2008 INFINITI QX56 ABS

REAR SUSPENSION MEMBERRSU-13
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
RSU
N
O P
4. Disconnect the rear load leveling air suspension hoses at the rear load leveling air suspension compressor assembly.
• To disconnect the hoses, push in on the lock ring using a suit-able tool and pull the hose out.
5. Remove both of the rear wheel and tire assemblies using power tool.
6. Remove the brake caliper without disconnecting the brake hoses, using power tool. Reposition the brake caliper out of the
way using a suitable wire. Refer to BR-36, "
Removal and Instal-
lation of Brake Caliper and Disc Rotor" .
CAUTION:
• Do not crimp or stretch the brake hose when reposition- ing the brake caliper out of the way.
• Do not press brake pedal while the brake caliper is removed.
7. Remove the spare tire.
8. Remove both lower shock bolts.
9. Disconnect the two rear ABS sensor electrical connectors.
10. Remove the two rear drive shafts. Refer to RAX-10, "
Removal and Installation" .
11. Remove the rear final drive. Refer to DLN-248, "
Removal and Installation" .
12. Remove the EVAP canister bolt from the top of the rear suspension member.
13. Disconnect the parking brake cables from the brackets on the rear suspension member.
14. Disconnect parking brake cables at equalizer. Refer to PB-7, "
Removal and Installation"
15. Set a suitable jack to support each of the rear lower links and the
coil spring tension.
16. Remove both of the rear lower link outer bolts and lower the jack to remove the rear coil springs.
17. Remove the two bolts to disconnect the seat belt latch anchor from the rear suspension member.
18. Disconnect both of the connecting r ods from the front lower link.
19. Set a suitable jack under the rear suspension member.
20. Remove the six rear suspension member bolts.
21. Slowly lower the jack to remove the rear suspension member, suspension arm, front and rear lower links and stabilizer bar as
an assembly.
22. If necessary, remove the suspension arm, spare tire bracket, height sensor, rear load leveling air suspension hoses, stabilizer
bar, knuckle, and front and rear lower links from the rear sus-
pension member.
INSPECTION AFTER REMOVAL
Check the rear suspension member for deformation, cracks, and other damage and replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.
LEIA0074E
LEIA0077E
LEIA0075E
Revision: March 2010 2008 QX56

SHOCK ABSORBERRSU-15
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
RSU
N
O P
SHOCK ABSORBER
Removal and InstallationINFOID:0000000004900758
REMOVAL
1. Remove the wheel and tire assembly using power tool. Refer to WT-48, "Rotation".
2. Use CONSULT-III “EXHAUST SOLENOID ” active test to release the air pressure from the rear load level-
ing air suspension system.
3. Remove the four clips and remove the rear fender protector, front.
4. Disconnect the rear load leveling air suspension hose from the shock absorber.
• To disconnect the hose, push in on the lock ring using a suit-
able tool and pull the air hose out.
5. Remove the shock absorber upper and lower end bolts using power tool.
6. Remove the shock absorber. CAUTION:
Do not damage the rubber boot on the shock absorber.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten the shock absorber bolts to specification. Refer to RSU-9, "
Component".
INSPECTION AFTER INSTALLATION
• Check the shock absorber for any air leaks or damage to the rubber boot.
• Check the shock absorber for smooth operation through a full stroke, both compression and extension.
• Check piston rod for cracks, deformation or other damage and replace if necessary.
LEIA0081E
LEIA0082E
Revision: March 2010 2008 QX56

RSU-16
< REMOVAL AND INSTALLATION >
SUSPENSION ARM
SUSPENSION ARM
Removal and InstallationINFOID:0000000004900759
REMOVAL
1. Remove the rear suspension member assembly using power tool. Refer to RSU-11, "Removal and Instal-
lation" .
NOTE:
It is necessary to remove the rear suspension member to remove the front upper bolt from the suspension
arm.
2. Remove the shock absorber upper end bolt.
3. Remove the suspension arm upper nuts and bolts on the sus- pension member side using power tool.
4. Remove the suspension arm pinch bolt and nut on the knuckle side using power tool.
5. Disconnect the suspension arm from the knuckle using a soft hammer.
CAUTION:
Do not damage the ball joint with the soft hammer.
6. Remove the suspension arm.
INSPECTION AFTER REMOVAL
• Check the suspension arm for damage, cracks, deformation and replace if necessary.
• Check the rubber bushing for damage, cracks and deformation. Replace suspension arm assembly if neces- sary.
• Before checking, turn the ball joint at least 10 revolutions so that the ball joint is properly broken in.
LEIA0082E
LEIA0087E
Revision: March 2010 2008 QX56

RSU-18
< REMOVAL AND INSTALLATION >
FRONT LOWER LINK
FRONT LOWER LINK
Removal and InstallationINFOID:0000000004900760
REMOVAL
1. Remove the wheel and tire assembly using power tool.
2. Use CONSULT-III "EXHAUST SOLENOID" active test to release the air pressure from the rear load level-
ing air suspension system.
3. Remove the shock absorber lower end bolt.
4. Remove stabilizer bar connecting rod from front lower link.
5. Remove stabilizer bar clamps and place bar aside.
6. Remove the adjusting bolt and nut, and the bolt and nut, from the front lower link and rear suspension member using power
tool.
7. Remove the front lower link pinch bolt and nut on the knuckle side using power tool.
8. Disconnect the front lower link from the knuckle using a soft hammer.
CAUTION:
Do not damage the ball joint with the soft hammer.
9. Remove the front lower link.
INSPECTION AFTER REMOVAL
• Check the front lower link and bushing for any deformation, crack, or damage. Replace if necessary.
• Check the rubber bushing for damage, cracks and deforma tion. Replace the front lower link and bushing if
necessary.
• Before checking, turn the ball joint at least 10 revolutions so that the ball joint is properly broken in.
LEIA0082E
LEIA0086E
Revision: March 2010 2008 QX56

