2007 INFINITI FX35 brake fluid

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-227
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Revision: 2006 July 2007 FX35/FX45
Vehicle Does Not Decelerate by Engine BrakeNCS001I4
SYMPTOM:
No engine brake is applied when the gear is shifted from the 2nd to 1st gear.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "Judgement Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 3 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3. CHECK A/T POSITION
Check the A/T position. Refer to AT- 2 3 1 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT- 2 3 1 , "
Adjustment of A/T
Position" .
4. CHECK MANUAL MODE SWITCH
Check the manual mode switch. Refer to AT- 1 6 6 , "
DTC P1815 MANUAL MODE SWITCH" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
SAT638A
SCIA2119E

BR-1
BRAKE SYSTEM
F BRAKES
CONTENTS
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SECTION
A
B
BR
Revision: 2006 July 2007 FX35/FX45
BRAKE SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Procedures without Cowl Top Cover ..... 3
Precautions for Brake System ............................. ..... 3
PREPARATION ...................................................... ..... 4
Commercial Service Tools ................................... ..... 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 5
NVH Troubleshooting Chart ................................ ..... 5
BRAKE PEDAL ..................................................... ..... 6
Inspection and Adjustment .................................. ..... 6
ADJUSTMENT ................................................. ..... 6
Components ........................................................ ..... 7
Removal and Installation ..................................... ..... 7
REMOVAL ........................................................ ..... 7
INSPECTION AFTER REMOVAL .................... ..... 8
INSTALLATION ................................................ ..... 8
BRAKE FLUID ....................................................... ..... 9
On-Board Inspection ........................................... ..... 9
LEVEL CHECK ................................................ ..... 9
Drain and Refill .................................................... ..... 9
Bleeding Brake System ....................................... ... 10
BRAKE TUBE AND HOSE .................................... ....11
Hydraulic Circuit .................................................. .... 11
Removal and Installation of Front Brake Tube and
Brake Hose ......................................................... .... 11
REMOVAL ........................................................ .... 11
INSTALLATION ................................................ .... 11
Removal and Installation of Rear Brake Piping and
Brake Hose ......................................................... ... 12
REMOVAL ........................................................ ... 12
INSTALLATION ................................................ ... 12
Inspection After Installation ................................. ... 12
BRAKE MASTER CYLINDER ............................... ... 13
On-Board Inspection ........................................... ... 13
LEAK INSPECTION ......................................... ... 13
Components ........................................................ ... 13
Removal and Installation ..................................... ... 13 REMOVAL ........................................................
... 13
INSTALLATION ................................................ ... 14
Disassembly and Assembly ................................. ... 14
DISASSEMBLY ................................................ ... 14
ASSEMBLY ...................................................... ... 14
BRAKE BOOSTER ................................................ ... 15
On-Vehicle Service .............................................. ... 15
OPERATING CHECK ....................................... ... 15
AIRTIGHT CHECK ........................................... ... 15
Components ........................................................ ... 15
Removal and Installation ..................................... ... 16
REMOVAL ........................................................ ... 16
INSPECTION AFTER REMOVAL .................... ... 16
INSTALLATION ................................................ ... 16
VACUUM LINES .................................................... ... 17
Components ........................................................ ... 17
Removal and Installation ..................................... ... 17
Inspection ............................................................ ... 18
VISUAL INSPECTION ...................................... ... 18
CHECK VALVE INSPECTION .......................... ... 18
FRONT DISC BRAKE ............................................ ... 19
On-Vehicle Inspection .......................................... ... 19
PAD WEAR INSPECTION ................................ ... 19
Components ........................................................ ... 19
Removal and Installation of Brake Pad ............... ... 20
REMOVAL ........................................................ ... 20
INSTALLATION ................................................ ... 20
Removal and Installation of Brake Caliper Assembly ... 20
REMOVAL ........................................................ ... 20
INSTALLATION ................................................ ... 21
Disassembly and Assembly of Brake Caliper
Assembly ............................................................. ... 21
DISASSEMBLY ................................................ ... 21
INSPECTION AFTER DISASSEMBLY ............. ... 22
ASSEMBLY ...................................................... ... 22
DISC ROTOR INSPECTION ............................ ... 24
Brake Burnishing Procedure ................................ ... 24
REAR DISC BRAKE .............................................. ... 25
On-Vehicle Inspection .......................................... ... 25

PRECAUTIONS BR-3
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Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NFS000LN
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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal 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
harness connectors.
Precautions for Procedures without Cowl Top CoverNFS000LO
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions for Brake SystemNFS000TE

Clean dust on front brake and rear brake with a vacuum dust collector. Do not blow with compressed air.

Recommended fluid is brake fluid “DOT 3”. MA-12, "Fluids and Lubricants" .

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 new brake fluid.

Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

Use a flare nut crowfoot and torque wrench when installing
brake tube.

When installing brake piping, be sure to check torque.

Before working, turn ignition switch OFF and disconnect con-
nectors for ABS actuator and electric unit (control unit) or battery
negative terminal.

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-24, "
Brake Burnishing Procedure" (Front disc
brake), BR-30, "
Brake Burnishing Procedure" (Rear disc brake).
WARNING:

Clean brake pads and shoes with a waste cloth, then clean with a dust collector.
PIIB3706J
SBR686C

BRAKE FLUID BR-9
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Revision: 2006 July 2007 FX35/FX45
BRAKE FLUIDPFP:KN100
On-Board InspectionNFS000LU
LEVEL CHECK

Make sure the fluid level in reservoir tank is within the standard
(between MAX and MIN lines).

Visually check around reservoir tank for fluid leakage.

If fluid level is excessively low, check brake system for leakage.

