2008 INFINITI FX35 lock

BRAKE BOOSTERBR-15
< SERVICE INFORMATION >
C
DE
G H
I
J
K L
M A
B
BR
N
O P
CAUTION:
 Be careful not to splash brake fluid on painted areas; it may 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.
 Be careful not to deform or bend brake tube while removing and installing brake booster.
 Replace clevis pin if it is damaged.
 Be careful not to damage brake booster stud bolt thr eads. If brake booster is tilted or inclined during
installation, dash panel may damage the threads.
 Install the check valve in the correct direction.
1. Remove vacuum hose from brake booster. Refer to BR-16
.
2. Remove brake master cylinder. Refer to BR-12, "
Removal and Installation".
3. Disconnect harness connector from brake booster assembly. (ICC model)
4. Remove snap pin and clevis pin from inside the vehicle. Refer to BR-6, "
Component".
5. Remove nuts from brake booster and brake pedal bracket.
6. Remove brake booster assembly from engine room.
INSPECTION AFTER REMOVAL
Output Rod Length Inspection
1. Using a handy vacuum pump, apply a vacuum of –66.7 kPa (– 500 mmHg, –19.69 inHg) to brake booster.
2. Check output rod length.
INSTALLATION
1. Loosen lock nut to adjust input r od length so that the length “B”
(shown in the figure) satisfies the specified value.
2. After adjusting “B”, temporarily tighten lock nut to install brake booster assembly to the vehicle. At this time, make sure to
install a gasket between brake booster assembly and the engine
room.
3. Connect brake pedal with clevis of input rod.
4. Install brake pedal bracket mounting nuts and bolt and tighten them to the specified torque. BR-6, "
Component".
5. Install brake tube from brake master cylinder to ABS actuator. Refer to BR-10, "
Hydraulic Circuit".
6. Install master cylinder to booster assembly. Refer to BR-12, "
Removal and Installation".
7. Adjust the height and play of brake pedal. BR-5, "
Inspection and Adjustment".
8. Tighten lock nut of input rod to the specified torque. Refer to BR-14, "
Component".
9. Bleed air. Refer to BR-8, "
Bleeding Brake System".
Standard dimension when
applying a vacuum of
− 66.7 kPa ( −500 mmHg, −19.69 inHg):
15.6 − 15.9 mm (0.614 − 0.626 in)
SFIA2146E
Length “B” : 126.5 mm (4.98 in)
SGIA0060E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT DISC BRAKEBR-21
< SERVICE INFORMATION >
C
DE
G H
I
J
K L
M A
B
BR
N
O P
3. Remove sliding pins and sliding pin boots from torque member.
4. Place a wooden block as shown in the figure, and blow air from union bolt mounting hole to remove pistons and piston boots.
CAUTION:
Do not get your fingers caught in piston.
5. Using a flat-bladed screwdriver, remove piston seal from cylin- der body.
CAUTION:
Be careful not to damage cylinder inner wall.
INSPECTION AFTER DISASSEMBLY
Cylinder Body
CAUTION:
Use new brake fluid to clean. Do not use mi neral oils such as gasoline or kerosene.
 Check the inner wall of cylinder for corrosion, wear, and damage. If a malfunction is detected, replace cylin-
der body.
 Minor flaws caused by corrosion or a foreign material can be removed by polishing a surface of the inner wall with a fine sandpaper. Replace cylinder body, if necessary.
Torque Member
Check for wear, cracks, and damage. If a malfunc tion is detected, replace the torque member.
Piston
CAUTION:
The piston sliding surface is plated. Do not polish with sandpaper.
Check piston surface for corrosion, wear, and damage. If a malfunction is detected, replace applicable part.
Sliding Pin, Sliding Pin Bolt, and Sliding Pin Boot
Check sliding pins, sliding pin bolts and sliding pin boots for wear, damage, and cracks. If a malfunction is
detected, replace applicable part.
ASSEMBLY
1. Apply polyglycol ether based lubricant to the piston seal, and
install them to the cylinder body.
CAUTION:
Do not reuse piston seal.
BRB0032D
SFIA0141E
SFIA2920E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BR-26
< SERVICE INFORMATION >
REAR DISC BRAKE
CAUTION:
 Refill with new brake fluid “DOT 3”.
 Do not reuse drained brake fluid.
