2006 INFINITI QX56 rack

RF-26
SUNROOF
Revision: November 20092006 QX56
SUNROOF UNIT
Removal
CAUTION:

Always work with a helper.

When taking sunroof unit out, use shop cloths to protect the seats and trim from damage.

After installing the sunroof unit and glass lid assembly, check gap adjustment to make sure there
is no malfunction.
1. Remove headlining. Refer to EI-38, "
HEADLINING" .
2. Remove the sunroof glass lid assembly. Refer to RF-26, "
GLASS LID ASSEMBLY" .
3. Remove overhead console bracket.
4. Disconnect front and rear drain hoses.
5. Remove front sunroof frame assembly bolts.
6. Remove rear sunroof bracket bolts.
7. Remove the sunroof frame assembly side bolts, then the sunroof unit.
Installation
1. Position the sunroof frame assembly and install the side bolts.
2. Install the sunroof brackets and bolts.
3. Install the front sunroof frame assembly bolts.
4. Connect front and rear drain hoses.
5. Install the overhead console bracket.
6. Install the sunroof glass lid assembly. Refer to RF-26, "
GLASS LID ASSEMBLY" .
NOTE:
Adjust sunroof glass lid assembly gap and height, refer to RF-23, "
Fitting Adjustment" .
7. Install headlining. Refer to EI-38, "
HEADLINING" .
GLASS LID ASSEMBLY
Removal
1. Open sunshade assembly.
NOTE:
Be sure glass lid assembly is fully closed.
2. Remove side cover LH and RH.
3. Remove the glass lid assembly screws at the sunroof frame assembly.
4. Remove the glass lid assembly.
Installation
1. Position glass lid assembly to sunroof frame assembly.
2. Install glass lid assembly screws. NOTE:
First tighten left front screw, then right rear to prevent movement while tightening the remaining screws.
1. Glass lid assembly 2. Wind deflector3. Rear drain hoses
4. Shade stoppers 5. Sunroof bracket 6. Sunshade assembly
7. Front drain hoses 8. Sunroof motor assembly9. Sunroof frame assembly
10. Overhead console bracket 11. Side cover LH 12. Side cover RH
WIIA0252E

SUNROOFRF-29
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RF
Revision: November 2009 2006 QX56
1. Remove the headlining. Refer to EI-38, "HEADLINING" .
2. Visually check the drain hoses for proper connections, damage or deterioration.
3. Remove each drain hose and check visually for damage, cracks or deterioration.
4. Pour water through the drain hose to check for damage.

If any damage is found, replace the drain hose.
WEATHERSTRIP
Visually check weatherstrip for any damage, deterioration, or flattening.

In the case of leakage around glass lid assembly, close and pour water around it to find the damaged or
gaped portion, remove glass lid assembly.

If any damage is found, replace glass lid assembly.
CAUTION:
Do not remove weatherstrip.
LINK AND WIRE ASSEMBLY
NOTE:
Before replacing any suspect part, be sure it is the source of the noise being experienced.
1. Visually check to determine if a sufficient amount of petroleum jelly has been applied to the wire or rail groove. If not, add petroleum jelly as required.
2. Check wire and casing for any damage or deterioration. If any damage is found, replace sunroof frame assembly.
LIIA0272E

REAR FINAL DRIVE ASSEMBLYRFD-23
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RFD
Revision: November 2009 2006 QX56
8. Remove the drive pinion rear bearing inner race and drive pinion
height adjusting washer using Tool.
9. Remove the drive pinion front and rear bearing outer races by tapping them uniformly using suitable tool.
CAUTION:
Do not damage gear carrier.
INSPECTION AFTER DISASSEMBLY
Clean the disassembled parts. Then inspect the parts for wear or damage. If wear or damage are found, follow
the measures below.
Drive Pinion and Drive Gear

If the drive pinion and drive gear teeth do not mesh or line-up correctly, determine the cause and adjust,
repair, or replace as necessary.

If the drive pinion or drive gear are worn, cracked, damaged, pitted or chipped (by friction) noticeably,
replace with new drive pinion and drive gear.

Drive pinion and drive gear are supplied in matched sets only. Matching numbers on both drive pinion and
drive gear are etched for verification. If a new drive pinion and drive gear set are being used, verify the
numbers of each drive pinion and drive gear before proceeding with assembly.
Bearing

If bearings are chipped (by friction), pitted, worn, rusted, scratched, or unusual noise is coming from bear-
ing, replace with new bearing assembly (as a new set).

Bearing must be replaced with a new one whenever disassembled.
Side Gear and Pinion Mate Gear

If any cracks or damage are found on the surface of the teeth, replace with new one.

If any worn or chipped marks are found on the side of the side gear and pinion mate gear which contact
the thrust washer, replace with new one.