Release parking brake pedal and see if brake warning lamp
goes off. If not, check brake system for fluid leakage.
Drain and RefillNFS000LV
CAUTION:

Refill with new brake fluid “DOT3”.

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water
immediately.

Before working, disconnect connectors of ABS actuator and electric unit (control unit) or battery
negative terminal.
1. Connect a vinyl tube to each bleed valve.
2. Depress brake pedal, loosen each bleed valve, and gradually remove brake fluid.
3. Make sure there is no foreign material in reservoir tank, and refill with new brake fluid.
4. Rest foot on brake pedal. Loosen bleed valve. Slowly depress pedal until it stops. Tighten bleed valve. Release brake pedal.
Repeat this process a few times, then pause to add new brake
fluid to master cylinder. Continue until new brake fluid flows out.
5. Bleed Air. Refer to BR-10, "
Bleeding Brake System" .
SFIA1032E
BRA0007D
SBR995

BR-10
BRAKE FLUID
Revision: 2006 July 2007 FX35/FX45
Bleeding Brake SystemNFS000LW
CAUTION:

Carefully monitor brake fluid level in reservoir tank
during bleeding operation.

Refill with new brake fluid “DOT 3”. Make sure it is at least
half way at all times while bleeding air out of system.

Place a container under master cylinder not to spill brake
fluid.

Turn ignition switch OFF and disconnect ABS actuator and
electric unit (control unit) or battery negative terminal.

Bleed air in the following order. Right rear brake → Left
front brake → Left rear brake → Right front brake
1. Connect a transparent vinyl tube to bleed valve.
2. Fully depress brake pedal several times.
3. With brake pedal depressed, open bleed valve to release air.
4. Close bleed valve.
5. Release brake pedal slowly.
6. Repeat steps 2, through 5, until clear brake fluid comes out of bleed valve.
SBR995
SBR419C

BRAKE TUBE AND HOSE BR-11
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Revision: 2006 July 2007 FX35/FX45
BRAKE TUBE AND HOSEPFP:46210
Hydraulic CircuitNFS000LX
CAUTION:

All brake hoses and tubes must be free from excessive bending, twisting and pulling.

Make sure there is no interference with other parts when turning steering both clockwise and
counterclockwise.

The brake tubes and hoses is an important safety part. If a brake fluid leak is detected, always dis-
assemble the parts. Replace applicable part with a new one, if necessary.

Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water
immediately.

Do not bend or twist brake hose sharply, or strongly pull it.

When removing components, cover brake line connections so that no dirt, no dust, or other for-
eign matter gets in.

Refill with new brake fluid “ DOT 3 ”.

Do not reuse drained brake fluid.
Removal and Installation of Front Brake Tube and Brake Hose NFS000LY
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill" .
2. Using a flare nut wrench, remove brake tube from brake hose.
3. Remove union bolt and remove brake hose from caliper assembly.
4. Remove lock plate and remove brake hose from vehicle.
INSTALLATION
1. Position brake hose by aligning with the protrusion on caliper assembly, and them tighten union bolt to the specified torque.
CAUTION:
Do not reuse copper washer.
2. Install brake hose to brake tube. Temporarily tighten flare nut by hand as much as possible. Secure them it to bracket with lock
plate.
3. Using a flare nut torque wrench, tighten flare nut to the specified torque.
4. Refill brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake
System" .
PFIA0818E
SFIA1204E

BR-12
BRAKE TUBE AND HOSE
Revision: 2006 July 2007 FX35/FX45
Removal and Installation of Rear Brake Piping and Brake Hose NFS000LZ
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill" .
2. Using a flare nut wrench, remove brake tube from brake hose.
3. Remove union bolt, and then remove brake hose from caliper assembly.
4. Remove lock nut plate and remove brake hose from vehicle.
INSTALLATION
1. Install brake hose to caliper assembly positioning hole and then tighten union bolt to the specified torque. Refer to BR-11, "
Hydraulic Circuit" .
CAUTION:
Do not reuse copper washer.
2. Connect brake hose to brake tube. Temporarily tighten flare nut by hand as much as possible.
3. Tighten brake hose mounting bolt to the specified torque.
4. Using a flare nut torque wrench, tighten flare nut to the specified torque. Refer to BR-11, "
Hydraulic Circuit" .
5. After installation, bleed air. Refer to BR-10, "
Bleeding Brake
System" .
Inspection After InstallationNFS000M0
CAUTION:
If a leak is detected at the connections, retighten it or replace damaged part if necessary.
1. Check brake lines (tubes and hoses), and connections for fluid leakage, damage, twist, deformation, con- tact with other parts, and loose connections.
2. While depressing brake pedal under a force of 785 N (80 kg, 177 lb) with engine running for approximately 5 seconds, check for fluid leak from each part.
SFIA1942E

BRAKE MASTER CYLINDER BR-13
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Revision: 2006 July 2007 FX35/FX45
BRAKE MASTER CYLINDERPFP:46010
On-Board InspectionNFS000M1
LEAK INSPECTION

Check for leaking in a master cylinder installation surface, a reservoir tank installation surface, and brake
tube connections.
ComponentsNFS000M3
Removal and InstallationNFS000M2
CAUTION:
Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe it off and them wash it away with water imme-
diately.
REMOVAL
1. Remove cowl top cover. Refer to EI-23, "COWL TOP" .
2. Drain brake fluid. Refer to BR-9, "
Drain and Refill" .
3. Remove harness connectors for fluid level sensor and pressure sensor.
4. Using a flare nut wrench, remove brake tube from master cylinder assembly.
1. Reservoir cap 2. Strainer 3. Reservoir tank
4. Grommet 5. Cylinder body 6. Pin
7. Pressure sensor 8. Pressure sensor (Only ICC models)
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
: Apply brake fluid.
PFIA0815E