Nissan Murano Z51 (2012 year). Manual — part 86
ST-62
< REMOVAL AND INSTALLATION >
[WITH HEATED STEERING WHEEL]
HYDRAULIC LINE
HYDRAULIC LINE
Exploded View
INFOID:0000000007540156
Removal and Installation
INFOID:0000000007540157
CAUTION:
1.
Reservoir tank bracket
2.
Bushing
3.
Reservoir tank
4.
Suction hose
5.
Clamp
6.
Copper washer
7.
High pressure piping
8.
Steering gear assembly
9.
Low pressure hose
10. Eye bolt
A.
To power steering oil pump suction
hose.
B.
To power steering oil pump.
: Vehicle front
: Apply power steering fluid.
Refer to
for symbols not described on the above.
JSGIA0608GB
Revision: 2013 February
2012 MURANO
HYDRAULIC LINE
ST-63
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• Never apply fluid to the hose (1) and tube (2).
• Insert hose securely until it contacts spool (A) of tube.
• Leave clearance (L) when installing clamp (3).
• Install eye bolt with eye joint (assembled to high pressure
hose) (B) protrusion (A) facing with pump side cutout, and
then tighten it to the specified torque after tightening by hand.
Refer to
• Securely insert harness connector to pressure sensor.
• Apply power steering fluid to around copper washer, then
install eye bolt.
• Never reuse copper washer.
Standard
L
: 3 – 8 mm (0.12 – 0.31 in)
JSGIA0118ZZ
SGIA1379E
Revision: 2013 February
2012 MURANO
ST-64
< REMOVAL AND INSTALLATION >
[WITH HEATED STEERING WHEEL]
HEATED STEERING WHEEL SWITCH
HEATED STEERING WHEEL SWITCH
Removal and Installation
INFOID:0000000007540158
REMOVAL
1.
Remove Instrument lower panel LH. Refer to
IP-13, "Removal and Installation"
2.
Remove heated steering wheel switch.
INSTALLATION
Install in the reverse order of removal.
Revision: 2013 February
2012 MURANO
SERVICE DATA AND SPECIFICATIONS (SDS)
ST-65
< SERVICE DATA AND SPECIFICATIONS (SDS)
[WITH HEATED STEERING WHEEL]
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
INFOID:0000000007540159
Steering Wheel Axial End Play and Play
INFOID:0000000007540160
Unit: mm (in)
Steering Wheel Turning Force
INFOID:0000000007540161
Unit: N·m (kg-m, in-lb)
Steering Angle
INFOID:0000000007540162
Unit: Degree minute (Decimal degree)
Steering Column Length
INFOID:0000000007540163
Unit: mm (in)
Steering Column Mounting Dimensions
INFOID:0000000007540164
Unit: mm (in)
Steering Column Operating Range
INFOID:0000000007540165
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
Wheel size: 18 inch
Wheel size: 20 inch
Inner wheel
Minimum
33
°
30
′
(33.5
°
)
32
°
00
′
(32.0
°
)
Nominal
36
°
30
′
(36.5
°
)
35
°
00
′
(35.0
°
)
Maximum
37
°
30
′
(37.5
°
)
36
°′
(36.0
°
)
Outer wheel
Nominal
31
°
30
′
(31.5
°
)
30
°
30
′
(30.5
°
)
Item
Standard
Steering column length
463 (18.23)
Item
Standard
Mounting dimension
30 (1.18) or less
Item
Standard
Without electric motor
With electric motor
Tilt operating range
15
°
18
°
Telescopic operating range
40 mm (1.57 in)
Rotating torque
0.49 N·m (0.05 kg-m, 4 in-lb)
Revision: 2013 February
2012 MURANO
ST-66
< SERVICE DATA AND SPECIFICATIONS (SDS)
[WITH HEATED STEERING WHEEL]
SERVICE DATA AND SPECIFICATIONS (SDS)
Lower Shaft Length
INFOID:0000000007540166
Unit: mm (in)
Rack Sliding Force
INFOID:0000000007540167
Unit: N (kg, lb)
Rack Stroke
INFOID:0000000007540168
Unit: mm (in)
Socket Swing Force and Rotating Torque
INFOID:0000000007540169
SWING FORCE
Unit: N (kg, lb)
ROTATING TORQUE
Unit: N·m (kg-m, in-lb)
Socket Axial End Play
INFOID:0000000007540170
