Nissan GT-R (2007-2014 year). STEERING SYSTEM / TRANSAXLE & TRANSMISSION. Service Manual

HYDRAULIC LINE

ST-17

< REMOVAL AND INSTALLATION >

HYDRAULIC LINE

Exploded View

INFOID:0000000009160114

Clamp

Suction hose

Reservoir tank

Reservoir tank bracket

Bushing

Collar

Oil cooler

Pressure sensor

Eye bolt

10. Copper washer

11.

High pressure piping

12. Low pressure piping

13. O-ring

To power steering oil pump suction
piping.

To power steering oil pump.

: Vehicle front

Refer to

GI-4, "Components"

for symbols in the figure.

NNGIA0037GB

2014 GT-R

ST-18

< SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

INFOID:0000000009160115

Steering Wheel Axial End Play and Play

INFOID:0000000009160116

Unit: mm (in)

Steering Wheel Turning Torque

INFOID:0000000009160117

Unit: N·m (kg-m, in-lb)

EXCEPT TRACK PACK-SPECIFIC SUSPENSION

EXCEPT TRACK PACK-SPECIFIC SUSPENSION : Steering Angle

INFOID:0000000009160118

Unit: Degree minute (Decimal degree)

TRACK PACK-SPECIFIC SUSPENSION

TRACK PACK-SPECIFIC SUSPENSION : Steering Angle

INFOID:0000000009160119

Unit: Degree minute (Decimal degree)

Steering gear model

PR26AF

Fluid capacity (Approx.)

(US qt, lmp qt)

1.0 (1-1/8, 7/8)

Item

Standard

Steering wheel axial end play

0 (0)

Steering wheel play on the outer circumference

0 – 35 (0 – 1.38)

Item

Standard

Steering wheel turning force

7.45 (0.76, 66)

Item

Standard

Inner wheel

Minimum

′

(34.25

)

Nominal

′

(36.75

)

Maximum

′

(39.25

)

Outer wheel

Minimum

′

(28.42

)

Nominal

′

(30.92

)

Maximum

′

(33.41

)

Item

Standard

Inner wheel

Minimum

′

(34.17

)

Nominal

′

(36.67

)

Maximum

′

(39.16

)

Outer wheel

Minimum

′

(28.42

)

Nominal

′

(30.92

)

Maximum

′

(33.41

)

2014 GT-R

TM-2

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000009162733

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 AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that 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 “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Battery Service

INFOID:0000000009162734

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

Aluminum Die-Casting Parts Handling

INFOID:0000000009162735

PROHIBITION OF WELDING OR BEATING REPAIR

• Material made of aluminum die-casting parts is heat-treated and looses strength when being exposed to

welding heat. Do not perform welding repair for cracks, damage or others.

• For aluminum die-casting parts deformation, do not perform repair by beating. Always repair by replacement

as an assembly.

CRACK CHECK

When the vehicle is damaged, always perform a visual deformation check and a crack check.

Crack Check Procedures

For a crack check, use dye penetrant inspection fluid (pre-cleaning fluid, penetrant fluid and developer fluid).

CAUTION:

Always perform a crack check in accordance with the procedures specified by the manufacturer of the
dye penetrant inspection fluid.

Spray pre-cleaning fluid on the checking surface for cleaning.

Spray penetrant fluid on the checking surface and wait until the penetrant fluid soaks into any cracks.

2014 GT-R

PRECAUTIONS

TM-3

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

Wipe off excessive penetrant fluid, and then also lightly wipe off penetrant fluid using a wet cloth.

Spray developer fluid on the checking surface.

Cracks, if any, are dyed red in color.

STRAY CURRENT CORROSION

• Corrosion occurs to aluminum die-casting parts by the stray current corrosion phenomenon, when directly

contacting other parts made of steel. Always apply anti-stray current corrosion paint (primer) on the mount-
ing surface.

• Clean mounting surface to prevent any foreign matter, steel powder or others from being mixed in. Always

apply the specified adhesive when installing.

