Page 1 of 4171

A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
O
QUICK REFERENCE INDEX
AGENERAL INFORMATIONGIGeneral Information
BENGINEEMEngine Mechanical
LUEngine Lubrication System
COEngine Cooling System
ECEngine Control System
FLFuel System
EXExhaust System
STRStarting System
ACCAccelerator Control System
CHYBRIDHBCHybrid Control System
HBBHybrid Battery System
HBRHybrid Brake System
DTRANSMISSION & DRIVE-
LINETMTransaxle & Transmission
DLNDriveline
FAXFront Axle
RAXRear Axle
ESUSPENSIONFSUFront Suspension
RSURear Suspension
SCSSuspension Control System
WTRoad Wheels & Tires
FBRAKESBRBrake System
PBParking Brake System
BRCBrake Control System
GSTEERINGSTSteering System
STCSteering Control System
HRESTRAINTSSBSeat Belt
SBCSeat Belt Control System
SRSRS Airbag
SRCSRS Airbag Control System
IVENTILATION, HEATER &
AIR CONDITIONERVTLVentilation System
HAHeater & Air Conditioning System
HACHeater & Air Conditioning Control System
JBODY INTERIORINTInterior
IPInstrument Panel
SESeat
ADPAutomatic Drive Postioner
APAdjustable Pedal
KBODY EXTERIOR,
DOORS, ROOF & VEHICLE
SECURITYDLKDoor & Lock
SECSecurity Control System
GWGlass & Window System
PWCPower Window Control System
RFRoof
EXTExterior
BRMBody Repair Manual
LDRIVER CONTROLSMIRMirrors
EXLExterior Lighting System
INLInterior Lighting System
WWWiper & Washer
DEFDefogger
HRNHorn
MELECTRICAL & POWER
CONTROLPWOPower Outlet
BCSBody Control System
LANLAN System
PCSPower Control System
CHGCharging System
PGPower Supply, Ground & Circuit Elements
NDRIVER INFORMATION &
MULTIMEDIAMWIMeter, Warning Lamp & Indicator
WCSWarning Chime System
SNSonar System
AVAudio, Visual & Navigation System
OCRUISE CONTROLCCSCruise Control System
PMAINTENANCEMAMaintenance
All rights reserved. No part
of this Service Manual may
be reproduced or stored in a
retrieval system, or transmit-
ted in any form, or by any
means, electronic, mechani-
cal, photo-copying, record-
ing or otherwise, without the
prior written permission of
Nissan North America, Inc.
Edition: June 2008
Revision: December 2009
Publication No. SM9
E-1J60U1
Page 2 of 4171

FOREWORD
This manual contains maintenance and repair procedure for the 2009
INFINITI QX56.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifi-
cations and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.
Page 3 of 4171

PLEASEHELPMAKETHISSERVICEMANUALBETTER!
YourcommentsareimportanttoINFINITIandwillhelpustoimproveourServiceManuals.
UsethisformtoreportanyissuesorcommentsyoumayhaveregardingourServiceManuals.
Pleaseprintthisformandtypeorwriteyourcommentsbelow.Mailorfaxto:
NissanNorthAmerica,Inc.
TechnicalServiceInformation
39001SunriseDrive,P.O.Box9200
FarmingtonHills,MIUSA48331
FAX:(248)488-3910
SERVICEMANUAL:Model:Year:
PUBLICATIONNO.(Refer to Quick Reference Index ):
Pleasedescribeany Service Manualissuesorproblemsindetail:
Pagenumber(s)Note:Pleaseincludeacopyofeachpage,markedwithyourcomments.
Arethetroublediagnosisprocedureslogicalandeasytouse?(circleyouranswer)YESNO
Ifno,whatpagenumber(s)?Note:Pleaseincludeacopyofeachpage,markedwithyourcomments.
Pleasedescribetheissueorproblemindetail:
Istheorganizationofthemanualclearandeasytofollow?(circleyouranswer)YESNO
Pleasecomment:
WhatinformationshouldbeincludedinINFINITIServiceManualstobettersupportyouinservicingor
repairingcustomervehicles?
DATE:YOURNAME:POSITION:
DEALER:DEALERNO.:ADDRESS:
CITY:STATE/PROV./COUNTRY:ZIP/POSTALCODE:
RINFINITI
Page 4 of 4171
2009
QUICK REFERNCE CHART: QX56
QUICK REFERNCE CHART: QX56
Engine Tune-up DataINFOID:0000000005987162
GENERAL SPECIFICATIONS
DRIVE BELTS
SPARK PLUG
Cylinder arrangementV- 8
Displacement cm
3(in3) 5,552 (338.80)
Bore and stroke mm (in) 98 x 92 (3.86 x 3.62)
Valve arrangement DOHC
Firing order 1-8-7-3-6-5-4-2
Number of piston rings Compression 2
Oil 1
Number of main bearings 5
Compression ratio 9.8:1
Compression pressure
kPa (kg/cm
2, psi)/rpm Standard 1,520 (15.5, 220)/200
Minimum 1,324 (13.5, 192)/200
Differential limit between cylinders 98 (1.0, 14)/200
Cylinder number
Valve timing Unit: degree
abcde f
244 ° 232° -8° 60° 10° 54°
SEM957C
PBIC0187E
Tension of drive belts Auto adjustment by auto tensioner
Page 5 of 4171

QUICK REFERNCE CHART: QX56
2010
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information
Front Wheel Alignment (Unladen*1)INFOID:0000000005987161
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*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 Make
NGK
Model Standard model
Standard type* DILFR5A-11
Gap (Nominal) 1.1 (0.043)
Drive type2WD 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 °)13 ° 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
° )
Outside
Degree minute (decimal degree) 30
° 59 ′ – 34 ° 59 ′ *3
(30.98 ° – 34.98 °) 30
° 29 ′ – 34 ° 29 ′ *5
(30.48 ° – 34.48 °)
SFA234AC
Page 6 of 4171