Replace both side gear and pinion mate gear as a set when replacing side gear or pinion mate gear.
Side Gear Thrust Washer and Pinion Mate Thrust Washer

If any chips (by friction), damage, or unusual wear are found, replace with new one.
Gear Carrier

If any wear or cracks are found on the contact sides of gear carrier, replace with new one.
Companion Flange

If any chips (about 0.1mm, 0.004 in) or other damage on the companion flange surface which contacts the
front oil seal lips are found, replace with new one.Tool number: : ST30021000 ( — )
S-PD179
SDIA0817E

REAR SUSPENSION ASSEMBLYRSU-27
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Revision: November 2009 2006 QX56
Rear Load Leveling Air Suspension System
On-Vehicle Inspection and ServiceEES001HG
Check all of the component mountings for any excessive looseness, or back lash. Check the components for
any excessive wear, damage, or abnormal conditions. Repair or replace the components as necessary.
SHOCK ABSORBER INSPECTION

Check the shock absorbers for any air leaks or damage, and replace as necessary.

Check the hoses for any air leaks or damage, and replace as necessary.
1. Seat belt latch anchor2. Stabilizer bar bushing3. Stabilizer bar clamp
4. Stabilizer bar 5. Connecting rod6. Front lower link
7. Knuckle 8. Bushing9. Rear lower link
10. Shock absorber 11. Suspension arm12. Lower rubber seat
13. Coil spring 14. Upper rubber seat15. Rear suspension member
16. Spare tire bracket 17. Bound bumper
LEIA0072E
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

RSU-32
REAR SUSPENSION MEMBER
Revision: November 20092006 QX56
Rear Load Leveling Air Suspension System
REMOVAL
1. Use the CONSULT-II “EXHAUST SOLENOID” active test to release the air pressure from the rear load
leveling air suspension system.
2. Disconnect the electrical connectors for the height sensor and the rear load leveling air suspension com- pressor assembly.
3. Unclip the rubber cover to access the rear load leveling air suspension compressor assembly.
1. Seat belt latch anchor 2. Stabilizer bar bushing 3. Stabilizer bar clamp
4. Stabilizer bar 5. Connecting rod 6. Front lower link
7. Knuckle 8. Bushing 9. Rear lower link
10. Shock absorber 11. Suspension arm 12. Lower rubber seat
13. Coil spring 14. Upper rubber seat 15. Rear suspension member
16. Spare tire bracket 17. Bound bumper
LEIA0072E
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 (includes the
bracket and rubber cover)

REAR SUSPENSION MEMBERRSU-33
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RSU
Revision: November 2009 2006 QX56
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-28, "
Removal and Instal-
lation of Brake Caliper and Disc Rotor" .
CAUTION:

Do not crimp or stretch the brake hose when repositioning the brake caliper out of the way.

Do not press brake pedal while the brake caliper is removed.
7. Remove the spare tire.
8. Disconnect the two rear ABS sensor electrical connectors.
9. Remove the two rear drive shafts. Refer to RAX-7, "
Removal and Installation" .
10. Remove the rear final drive. Refer to RFD-13, "
REAR FINAL DRIVE ASSEMBLY" .
11. Remove the EVAP canister bolt from the top of the rear suspension member.
12. Disconnect the parking brake cables from the brackets on the rear suspension member.
13. Set a suitable jack to support each of the rear lower links and the coil spring tension.
14. Remove both of the rear lower link outer bolts and lower the jack to remove the rear coil springs.
15. Remove the two bolts to disconnect the seat belt latch anchor from the rear suspension member.
16. Disconnect both of the connecting rods from the rear stabilizer bar.
17. Set a suitable jack under the rear suspension member.
18. Remove the six rear suspension member bolts.
19. Slowly lower the jack to remove the rear suspension member, suspension arm, front and rear lower links and stabilizer bar as
an assembly.
20. 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 suspension member.
INSPECTION AFTER REMOVAL
Check the rear suspension member for deformation, cracks, and other damage and replace if necessary.
LEIA0074E
LEIA0077E
LEIA0075E

SHOCK ABSORBERRSU-35
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Revision: November 2009 2006 QX56
SHOCK ABSORBERPFP:56210
Removal and Installation EES001HJ
REMOVAL
1. Remove the wheel and tire assembly using power tool. Refer to WT-7, "Rotation" .
2. Use CONSULT-II “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-26, "Components" .
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

RSU-36
SUSPENSION ARM
Revision: November 20092006 QX56
SUSPENSION ARMPFP:55501
Removal and Installation EES001HK
REMOVAL
1. Remove the rear suspension member assembly using power tool. Refer to RSU-31, "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 nec-
essary.

Before checking, turn the ball joint at least 10 revolutions so that the ball joint is properly broken in.
LEIA0082E
LEIA0087E