• Corrosion by stray current corrosion may occur when installing with any other bolts than the specified bolt.

Always use the specified bolt that is surface treated.

• When loosening the specified bolt that is tightened, the treated surface may peel. Never reuse the specified

bolt that is tightened once.

TIGHTENING TORQUE CONTROL

Material made of aluminum die-casting parts is soft in term of hardness. Tightening torque must be controlled
exactly as specified. Always use a torque wrench to install any part to the specified tightening torque.

WARNING:

Never use a power tool to remove or tighten bolts for aluminum die-casting part to prevent damage to
aluminum die-casting parts.

General Precautions

INFOID:0000000009162736

• Use “Genuine NISSAN Transmission oil R35 special”.
• Work in a clean workplace.
• Avoid using cotton gloves or a waste cloth to prevent the entry of lint. Use paper towel.
• Check for the correct status prior to removal and installation, disassembly and assembly.
• Use genuine NISSAN parts for replacement.
• Do not drop foreign matter into the transmission assembly inside.
• Check for damage, breakage and twist when replacing the O-ring and gaskets, etc.
• Check that no dirt is present on the mounting area when installing the parts.
• Check that tools and shop waste cloths are not left after finishing service work.
• Check and replace the oil level with the vehicle in a horizontal position.
• Do not reuse drained transmission oil.
• Treat the replaced transmission oil and cleaning oil as waste oil.

Precautions Before Performing Diagnosis

INFOID:0000000009162738

Check the following items before performing the diagnosis. Be careful that the applicable item may not always
be malfunctioning.

PRECAUTION FOR MECHANISM

2014 GT-R

TM-4

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

PRECAUTIONS

Mechanism

Symptom

Use conditions and constraint conditions

Manual transmission base

Similar to manual transmission vehicle, it adopts par-
allel axis gear, which generates collision sound. The
sound is louder than general torque converter type
automatic transmission due to reasons below.

Secures fairly large backlash in order to maintain lu-
brication capacity on gear surface in sport driving.

Adopts drysump lubrication method which enables a
stable oil supply even in sport driving.

Adopts light weight flywheel in order to improve ac-
celeration response.
It could rattle, clang, or make pouring noise especial-
ly after sport driving.

Clicking sound can be observed at shift operation.

If shift lever is changed from R to A, M or A, M to R
before vehicle stops, gear change could delay or
could not be operated.

The sound becomes small if the trans-
mission oil temperature falls.

—

Always operate it after footing on foot
brake and confirming that the vehicle
is absolutely stopped.

Wet-type multi-plate clutch

With the vehicle stationary and the shift lever in the A

⇔

M, or R range, when the brake pedal is released, the ve-
hicle enters the status just like partial engagement of
clutch in vehicles with manual transmission to prepare for
start-up, and starts moving slowly (or in some circum-
stances, it may not start at all).

Securely depress the brake pedal while the
vehicle is stopped.

If the brake pedal and the accelerator pedal are de-
pressed simultaneously, the clutch becomes overheated
to accelerate its wear and deterioration.

Restrict the simultaneous depression of the
brake pedal and the accelerator pedal.

If the vehicle is stopped by controlling the acceleration
pedal on uphill road, the clutch will be overheated like
manual transmission vehicle, which results in transmis-
sion damage or engine stall.

When stopping on a slope, depress the
brake pedal and do not perform a stopping
operation by depressing adjustment of the
accelerator pedal.

Electronically controlled hy-
draulic control

The following symptoms may occur by oil viscosity restric-
tion variations due to temperature change.
1.

Extremely high temperature after sport driving etc or
extremely low ambient temperature can change the
oil pressure response characteristics which can
generate slip feeling or shock.

At very low temperatures in winter, the system check
time may be prolonged by oil pressure response
characteristic variations.

After the normal temperature is re-
sumed, the slippage feeling and shock
is reduced.

