Infiniti EX37. Transaxle and Transmission (2013 year). Manual - part 19

FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEAR

TM-289

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

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Disassembly

INFOID:0000000008285948

1.

Remove needle bearing (1) from front carrier assembly.

2.

Compress snap ring (1) using flat-bladed screwdrivers (A).

CAUTION:

• Be careful not to scratch rear internal gear.
• Be careful not to damage snap ring.

3.

Remove front carrier assembly and input clutch assembly from
rear internal gear.

4.

Remove front carrier assembly from input clutch assembly.

5.

6.

Remove snap ring (1) from front carrier assembly.

CAUTION:

Be careful not to expand snap ring excessively.

7.

Remove O-ring (1) and seal rings (2) from input clutch assem-
bly.

JPDIA1120ZZ

JPDIA1123ZZ

JPDIA1159ZZ

JPDIA1124ZZ

2013 EX

TM-290

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEAR

8.

Remove needle bearing from input clutch assembly.

9.

Remove snap ring from input clutch drum using a flat-bladed
screwdriver.

CAUTION:

• Be careful not to scratch input clutch drum and input

clutch retaining plate.

• Be careful not to damage snap ring.

10. Remove input clutch component part (drive plates, driven plates,

retaining plate and dish plate) from input clutch drum.

Assembly

INFOID:0000000008285949

1.

Install input clutch component part (drive plates, driven plates,
retaining plate and dish plate) to input clutch drum.

CAUTION:

Check order of plates.

2.

Install snap ring to input clutch drum using a flat-bladed screw-
driver.

CAUTION:

• Be careful not to scratch input clutch drum and input

clutch retaining plate.

• Be careful not to damage snap ring.

SCIA2853E

SCIA2864E

1

:  Snap  ring

2

: Retaining plate

3

: Drive plate (six pieces)

4

: Driven plate (six pieces)

5

:  Dish  plate

JPDIA1192ZZ

SCIA2864E

2013 EX

FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEAR

TM-291

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

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3.

Install needle bearing to input clutch assembly.

CAUTION:

Check the direction of needle bearing. Refer to 

TM-228,

"Location of Needle Bearings and Bearing Races"

.

4.

Install O-ring (1) and seal rings (2) to input clutch assembly.

5.

Install snap ring (1) to front carrier assembly.

CAUTION:

Be careful not to expand snap ring excessively.

6.

Compress snap ring (1) using flat-bladed screwdrivers (A).

CAUTION:

• Be careful not to scratch rear internal gear.
• Be careful not to damage snap ring.

7.

Install front carrier assembly and input clutch assembly to rear
internal gear.

8.

Install needle bearing (1) to front carrier assembly.

CAUTION:

Check the direction of needle bearing. Refer to 

TM-228,

"Location of Needle Bearings and Bearing Races"

.

SCIA2853E

JPDIA1124ZZ

JPDIA1159ZZ

JPDIA1123ZZ

JPDIA1120ZZ

2013 EX

TM-292

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

FRONT CARRIER, INPUT CLUTCH, REAR INTERNAL GEAR

Inspection

INFOID:0000000008285950

INSPECTION AFTER DISASSEMBLY

Front Carrier Snap Ring

Check for deformation, fatigue or damage. If necessary, replace the snap ring.

Input Clutch Snap Ring

Check for deformation, fatigue or damage. If necessary, replace input clutch assembly.

Input Clutch Drum

Check for deformation, fatigue or damage or burns. If necessary, replace input clutch assembly.

Input Clutch Retaining Plate/Drive Plates/Driven Plates/Dish Plate

Check facing for burns, cracks or damage. If necessary, replace input clutch assembly.

Front Carrier

Check for deformation, fatigue or damage. If necessary, replace front carrier assembly.

Rear Internal Gear

Check for deformation, fatigue or damage. If necessary, replace rear internal gear.

2013 EX

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB

TM-293

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

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MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH
HUB

Exploded View

INFOID:0000000008285951

Disassembly

INFOID:0000000008285952

1.

Remove needle bearing and bearing race from high and low
reverse clutch hub.

2.

Remove snap ring from mid sun gear assembly using pair of
snap ring pliers.

CAUTION:

Be careful not to expand snap ring excessively.

1.

Mid sun gear

2.

Seal ring

3.

Rear sun gear

4.

2nd one-way clutch

5.

