Nissan Murano Z51 (2012 year). Manual — part 7
BR-8
< PERIODIC MAINTENANCE >
BRAKE PEDAL
PERIODIC MAINTENANCE
BRAKE PEDAL
Inspection and Adjustment
INFOID:0000000007543245
INSPECTION
Brake Pedal Height
Check the brake pedal height (H
1
) between the dash lower panel (1)
and the brake pedal upper surface.
CAUTION:
Remove the floor trim.
Stop Lamp Switch and ASCD Brake Switch
Check the clearance (C) between stopper rubber (1) and stop lamp
switch and ASCD brake switch (2) threaded end.
CAUTION:
The stop lamp must be turned off when the brake pedal is
released.
NOTE:
Pull the brake pedal pad to make the clearance between stopper
rubber and stop lamp switch and ASCD brake switch threaded end.
Brake Pedal Play
Press the brake pedal. Check the brake pedal play (A).
Depressed Brake Pedal Height
Check the brake pedal height (H
2
) between the dash lower panel (1)
and the brake pedal upper surface when depressing the brake pedal
at 490 N (50 kg, 110 lb) while turning engine ON.
CAUTION:
Remove the floor trim.
Standard
H
1
: Refer to
JPFIA0065ZZ
Standard
C
: Refer to
.
JPFIA0122ZZ
Standard
A
: Refer to
.
JPFIA0121ZZ
Standard
H
2
: Refer to
.
JPFIA0068ZZ
Revision: 2013 February
2012 MURANO
BRAKE PEDAL
BR-9
< PERIODIC MAINTENANCE >
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ADJUSTMENT
Brake Pedal Height
1.
Remove instrument lower panel LH. Refer to
2.
Disconnect the stop lamp switch and ASCD brake switch harness connector.
3.
Turn the stop lamp switch and ASCD brake switch 45
°
counterclockwise.
4.
Loosen the input rod lock nut (1). Adjust the brake pedal height
(H
1
) to the specification. Tighten the input rod lock nut to the
specification. Refer to
.
CAUTION:
The threaded end of the input rod (2) must project to the
inner side (L) of the clevis (3).
Stop Lamp Switch and ASCD Brake Switch
1.
Remove instrument lower panel LH. Refer to
2.
Disconnect the stop lamp switch and ASCD brake switch harness connector.
3.
Turn the stop lamp switch and ASCD brake switch 45
°
counterclockwise.
4.
Press-fit stop lamp switch and ASCD brake switch (2) until stop
lamp switch and ASCD brake switch hits the stopper rubber (1)
45
°
clockwise.
CAUTION:
• The clearance (C) between the stopper rubber and stop
lamp switch and ASCD brake switch threaded end must
be the specified value. Refer to
.
• The stop lamp must be turned off when the brake pedal is
released.
Brake Pedal Play
1.
Remove instrument lower panel LH. Refer to
2.
Disconnect the stop lamp switch and ASCD brake switch harness connector.
3.
Turn the stop lamp switch and ASCD brake switch 45
°
counterclockwise.
JPFIA0003ZZ
Standard
H
1
: Refer to
JPFIA0279ZZ
JPFIA0122ZZ
Revision: 2013 February
2012 MURANO
BR-10
< PERIODIC MAINTENANCE >
BRAKE PEDAL
4.
Press-fit stop lamp switch and ASCD brake switch (2) until stop
lamp switch and ASCD brake switch hits the stopper rubber (1)
45
°
clockwise.
CAUTION:
• The clearance (C) between the stopper rubber and stop
lamp switch and ASCD brake switch threaded end must
be the specified value. Refer to
.
• The stop lamp must be turned off when the brake pedal is
released.
JPFIA0122ZZ
Revision: 2013 February
2012 MURANO
BRAKE FLUID
BR-11
< PERIODIC MAINTENANCE >
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BRAKE FLUID
Inspection
INFOID:0000000007543246
BRAKE FLUID LEVEL
• Check that the fluid level in the sub tank is within the specified
range (MAX – MIN lines).
• Visually check for any brake fluid leakage around the sub tank,
reservoir tank and hose.
• Check the brake system for any leakage if the fluid level is
extremely low (lower than MIN).
• Check the brake system for fluid leakage if the warning lamp
remains illuminated even after the parking brake is released.
BRAKE LINE
1.
Check brake line (tubes and hoses) for cracks, deterioration or other damage. Replace any damaged
parts.
2.
Check for fluid leakage by fully depressing brake pedal while
engine is running.
CAUTION:
If leakage occurs around joints, retighten or, if necessary,
replace damaged parts.
Draining
INFOID:0000000007543247
CAUTION:
• Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with water if it gets on a painted surface.
• Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) con-
nector or the battery negative terminal before draining.
1.
Connect a vinyl tube to the bleed valve.
2.
Depress the brake pedal and loosen the bleeder valve to gradu-
ally discharge brake fluid.
Refilling
INFOID:0000000007543248
CAUTION:
Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) connec-
tor or the battery negative terminal before refilling.
1.
Check that there is no foreign material in the sub tank, and refill with new brake fluid.
CAUTION:
Never reuse drained brake fluid.
JPFIA0295ZZ
SBR389C
BRA0007D
Revision: 2013 February
2012 MURANO
BR-12
< PERIODIC MAINTENANCE >
BRAKE FLUID
2.
Loosen the bleeder valve, slowly depress the brake pedal to the full stroke, and then release the pedal.
Repeat this operation at intervals of 2 or 3 seconds until all brake fluid is discharged. Then close the
bleeder valve with the brake pedal depressed. Repeat the same work on each wheel.
3.
Perform the air bleeding. Refer to
BR-12, "Bleeding Brake System"
.
Bleeding Brake System
INFOID:0000000007543249
CAUTION:
• Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) con-
nector or the battery negative terminal before performing the work.
• Monitor the fluid level in the sub tank during the air bleeding.
• Always use new brake fluid for refilling. Never reuse the drained brake fluid.
1.
Connect a vinyl tube to the bleeder valve of the rear right brake.
2.
Fully depress the brake pedal 4 to 5 times.
3.
Loosen the bleeder valve and bleed air with the brake pedal depressed, and then quickly tighten the
bleeder valve.
4.
Repeat steps 2 and 3 until all of the air is out of the brake line.
5.
Tighten the bleeder valve to the specified torque.
• Front disc brake
- 1 piston type: refer to
BR-37, "BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Exploded View"
- 2 piston type: refer to
BR-41, "BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) : Exploded View"
• Rear disc brake: refer to
BR-47, "BRAKE CALIPER ASSEMBLY : Exploded View"
.
6.
Perform steps 1 to 5 for the rear right brake
→
front left brake
→
rear left brake
→
and front right brake in
order.
7.
Check that the fluid level in the sub tank is within the specified range after air bleeding. Refer to
Revision: 2013 February
2012 MURANO
BRAKE MASTER CYLINDER
BR-13
< PERIODIC MAINTENANCE >
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BRAKE MASTER CYLINDER
Inspection
INFOID:0000000007543250
FLUID LEAK
Check for brake fluid leakage from the master cylinder mounting face, reservoir tank mounting face, sub tank
mounting face, brake tube connections and hose connections.
Revision: 2013 February
2012 MURANO
BR-14
< PERIODIC MAINTENANCE >
BRAKE BOOSTER
BRAKE BOOSTER
Inspection
INFOID:0000000007543251
OPERATION
Depress the brake pedal several times at 5-second intervals with the
engine stopped. Start the engine with the brake pedal fully
depressed. Check that the clearance between brake pedal and dash
lower panel decreases.
NOTE:
A slight impact with a small click may be felt on the pedal when the
brake pedal is fully depressed. This is a normal phenomenon due to
the brake system operation.
AIR TIGHT
• Idle the engine for 1 minute to apply vacuum to the brake booster,
and stop the engine. Then depress the brake pedal several times
at 5-second intervals until the accumulated vacuum is released to
atmospheric pressure. Check that the clearance between brake
pedal and dash lower panel gradually increases (A
→
B
→
C) each
time the brake pedal is depressed during this operation.
• Depress the brake pedal with the engine running. Then stop the
engine while holding down the brake pedal. Check that the brake
pedal stroke does not change after holding down the brake pedal
for 30 seconds or more.
NOTE:
A slight impact with a small click may be felt on the pedal when the
brake pedal is fully depressed. This is a normal phenomenon due
to the brake system operation.
BRA0037D
JPFIA0043ZZ
JPFIA0044ZZ
Revision: 2013 February
2012 MURANO
FRONT DISC BRAKE
BR-15
< PERIODIC MAINTENANCE >
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FRONT DISC BRAKE
BRAKE PAD
BRAKE PAD : Inspection and Adjustment
INFOID:0000000007543252
INSPECTION
Check brake pad wear thickness from an inspection hole on cylinder
body. Check using a scale if necessary.
ADJUSTMENT
CAUTION:
• Burnish contact surfaces between pads according to the following procedure after refinishing or
replacing pads, or if a soft pedal occurs at very low mileage.
• Be careful of vehicle speed because the brake does not operate firmly/securely until pads and disc
rotor are securely fitted.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.
Drive vehicle on straight, flat road.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
Repeat steps 1 to 3 until pad and disc rotor are securely fitted.