During the system check, the shift le-
ver cannot be moved out from the P
position. Therefore, operate the shift
lever only after the system check indi-
cator turns off. In addition, operation
noise like a clank may be heard or the
engine speed may drop during the
system check, but they are not mal-
function.

Mode change

Since quick gear change is performed in M range, jerky
movement can be observed at start or at gear change.

—

In M range R mode, the gear change speed becomes
maximum at sport driving. Therefore, the gear change be-
comes slower at normal driving.

—

Rear final drive (mechanical
LSD)

If the vehicle accelerates from a stop with the steering
wheel widely turned in cold temperatures, the inner wheel
tire may slip and some noise or vibration may be heard.
This phenomenon occurs because the viscosity of the dif-
ferential oil becomes thicker and the Limited Slip Differen-
tial (LSD) operates with increasing strength.

When the steering wheel is returned to the
straight a head position or the differential oil
warms up, the noise and vibration de-
crease.

Transfer (E-TS)

If the vehicle accelerates from a stop with the steering
wheel widely turned in cold temperatures, it may be hard
to move the vehicle when the accelerator pedal is de-
pressed. This phenomenon is unique to AWD vehicles
and is caused by the speed difference between the front
and rear wheel. This is not a malfunction.

This phenomenon can be avoided by re-
turning the steering wheel to the straight
ahead position. The phenomenon can be
reduced if the transmission setup switch is
operated to switch to the 2WD mode only
when turning the steering wheel widely at
low speed.

2014 GT-R

PRECAUTIONS

TM-5

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

PRECAUTIONS FOR SYMPTOM

Lightweight flywheel

The application of light fry wheels enables engine re-
sponses to accelerator operation. Therefore, engine
speed varies widely, compared with conventional vehicles
and this may generate a rattling sound or chattering
sound.

—

At the engine start or stop, a rattle may be heard.

—

Mechanism

Symptom

Use conditions and constraint conditions

Symptom

Cause

Action

When or after
the engine
starts

The shift lever is not released from the P
range.

The system performs the system check of
transmission after the engine starts. There-
fore, the shift lever is not released from the
P range by shift lock even if the driver de-
presses the brake during the check. This is
normal. The system check time may be pro-
longed at low oil temperature.

Wait until the system
check finishes.

The vehicle cannot be driven after starting
the engine at the N range.

When the engine starts at the N range after
the engine stops at the driving range (A/M
or R range), the vehicle may not start for
safety. This is normal.
• Conditions that the vehicle cannot be

driven

- The engine starts at the N range after

stopping at the A/M range, and the R
range is selected

- The engine starts at the N range after

stopping at the R range, and the A/M
range is selected

If the engine starts at the
N range, the vehicle can
be driven by selecting
the desired driving
range after selecting the
P range once. Perform
the engine stop or start
at the P range for safety
reasons.

The gear shift takes time at low oil temper-
ature.

The oil viscosity is high and the oil flow re-
striction is large at low oil temperature, and
the oil pressure response takes time.

Smooth gear shift is re-
sumed, when the oil
temperature increases.

The engine speed fluctuates when the shift
lever shifts from the N range or P range to
the driving range (A/M, R range) without the
brake pedal depressed.

If the shift lever shifts to the driving range
(A/M or R range) without the brake pedal
depressed, the clutch becomes the partial
clutch engagement status simultaneously
with the gear engagement. Therefore, the
engine load changes. As a result, the en-
gine speed may vary or decrease.

Securely depress the
brake before shifting the
shift lever to the driving
range (A/M, R range) for
safety reasons.

The vehicle cannot start at any gears higher
than 2GR.

The gear position that the vehicle can start
is only 1GR and reverse gears. The vehicle
cannot start at any gears higher than 2GR
because the load for the clutch is too great.

Start the vehicle in 1GR
or reverse gear. On a
slippery road, use SAVE
mode of the A range.

2014 GT-R

TM-6

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

PRECAUTIONS

The gear shift is
not performed
or slow.

No manual upshift is accepted during start-
up.