REAR LOAD LEVELING AIR SUSPENSION COMPRESSOR ASSEMBLYRSU-23
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
RSU
N
O P
REAR LOAD LEVELING AIR SUSPENSION COMPRESSOR ASSEMBLY
Removal and InstallationINFOID:0000000004900763
Rear Load Leveling Air Suspension System
REMOVAL
1. Use CONSULT-III "EXHAUST SOLENOID" active test to release the air pressure from the rear load level-
ing air suspension system.
2. Disconnect the electrical connectors for the rear load leveling air suspension compressor assembly.
3. Unclip the rubber cover to access the rear load leveling air suspension compressor assembly.
4. Disconnect the rear load leveling air suspension hoses at the rear load leveling air suspension compressor assembly.
• To disconnect the hoses, push in on the lock ring using a suit-
able tool and pull the hose out.
AWEIA0054GB
1. Rear load leveling air suspension
hose, RH 2. Shock absorber, RH 3. Height sensor
4. Rear load leveling air suspension hose, LH 5. Shock absorber, LH
6. Rear load leveling air suspension
compressor assembly
Front
LEIA0074E
Revision: March 2010 2008 QX56

RSU-26
< REMOVAL AND INSTALLATION >
HEIGHT SENSOR
HEIGHT SENSOR
Removal and InstallationINFOID:0000000004900766
Rear Load Leveling Air Suspension System
REMOVAL
1. Use CONSULT-III “EXHAUST SOLENOID” active test to release the air pressure from the rear load level-
ing air suspension system.
2. Disconnect the electrical connector for the height sensor.
3. Remove the two height sensor bolts and height sensor arm bracket bolt.
4. Remove the height sensor.
INSTALLATION
Installation is in the reverse order of removal.
AWEIA0054GB
1. Rear load leveling air suspension hose, RH 2. Shock absorber, RH
3. Height sensor
4. Rear load leveling air suspension hose, LH 5. Shock absorber, LH
6. Rear load leveling air suspension
compressor assembly
Front
LEIA0080E
Revision: March 2010 2008 QX56

FRONT SEATSE-71
< DISASSEMBLY AND ASSEMBLY >
C
DE
F
G H
I
K L
M A
B
SE
N
O P
Disassembly and AssemblyINFOID:0000000001606212
SEATBACK TRIM AND PAD
WARNING:
Removal of front side air bag module should only be done to allow deployment of front side air bag
module prior to disposal of seatback assembly.
NOTE:
Only complete seatback assemblies can be replaced on vehicles equipped with side air bags.
NOTE:
Be sure to set the front/rear cushion lifter to the top position.
Driver Seat
1. Remove the headrest.
2. Unhook the j-channel.
3. From inside of the seatback, squeeze the headrest holder tabs
at the base of the stay pipe and pull up to remove.
NOTE:
Before installing the headrest holder, check its orientation (front/
rear and right/left).
Passenger Seat
1. Remove the headrest.
2. Remove the seatback board from the back of the seatback.
19. Outer pedestal finisher 20. Seat cushion outer finisher21. Seat cushion assembly
22. Power seat switch escutcheon 23. Slide switch knob 24. Recliner switch knob
25. Seatback assembly 26. Headrest holder27. Seat slide/ recline switch
28. Power lumbar switch
LIIA1580E
LRS023
PIIA0163E
Revision: March 2010 2008 QX56

SE-72
< DISASSEMBLY AND ASSEMBLY >
FRONT SEAT
3. Remove the retainer.
4. From inside of the seatback, squeeze the headrest holder tabsat the base of the stay pipe and pull up to remove.
NOTE:
Before installing the headrest holder, check its orientation (front/
rear and right/left).
Removal of seatback assembly
1. After completing the steps 1 and 2 of "Seatback Trim and Pad", remove the side air bag harness connec-tor from the seat cushion.
2. Remove the mounting bolts (2 for each side) and seatback assembly.
Installation of seatback assembly
• Installation is in the reverse order of removal.
SEAT CUSHION TRIM AND PAD (DRIVER) OR SEAT CUSHION ASSEMBLY (PASSENGER)
CAUTION:
• Front passenger seat is equipped with an Occupa nt Classification System sensor and control mod-
ule. Do not disassemble front passenger seat cushion assembly or remove the trim as this will affect
the Occupant Classification System calibration.
• Always replace passenger seat cushion as an assembly.
• When removed, the passenger seat cushion must al ways be placed pan side UP to prevent damage.
• During installation, the wire harn ess clips must be reinstalled in the holes they were originally in.
Do not add clips.
• The Occupant Classification System control module can only be replaced as part of the seat cushion
assembly.
NOTE:
If the vehicle has been involved in a collision the seat must be inspected for damage. Refer to SR-19, "
For
Frontal Collision" .
1. Remove the power seat switch knobs, power seat switch escutcheon and lumbar switch bezel.
2. Remove the power seat and power lumbar switches.
SIIA0113E
LRS023
LIIA1581E
Revision: March 2010 2008 QX56