suspension INFINITI QX56 2009 Factory Owner's Manual

ON-VEHICLE SERVICEFSU-9
< ON-VEHICLE MAINTENANCE >
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• Any turning angles are not adjustable. If any of steering angles are out of the specification, check if the following parts are worn or damaged.
- Steering gear
- Steering column
- Front suspension components If found that they are worn or damaged, replace them with new ones.
Revision: December 20092009 QX56

FRONT SUSPENSION ASSEMBLYFSU-13
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
FRONT SUSPENSION ASSEMBLY
ComponentINFOID:0000000003772273
1. Dust cover 2. Shock absorber 3. Upper link
4. Steering knuckle 5. Cotter pin 6. Bolt
7. Jounce bumper 8. Washer 9. Lower link
10. Stabilizer bar 11. Stabilizer bar bushing 12. Stabilizer bar mounting bracket
13. Connecting rod 14. Coil spring 15. Upper seat
16. Upper spring seat 17. Shock absorber bushing 18. Shock absorber mounting insulator
19. Spacer 20. Washer Front
AWEIA0142GB
Revision: December 20092009 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)FSU-23
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000003772281
Spring Free HeightINFOID:0000000003772282
Wheel Alignment (Unladen*1)INFOID:0000000003772283
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions. Suspension type
Independent double wishbone coil over shock
Shock absorber type Double-acting hydraulic
Stabilizer Standard equipment
2WD325.5 ± 3 mm (12.8 ± 0.1 in)
4WD 335.0 ± 3 mm (13.2 ± 0.1 in)
Drive type 2WD 4WD
Camber*6
Degree minute (decimal degree) Minimum
-0° 51 ′ (-0.85 °)- 0° 33 ′ (-0.55 °)
Nominal -0° 6 ′ (-0.10 °)0 ° 12 ′ (0.20 °)
Maximum 0° 39 ′ (0.65 °)0 ° 57 ′ (0.95 °)
Cross camber 0° 45 ′ (0.75 °) or less 0 ° 45′ (0.75 °) or less
Caster
Degree minute (decimal degree) Minimum
3° 15 ′ (3.25 °)2 ° 45 ′ (2.75 °)
Nominal 4° 0 ′ (4.00 °)3 ° 30 ′ (3.50 °)
Maximum 4° 45 ′ (4.75 °)4 ° 15 ′ (4.25 °)
Cross caster 0° 45 ′ (0.75 °) or less 0
° 45 ′ (0
.75°) or less
Kingpin inclination
Degree minute (decimal degree) 13
° 32 ′ (13.53 °)1 3° 13 ′ (13.22 °)
Total toe-in Distance (A
− B) Minimum
1.8 mm (0.07 in) 1.8 mm (0.07 in)
Nominal 2.8 mm (0.11 in) 2.8 mm (0.11 in)
Maximum 3.8 mm (0.15 in) 3.8 mm (0.15 in)
Angle (left side or right side)
Degree minute (decimal degree) Minimum
0° 3 ′ (0.05 °)0 ° 3 ′ (0.05 °)
Nominal 0° 5 ′ (0.08 °)0 ° 5 ′ (0.08 °)
Maximum 0° 7 ′ (0.12 °)0 ° 7 ′ (0.12 °)
Wheel turning angle
(full turn) Inside
Degree minute (decimal degree)
34
° 31 ′– 38 ° 31 ′*2
(34.52 °– 38.52° ) 34
° 44 ′– 38° 44′*4
(34.73 °– 38.73 °)
Ou t

side
Degree minute (decimal degree) 30
° 59 ′– 34 ° 59 ′*3
(30.98 °– 34.98° ) 30
° 29 ′– 34° 29′*5
(30.48 °– 34.48 °)
SFA234AC
Revision: December 20092009 QX56