The manual shift change is inhibited in or-
der to reduce the load to the clutch during
start-up (until the clutch is engaged).

Shift the gear only after
the start-up is finished
(after the clutch is en-
gaged).

Shift-down to 1GR is denied during the
drive in 2GR.

Speed reduction during the drive in 2GR
causes partial clutch engagement to pre-
vent engine stall. Therefore, shift-down to
1GR is denied.

To shift down to 1GR,
depress the brake pedal
and stop the vehicle or
accelerate to escape
from 2GR partial clutch
engagement.

The gear shift takes time at low oil temper-
ature.

The oil viscosity is high and the oil flow re-
striction is large at low oil temperature, and
the oil pressure response takes time.

Smooth gear shift is re-
sumed when the oil tem-
perature increases.

The gear shift is not performed even if the
paddle shifter operation is performed.

• The paddle shifter operation can be per-

formed only in the M range.

• If the engine over revving occurs or the

specified engine speed is not reached af-
ter a gear shift, the gear shift is inhibited,
and the shift position indicator on the
combination meter blinks to warn the
driver.

Use the M range and
perform gear shift at the
proper engine speed.

Symptom

Cause

Action

2014 GT-R

PRECAUTIONS

TM-7

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

The gear shift is
not performed
or slow.

The continuous manual shift is not accept-
ed.

The excessively fast continuous gear shift is
prohibited for safety reasons. The gear shift
that can be accepted during the gear shift is
only the next gear shift.

Take interval time to
continuously operate
the paddle shifter.

Shift lever operation is denied when parking
the vehicle on a hill with the accelerator
pedal depressed.

Shift lever operation is denied when parking
the vehicle on a hill with the accelerator
pedal depressed to protect transmission
from being damaged.

When parking the vehi-
cle on a hill, fully de-
press the brake pedal to
operate the shift lever.

The gear shift in R mode of the M range is
slow.

The predictive pre-shift control provides a
waiting gear selection focusing on the full
sport driving. Therefore in normal driving, it
takes time for changing the waiting gear
and the gear shift time may be prolonged.

R mode of the M range
is basically used in sport
driving.

No automatic upshift occurs in R mode of
the M range.

In order to provide the operation feeling of
manual transmission, no automatic upshift
occurs like manual transmission.

Upshift manually or use
in Normal mode of the M
range.

In Normal mode of M range, 2 speed gear
shift is performed for one manual upshift.

Normal mode of M range performs the au-
tomatic upshift when the specified engine
speed is reached. During the automatic up-
shift, if a manual upshift intervenes by the
paddle shifter, a total of a 2-speed gear shift
(1-speed automatic gear shift + 1-speed
manual gear shift) is performed.

If the automatic upshift
is used or a manual gear
shift is done a little earli-
er, 1-speed gear shift
can be attained. Or, R
mode of the M range
without automatic up-
shift is used.

While driving in the A range, after the vehi-
cle is accelerated for merging onto a free-
way, for example, the automatic upshift
does not occur soon after the accelerator
pedal is released.

When the vehicle is accelerated rather hard
for merging onto a freeway, or runs on a
ramp curve with side G applied, the adap-
tive shift control works to activate the gear
hold status in which no gear shift occurs for
a certain period of time. This symptom stays
longer in R mode than Normal mode.

Waiting for a certain pe-
riod of time deactivates
the gear hold status. Or
upshift manually.

During a sudden deceleration, no automatic
downshift occurs.

During a sudden deceleration, if a tire lock
occurs, the actual vehicle speed cannot be
judged (the vehicle body moves, but the
wheels stop), therefore the appropriate
gear can no longer be selected. For safety
reasons, a gear shift is inhibited.

With a certain period of
time after the tire lock
disappears, an automat-
ic gear shift to the appro-
priate gear is resumed.

An upshift near the engine rev limit causes
a drop of the drive power.

A manual upshift near the engine rev limit
may activate the engine over-rev protection
depending on the timing and lower the en-
gine torque. Therefore, an upshift at this
timing drops the drive power.