1. Install disc rotor.CAUTION:
Align the matching marks of disc rotor and wheel hub, which were marked at the time of removal
when reusing disc rotor.
2. Install caliper assembly to the vehicle, and tighten bolts to the specified torque. Refer to BR-24, "
Compo-
nent".
CAUTION:
Before installing caliper assembly to the vehicle , wipe off oil and grease on washer seats on axle
assembly and mounting surface of caliper assembly.
3. Install brake hose to caliper assembly and tighten union bolt to the specified torque. Refer to BR-24,
"Component".
CAUTION:
 Do not reuse copper washer for union bolts.
 Securely install brake hose to protrusion on caliper assembly.
4. After installing caliper assembly, refill with new brake fluid and bleed air. Refer to BR-8, "
Bleeding Brake
System".
5. Install tires to the vehicle.
Disassembly and Assembly of Brake Caliper AssemblyINFOID:0000000001327637
NOTE:
Do not remove torque member, brake pads, shims, shim cover and pad retainers, when disassembling or
assembling cylinder body.
DISASSEMBLY
1. Remove sliding pin bolts, and then remove brake pads, shims, shim cover, and pad retainer from torque
member and cylinder.
CAUTION:
Do not drop brake pads, shims, shim cover and pad retainer from torque member.
2. Remove sliding pin boot from torque member.
3. As shown in the figure, using a flat-bladed screwdriver, remove retaining ring from cylinder body.
4. Place a wooden block as shown in the figure, and blow air from union bolt mounting hole to remove pistons and piston boots.
CAUTION:
Do not get your fingers caught in piston.
SBR028A
BRD0041D
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BRC-10
< SERVICE INFORMATION >[VDC/TCS/ABS]
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
SchematicINFOID:0000000001327660
FunctionsINFOID:0000000001327661
VDC
 In addition to the TCS/ABS function, the driver
steering amount and brake operation amount are detected
from steering angle sensor and pressure sensor, and the vehicle's driving status (amount of under steering /
over steering) is determined from information from G s ensor, wheel sensor, etc., and this information is used
to improve vehicle stability by controlling the braking and engine power to all four wheels.
 SLIP indicator lamp flashes to inform the driver of VDC operation.
 During VDC operation, body and brake pedal lightly vibrate and mechanical noises may be heard. This is
normal.
 ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when vehicle is subject
to strong shaking or large vibration, such as when vehi cle is on a turn table, a ship or a steep slope such as
bank while engine is running. In this case, restart engine on a normal road, and if ABS warning lamp, VDC
OFF indicator lamp, and SLIP indicator lamp turn off, there is no malfunction.
TCS
 The wheel spin of the drive wheels is detected by ABS actuator and electric unit (control unit) from the wheel
speed signals from four wheels, so if wheel spin occurs , drive wheel right and left brake fluid pressure con-
trol and engine fuel cut are performed while throttle value is restricted to reduce the engi\
ne torque and
decrease the amount of wheel spin. In addition, the degree throttle is opened is controlled to achieve the
optimum engine torque.
 Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.
 TCS may be activated any time vehicle suddenly accelerates, suddenly down/upshifts, or is driven on a road with a varying surface friction coefficient.
 During TCS operation, it informs a driver of sy stem operation by flashing SLIP indicator lamp.
ABS
 The Anti-Lock Braking System is a function that detec ts wheel revolution while braking, and it improves han-
dling stability during sudden braking by electrically prev enting 4 wheel lock. Maneuverability is also improved
for avoiding obstacles.
 If the electrical system malfunc tions, then the fail-safe function star ts, the ABS becomes inoperative, and
ABS warning lamp turns on.
 Electrical system diagnosis by CONSULT-III is available.
 During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
 When starting engine, or just after starting vehicle, brake pedal may vibrate or motor operating noises may be heard from engine compartment. This is a normal status of operation check.
SFIA1160E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BRC-52
< SERVICE INFORMATION >[VDC/TCS/ABS]
WHEEL SENSORS
WHEEL SENSORS
Removal and InstallationINFOID:0000000001327698
REMOVAL
1. Disconnect wheel sensor connector.
2. Remove wheel sensor mounting bolts, grommets (front sensor) and clip.
3. Remove wheel sensor.
CAUTION:
Be careful of the followin
g when installing sensor.
 As much as possible, avoid rotati ng sensor when removing it. Pull sensors out without pulling on
sensor harness.
