automatic transmission INFINITI QX56 2008 Factory Owner's Manual

PRECAUTIONSTM-175
< PRECAUTION >
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• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or reassembly.
• Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
• It is very important to perform func tional tests whenever they are indicated.
• The valve body contains precision parts and requires extreme care when parts are removed and serviced. Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
• Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
• Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in pl ace during assembly. Do not use grease.
• Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
• Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to TM-
182, "A/T Fluid Cooler Cleaning".
• After overhaul, refill the transmission with new ATF.
• When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque con- verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
TM-180, "
Changing the A/T Fluid (ATF)".
Service Notice or PrecautionINFOID:0000000001531487
ATF COOLER SERVICE
• If A/T fluid contains fictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiat or or replace the radiator. Flush cooler lines with
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to TM-182,
"A/T Fluid Cooler Cleaning". For radiator replacement, refer to CO-15, "Removal and Installation".
CHECKING AND CHANGING A/T FLUID
• Increase ATF oil temperature to 80 °C (176° F) first, then check and adjust oil level at 65 °C (149° F).
NOTE:
The A/T has both water cooling and air cooling systems. The air cooling system has a bypass valve. When
ATF oil temperature is at or below 50 °C (122° F), it does not flow through the air cooled system. If A/T oil
level is adjusted without flow throughout the entir e system, the level will be 10mm lower than required.
Therefore, all piping should be filled with oil when adjusting level.
OBD-II SELF-DIAGNOSIS
• A/T self-diagnosis is performed by the TCM in combination with the ECM. Refer to the table on TM-32,
"CONSULT-III Function (TRANSMISSION)" for the indicator used to display each self-diagnostic result.
• The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memo- ries.
Always perform the procedure on TM-30, "
OBD-II Diagnostic Trouble Code (DTC)" to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to TM-30
.
• Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For descrip tion and how to disconnect, refer to PG-65
.
Revision: March 2010 2008 QX56

TM-180
< ON-VEHICLE MAINTENANCE >
A/T FLUID
Changing the A/T Fluid (ATF)
INFOID:0000000004917425
CAUTION:
If using the vehicle for towing, the A/T fl uid must be replaced as specified. Refer to MA-8, "
Introduc-
tion of Periodic Maintenance".
1. Drive the vehicle to warm up the A/T fluid to approximately 80 ° C (176 ° F).
2. Stop the engine.
3. Remove the A/T fluid level gauge.
4. Drain the A/T fluid from the drain plug hole, then install the drain plug with a new gasket. Refill the transmission with new A/T
fluid. Always refill with the same volume as the drained A/T fluid.
Use the A/T fluid level gauge to check the A/T fluid level as
shown. Add A/T fluid as necessary.
• To flush out the old A/T fluid from the transmission oil coolers, pour new A/T fluid into the A/T fluid charg-
ing pipe with the engine idling and at the same time drain the old A/T fluid from the auxiliary transmis-
sion oil cooler hose return line.
• When the color of the A/T fluid coming out of the auxiliary transmission oil cooler hose return line is
about the same as the color of the new A/T fluid, flushing out the old A/T fluid is complete. The amount
of new A/T fluid used for flushing should be 30% to 50% increase of the specified capacity.
CAUTION:
• Use only Genuine NISSAN Matic J ATF and do not mix with other fluids.
• Using A/T fluid other than Genuine NISSAN Mati c J ATF will cause deterioration in driveability
and automatic transmission durability, and may damage the automatic transmission, which is
not covered by the warranty.
• When filling the transmission with A/T fluid, do not spill the A/T fluid on any heat generating parts such as the exhaust manifold.
• Do not reuse the drain plug gasket.
5. Install the A/T fluid level gauge and tighten the A/T fluid level gauge bolt to specification.
6. Drive the vehicle to warm up the A/T fluid to approximately 80 ° C (176 ° F).
7. Check the fluid level and condition. If the A/T fluid is still dirty, repeat steps 2 through 6.
8. Install the A/T fluid level gauge in the A/T fluid charging pipe and install the A/T fluid level gauge bolt.
9. Tighten the A/T fluid level gauge bolt to specification. Drain plug : Refer to
TM-220, "
Component".
LLIA0071E
A/T fluid grade and capacity : Refer to MA-12, "Fluids and Lubricants".
A/T fluid level
gauge bolt : Refer to TM-214, "
Removal and Installation (2WD)" or TM-216, "Removal and
Installation (4WD)".
LLIA0071E
Revision: March 2010
2008 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)TM-291
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000004917905
• *1: Refer to MA-12, "Fluids and Lubricants".
• *2: The fluid capacity is the reference value. Check the fluid level with A/T fluid level gauge.
Vehicle Speed at Which Gear Shifting OccursINFOID:0000000004917906
• At half throttle, the accelerator opening is 4/8 of the full opening.
Vehicle Speed at Which Lock-up Occurs/ReleasesINFOID:0000000004917907
• At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal OFF)
• At half throttle, the accelerator opening is 4/8 of the full opening. Applied model
2WD4WD
Automatic transmission model RE5R05A
Transmission model code number 95X8D95X8E
Stall torque ratio 2.0 : 1
Transmission gear ratio 1st
3.827
2nd 2.368
3rd 1.520
4th 1.000
5th 0.834
Reverse 2.613
Recommended fluid Genuine NISSAN Matic J ATF
*1
Fluid capacity10.6 liter (11-1/4 US qt, 9-3/8 Imp qt)*2
CAUTION:
• Use only Genuine NISSAN Matic J ATF. Do not mix with other fluid.
• Using ATF other than Genuine NISSAN Matic J ATF will cause deterioration driveability and A/ T durability, and may damage
the A/T, which is not covered by the NISSAN new vehicle limited warranty.
Throttle position Vehicle speed km/h (MPH)
D1→D2D2→ D3D3→D4D4→D5D5→D4D4→D3D3→D2D2→D1
Full throttle 57 – 61
(35 – 38) 93 – 101
(58 – 63) 140 – 150
(87 – 93) 202 – 212
(126 – 132) 198 – 208
(123 – 129) 130 – 140
(81 – 87) 79 – 87
(49 – 54) 31 – 35
(19 – 22)
Half throttle 39 – 43
(24 – 27) 71 – 77
(44 – 48) 108 – 116
(67 – 72) 139 – 147
(86 – 91) 105 – 113
(65 – 70) 47 – 55
(29 – 34) 30 – 36
(19 – 22) 9 – 13
(6 – 8)
Final gear ratio Throttle position Vehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
2.937 Closed throttle
65 - 73 (40 - 45) 62 - 70 (39 - 44)
Half throttle 177 - 185 (110 - 115) 136 - 144 (85 - 90)
3.357 Closed throttle
57 - 65 (35 - 40) 54 - 62 (34 - 39)
Half throttle 161 - 169 (100 - 105) 118 - 126 (74 - 79)
Revision: March 2010 2008 QX56