This symptom can be
eliminated by upshifting
a little earlier.

Shock generated by gearshift is great.

Shift shock varies depending on how the
accelerator pedal depressed during a gear
shift. Because the tuning allows an increase
of the shift speed as the accelerator pedal
travel increases, the shift shock also in-
creases.
For example, start the vehicle with the ac-
celerator pedal fully depressed, as the vehi-
cle speed increases, shift up to 2GR, after
that release the accelerator pedal and shift
up to 3GR. In this case, compared to 2GR
to 3GR shift shock, 1GR to 2GR shift shock
feels larger.

To prevent shift shock,
drive with gentle accel-
erator operation.

Symptom

Cause

Action

2014 GT-R

TM-8

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

PRECAUTIONS

The drive pow-
er is not gener-
ated or weak,
or the engine
races.

The drive power is weak when the temper-
ature becomes extremely cold. The engine
does not race.

The engine torque and engine speed are
restricted to protect the transmission and
engine at low temperature (the transmis-
sion oil temperature is approximately

−

(

−

F) or less, or the engine oil temperature

is approximately 0

C (32

F) or less). The

drive power becomes weak or the engine
speed does not increase over the specified
speed.

If the oil temperature ris-
es, the restriction of en-
gine torque and engine
speed is cancelled.

The drive power is not generated at high oil
temperature. The engine does not race.

The engine torque and engine speed are
restricted to protect the transmission and
engine at high temperature (the transmis-
sion oil temperature is approximately 150

(302

F) or more, or the engine oil tempera-

ture is approximately 135

C (275

F) or

more). The drive power becomes weak or
the engine speed does not increase over
the specified speed.

Reduce the speed or
stop the vehicle in a safe
place until the engine oil
temperature decreases
or the transmission
warning lamp turns off.

The drive power is not generated at high
clutch temperature.

The engine torque and engine speed are
restricted to protect the clutch at high clutch
temperature. The drive power is not trans-
mitted when the temperature is further in-
creased. At this time, the vehicle may move
if the brake pedal is not depressed on a
slope.

Reduce the speed or
stop the vehicle with the
brake pedal depressed
until the transmission
warning lamp turns off.

At very low temperature, hard acceleration
causes engine racing.

At low oil temperature, because of a high oil
viscosity, oil pressure response takes time.
Therefore, before the clutch is engaged, the
engine speed increases, which may cause
an engine racing.

Do not perform hard ac-
celeration at low outside
temperature with cold
transmission.

After the vehicle stops with a sudden decel-
eration, depressing the accelerator pedal
causes engine racing.

Under a sudden deceleration, tire lock eas-
ily occurs. To prevent an engine stall when
a lock occurs, the clutch is released. Under
that status, depressing the accelerator ped-
al may cause racing.

With a certain period of
time after releasing the
accelerator pedal, the
clutch is engaged and
the racing stops.

Driving force is weak when using R mode
start.

If R mode starting is performed four times
consecutively, it restricts engine torque for
protection which makes R mode starting un-
able. R mode starting cannot be used when
a warning lamp is illuminated.

It can be recovered by
performing cool down
running [approx. 2 km
(1.2 mile) at 60-80 km/h
(38-49 MPH), gear in
5th or 6th] until trans-
mission warning lamp
turns off. Confirm the
warning lamp content.

The engine
stalls.

If the accelerator pedal and brake pedal are
depressed together to stop, the engine
stalls.

Because the clutch engagement pattern is
adjusted for start-up or acceleration de-
pending on the accelerator pedal operation,
if the brake pedal is depressed together, a
force to stop the engine is generated by
braking force and the engine may stall.

Refrain from simulta-
neous footing on accel-
erator pedal and brake
pedal as much as possi-
ble.

Symptom

Cause

Action

2014 GT-R

PRECAUTIONS

TM-9

< PRECAUTION >

[TRANSMISSION: GR6Z30A]

The set-up
switch cannot
be changed.