Unit: mm (in)
Inner Socket Length
INFOID:0000000007540171
Unit: mm (in)
Relief Oil Pressure
INFOID:0000000007540172
Unit: kPa (kg/cm
2
, psi)
Item
Standard
Lower shaft length (extended position)
524.6 – 525.6 (20.65 – 20.69)
Item
Standard
2WD
AWD
Rack sliding force
195 – 258 (19.9 – 26.3, 43.8 –
57.9)
227 – 305 (23.2 – 31.1, 51.1 –
68.5)
Item
Standard
Wheel size: 18 inch
Wheel size: 20 inch
Rack stroke neutral position
70.5 (2.776)
68.0 (2.677)
Item
Standard
Outer socket
4.81 – 45.7 (0.5 – 4.6, 1.1 – 10.2)
Inner socket
8.9 – 64 (0.91 – 6.5, 2.01 – 14.3)
Item
Standard
Outer socket
0.3 – 2.9 (0.03 – 0.29, 3 – 25)
Item
Standard
Outer socket
0.5 (0.02) or less
Inner socket
0.2 (0.008) or less
Item
Standard
Inner socket length
120.3 (4.74)
Item
Standard
Relief oil pressure
9,500 – 10,300 (96.9 – 105.1, 1,378 – 1,494)
Revision: 2013 February
2012 MURANO
PRECAUTIONS
ST-67
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[WITHOUT HEATED STEERING WHEEL]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007540173
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.
Service Notice or Precautions for Steering System
INFOID:0000000007540174
• In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle
condition, and then check wheel alignment.
• Observe the following precautions when disassembling.
- Before disassembly, thoroughly clean the outside of the unit.
- Disassembly should be done in a clean work area. It is important to prevent the internal parts from becoming
contaminated by dirt or other foreign matter.
- For easier and proper assembly, place disassembled parts in order on a parts rack.
- Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere with
their operation.
- Never reuse non-reusable parts.
- Before assembling, apply the specified grease to the directed parts.
Revision: 2013 February
2012 MURANO
ST-68
< PREPARATION >
[WITHOUT HEATED STEERING WHEEL]
PREPARATION
PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000007540177
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
ST27180001
(J-25726-A)
Steering wheel puller
Removing steering wheel
ST3127S000
(J-25765-A)
Preload gauge
• Measuring steering column rotating torque
• Measuring pinion rotating torque
• Measuring ball joint rotating torque
KV48104400
(
—
)
Teflon ring correcting tool
a: 50 mm (1.97 in) dia.
b: 36 mm (1.42 in) dia.
c: 100 mm (3.94 in)
Installing rack Teflon ring
KV48103400
(
—
)
Preload adapter
Measuring pinion rotating torque
ST35300000
(
—
)
Drift
a: 45.1 mm (1.776 in) dia.
b: 59.0 mm (2.323 in) dia.
Installing oil pump oil seal
ZZA0819D
ZZA0806D
S-NT550
ZZA0824D
ZZA0881D
Revision: 2013 February
2012 MURANO
PREPARATION
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Commercial Service Tools
INFOID:0000000007540178
KV48103500
(J-26357)
Oil pressure gauge
Measuring oil pump relief pressure
KV48102500
(J-33914)
Oil pressure gauge adapter
Measuring oil pump relief pressure
Tool number
(Kent-Moore No.)
Tool name
Description
S-NT547
S-NT542
Tool name
Description
Power tool
Loosening bolts and nuts
Ball joint remover
Removing steering outer socket
Open head
Tightening end cover assembly
PBIC0190E
S-NT146
ZZA0822D
Revision: 2013 February
2012 MURANO
ST-70
< PREPARATION >
[WITHOUT HEATED STEERING WHEEL]
PREPARATION
Drift
a: 15 mm (0.59 in) dia.
b: 10 mm (0.39 in) dia.
Installing rotor snap ring
Drift
a: 36 mm (1.42 in) dia.
b: 20 mm (0.79 in) dia.
