2009 NISSAN LATIO service

ENGINE MAINTENANCE (MR18DE)
MA-27
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To check for leaks, apply pressure to the cooling system using suit-
able tool and Tool.
WARNING:
Never remove the radiator cap wh en the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
CAUTION:
Higher pressure than specified may cause radiator damage.
ENGINE COOLANT : Chang ing Engine Coolant INFOID:0000000004683274
WARNING:
• To avoid being scalded, do not change engine coolant when engine is hot.
• Wrap a thick cloth around radiator cap and carefully remove the cap. First, turn the cap a quarter of a
turn to release built-up pressure. Then turn the cap all the way.
CAUTION:
• Do not spill engine coolant on drive belt.
DRAINING ENGINE COOLANT 1. Open radiator drain plug (1) at the bottom of radiator, and then remove radiator cap.
• Front
When draining all of engine coolant in the system, open
water drain plug on cylinder block. Refer to EM-200 .
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
2. Remove reservoir tank as necessary, and drain engi ne coolant and clean reservoir tank before installing.
Refer to CO-38, " Component " .
3. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated, flush the engine cooling system.
REFILLING ENGINE COOLANT 1. Install the radiator drain plug. Install the reservoir tank and cylinder block drain plug, if removed for a total
system drain or for engine removal or repair.
• The radiator must be complete ly empty of coolant and water.
• Apply sealant to the threads of the cylinder blo ck drain plugs. Use Genuine High Performance
Thread Sealant or equivalent. Refer to GI-42, " Recommended Chemical Product and Sealant " .
2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heat er ON position. Turn the vehicle ignition ON with
the engine OFF as necessary to activate the heater mode. Tool number : EG17650301 (J-33984-A)
Testing pressure : 157 kPa (1.6 kg/cm 2
, 23 psi) WBIA0568E
PBIC3799E
Radiator drain plug : Refer to
CO-38, " Component " .
Cylinder block drain plug : Refer to EM-200, " Disassembly and Assembly " .

MA-28< SERVICE INFORMATION >
ENGINE MAINTENANCE (MR18DE)
4. Install the Tool by installing the radiator cap adapter onto the radiator neck opening. Then attach the gauge body assembly
with the refill tube and the venturi assembly to the radiator cap
adapter.
5. Insert the refill hose into the coolant mixture container that is placed at floor level. Make sure the ball valve is in the closed
position.
• Use Genuine NISSAN Long Life Anti-freeze coolant or
equivalent, mixed with distil led water or demineralized
water.
Refer to MA-15, " Anti-freeze Coolant Mixture Ratio " .
6. Install an air hose to the venturi assembly, the air pressure must be within specification.
CAUTION:
The compressed air supply must be equipped with an air dryer.
7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open the ball valve on the refill hose slightly. Coolant will be vi sible rising in the refill hose. Once the refill hose is
full of coolant, close the ball valve. This will purge any air trapped in the refill hose.
8. Continue to draw the vacuum until the gauge reaches 28 inches of vacuum. The gauge may not reach 28 inches in high altitude
locations, use the vacuum specifications based on the altitude
above sea level.
9. When the vacuum gauge has reached the specifi ed amount, disconnect the air hose and wait 20 seconds
to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the
system and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for any leaks.
10. Place the coolant container (with the refill hose insert ed) at the same level as the top of the radiator. Then
open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling
system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the coolant container to get too low when filling, to avoid air from being drawn into
the cooling system.
11. Remove the Tool from the radiator neck opening.
12. Fill the cooling system reservoir tank to the specif ied level and install the radiator cap. Run the engine to
warm up the cooling system and t op up the system as necessary.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed. Refer to CO-38, " Component " .
2. Install radiator drain plug. •If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-200, " Disas-
sembly and Assembly " .
Tool number : KV991J0070 (J-45695)
Engine coolant capacity
(with reservoir tank) : Refer to
MA-14, " Fluids
and Lubricants " .
Compressed air
supply pressure : 5.7 - 8.5 kPa (5.6 - 8.4 kg/cm
2
,
80 - 120 psi) LLIA0058E
Altitude above sea level Vacuum gauge reading
0 - 100 m (328 ft) : 28 inches of vacuum
300 m (984 ft) : 27 inches of vacuum
500 m (1,641 ft) : 26 inches of vacuum
1,000 m (3,281 ft) : 24 - 25 inches of vacuum LLIA0057E

ENGINE MAINTENANCE (MR18DE)
MA-29
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CAUTION:
Be sure to clean radiator drain plug and install with new O-ring. Refer to CO-38, " Component " .
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.
8. Repeat steps 1 through 7 until clear water begins to drain from radiator.
FUEL LINES
FUEL LINES : Checking Fuel Line INFOID:0000000004683691
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loos e connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
AIR CLEANER FILTER
AIR CLEANER FILTER : Component INFOID:0000000004683692 SMA803A
1. Air cleaner filter 2. Holder 3. Air cleaner cover
4. Seal 5. Mass air flow sensor 6. Air duct
7. PCV hose 8. Air duct (Inlet) 9. Air duct (Front) WBIA0770E