Snap ring

6.

Needle bearing

7.

High and low reverse clutch hub

8.

Snap ring

9.

Bearing race

10. Needle bearing

Refer to 

GI-4, "Components"

 for symbols in the figure.

JSDIA1918ZZ

SCIA2854E

SCIA2855E

2013 EX

TM-294

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB

3.

Remove high and low reverse clutch hub from mid sun gear
assembly.

4.

Remove needle bearing from high and low reverse clutch hub.

5.

Remove rear sun gear assembly from mid sun gear assembly.

6.

Remove snap ring from rear sun gear using a flat-bladed screw-
driver.

CAUTION:

• Be careful not to scratch rear sun gear and 2nd one-way

clutch.

• Be careful not to damage snap ring.

7.

Remove 2nd one-way clutch (1) from rear sun gear.

SCIA2856E

SCIA2857E

SCIA7018E

SCIA2859E

JSDIA1817ZZ

2013 EX

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB

TM-295

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

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8.

Remove seal rings from mid sun gear.

Assembly

INFOID:0000000008285953

1.

Install seal rings to mid sun gear.

2.

Install 2nd one-way clutch (1) to rear sun gear.

3.

Install snap ring to rear sun gear using a flat-bladed screwdriver.

CAUTION:

• Be careful not to scratch rear sun gear and 2nd one-way

clutch.

• Be careful not to damage snap ring.

SCIA2861E

SCIA2861E

JSDIA1817ZZ

SCIA2859E

2013 EX

TM-296

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB

4.

Install rear sun gear assembly to mid sun gear assembly.

5.

Install needle bearing to high and low reverse clutch hub.

CAUTION:

Check the direction of needle bearing. Refer to 

TM-228,

"Location of Needle Bearings and Bearing Races"

.

6.

Install high and low reverse clutch hub to mid sun gear assem-
bly.

7.

Install snap ring to mid sun gear assembly using pair of snap
ring pliers.

CAUTION:

Be careful not to expand snap ring excessively.

8.

Check operation of 2nd one-way clutch.

SCIA7018E

SCIA2857E

SCIA2856E

SCIA2855E

2013 EX

MID SUN GEAR, REAR SUN GEAR, HIGH AND LOW REVERSE CLUTCH HUB

TM-297

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

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a.

Hold mid sun gear and turn rear sun gear.

b.

Check 2nd one-way clutch for correct locking and unlocking
directions.

CAUTION:

If not as shown in the figure, check installation direction of
2nd one-way clutch.

9.

Install needle bearing and bearing race to high and low reverse
clutch hub.

CAUTION:

Check the direction of needle bearing and bearing race.
Refer to 

TM-228, "Location of Needle Bearings and Bearing

Races"

.

Inspection

INFOID:0000000008285954

INSPECTION AFTER DISASSEMBLY

2nd One-way Clutch

1.

Hold mid sun gear and turn rear sun gear.

2.

Check 2nd one-way clutch for correct locking and unlocking
directions. If necessary, replace 2nd one-way clutch.

Each Snap Ring

Check for deformation, fatigue or damage. If necessary, replace the snap ring.

2nd One-way Clutch

Check frictional surface for wear or damage. If necessary, replace the 2nd one-way clutch.

Mid Sun Gear

Check for deformation, fatigue or damage. If necessary, replace the mid sun gear.

Rear Sun Gear

Check for deformation, fatigue or damage. If necessary, replace the rear sun gear.

High and Low Reverse Clutch Hub

Check for deformation, fatigue or damage. If necessary, replace the high and low reverse clutch hub.

SCIA3132E

SCIA2854E

SCIA3132E

2013 EX

TM-298

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

HIGH AND LOW REVERSE CLUTCH

HIGH AND LOW REVERSE CLUTCH

Exploded View

INFOID:0000000008285955

Disassembly

INFOID:0000000008285956

1.

Remove bearing race from high and low reverse clutch drum.

2.

Remove snap ring from high and low reverse clutch drum using
a flat-bladed screwdriver.

CAUTION:

• Be careful not to scratch high and low reverse clutch

drum.

• Be careful not to damage snap ring.

3.

Remove high and low reverse clutch component part (drive
plates, driven plates, retaining plate and dish plate) from high
and low reverse clutch drum.

1.

Snap  ring

2.