FSU-24
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
*2: Target value 37° 31 ′ (37.52 °)
*3: Target value 33 ° 59 ′ (33.98 °)
*4: Target value 37 ° 44 ′ (37.73 °)
*5: Target value 33 ° 29 ′ (33.48 °)
*6 Some vehicles may not be equipped with straight (non-adjustable) lower link bolts and washers. In order to adjust camber and caster
on these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers
Ball JointINFOID:0000000003772284
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1)INFOID:0000000003772285
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Verify the vehicle height. If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization pro-
cedure. Refer to SCS-7, "
CONSULT-III Function".
Swinging force “A”
Upper ball joint
8.1 – 103.2 N (0.8 – 10.5 kg-f, 1.8 – 23.2 lb-f) *1
Lower ball joint 11.4 – 145.5 N (1.1 – 14.8 kg-f, 2.5 – 32.7 lb-f) *2
Turning torque “B” 0.5 - 6.4 N·m (0.05 - 0.65 kg-m, 4 - 57 in-lb)
Vertical end play “C” 0 mm (0 in)
SFA858AWEIA0076E
Suspension type
Air leveling*2
Applied model2WD4WD
Front wheelarch height (Hf) 920
(36.22) 937
(36.89)
Rear wheelarch height (Hr) 917
(36.10) 937
(36.89)
LEIA0085E
Revision: December 20092009 QX56

IDENTIFICATION INFORMATIONGI-23
< FEATURES OF NEW MODEL >
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DimensionsINFOID:0000000003771193
Unit: mm (in)
Wheels & TiresINFOID:0000000003771194
* With Steel Wheel Drive type
2WD4WD
Overall length 5254 (206.9)5255 (206.9)
Overall width 2001 (78.8)2001 (78.8)
Overall height (with roof rack) 1976.8 (77.8)1997.7 (78.7)
Front tread width 1715 (67.5)1715 (67.5)
Rear tread width 1715 (67.5)1715 (67.5)
Wheelbase 3130 (123.2)3130 (123.2)
Minimum Running Ground Clearance (at front suspension) 211.2 (8.3)232 (9.1)
Drive Type Grade Road wheelTireSpare tire size*
All QX56 20x8JJ Chromium Aluminum Alloy P275/60R20P275/60R20
Revision: December 20092009 QX56

TOW TRUCK TOWINGGI-33
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INIFINTI recommends that towing dollies be used when towing 4WD
equipped vehicles or place the vehicle on a flat bed truck.
CAUTION:
• Never tow 4WD models with any of the wheels on the ground as this may cause serious and expensive damage to the
transfer case and transmission.
Towing Point
CAUTION:
Never tow the vehicle using only the towing points. To avoid
damaging the vehicle body, use proper towing equipment when
towing.
Vehicle Recovery (Freeing a stuck vehicle)INFOID:0000000005867508
•Tow chains or cables must be attached only to the main structural members of the vehicle.
• Pulling devices should be routed so they do not touch any part of the suspension, steering, brake or
cooling systems
• Always pull the cable straight out from the front or rear of the vehicle. Never pull the vehicle at a
sideways angle.
• Pulling devices such as ropes or canvas straps are not recommended for use for vehicle towing or
recovery.
WAIA0032E
AWAIA0027GB
Revision: December 20092009 QX56

MA-1
MAINTENANCE
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CONTENTS
MAINTENANCE
PRECAUTION .......
........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
ON-VEHICLE MAINTENANCE .....................6
GENERAL MAINTE NANCE ........................... .....6
General Maintenance .......................................... ......6
PERIODIC MAINTENANCE ................................8
Introduction of Periodic Maintenance .................. ......8
Maintenance for Off-road Driving (4WD only) ...........8
Schedule 1 ................................................................8
Schedule 2 ..............................................................10
RECOMMENDED FLUIDS AND LUBRI-
CANTS ................................................................
12
Fluids and Lubricants .......................................... ....12
Engine Oil Recommendation ..................................13
ENGINE MAINTENANCE ...................................14
Checking Drive Belts ........................................... ....14
Changing Engine Coolant .......................................14
Checking Fuel Line .............................................. ....17
Changing Fuel Filter ................................................17
Changing Engine Air Cleaner Filter .........................17
Changing Engine Oil ................................................18
Changing Oil Filter ...................................................18
Changing Spark Plugs .............................................19
Checking EVAP Vapor Line .....................................20
CHASSIS AND BODY MAINTENANCE ...........22
Changing In-cabin Microfilter ............................... ....22
Checking Exhaust System .......................................22
Checking the A/T Fluid (ATF) ..................................23
Changing the A/T Fluid (ATF) ..................................24
Checking Transfer Fluid ..........................................25
Changing Transfer Fluid ..........................................26
Checking Propeller Shaft .........................................26
Checking Front Final Drive Oil .................................26
Changing Front Final Drive Oil ................................27
Checking Rear Final Drive Oil .................................27
Changing Rear Final Drive Oil .................................27
Balancing Wheels ....................................................28
Rotation ...................................................................29
Checking Brake Fluid Level and Leaks ...................30
Checking Brake Line and Cables ............................30
Checking Disc Brake ...............................................30
Checking Steering Gear and Linkage ......................31
Checking Power Steering Fluid and Line ................31
Checking Axle and Suspension Parts .....................32
Lubricating Locks, Hinges and Hood Latches .........33
Checking Seat Belts, Buckles, Retractors, An-
chors and Adjusters ............................................. ....
33
Revision: December 20092009 QX56