 Take care to avoid damaging sensor edges or roto r teeth. Remove wheel sensor first before remov-
ing front wheel hub and bearing assembly and rear fina l drive. This is to avoid damage to sensor wir-
ing and loss of sensor function.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Be careful of the follow ing when installing sensor. Tighten in stallation bolts to specified torques.
 When installing, make sure there is no foreign material such as iron chips on pick-up and mounting
hole of sensor. Make sure no foreign material h as been caught in the sensor rotor. Remove any for-
eign material and clean the mount.
 When installing front sensor, be sure to press rubber grommets in until they lock at the three loca-
tions shown in the figure (2 at shock absorbers and 1 at body pa nel). When installed, harness must
not be twisted. White line on ha rness must be visible from front.
 When installing rear sensor, attach harness at rear suspension member securely. Besides, harness
must not be twisted when installed.
PFIA0600E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BRC-54
< SERVICE INFORMATION >[VDC/TCS/ABS]
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
Removal and InstallationINFOID:0000000001327700
REMOVAL
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Loosen brake tube flare nuts, then remove brake tubes
from ABS actuator and electric unit (control unit).
3. Remove LH side fender protector. Refer to EI-24
.
4. Remove ABS actuator and electric unit (control unit) mounting nuts.
5. Remove ABS actuator and electric unit (control unit) from vehicle.
CAUTION:
Be careful of the following wh en removing ABS actuator and electric unit (control unit).
 If the part number on the part number label (p asted on actuator upper surface) is the same, ABS
actuator and electric unit (c ontrol unit) can not be used on another vehicle.
If it is used on another vehicle, ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp
may turn ON or VDC/TCS/ABS may not operate normally.
When replacing ABS actuator an d electric unit (control unit), must use new service parts.
 Before servicing, disconnect battery cables.
 To remove brake tube, use a flare nut torque wrench to prevent flare nuts and brake tube from being
damaged. To install, use a flare nut torque wren ch (commercial service tool) and tighten to the spec-
ified torque.
 Do not apply excessive impact to actuator, such as dropping it.
 Do not remove and install ABS actuator and el ectric unit (control unit) by holding harness.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Be careful of the following wh en installing ABS actuator and electric unit (control unit).
 Tighten the mounting bolts and nuts to the specified torque.
 After the work, bleed air from brake piping. Refer to BR-8, "
Bleeding Brake System".
 After installing vehicle harness connector in th e actuator, make sure connector is securely locked.
 When replacing ABS actuator and el ectric unit (control unit), calibrate steering angle sensor neutral
position and decel G sensor. Refer to BRC-8
.
PFIA0601E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CO-8
< SERVICE INFORMATION >[VQ35DE]
OVERHEATING CAUSE ANALYSIS
Except cool-
ing system
parts mal-
function— Overload on engine
Abusive driving
High engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Powertrain sy stem malfunc-
tion
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow Blocked bumper —
—
Blocked radiator grille
Installed car brassiere
Mud contamination or paper
clogging
Blocked radiator —
Blocked condenser Blocked air flow
Installed large fog lamp
Symptom Check items
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CO-10
< SERVICE INFORMATION >[VQ35DE]
ENGINE COOLANT
ENGINE COOLANT
InspectionINFOID:0000000001325845
LEVEL CHECK
 Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
 Adjust the engine coolant level as necessary.
LEAK CHECK
 To check for leaks, apply pressure to the cooling system with the
radiator cap tester (commercial service tool) (A) and radiator cap
tester adapter (commercial service tool) (B).
WARNING:
Do not remove radiator cap when engine is hot. Serious burns
could occur from high-pressure engine coolant escaping from
radiator.
CAUTION:
Higher test pressure than speci fied may cause radiator damage.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.
 If anything is found, repair or replace damaged parts.
Changing Engine CoolantINFOID:0000000001325846
WARNING:
 To avoid being scalded, do not change en gine coolant when the engine is hot.
 Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressu re. Then turn radiator cap all the way.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tool.
2. Open radiator drain plug at the bottom of radiator, and then
remove radiator cap.
When draining all of engine cool ant in the system, open water drai n plugs on cylinder block. Refer
to EM-123, "
Disassembly and Assembly".
SMA412B
Testing pressure
: 157 kPa (1.6 kg/cm
2, 23 psi)
PBIC5121J
SBIA0444E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C