It cannot be changed from SAVE mode to R
mode.

The mode changes by 1 step per 1 mode
switch operation.

When changing from
SAVE mode to R mode,
set to Normal mode
once, and then press
and hold the switch for 1
second to select R
mode.

It cannot be changed from R mode to SAVE
mode.

When changing from R
mode to SAVE mode,
set to Normal mode
once, and then press
the switch for SAVE
mode.

The combina-
tion meter dis-
play is
malfunctioning.

The oil change history is reset without oper-
ation.

The oil change history is reset if the power
supply is cut off when the battery is re-
moved at the battery replacement.

Note the history before
removing the battery.
Perform manual setting
of history after recon-
necting.

Symptom

Cause

Action

2014 GT-R

TRANSMISSION OIL

TM-11

< PERIODIC MAINTENANCE >

[TRANSMISSION: GR6Z30A]

• *1: When the oil drops

• *2: If oil leakage is detected, perform necessary procedures, check for oil leakage, and adjust oil level to the proper level.

• *3: When the oil does not drop

• *4: The grease applied to parking cable part can melt to generate a drop due to heat. Be careful not to confuse it with transmission oil

leakage.

CONDITION CHECK

Remove the filler plug, insert a finger into the filler hole, and judge the oil conditions from the transmission oil
applied to the inside of the transmission case.

CAUTION:

Be careful not to cut the finger with edges.

Status

Parts

Required operation

Reference

Oil leak-

age

*1, *2

Trans-
mission
assem-
bly (on-
board/
single
unit)

A: Mating surface between oil pan and
case

Check the seal surface condition. Replace the oil
pan gasket only if there is a non-standard condi-
tion. Check for oil leakage.

This work is

recom-

mened to be

performed

by GT-R cer-

tified NIS-

SAN dealer.

B: Park position switch

Check the mounting surface condition. Replace
the plain washer only if there is not any other mal-
functioning condition. Check for oil leakage.

• C: Heat exchanger & bracket mounting

surface and heat exchanger mounting
bolt

• D: Water hose connection (Engine cool-

ant)

• C: Check the seal surface condition. If it is nor-

mal, replace the O-ring of the part where oil
leakage arises and the single-use parts re-
moved during procedure. Check for oil leakage.

• D: Check the seal surface condition. If it is nor-

mal, replace the clamp of the part where engine
coolant leakage arises. Check for engine cool-
ant leakage.

E: Front oil seal

Check the oil seal mounting surface and sliding
surface condition. Replace the front oil seal only if
there is not any other malfunctioning condition.
Check for oil leakage.

F: Drain plug

Replace the drain plug. Check for oil leakage.

TM-19

G: Filler plug

Replace the filler plug gasket. Check for oil leak-
age.

TM-20

• H: Transmission harness connector
• I: Oil seal of parking lever
• J: Oil seal of companion flange (trans-

mission side) of main propeller shaft as-
sembly

• K: Transmission case joining portion
• L: AWD solenoid

Replace the transmission assembly.

This work is

recom-

mened to be

performed

by GT-R cer-

tified NIS-

SAN dealer.

M: 3rd-5th check pin

Replace the plain washer. Check for oil leakage.

Trans-
mission
assem-
bly (sin-
gle unit)

N: Filler plug

Replace the filler plug gasket. Check for oil leak-
age.

O: Transmission case joining portion

Replace the transmission assembly.

• P: Idler bolt
• Q: Plug

Replace the plain washer or O-ring. Check for oil
leakage.

R: Breather

Clean and wipe spouted oil with a part cleaner. Fill
with oil to the specified oil level, if necessary.

—

Oil

smears

Each part of the transmission assembly, including the
parts requiring oil leakage check.

Use part cleaner or the equivalent to wipe out
smeared oil. Then, check for oil leakage.

—

Grease

drop

S: Parking cable

Wipe excess grease off.

