INFINITI QX56 2007 Factory Service Manual

BL-180
< SERVICE INFORMATION >
BODY REPAIR
REAR FENDER
WIIA0285E

BODY REPAIR
BL-181
< SERVICE INFORMATION >
C
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F
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MA
B
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WIIA0283E

BL-182
< SERVICE INFORMATION >
BODY REPAIR
REAR SIDE MEMBER
REAR FLOOR REAR
WIIA0281E

BODY REPAIR
BL-183
< SERVICE INFORMATION >
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•
CRUSH HORN
WIIA0282E

BL-184
< SERVICE INFORMATION >
BODY REPAIR
• Work after 1st crossmember has been removed.
Portions to be welded:
A. Inner side rail crush horn, inner side rail crush horn and outer side rail crush horn.
B. Outer side rail crush horn, outer side rail crush horn and inner side rail crush horn.
Removal Notes
LIIA1083E

BODY REPAIR
BL-185
< SERVICE INFORMATION >
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• Scribe a straight line on the outer side rail crush horn and inner side rail crush horn along the hole center as
shown in the figure.
• Cut off outer side rail crush horn and inner side rail crush horn along scribed line A. Do not cut on the hole.
• Cut inner side rail crush horn at 45 mm backward cut position of cut line A. (along line B)
LIIA1084E
LIIA1085E

BL-186
< SERVICE INFORMATION >
BODY REPAIR
• After removing outer panel, dress area on the inner panel surface with a sander or equivalent.
Installation Notes
• Scribe a straight line on the inner side rail crush horn along the hole center as shown in the figure. Cut off
inner side rail crush horn along scribed line.
• Scribe a straight line on the outer side rail crush horn along the hole center as shown in the figure. Cut off
outer side rail crush horn along scribed line.
LIIA1086E
LIIA1087E
LIIA1088E

BODY REPAIR
BL-187
< SERVICE INFORMATION >
C
D
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F
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MA
B
BL
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P
• Weld part to be butt-welded and seam-welded corner to corner as shown in the figure.
LIIA1089E

BR-1
BRAKES
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SECTION BR
A
B
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CONTENTS
BRAKE SYSTEM
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution for Brake System ....................................2
PREPARATION ...................................................3
Special Service Tool .................................................3
Commercial Service Tool ..........................................3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ......................................4
BRAKE PEDAL ...................................................5
Inspection and Adjustment ........................................5
Removal and Installation ...........................................6
BRAKE FLUID .....................................................8
On Board Inspection .................................................8
Drain and Refill ..........................................................8
Bleeding Brake System .............................................8
BRAKE PIPING AND HOSE ..............................10
Hydraulic Circuit ......................................................10
Removal and Installation of Front Brake Hose ........10
Removal and Installation of Rear Brake Hose ........11
Inspection After Installation .....................................12
BRAKE MASTER CYLINDER ............................13
On Board Inspection ...............................................13
Removal and Installation .........................................13
Disassembly and Assembly ....................................14
BRAKE BOOSTER ...........................................15
On-Vehicle Service ..................................................15
Removal and Installation .........................................15
VACUUM LINES ...............................................17
Removal and Installation .........................................17
Inspection ................................................................17
FRONT DISC BRAKE .......................................18
On-vehicle Inspection ..............................................18
Component ..............................................................18
Removal and Installation of Brake Pad ...................19
Removal and Installation of Brake Caliper and
Disc Rotor ................................................................
19
Disassembly and Assembly of Brake Caliper ..........20
REAR DISC BRAKE .........................................24
On-vehicle Inspection ..............................................24
Exploded View .........................................................24
Removal and Installation of Brake Pad ...................25
Removal and Installation of Brake Caliper and
Disc Rotor ................................................................
25
Brake Caliper ...........................................................26
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
29
General Specification ..............................................29
Brake Pedal .............................................................29
Brake Booster ..........................................................30
Check Valve ............................................................30
Front Disc Brake ......................................................30
Rear Disc Brake ......................................................30

BR-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003532717
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 and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which 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 the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Brake SystemINFOID:0000000003532718
• Always use recommended brake fluid. Refer to MA-10 .
• Do not reuse drained brake fluid.
• Be careful not to splash brake fluid on painted areas.
• To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.
• Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
• Use flare nut wrench when removing and installing brake tube.
• Always check tightening torque when installing brake lines.
• Before working, turn ignition switch to OFF and disconnect con-
nectors for ABS actuator and electric unit (control unit) or battery
terminals.
• Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage.
Refer to BR-20, "
Disassembly and Assembly of Brake Caliper" .
WARNING:
• Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.
SBR686C