drain bolt NISSAN LATIO 2008 Service User Guide

CO-12
< SERVICE INFORMATION >
RADIATOR
Do not remove radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a
turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-8, "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-16
.
3. Remove reservoir tank as follows:
a. Disconnect reservoir tank hose.
b. Release the tab (A) in the direction shown by the arrow ( ).
c. Lift up while removing the reservoir tank hose, and remove it.
4. Disconnect harness connector from fan motors, and move harness to aside.
5. Disconnect CVT or A/T fluid cooler hoses if equipped.
• Install plug to avoid leakage of CVT or A/T fluid if equipped.
6. Remove radiator hoses (upper and lower).
7. Remove radiator core support cover. Refer toBL-19
.
8. Remove radiator core support (upper) bolts, bolts of stationary
part on the radiator core support side and clip. Lift radiator from
radiator (upper) mount part of radiator core support (upper) (2).
9. Move radiator assembly (1) to the rearward direction of vehicle,
and then lift it upward to remove.
CAUTION:
Do not damage or scratch A/C condenser if equipped and
radiator core when removing.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
Do not damage or scratch A/C condenser if equipped and radiator core when removing.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to CO-8, "Inspection".
• Start and warm up engine. Visually check if there is no leaks of engine coolant and CVT or A/T fluid if
equipped. Refer to CVT-13
or AT- 1 5.
PBIC3800E
PBIC3805E

CVT FLUID
CVT-15
< SERVICE INFORMATION >
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3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any CVT fluid that remains in the cooler hoses to drain into
the oil pan.
5. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
• Wear safety glasses and rubber gloves when spraying the
Transmission Cooler Cleaner.
• Spray Transmission Cooler Cleaner only with adequate
ventilation.
• Avoid contact with eyes and skin.
• Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis-
sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until CVT fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet
hose.
9. Blow compressed air regulated to 5 to 9 kg/cm
2 (70 to 130 psi)
through the cooler outlet hose for 10 seconds to force out any
remaining CVT fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the CVT
fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the tran-
saxle by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 to 9 kg/cm
2 (70 to 130 psi) through each steel line from the cooler
side back toward the transaxle for 10 seconds to force out any remaining CVT fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform "CVT FLUID COOLER DIAGNOSIS PROCEDURE".
CVT FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position an oil pan under the transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.
SCIA4421E
SCIA4422E
SCIA4423E

EM-4
< SERVICE INFORMATION >
PRECAUTIONS
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for Drain CoolantINFOID:0000000001702463
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000001702464
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000001702465
• When instructed to use special service tools, use the specified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000001702466
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000001702467
• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
• Release air within route after draining coolant.
• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for
leakage.
Parts Requiring Angular TighteningINFOID:0000000001702468
• Use an angle wrench for the final tightening of the following engine parts:
- Cylinder head bolts
- Camshaft sprocket (INT)
- Main bearing cap bolts
- Connecting rod cap nuts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular
tightening)

EM-24
< SERVICE INFORMATION >
OIL PAN
OIL PAN
ComponentINFOID:0000000001702487
Removal and InstallationINFOID:0000000001702488
REMOVAL
WARNING:
• Be careful not to burn yourself, as the engine oil is hot.
• Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct skin
contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as
possible.
1. Oil level gauge 2. Oil level gauge guide 3. Rear oil seal
4. O-ring 5. Oil pan (upper) 6. Oil pump drive chain
7. Crankshaft sprocket 8. Oil pump sprocket 9. Timing chain tensioner (for oil pump)
10. Oil pump 11. Drain plug 12. Drain plug washer
13. Oil pan (lower) 14. Oil filter 15. Connector bolt
16. O-ring
A. Refer to EM-24
: Oil pan side
PBIC4482E

OIL PAN
EM-25
< SERVICE INFORMATION >
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1. Drain engine oil. Refer to LU-6.
2. Remove engine and transaxle assembly. Refer to EM-72
.
3. Remove oil filter using Tool.
CAUTION:
When removing, prepare a shop cloth to absorb any engine oil leakage or spillage.
4. Remove oil pan (lower) bolts in reverse order as shown.
5. After removing the bolts and nuts, separate the mating surface
and remove the sealant using Tool.
CAUTION:
Be careful not to damage the mating surfaces.
6. Remove the following parts:
• Flywheel (M/T models) or drive plate (A/T or CVT models); Refer to EM-76
.
• Front cover, timing chain, oil pump drive chain; Refer to EM-37
.
7. Remove oil pump.
• Loosen bolts in reverse order as shown.
8. Remove oil pan (lower) bolts in reverse order as shown.Tool number : KV10115801 ( — )
: Engine front
PBIC3146J
Tool number : KV10111100 (J-37228)
WBIA0566E
1: Oil pump
2 : Oil pan (upper)
: Engine front
PBIC3532J
: Engine front
PBIC3533J

CYLINDER HEAD
EM-63
< SERVICE INFORMATION >
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• If the engine speed is out of the specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
• If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.
• If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to re-check it for compression.
- If the added engine oil improves the compression, piston rings may be worn out or damaged. Check pis-
ton rings and replace if necessary.
- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.
• If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylinder
head gasket.
9. After inspection is completed, install removed parts.
10. Start the engine, and confirm that the engine runs smoothly.
11. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-81
.
ComponentINFOID:0000000001702502
Removal and InstallationINFOID:0000000001702503
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release the fuel pressure. Refer to EC-78, "
Fuel Pressure Check".
2. Drain engine coolant and engine oil. Refer to CO-8
and LU-6.
3. Remove front fender protector (RH). Refer to EI-23
.
4. Remove drive belt. Refer to EM-13, "
Removal and Installation".
5. Remove the following components and related parts.
• Exhaust manifold; Refer to EM-21
.
• Intake manifold; Refer to EM-18
.
• Fuel tube and fuel injector assembly; Refer to EM-33
.
1. Cylinder head assembly 2. Cylinder head bolt 3. Cylinder head gasket
A. Refer to EM-63
PBIC3542J