Installing oil pump oil seal
Tool name
Description
S-NT474
S-NT474
Revision: 2013 February
2012 MURANO
STEERING WHEEL
ST-71
< BASIC INSPECTION >
[WITHOUT HEATED STEERING WHEEL]
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BASIC INSPECTION
STEERING WHEEL
Inspection
INFOID:0000000007540179
NEUTRAL POSITION STEERING WHEEL
1.
Check that steering gear assembly, steering column assembly and steering wheel are installed in the cor-
rect position.
2.
Perform neutral position inspection after wheel alignment. Refer to
3.
Set the 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 the vehicle on a level and dry surface, set parking brake.
2.
Tires need to be inflated normal pressure. Refer to
3.
Start the engine.
4.
Bring power steering fluid up to adequate operating temperature.
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
.
RACK SLIDING FORCE
1.
Disconnect lower joint and steering knuckle from steering gear assembly. Refer to
.
2.
Start and run the 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
Fluid temperature
: 50 – 80
°
C (122 – 176
°
F)
Standard
Steering wheel turning
force
: Refer to
JSGIA0027ZZ
Fluid temperature
: 50 – 80
°
C (122 – 176
°
F)
Standard
Rack sliding force
: Refer to
.
SST090B
Revision: 2013 February
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ST-72
< BASIC INSPECTION >
[WITHOUT HEATED STEERING WHEEL]
STEERING WHEEL
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.
4.
With the engine at idle, turn steering wheel from full left stop to
full right stop and measure the turning angles.
5.
Check the following items when turning angle is out of the stan-
dard.
a.
Check the neutral position of the rack stroke (L).
b.
Disassemble steering gear assembly to check the cause that
rack stroke is outside of the standard.
• Steering angles are not adjustable. Check steering gear
assembly, steering column assembly and front suspension
components for wear or damage if any of the turning angles are different from the specified value.
Replace any of them, if any non-standard condition exists.
FAA0016D
Standard
Inner wheel (Angle: A)
: Refer to
.
Outer wheel (Angle: B)
: Refer to
.
SGIA0055E
Standard
Rack stroke neutral position (L)
: Refer to
.
SGIA0629J
Revision: 2013 February
2012 MURANO
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
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< SYMPTOM DIAGNOSIS >
[WITHOUT HEATED STEERING WHEEL]
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000007540180
2WD MODELS
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
AWD MODELS
Reference
—
NVH in F
AX, RAX
, FSU, RSU section.
NVH in WT section.
NVH in WT section.
NVH in F
AX section.
NVH in BR section.
Possible cause and SUSPECTED PARTS
F
lui
d l
ev
el
Air
in
hy
dra
u
lic sy
ste
m
Oute
r/in
ne
r s
o
c
k
e
t b
a
ll jo
in
t s
w
ing
in
g
t
o
rq
ue
Oute
r/in
ne
r socke
t b
a
ll jo
in
t ro
ta
ti
ng
to
rqu
e
Oute
r/in
ne
r s
o
c
k
e
t b
a
ll jo
in
t e
n
d
pl
ay
S
tee
rin
g f
lui
d l
ea
ka
ge
S
te
e
ri
ng
whe
e
l pl
ay
S
te
e
ri
ng
ge
ar
rac
k
s
lid
in
g
forc
e
Driv
e b
e
lt
lo
os
en
es
s
Im
pro
per st
ee
ring
whe
e
l
Im
p
rop
e
r
ins
tal
la
tio
n o
r
lo
os
en
es
s of
t
ilt
l
o
ck l
ev
er
M
ou
nt
ing
l
o
os
en
es
s
S
tee
rin
g
c
o
lu
m
n
de
fo
rm
at
io
n
o
r da
ma
ge
Imp
rop
e
r
ins
tal
la
ti
o
n o
r
lo
os
en
es
s of
st
e
eri
ng
col
u
mn
S
te
e
ri
ng
li
nk
ag
e l
o
o
s
e
n
e
s
s
AXLE and
SUSPENSION
TIRE
ROA
D
WHEEL
DRIVE SHA
F
T
BRAKE
Symptom
Steering
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
×
Shimmy
×
×
×
×
×
×
×
Judder
×
×
×
×
×
×
×
Revision: 2013 February
2012 MURANO
ST-74
< SYMPTOM DIAGNOSIS >
[WITHOUT HEATED STEERING WHEEL]
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference
—
NVH in DLN section.
