOLANT
1. Install reservoir tank if removed, and radiator drain plug.
SMA412B
Testing pressure: 157 kPa (1.6 kg/cm2 , 23 psi)
PBIC5121J
1 : Radiator drain plug hole
2 : Front engine undercover
: Engine front
PBIC3395E

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INFINITI M35 2007 Factory Service Manual ENGINE COOLANT
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CAUTION:
Be sure to clean radiator drain plug and install with new O-ring.
If water drain plugs on cylinder blo

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INFINITI M35 2007 Factory Service Manual CO-42
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ENGINE COOLANT
Revision: 2007 April2007 M35/M45
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 con

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INFINITI M35 2007 Factory Service Manual RADIATOR
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Revision: 2007 April2007 M35/M45
RADIATORPFP:21400
ComponentsNBS004RG
Refer to GI-11, "Components" for symbols in the figure.
Removal and Installati

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INFINITI M35 2007 Factory Service Manual CO-44
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RADIATOR
Revision: 2007 April2007 M35/M45
CAUTION:
Perform this step when the engine is cold.
Do not spill engine coolant on drive belts.
4. Remove the A/C piping bracket from left si

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INFINITI M35 2007 Factory Service Manual RADIATOR
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INSPECTION AFTER INSTALLATION
Check for leaks of engine coolant using radiator cap tester adapter (commercial servic

RADIATOR
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INSPECTION AFTER INSTALLATION
Check for leaks of engine coolant using radiator cap tester adapter (commercial service tool) and radiator
cap tester (commercial service tool). Refer to CO-40, "
LEAK CHECK" .
Start and warm up engine. Visually Check if there is no leaks of engine coolant and A/T fluid.
Checking Radiator CapNBS004RI
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
(commercial service tool) (B) and the radiator cap tester (com-
mercial service tool) (A), apply engine coolant to the cap seal
surface.
Replace radiator cap if there is an unusualness.
CAUTION:
When installing a radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorNBS004RJ
Check radiator for mud or clogging. If necessary, clean radiator as follows:
Be careful not to bend or damage the radiator fins.
When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
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.
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)
PBIC5122J

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INFINITI M35 2007 Factory Service Manual CO-46
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RADIATOR
Revision: 2007 April2007 M35/M45
Use compressed air lower than 490 kPa (5 kg/cm2 , 71 psi) and keep distance more than 30 cm (11.81
in).
5. Blow air again into all the radia

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INFINITI M35 2007 Factory Service Manual RADIATOR (ALUMINUM TYPE)
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RADIATOR (ALUMINUM TYPE)PFP:21460
ComponentsNBS004RK
Disassembly and AssemblyNBS004RL
PREPARATION
1.

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