2009
QUICK REFERNCE CHART: QX56
Rear Wheel Alignment (Unladen
*1)INFOID:0000000005987159
*1: Fuel tank, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Wheelarch Height (Unladen*1)INFOID:0000000005987160
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions. Applied model
Without air leveling With air leveling
Camber
Degree minute (decimal degree) Minimum - 0
° 25 ′ (- 0.4 °)- 1 ° 0 ′ (- 1 °)
Nominal 0 ° 5 ′ (0.1 °)- 0 ° 30 ′ (- 0.5 °)
Maximum 0 ° 35 ′ (0.6 °)0 ° 0 ′ (0 °)
Cross camber 0 ° 45' (0.75 °) or less
To e - i n Distance
Toe-in (left side or right side)
AL - BL or AR - BR
mm (in)
:Front Minimum - 2.4 mm (- 0.094 in) 0 mm (0 in)
Nominal 0.9 mm (0.035 in) 3.3 mm (0.130 in)
Maximum 4.2 mm (0.165 in) 6.6 mm (0.260 in)
Cross toe
(AL - BL) - (AR - BR)
mm (in) 2 mm (0.079 in) or less
Angle Toe angle (left side or right side)
Degree minute
(Decimal degree) Minimum - 0
° 5' (- 0.08 °)0 ° 0' (0 °)
Nominal 0 ° 2' (0.03 °)0 ° 7' (0.11 °)
Maximum 0 ° 9' (0.14 °)0 ° 14' (0.22 °)
Cross toe
Degree minute (Decimal degree) 0
° 8' (0.14 °) or less
ALEIA0059ZZ
Suspension type
Air leveling*2
Applied model 2WD 4WD
Front wheelarch height (Hf)920
(36.22) 937
(36.89)
Rear wheelarch height (Hr) 917
(36.10) 937
(36.89)
LEIA0085E
Page 7 of 4171

QUICK REFERNCE CHART: QX56
2010
*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.
Brake SpecificationsINFOID:0000000005987157
Unit: mm (in)
Brake PedalINFOID:0000000005987158
Unit: mm (in)
CAUTION:
When equipped with adjustable pedal, the pedal must be in th e forward most position (closest to the floor) for pedal height
adjustment. Front brake Brake model AD41VA
Rotor outer diameter × thickness 350 x 30 (13.78 x 1.181)
Pad Length × width × thickness 151.6 x 56.5 x 12.0 (5.97 x 2.22 x 0.476)
Cylinder bore diameter 50.8 (2.00)
Rear brake Brake model AD14VE Rotor outer diameter × thickness 320 x 14 (12.60 x 0.551)
Pad Length × width × thickness 83.0 x 33.0 x 12.0 (3.268 x 1.299 x 0.472)
Cylinder bore diameter 48 (1.89)
Control valve Valve model Electric brake force distribution
Brake booster Booster model C215T
Diaphragm diameter 215 (8.46)
Pedal free height (H) with pedal in forward most position 182.3 - 192.3 (7.18 - 7.57)
Pedal travel (T) 153.3 (6.04)
Stop lamp switch and ASCD cancel switch threaded end to brake pedal bracket gap 0.74 - 1.96 (0.029 - 0.077)
ALFIA0149ZZ
Page 8 of 4171

2009
QUICK REFERNCE CHART: QX56
Front Disc Brake
INFOID:0000000005987155
Unit: mm (in)
Rear Disc BrakeINFOID:0000000005987156
Unit: mm (in)
Fluids and LubricantsINFOID:0000000005987154
Brake model AD41VA
Brake pad Standard thickness (new) 12.0 (0.476)
Repair limit thickness 1.0 (0.039)
Disc rotor Standard thickness (new) 30 (1.181)
Repair limit thickness 28.5 (1.122)
Maximum uneven wear (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.03 (0.001)
Brake model
AD14VE
Brake pad Standard thickness (new) 12.0 (0.472)
Repair limit thickness 1.0 (0.039)
Disc rotor Standard thickness (new) 14.0 (0.551)
Repair limit thickness 12.5 (0.492)
Maximum uneven wear (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.05 (0.002)
Description
Capacity (Approximate)
Metric US measure Imp measure
Fuel 105.8 28 gal 23 1/4 gal
Engine oil
Drain and refill With oil filter change
6.5 6 7/8 qt 5 3/4 qt
Without oil filter change 6.2 6 1/2 qt 5 1/2 qt
Dry engine (engine overhaul) 7.6 8 qt 6 3/4 qt
Cooling system With reservoir
at MAX level
14.4
15 1/4 qt 12 5/8 qt
Automatic transmission fluid (ATF) 10.6 11 1/4 qt 9 3/8 qt
Rear differential gear oil 1.75 3 3/4 pt 3 1/8 pt
Transfer fluid 3.0 3 1/8 qt 2 5/8 qt
Front differential gear oil 1.6 3 3/8 pt 2 7/8 pt
Power steering fluid (PSF) 1.0 1 1/8 qt 7/8 qt
Brake fluid — — —
Brake grease — — —
Multi-purpose grease — — —
Windshield washer fluid 4.5 4 3/4 qt 4 qt
Air conditioning system refrigerant 1.08 ± 0.05 kg 2.38 ± 0.11 lb 2.38 ± 0.11 lb
Air conditioning system oil 290 m9.8 fl oz 10.2 fl oz