NVH in DLN section.
NVH in F
AX,
R
A
X, FSU, RSU section.
NVH in WT section.
NVH in WT section.
NVH i
n
F
AX,
R
A
X section.
NVH in BR
section.
Possible cause and SUSPECTED PARTS
Fl
uid
le
ve
l
Air in hy
dra
u
lic sy
st
em
Oute
r/i
nne
r socke
t b
a
ll j
o
in
t swin
gin
g
torq
ue
Oute
r/i
nne
r socke
t b
a
ll j
o
in
t ro
ta
tin
g
t
o
rq
ue
Ou
te
r/
in
n
e
r so
ck
et
ba
ll jo
in
t en
d p
la
y
S
teeri
n
g
fl
uid
le
ak
ag
e
S
teeri
n
g
whe
e
l pl
ay
S
teeri
n
g
g
ear rac
k
sli
d
in
g
fo
rce
Dri
v
e
be
lt
lo
os
en
es
s
Im
pro
p
e
r st
ee
ring
wh
ee
l
Im
pro
p
e
r in
st
all
a
ti
on
or
loo
s
en
es
s o
f t
ilt
lo
ck
le
ve
r
M
oun
ti
ng lo
os
en
es
s
S
te
e
rin
g co
lum
n de
form
at
io
n
o
r da
ma
ge
Im
pro
p
e
r in
st
all
a
ti
on
or
loo
s
en
es
s o
f s
te
e
rin
g
co
lu
mn
S
teeri
ng
li
nk
ag
e l
oo
s
e
ne
s
s
PROPELLER SHA
F
T
DIFF
ERENTIAL
AXLE and SUSPENSI
ON
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
Symptom
Steering
Noise
× × × × × × × × ×
× ×
× × × × × × ×
Shake
× × ×
×
× × × × ×
Vibration
× × × × ×
×
× ×
×
Shimmy
×
×
×
× × ×
×
Judder
× ×
×
× × ×
×
Revision: 2013 February
2012 MURANO
POWER STEERING FLUID
ST-75
< PERIODIC MAINTENANCE >
[WITHOUT HEATED STEERING WHEEL]
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PERIODIC MAINTENANCE
POWER STEERING FLUID
Inspection
INFOID:0000000007540181
FLUID LEVEL
1.
Check fluid level with engine stopped.
2.
Ensure 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 causes 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 the 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.
6.
Check steering gear boots for accumulation of fluid leaked 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:
HOT (A)
: Fluid temperature 50 – 80
°
C (122 – 176
°
F)
COLD (B)
: Fluid temperature 0 – 30
°
C (32 – 86
°
F)
Recommended fluid
: Refer to
AMERICA : Fluids and Lubri-
cants"
(For North America),
17, "FOR MEXICO : Fluids and
Lubricants"
(For Mexico).
Fluid capacity
: Refer to
.
ALGIA0002GB
SGIA0506E
Revision: 2013 February
2012 MURANO
ST-76
< PERIODIC MAINTENANCE >
[WITHOUT HEATED STEERING WHEEL]
POWER STEERING FLUID
Fill reservoir tank with a sufficient amount of fluid so that fluid level is not below the MIN line while
turning steering wheel.
2.
Start the engine and hold steering wheel at each lock position for 3 second at idle to check for fluid leak-
age.
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 white contamination.
5.
Stop the 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.
Revision: 2013 February
2012 MURANO
STEERING WHEEL
ST-77
< PERIODIC MAINTENANCE >
[WITHOUT HEATED STEERING WHEEL]
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STEERING WHEEL
Inspection
INFOID:0000000007540182
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
• Check steering gear assembly mounting condition for looseness. Refer to
STEERING WHEEL PLAY
1.
Turn steering wheel so that front wheels come to the straight-ahead position.
2.
Start the 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.
Standard
Steering wheel axial end
play
: Refer to
ing Wheel Axial End Play
and Play"
.
Standard
Steering wheel play
: Refer to
ing Wheel Axial End Play
and Play"
.
Revision: 2013 February
2012 MURANO
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