Infiniti M35/M45 Y50. Manual - part 1125

PREPARATION

TF-7

C

E

F

G

H

I

J

K

L

M

A

B

TF

Commercial Service Tools

NDS000D7

Tool name

Description

Puller

●

Removing companion flange

Flange wrench

●

Removing and installing self-lock nut

Puller

●

Removing front drive shaft front bearing

●

Removing front drive shaft rear bearing

Power tool

●

Loosening bolts and nuts

NT077

NT771

ZZB0823D

PBIC0190E

TF-8

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

NDS000D8

Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.

Reference page

TF-

9

TF-

4

5

TF-

4

5

TF-

5

1

TF-

5

1

TF-

5

1

SUSPECTED PARTS
(Possible cause)

TRANS

F

ER 

FL

UI

D (

L

evel l

o

w

)

TRANS

F

ER FL

UI

D 

(W

ro

n

g

)

TR

AN

S

F

ER

 FL

U

ID

 (

L

evel

 t

o

o

 h

igh

)

L

IQUID GASKET

 (

D

am

aged

)

OIL SEAL (

W

or

n

 o

r dam

age

d

)

G

EAR

 (

W

or

n 

o

r dam

ag

ed)

BEA

R

IN

G

 (

W

o

rn or

 d

a

m

aged

)

TRANS

F

ER CASE 

(D

am

aged

)

Symptom

Noise

1

2

3

3

3

Transfer fluid leakage

4

1

2

2

3

TRANSFER FLUID

TF-9

C

E

F

G

H

I

J

K

L

M

A

B

TF

TRANSFER FLUID

PFP:31001

Replacement

NDS000D9

DRAINING

1.

Run the vehicle to warm up the transfer unit sufficiently.

2.

Stop the engine, and remove the drain plug to drain the transfer
fluid.

CAUTION:

When draining fluid, protect exhaust tube flange with cover.

3.

Apply sealant to drain plug. Install drain plug on transfer and
tighten to the specified torque. Refer to 

TF-45, "COMPO-

NENTS"

 .

●

Use Genuine Silicone RTV or equivalent. Refer to 

GI-47,

"Recommended Chemical Products and Sealants"

 .

CAUTION:

Remove old sealant adhering to mounting surfaces. Also
remove any moisture, oil, or foreign material adhering to application and mounting surfaces.

FILLING

1.

Remove filler plug and add transfer fluid until fluid level reaches
the specified limit near filler plug mounting hole.

CAUTION:

Carefully fill the fluid. (Fill up for approx. 3 minutes.)

2.

Leave the vehicle for 3 minutes, and check the fluid level again.

3.

Set a new gasket onto filler plug and install it on transfer and
tighten to the specified torque. Refer to 

TF-45, "COMPO-

NENTS"

 .

CAUTION:

Do not reuse gasket.

Inspection

NDS000DA

FLUID LEAKAGE AND FLUID LEVEL

1.

Check if fluid is leaking from transfer or around it.

2.

Check fluid level from filler plug mounting hole as shown in the
figure.

CAUTION:

Never start engine while checking fluid level.

3.

Before installing filler plug, set a new gasket. Install filler plug on
transfer and tighten to the specified torque. Refer to 

TF-45,

"COMPONENTS"

 .

CAUTION:

Do not reuse gasket.

SDIA2087E

Fluid capacity

: Approx. 1.25  (2-5/8 US pt, 2-1/4 lmp pt)

SDIA2028E

SDIA2028E

TF-10

AWD SYSTEM

AWD SYSTEM

PFP:41650

Power Transfer Diagram

NDS000DB

System Description

NDS000DC

DESCRIPTION

●

Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.

●

Makes possible stable driving, with no wheel spin, on snowy roads or other slippery surfaces.

●

On roads which do not require AWD, it contributes to improved fuel economy by driving in conditions close
to rear-wheel drive.

●

Sensor inputs determine the vehicle's turning condition, and in response tight cornering/braking are con-
trolled by distributing optimum torque to front wheels.

NOTE:

●

When driving, if there is a large difference between front and rear wheel speed which continues for a long
time, fluid temperature of drive system parts becomes too high and AWD warning lamp flashes rapidly.
(When AWD warning lamp flashes, vehicle changes to rear-wheel drive conditions.) Also, optional distri-
bution of torque sometimes becomes rigid before lamp flashes rapidly, but it is not malfunction.

●

If AWD warning lamp is flashing rapidly, stop vehicle and allow it to idle for some time. Flashing will stop
and AWD system will be restored.

●

When driving, AWD warning lamp may flash slowly if there is a significant difference in diameter of the
tires. At this time, vehicle performance is not fully available and cautious driving is required. (Continues
until engine is turned OFF.)

●

If the warning lamp flashes slowly during driving but remains OFF after engine is restarted, the system is
normal. If it again flashes slowly after driving for some time, vehicle must be inspected.

●

When the difference of revolution speed between the front and rear wheel the shift occasionally changes
to direct 4-wheel driving conditions automatically. This is not malfunction.

SDIA1611E