—

2014 GT-R

TM-12

< PERIODIC MAINTENANCE >

[TRANSMISSION: GR6Z30A]

TRANSMISSION OIL

OIL CHANGE TIMING

Judging When to Change Transmission Oil by Oil Temperature

How to Check Transmission Oil Temperature History With CONSULT

Turn ignition switch ON.

Select “SHOW OIL TEMP HISTORY” in “Work support” in “TRANSMISSION”.

Check transmission oil temperature frequency history to judge the timing of oil change.

Draining

INFOID:0000000009162742

Remove the front diffuser. Refer to

EXT-39, "FRONT DIFFUSER : Exploded View"

Remove the heat insulator.

Remove the filler plug (

Transmission oil status

Possible cause

Required operation

Varnish-like condition (It is as thick
as varnish).

Clutch is burned.

Change the transmission oil. Check the trans-
mission assembly or any other parts on the ve-
hicle.

Milky or cloudy

Water is mixed in the fluid.
Example:
• Inflow of engine coolant by internal explo-

sion of heat exchanger

• Inflow of water from breather by flood, etc.

Change the transmission oil. Check for flooded
area.

A large amount of metal particles are
contained in the fluid.

Sliding portions in the transmission assembly
are excessively worn.

Change the transmission oil. Check the trans-
mission assembly operation for any malfunc-
tioning condition.

Transmission oil temperature while driving

Interval of transmission oil change

Not exceeding 120

C (248

Change both transmission oil and differential oil every 60,000 km (36,000 miles)

From 120

C (248

F) – 140

C (284

Change both transmission oil and differential oil every 5,000 km (3,000 miles)

Higher than 140

C (284

Change both transmission oil and differential oil immediately.

Transmission oil temperature frequency history

Timing of oil chang

At least one count in “Oil Temperature Frequency 5”

Change both transmission oil and differential oil immediately.

At least one count in “Oil Temperature Frequency 4”

Change both transmission oil and differential oil ever 5,000 km
(3,000 miles).

No count in both “Oil Temperature Frequency 4” and “Oil Temper-
ature Frequency 5”

Change both transmission oil and differential oil ever 60,000 km
(36,000 miles).

NNDIA0018ZZ

2014 GT-R

TRANSMISSION OIL

TM-13

< PERIODIC MAINTENANCE >

[TRANSMISSION: GR6Z30A]

Remove the drain plug (1) and drain tube (2) from the oil pan,
and then drain the transmission oil.

Install the drain tube to the oil pan. Refer to

TM-19, "Exploded

View"

Filling

INFOID:0000000009162743

REPLACEMENT/ADJUSTMENT PROCEDURE

NOTE:
Replace the filler plug gasket and drain plug with new ones after oil level adjustment.

Remove the filler plug (

) and drain plug, and then fill with the

transmission oil until it leaks from the drain hole.

CAUTION:

• Always use the specified transmission oil. In addition,

always use the filler after cleaning. If use/mixed use/mis-
use of the transmission oil other than the specified brand
occurs, the original performance cannot be obtained or it
may cause serious malfunctions.

• Check that dust does not mix.
• Always use paper towels. Never use waste cloth.

Install the filler plug and drain plug. Refer to

TM-20, "Exploded View"

(filler plug),

TM-19, "Exploded View"

(drain plug).

Start engine with shift position in P range and keep it until transmission system check is complete.

CAUTION:

• If the oil does not fully circulate in transmission oil line after engine start, it could cause an oil

flowing sound (such as hissing sound). Keep it at idle for several minutes in that case.

• Because of incomplete oil circuit in transmission oil line, a transmission warning light could illu-

minate at transmission system check. In this case, keep it at idle for several minutes, and then
restart the engine.

With depressing the brake pedal, shift the selectro lever to A range (wait for 5 seconds)

→

N range (wait

for 5 seconds)

→

R range (wait for 5 seconds)

→

P range.

Stop the engine.

Remove the filler plug and drain plug, and then fill with the transmission oil until it leaks from the drain
hole.