High and low reverse clutch retaining 
plate

3.

High and low reverse clutch drive 
plate

4.

High and low reverse clutch driven 
plate

5.

High and low reverse clutch dish 
plate

6.

Bearing race

7.

High and low reverse clutch drum

Refer to 

GI-4, "Components"

 for the symbols in the figure.

JPDIA1191ZZ

SCIA5215E

SCIA2868E

2013 EX

HIGH AND LOW REVERSE CLUTCH

TM-299

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

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Assembly

INFOID:0000000008285957

1.

Install high and low reverse clutch component part (dish plate,
drive plates, driven plates and retaining plate) to high and low
reverse clutch drum.

CAUTION:

Check the order of plates.

2.

Install snap ring to high and low reverse clutch drum using a flat-
bladed screwdriver.

CAUTION:

• Be careful not to scratch high and low reverse clutch

drum.

• Be careful not to damage snap ring.

3.

Install bearing race to high and low reverse clutch drum.

CAUTION:

Check the direction of bearing race. Refer to 

TM-228, "Loca-

tion of Needle Bearings and Bearing Races"

.

Inspection

INFOID:0000000008285958

INSPECTION AFTER DISASSEMBLY

Check the following items. If necessary, replace high and low reverse clutch assembly.

Snap Ring

Check for deformation, fatigue or damage.

High and Low Reverse Clutch Retaining Plate/ Drive Plates/Driven Plates/Dish Plate

Check facing for burns, cracks or damage.

High and Low Reverse Clutch Drum

Check for deformation, fatigue or damage or burns.

1

:  Snap  ring

2

: Retaining plate

3

: Drive plate (four pieces)

4

: Driven plate (four pieces)

5

:  Dish  plate

JPDIA1194ZZ

SCIA2868E

SCIA5215E

2013 EX

TM-300

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

DIRECT CLUTCH

DIRECT CLUTCH

Exploded View

INFOID:0000000008285959

Disassembly

INFOID:0000000008285960

1.

Remove snap rings from direct clutch drum using a flat-bladed
screwdriver.

CAUTION:

• Be careful not to scratch direct clutch drum and direct

clutch retaining plate.

• Be careful not to damage snap ring.

2.

Remove direct clutch component part (drive plates, driven
plates, retaining plate and dish plate) from direct clutch drum.

Assembly

INFOID:0000000008285961

1.

Install direct clutch component part (drive plates, driven plates,
retaining plate and dish plate) to direct clutch drum.

CAUTION:

Check the order of plates.

1.

Direct clutch drum

2.

Direct clutch driven plate

3.

Direct clutch retaining plate

4.

Snap ring

5.

Direct clutch drive plate

6.

Direct clutch dish plate

JSDIA1949ZZ

SCIA2868E

1

:  Snap  ring

2

: Retaining plate

3

: Drive plate (five pieces)

4

: Driven plate (five pieces)

5

: Dish plate

JSDIA1919ZZ

2013 EX

DIRECT CLUTCH

TM-301

< UNIT DISASSEMBLY AND ASSEMBLY >

[7AT: RE7R01A]

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2.

Install snap rings to direct clutch drum using a flat-bladed screw-
driver.

CAUTION:

• Be careful not to scratch direct clutch drum and direct

clutch retaining plate.

• Be careful not to damage snap ring.

Inspection

INFOID:0000000008285962

INSPECTION AFTER DISASSEMBLY

Check the following items. If necessary, replace direct clutch assembly.

Snap Ring

Check for deformation, fatigue or damage.

Direct Clutch Retaining Plate/Drive Plates/Driven Plates/Dish Plate

Check facing for burns, cracks or damage.

Direct Clutch Drum

Check for deformation, fatigue or damage or burns.

SCIA2868E

2013 EX

TM-302

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[7AT: RE7R01A]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specification

INFOID:0000000008285963

*1: Refer to 

MA-10, "Fluids and Lubricants"

.

*2: The fluid capacity is the reference value.

Vehicle Speed at Which Gear Shifting Occurs

INFOID:0000000008285964

Unit: km/h (MPH)

• At half throttle, the accelerator opening is 4/8 of the full opening.