PERIODIC MAINTENANCEMA-9
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(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts i
f found
damaged or if the auto belt tensioner reading reaches the maximum limit.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Maintenance-free item. For service procedures, go to the FL section.
(4) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(5) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
* Maintenance items and inte rvals with “*” are recommended by NISSAN for reliable vehicle operation. The owner need not perform
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required.
CHASSIS AND BODY MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary.
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000) Months 33.75
(54)27 37.5
(60) 30 41.25
(66)33 45
(72) 36 48.75
(78)39 52.5
(84) 42 56.25
(90)45 60
(96) 48
Drive belts NOTE (1) I*MA-14
Air cleaner filter NOTE (2) [R]MA-17
EVAP vapor lines I*MA-20
Fuel lines I*MA-17
Fuel filter NOTE (3) —
Engine coolant NOTE (4) R*MA-14
Engine oil R R R R R R R R MA-18
Engine oil filterR R R R R R R R MA-18
Spark plugs (Iridium-tipped type)Replace every 105,000 miles (169,000 km).MA-19
Intake and exhaust valve clear-
ance*NOTE (5)
EM-18
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section
- Page or
- Content
Title
Perform at number of miles, kilometers or
months, whichever comes first. Miles x
1,000(km x
1,000)
Months 3.75
(6)
3 7.5
(12)
6 11 . 2 5
(18)
9 15
(24)
12 18.75
(30)
15 22.5
(36)
18 26.25
(42)
21 30
(48)
24
Brake lines and cables IIMA-30
Brake pads and rotors II I IMA-30
Automatic transmission fluid, transfer fluid and
differential gear oil NOTE (1)
IIMA-23
,
MA-25
,
MA-27
,
MA-26
Steering gear and linkage, axle and suspension
parts II I I
MA-31,
MA-32
Tire Rotation NOTE (2) MA-29
Drive shaft boots and propeller shaft (4WD)II I IMA-26
Exhaust system II I IMA-22
In-cabin microfilter RRMA-22
Revision: December 20092009 QX56

MA-32
< ON-VEHICLE MAINTENANCE >
CHASSIS AND BODY MAINTENANCE
Checking Axle and Suspension Parts
INFOID:0000000003777011
FRONT AND REAR AXLE AND SUSPENSION PARTS
Check front and rear axle and suspension parts for excessive play, cracks, wear or other damage.
• Shake each wheel to check for excessive play.
• Rotate each wheel to check for abnormal noise.
• Check the axle and suspension nuts and bolts for looseness.
• Check the strut and shock absorber for oil leakage or other damage.
• Check the suspension ball joints for grease leakage and ball joint dust cover for cracks or other damage.
DRIVE SHAFT
Check the boots and drive shaft for cracks, wear, damage, and
grease leakage.
SMA525A
SFA901
Revision: December 20092009 QX56

PG
HARNESSPG-53
< COMPONENT DIAGNOSIS >
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C3 C6 B/2 : Evap canister vent control valve
B4 C7 GR/2 : Rear bumper antenna
C4 C8 B/3 : Height sensor
B4 C9 B/4 : Suspension air compressor
C4 C10 BR/2 : Rear wheel sensor RH
C4 C11 BR/2 : Rear wheel sensor LH
Rear sonar sensor sub-harness
A4 C101 GR/8 : To C3
A3 C102 B/3 : Rear sonar sensor LH outer
B4 C103 B/3 : Rear sonar sensor LH inner
B4 C104 B/3 : Rear sonar sensor RH inner
C5 C105 B/3 : Rear sonar sensor RH outer
Revision: December 20092009 QX56