MA-30< SERVICE INFORMATION >
ENGINE MAINTENANCE (MR18DE)
AIR CLEANER FILTER : Changing Air Cleaner Filter INFOID:0000000004685431
REMOVAL
1. Push the tabs (A) of both ends of the air cleaner cover (1) into the inside (B).
2. Pull up the air cleaner cover forward (C) and remove it.
3. Remove the air cleaner filter (1) and holder (2) assembly from the air cleaner case.
4. Remove the air cleaner filter (1) from the holder (2).
INSPECTION AFTER REMOVAL
It is necessary to replace it at the recommended interv als, more often under dusty driving conditions. Refer to
MA-9 .
INSTALLATION
Installation is in the reverse order of removal.
• Install the air cleaner cover (1) in the direction shown.
• Air cleaner filter (2)
• Holder (3)
ENGINE OIL
ENGINE OIL : Inspection INFOID:0000000004683694
ENGINE OIL LEVEL
NOTE:
Park vehicle on a level surface, wait 10 minutes and check the engine oil level.
1. Pull out oil level gauge and wipe it clean. 10. Clip 11. Resonator 12. Grommet
13. Air cleaner case A. To electric throttle control actuator B. To rocker cover PBIC3557J
PBIC3558J
PBIC3559J

ENGINE MAINTENANCE (MR18DE)
MA-31
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2. Insert oil level gauge and make sure the engine oil level is within
the range (A) as shown.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE • Check engine oil for white milky or excessive contamination.
• If engine oil becomes white, it is highly probable t hat it is contaminated with engine coolant. Repair or
replace damaged parts.
ENGINE OIL LEAKAGE Check for engine oil leakage around the following areas:
• Oil pan (upper and lower)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Intake valve timing control solenoid valve
• Front cover
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seals (front and rear)
• Oil filter (for intake valve timing control)
OIL PRESSURE CHECK WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• For engine oil pressure check the transaxle should be in “ Park position” (A/T models) and (CVT
models) or “Neutral position” (M/T mode ls), and apply the parking brake securely.
1. Check engine oil level.
2. Remove undercover using power tool.
3. Disconnect harness connector at oil pressure switch (1), and remove oil pressure switch using a suitable tool.
• Oil pan (lower) (2)
• ⇐ Front
CAUTION:
Do not drop or shock oil pressure switch. WBIA0776E
PBIC3310E

MA-32< SERVICE INFORMATION >
ENGINE MAINTENANCE (MR18DE)
4. Install oil pressure gauge and hose.
5. Start engine and warm it up to normal operating temperature.
6. Check oil pressure with engine running under no-load. Refer to LU-22, " Standard and Limit " .
If difference is extreme, check oil passage and oil pump for oil leaks.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to specification. Use Genuine Silicone RTV Sealant or equivalent. Refer to GI-42, " Recommended Chemical Product
and Sealant " .
c. Check engine oil level.
d. After warming up engine, make sure there are no leaks of engine oil with running engine.
ENGINE OIL : Changing Engine Oil INFOID:0000000004683695
WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• Prolonged and repeated contact with used engine oil may cause ski n cancer. Try to avoid direct skin
contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand cleaner as
soon as possible.
1. Warm up the engine, park vehicle on a level surface and check for engine oil leakage from engine compo- nents. Refer to MA-30, " ENGINE OIL : Inspection " .
2. Stop the engine and wait for 10 minutes. Tool number : ST25051001 (J-25695-1)
: ST25052000 (J-25695-2) WBIA0571E
Oil pressure switch : 14.7 N·m (1.5 kg-m, 11 ft-lb)

ENGINE MAINTENANCE (MR18DE)
MA-33
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3. Loosen oil filler cap (1) and then remove drain plug (2).
• Oil filter (3)
• : Engine front
4. Drain engine oil.
5. Install drain plug (2) with new washer. Refer to EM-147, " Com-
ponent " .
CAUTION:
Be sure to clean drain plug (2 ) and install with new washer.
6. Refill with new engine oil. Refer to MA-14 .
CAUTION:
• The refill capacity depends on the engine oil temperature
and drain time. Use these sp ecifications for reference
only.
• Always use oil level gauge to determine the proper amount of engine oil in the engine.
7. Warm up engine and check area around drain plug (2) and oil fil- ter (3) for engine oil leakage.
8. Stop engine and wait for 10 minutes.
9. Check the engine oil level. Refer to MA-30, " ENGINE OIL :
Inspection " .
OIL FILTER
OIL FILTER : Remova l and Installation INFOID:0000000004683696
REMOVAL 1. Remove oil filter using Tool (A). • : Front
WARNING:
• Be careful not to get burned when engine and engine oil
may be hot.
CAUTION:
• Oil filter is provided with relief valve. Use Genuine NISSAN Oil Filter or equivalent.
• When removing, prepare a s hop cloth to absorb any
engine oil leakage or spillage.
• Do not spill engine oil on drive belt.
• Completely wipe off any engine oil that spills on engine and vehicle.
INSTALLATION 1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply new engine oil to the oil seal contact surface of new oil fil- ter. PBIC3915E
Tool number : KV10115801 (J-38956)
PBIC3818E
SMA010

MA-34< SERVICE INFORMATION >
ENGINE MAINTENANCE (MR18DE)
3. Screw oil filter manually until it touches the installation surface,
then tighten it by 2/3 turn. Or tighten to specification.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to MA-30, " ENGINE OIL : Inspection " .
2. Start engine, and make sure there are no leaks of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level and adjust as necessary. Refer to MA-30, " ENGINE OIL : Inspection " .
SPARK PLUG
SPARK PLUG : Component INFOID:0000000004683697
Oil filter: : 17.7 N·m (1.8 kg-m, 13 ft-lb) SMA229B
1. PCV hose 2. Rocker cover 3. Spark plug
4. Ignition coil 5. PCV hose 6. PCV valve
7. O-ring 8. Gasket
A. To air duct B. Refer to MA-35 . C. To intake manifold PBIC3536J