Infiniti G35 (V35) Sedan. Manual - part 1265

ST-10

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POWER STEERING FLUID

ON-VEHICLE MAINTENANCE

POWER STEERING FLUID

Inspection

INFOID:0000000000958657

FLUID LEVEL

1.

Check fluid level with engine stopped.

2.

Make sure that fluid level is between MIN and MAX.

3.

Fluid levels at HOT and COLD are different. Do not confuse
them.

CAUTION:

• The fluid level should not exceed the MAX line. Excessive fluid will cause fluid leakage from the

cap.

• Never reuse drained power steering fluid.

FLUID LEAKAGE

• Check hydraulic connections for fluid leakage, cracks, damage,

looseness, or wear.

1.

Run engine until the fluid temperature reaches 50 to 80

°

C (122

to 176

°

F) in reservoir tank, and keep engine speed idle.

2.

Turn steering wheel several times from full left stop to full right
stop.

3.

Hold steering wheel at each lock position for five seconds and
carefully, check for fluid leakage.

CAUTION:

Never hold the steering wheel in a locked position for more
than 10 seconds. (There is the possibility that power steer-
ing oil pump assembly may be damaged.)

4.

If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not overtighten con-
nector as this can damage O-ring, washer and connector.

5.

If fluid leakage from oil pump is noticed, check oil pump. Refer to 

ST-48, "WITHOUT 4WAS : Inspection"

(Without 4WAS), 

ST-53, "WITH 4WAS : Inspection"

 (With 4WAS).

6.

Check steering gear boots for accumulation of fluid indicating from steering gear.

AIR BLEEDING HYDRAULIC SYSTEM

If air bleeding is not complete, the following symptoms can be observed.
• Bubbles are created in reservoir tank.
• Clicking noise can be heard from oil pump.
• Excessive buzzing in the oil pump.

NOTE:
Fluid noise may occur in the steering gear or oil pump. This does not affect performance or durability of the
system.

1.

Turn steering wheel several times from full left stop to full right stop with engine off.

CAUTION:

Filling reservoir tank with fluid so as not to lower fluid level below the MIN line while steering
wheel turning.

2.

Start engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leakage.

HOT

: Fluid temperature 50 – 80

°

C (122 – 176

°

F)

COLD

: Fluid temperature 0 – 30

°

C (32 – 86

°

F)

Recommended fluid

: Refer to 

MA-10, "Fluids 

and Lubricants"

.

Fluid capacity

: Refer to 

ST-58, "General 

Specifications"

.

PGIA0007J

SGIA0506E

POWER STEERING FLUID

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3.

Repeat step 2 above several times at approximately 3 second intervals.

CAUTION:

Never hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)

4.

Check fluid for bubbles and while contamination.

5.

Stop engine if bubbles and white contamination do not drain out. Perform step 2 and 3 above after waiting
until bubbles and white contamination drain out.

6.

Stop the engine, and then check fluid level.

ST-12

< ON-VEHICLE MAINTENANCE >

STEERING WHEEL

STEERING WHEEL

Inspection

INFOID:0000000000958658

STEERING WHEEL AXIAL END PLAY

1.

Check installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.

2.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

3.

Check the following items when steering wheel axial end play is out of the standard.
• Check the steering column assembly mounting condition. Refer to 

ST-16, "MANUAL TYPE : Exploded

View"

 (Manual models), 

ST-17, "AUTOMATIC : Exploded View"

 (Automatic models).

• Check steering gear assembly mounting condition for looseness. Refer to 

ST-27, "2WD : Removal and

Installation"

 (2WD models), 

ST-33, "AWD : Exploded View"

 (AWD models).

STEERING WHEEL PLAY

1.

Turn steering wheel so that front wheels come to the straight-ahead position.

2.

Start engine and lightly turn steering wheel to the left and right until front wheels start to move.

3.

Measure steering wheel movement on the outer circumference.

4.

Check the following items when steering wheel play is out of the standard.
• Check backlash for each joint of steering column assembly.
• Check installation condition of steering gear assembly.

NEUTRAL POSITION STEERING WHEEL

1.

Make sure that steering gear assembly, steering column assembly and steering wheel are installed in the
correct position.

2.

Perform neutral position inspection after wheel alignment. Refer to 

FSU-8, "Wheel Alignment Inspection"

(2WD models), 

FSU-28, "Wheel Alignment Inspection"

 (AWD models).

3.

Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.

4.

Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.

STEERING WHEEL TURNING FORCE

1.

Park vehicle on a level and dry surface, set parking brake.

2.

Tires need to be inflated normal pressure. Refer to 

WT-95, "Tire"

.

3.

Start engine.

4.

Bring power steering fluid up to adequate operating temperature.

Standard

Steering wheel axial end 
play

: Refer to 

ST-58, "Steering 

Wheel Axial End Play and 
Play"

.

Standard

Steering wheel play

: Refer to 

ST-58, "Steering 

Wheel Axial End Play and 
Play"

.

Fluid temperature

: 50 – 80

°

C (122 – 176

°

F)

STEERING WHEEL

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5.

Check steering wheel turning force when steering wheel has
been turned 540

°

 from neutral position.

NOTE:
Multiply the distance (L) from the hook of spring balance to the
center of steering wheel by the measurement value with a spring
balance.

6.

If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump. Regarding relief hydraulic pressure of oil
pump, refer to 

ST-48, "WITHOUT 4WAS : Inspection"

 (Without 4WAS models), 

ST-53, "WITH 4WAS :

Inspection"

 (With 4WAS models).

RACK SLIDING FORCE

1.

Disconnect lower joint and steering knuckle from steering gear assembly. Refer to 

ST-27, "2WD :

Removal and Installation"

 (2WD models), 

ST-34, "AWD : Removal and Installation"

 (AWD models).

2.

Start and run engine at idle to make sure steering fluid has reached normal operating temperature.

3.

While pulling outer socket slowly in 

±

11.5 mm (

±

0.453 in) range

from neutral position, make sure rack sliding force is within
specification.

4.

If rack sliding force is not within specification, overhaul steering
gear assembly.

FRONT WHEEL TURNING ANGLE

1.

Check front wheel turning angle after toe-in inspection. Refer to 

FSU-8, "Wheel Alignment Inspection"

(2WD models), 

FSU-28, "Wheel Alignment Inspection"

 (AWD models).

2.

Place front wheels on turning radius gauges and rear wheels on
stands, so that vehicle can be level.

3.

Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.

Standard

Steering wheel turning 
force

: Refer to 

ST-58, "Steering 

Wheel Turning Force"

.

JSGIA0027ZZ

Fluid temperature

: 50 – 80

°

C (122 – 176

°

F)

Standard

Rack sliding force

: Refer to 

ST-59, "Rack 

Sliding Force"

.

SST090B

FAA0016D