Applied model

VQ37VHR

2WD

AWD

Transmission model code number

X621E, X987D

X622A, X987E

Stall torque ratio

1.92 : 1

Transmission gear 
ratio

1st

4.924

2nd

3.194

3rd

2.043

4th

1.412

5th

1.000

6th

0.862

7th

0.772

Reverse

3.972

Recommended fluid

Genuine NISSAN Matic S ATF

*1

Fluid capacity

9.2 liter (9-3/4 US qt, 8-1/8 Imp qt)

*2

CAUTION:

• Use only Genuine NISSAN Matic S ATF. Never mix with other ATF.
• Using ATF other than Genuine NISSAN Matic S ATF will cause deterioration driveability and A/T durability, and may damage 

the A/T, which is not covered by the INFINITI new vehicle limited warranty.

Gear position

Throttle position

Full throttle 

Half throttle 

D

1 

→

 D

2

58 – 62 (36 – 38)

45 – 49 (28 – 30)

D

2 

→

 D

3

91 – 99 (57 – 61)

71 – 79 (44 – 49)

D

3 

→

 D

4

143 – 153 (89 – 95)

106 – 116 (66 – 72)

D

4 

→

 D

5

209 – 219 (130 – 136)

152 – 162 (94 – 101)

D

5 

→

 D

6

251 – 261 (156 – 162)

184 – 194 (114 – 121)

D

6 

→

 D

7

251 – 261 (156 – 162)

251 – 261 (156 – 162)

D

7 

→

 D

6

240 – 250 (150 – 155)

127 – 137 (79 – 85)

D

6 

→

 D

5

240 – 250 (150 – 155)

127 – 137 (79 – 85)

D

5 

→

 D

4

180 – 190 (112 – 118)

105 – 115 (65 – 71)

D

4 

→

 D

3

119 – 129 (74 – 80)

61 – 71 (38 – 44)

D

3 

→

 D

2

62 – 70 (39 – 43)

36 – 44 (22 – 27)

D

2 

→

 D

1

19 – 23 (12 – 14)

6 – 10 (4 – 6)

2013 EX

SERVICE DATA AND SPECIFICATIONS (SDS)

TM-303

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[7AT: RE7R01A]

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Vehicle Speed at Which Lock-up Occurs/Releases

INFOID:0000000008285965

• Vehicle speed with D

5

 position.

• 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.

Stall Speed

INFOID:0000000008285966

Torque Converter

INFOID:0000000008285967

Total End Play

INFOID:0000000008285968

Unit: mm (in)

Reverse Brake Clearance

INFOID:0000000008285969

Unit: mm (in)

Front Brake Clearance

INFOID:0000000008285970

Unit: mm (in)

Throttle position

Vehicle speed

km/h (MPH)

Lock-up ON

Lock-up OFF

Closed throttle

54 – 62 (34 – 38)

54 – 62 (34 – 39)

Half throttle

153 – 161 (95 – 100)

106 – 114 (66 – 71)

Stall speed

2,050 – 2,350 rpm

Dimension between end of converter housing and torque converter

25.0 mm (0.98 in)

Total end play

Standard

0.25 – 0.55 (0.0098 – 0.0217)

Thickness of bearing race for adjusting total end play

1.0 (0.039)
1.2 (0.047)
1.4 (0.055)
1.6 (0.063)
1.8 (0.071)
2.0 (0.079)
2.2 (0.087)

Reverse brake clearance

Standard

0.8 – 1.2 (0.031 – 0.047)

Thickness of retaining plate for adjusting reverse brake clearance

4.8 (0.189)
5.0 (0.197)
5.2 (0.205) 
5.4 (0.213)
5.6 (0.220)
5.8 (0.228)
6.0 (0.236)

Front brake clearance

Standard

0.7 – 1.1 (0.028 – 0.043)

Thickness of retaining plate for adjusting front brake clearance

2.0 (0.079)
2.2 (0.087)
2.4 (0.094)
2.6 (0.102)

2.8 (0.110)

2013 EX

TM-304

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[7AT: RE7R01A]

SERVICE DATA AND SPECIFICATIONS (SDS)

2346 Brake Clearance

INFOID:0000000008285971

Unit: mm (in)

2346 brake clearance

Standard

1.5 – 1.9 (0.059 – 0.075)

Thickness of snap ring for adjusting 2346 brake clearance

2.0 (0.079)
2.2 (0.087)
2.4 (0.094)
2.6 (0.102)

2.8 (0.110)
3.0 (0.118)

2013 EX