ENGINE ASSEMBLY
EM-73
< SERVICE INFORMATION >
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• Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shift of center of gravity.
• For supporting points for lifting and jacking point at rear axle, refer to GI-38, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Remove the engine and the transaxle assembly from the vehicle downward. Separate the engine and the tran-
saxle.
1. Remove engine undercover
2. Drain engine coolant from radiator. Refer to CO-8, "
Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
3. Remove front fender protector (RH and LH); Refer to EI-23
.
4. Remove exhaust front tube; Refer to EX-4
.
5. Remove drive shafts (LH and RH) from steering knuckle. Refer to FAX-8
.
6. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT-226
(A/T models),
CVT-178
(CVT) or MT-16 (M/T models).
7. Remove rear torque rod (1).
NOTE:
A/T model shown CVT and M/T models similar.
8. Remove hood assembly. Refer to BL-13
.
9. Remove cowl top cover and cowl top extension assembly. Refer to EI-21
.
10. Release fuel pressure. Refer to EC-78, "
Fuel Pressure Check".
11. Remove battery and battery tray; Refer to SC-4
.
12. Remove drive belt; Refer to EM-13, "
Component".
13. Remove air duct and air cleaner case assembly; Refer to EM-16
.
14. Remove cooling fan assembly.
15. Remove radiator hose (upper and lower). Refer to CO-11
.
16. Disconnect A/T, CVT fluid cooler hoses. Refer to CO-11
.
17. Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem-
porarily secure the engine harness into the engine side.
CAUTION:
Protect connectors using a resin bag to protect against foreign materials during the operation.
18. Disconnect fuel feed hose at engine side. Refer to EM-33, "
Component".
19. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-19,
"Component".
20. Disconnect control cable from transaxle. Refer to CVT-167
(CVT) or AT-203 (A/T), MT-13 (MT).
21. Remove ground cable at transaxle side.
22. Remove ground cable between front cover and vehicle.
23. Remove generator. Refer to SC-20
.
24. Remove A/C compressor with piping connected from the engine. Temporarily secure it on the vehicle side
with a rope to avoid putting load on it. Refer to MTC-78, "
Removal and Installation of Compressor".
25. Remove the intake manifold to prevent the hanging chain from interfering. Refer to EM-18, "
Component".
LBIA0460E

MT-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001703128
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Procedure without Cowl Top CoverINFOID:0000000001844076
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
PrecautionINFOID:0000000001703129
• If transaxle assembly is removed from the vehicle, always replace CSC (Concentric Slave Cylinder).
Installed CSC returns to the original position when removing transaxle assembly. Dust on clutch disc sliding
parts may damage CSC seal, and may cause clutch fluid leakage.
• Do not reuse transaxle oil.
• Drain, fill and check transaxle oil with the vehicle on level surface.
• During removal or installation, keep inside of transaxle clear of dust or dirt.
• Check for the correct installation orientation prior to removal or disassembly. If matching marks are required,
be certain they do not interfere with the function of the parts they are applied to.
• In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If tight-
ening sequence is specified, follow it.
• Be careful not to damage the sliding surfaces and mating surfaces of parts.
PIIB3706J

MT-16
< SERVICE INFORMATION >
TRANSAXLE ASSEMBLY
TRANSAXLE ASSEMBLY
Removal and InstallationINFOID:0000000001703141
CAUTION:
If transaxle assembly is removed from the vehicle, always replace CSC (Concentric Slave Cylinder).
Inserted CSC returns to the original position when removing transaxle assembly. Dust on clutch disc
sliding parts may damage CSC seal, and may cause clutch fluid leakage.
COMPONENTS
REMOVAL
1. Drain gear oil. Refer to MA-21, "Changing M/T Oil".
2. Drain clutch fluid and remove clutch tube from CSC. Refer to CL-9, "
Removal and Installation".
CAUTION:
Do not depress clutch pedal during removal procedure.
3. Remove engine and transaxle assembly. Refer to EM-72, "
Removal and Installation".
4. Remove starter motor. Refer to SC-19, "
Removal and Installation".
5. Remove transaxle assembly to engine bolts.
6. Separate transaxle assembly from engine.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
1. LH engine mount bracket (transaxle
side)2. Transaxle assembly 3. Rear engine mount bracket
4. Washer 5. Rear torque rod⇐Front
: Refer to MT-16, "
Removal and Installation".
SCIA7631E

MT-34
< SERVICE INFORMATION >
TRANSAXLE ASSEMBLY
31. Tighten bolts to specification.
32. Apply sealant to the threads of position switch (1). Then install it
into transaxle case and tighten to specification.
•Use Genuine Silicone RTV or equivalent.Refer to GI-42,
"Recommended Chemical Product and Sealant".
33. Install bracket (2), and tighten bolt to specification.
34. Install shift lever (3), and then install retaining pin using suitable
tool.
CAUTION:
Do not reuse retaining pin.
35. Install CSC onto clutch housing. Refer to CL-11, "
Removal and
Installation".
36. Install a new gasket onto drain plug, and then install it into clutch housing. Tighten drain plug to specifica-
tion.
37. Install a new gasket onto filler plug, and then install it into transaxle case. Tighten filler plug to specifica-
tion.
CAUTION:
• Do not reuse gasket.
• After oil is filled, tighten filler plug to specification.
PCIB1694E
SCIA7784E