Install the filler plug and drain plug. Refer to

TM-20, "Exploded View"

(filler plug),

TM-19, "Exploded View"

(drain plug).

Install the heat insulator.

Start the engine and run it at idle. Run the engine until the oil temperature reaches 50

C (122

F) while

checking FLUID TEMP in “DATA MONITOR” of CONSULT.

10. With depressing the brake pedal, shift the selectro lever to A range (wait for 5 seconds)

→

N range (wait

for 5 seconds)

→

R range (wait for 5 seconds)

→

P range.

11. Stop the engine and wait for 5 minutes.
12. Remove the drain plug. Install the drain plug when the transmission oil begins to drip (1 drop/1 second).

Refer to

TM-19, "Exploded View"

CAUTION:

• Perform from step 11 to step 12 within 25 minutes.
• Repeat the procedure from step 6 if the transmission oil does not leak from the drain hole.

NNDIA0033ZZ

Transmission oil

: Refer to

TM-21, "General Spec-

ification"

NNDIA0018ZZ

2014 GT-R

TM-14

< PERIODIC MAINTENANCE >

[TRANSMISSION: GR6Z30A]

TRANSMISSION OIL

• Never reuse drain plug.

13. Replace the filler plug gasket with new ones.

CAUTION:

Never reuse filler plug gasket.

14. Install the front diffuser. Refer to

EXT-39, "FRONT DIFFUSER : Exploded View"

15. Select “OIL TEMP HISTORY RESET” in “WORK SUPPORT” of CONSULT.

16. Touch “START” to reset oil temperature history.

REFILL ADJUSTMENT PROCEDURE

NOTE:
Replace the filler plug gasket and drain plug with new ones after oil level adjustment.

Remove the front diffuser. Refer to

EXT-39, "FRONT DIFFUSER : Exploded View"

Remove the heat insulator.

Start engine with shift position in P range and keep it until transmission system check is complete.

With depressing the brake pedal, shift the selectro lever to A range (wait for 5 seconds)

→

N range (wait

for 5 seconds)

→

R range (wait for 5 seconds)

→

P range.

Stop the engine.

Remove the filler plug (

) and drain plug, and then fill with the

transmission oil until it leaks from the drain hole.

CAUTION:

• Always use the specified transmission oil. In addition,

always use the filler after cleaning. If use/mixed use/mis-
use of non-specified transmission oil other than the spec-
ified brand occurs, the original performance cannot be
obtained or it may cause serious malfunctions.

• Check that dust does not mix.
• Always use paper towels. Never use waste cloth.

Install the filler plug and drain plug. Refer to

TM-20, "Exploded View"

(filler plug),

TM-19, "Exploded View"

(drain plug).

Install the heat insulator.

Start the engine and run it at idle. Run the engine until the oil temperature reaches 50

C (122

F) while

checking FLUID TEMP in “DATA MONITOR” of CONSULT.

10. With depressing the brake pedal, shift the selectro lever to A range (wait for 5 seconds)

→

N range (wait

for 5 seconds)

→

R range (wait for 5 seconds)

→

P range.

11. Stop the engine and wait for 5 minutes.
12. Remove the drain plug. Install the drain plug when the transmission oil begins to drip the drop status (1

drop/1 second). Refer to

TM-19, "Exploded View"

CAUTION:

• Perform from step 11 to step 12 within 25 minutes.
• Repeat the procedure from step 6 if the transmission oil does not leak from the drain hole.
• Never reuse drain plug.

13. Replace the filler plug gasket with new ones.

CAUTION:

Never reuse filler plug gasket.

14. Install the front diffuser. Refer to

EXT-39, "FRONT DIFFUSER : Exploded View"

Transmission oil

: Refer to

TM-21, "General Spec-

ification"

NNDIA0018ZZ

2014 GT-R

Nissan GT-R (2007-2014 year). STEERING SYSTEM / TRANSAXLE & TRANSMISSION. Service Manual - part 2