DISC ROTOR
DISC ROTOR : Inspection and Adjustment
INFOID:0000000007543253
INSPECTION
Appearance
Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace if there are any abnormal
conditions.
Runout
1.
Fix the disc rotor to the wheel hub and bearing assembly with
wheel nuts (2 points at least).
2.
Check the wheel bearing axial end play before the inspection.
Refer to
(AWD).
3.
Inspect the runout with a dial gauge to measured at 10 mm (0.39
in) inside the disc edge.
4.
Find the installation position with a minimum runout by shifting the disc rotor-to-wheel hub and bearing
assembly installation position by one hole at a time if the runout exceeds the limit value.
5.
Refinish the disc rotor if the runout is outside the limit even after performing the above operation. [When
refinishing, use the Pro-Cut PEM On-Car brake Lathe (Tool No. 38-PFM90.5) or equivalent.]
CAUTION:
Limit
Wear thickness
: Refer to
.
BRA0010D
Limit
Runout
: Refer to
.
SBR019B
Revision: 2013 February
2012 MURANO
BR-16
< PERIODIC MAINTENANCE >
FRONT DISC BRAKE
• Check in advance that the thickness of the disc rotor is wear thickness + 0.3 mm (0.012 in) or
more.
• If the thickness is less than wear thickness + 0.3 mm (0.012 in), replace the disc rotor.
Thickness
Check the thickness of the disc rotor using a micrometer. Replace
the disc rotor if the thickness is below the wear limit.
ADJUSTMENT
CAUTION:
• Burnish contact surfaces between pads according to the following procedure after refinishing or
replacing pads, or if a soft pedal occurs at very low mileage.
• Be careful of vehicle speed because the brake does not operate firmly/securely until pads and disc
rotor are securely fitted.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.
Drive vehicle on straight, flat road.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
Repeat steps 1 to 3 until pad and disc rotor are securely fitted.
Limit
Wear thickness
: Refer to
.
Limit
Wear thickness
: Refer to
.
Thickness variation
: Refer to
.
SBR020B
Revision: 2013 February
2012 MURANO
REAR DISC BRAKE
BR-17
< PERIODIC MAINTENANCE >
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REAR DISC BRAKE
BRAKE PAD
BRAKE PAD : Inspection and Adjustment
INFOID:0000000007543254
INSPECTION
Check brake pad wear thickness from an inspection hole on cylinder
body. Check using a scale if necessary.
ADJUSTMENT
CAUTION:
• Burnish contact surfaces between pads according to the following procedure after refinishing or
replacing pads, or if a soft pedal occurs at very low mileage.
• Be careful of vehicle speed because the brake does not operate firmly/securely until pads and disc
rotor are securely fitted.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.
Drive vehicle on straight, flat road.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
Repeat steps 1 to 3 until pad and disc rotor are securely fitted.
DISC ROTOR
DISC ROTOR : Inspection and Adjustment
INFOID:0000000007543255
INSPECTION
Appearance
Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace if there are any abnormal
conditions.
Runout
1.
Fix the disc rotor to the wheel hub and bearing assembly with
wheel nuts (2 points at least).
2.
Check the wheel bearing axial end play before the inspection.
Refer to
(2WD),
(AWD).
3.
Inspect the runout with a dial gauge to measured at 10 mm (0.39
in) inside the disc edge.
4.
Find the installation position with a minimum runout by shifting the disc rotor-to-wheel hub and bearing
assembly installation position by one hole at a time if the runout exceeds the limit value.
5.
Refinish the disc rotor if the runout is outside the limit even after performing the above operation. [When
refinishing, use the Pro-Cut PEM On-Car brake Lathe (Tool No. 38-PFM90.5) or equivalent.]
CAUTION:
Limit
Wear thickness
: Refer to
.
BRA0010D
Limit
Runout
: Refer to
.
SBR019B
Revision: 2013 February
2012 MURANO
BR-18
< PERIODIC MAINTENANCE >
REAR DISC BRAKE
• Check in advance that the thickness of the disc rotor is wear thickness + 0.3 mm (0.012 in) or
more.
• If the thickness is less than wear thickness + 0.3 mm (0.012 in), replace the disc rotor.
Thickness
Check the thickness of the disc rotor using a micrometer. Replace
the disc rotor if the thickness is below the wear limit.
ADJUSTMENT
CAUTION:
• Burnish contact surfaces between pads according to the following procedure after refinishing or
replacing pads, or if a soft pedal occurs at very low mileage.
• Be careful of vehicle speed because the brake does not operate firmly/securely until pads and disc
rotor are securely fitted.
• Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.
Drive vehicle on straight, flat road.
2.
Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3.
Drive without depressing brake for a few minutes to cool the brake.
4.
Repeat steps 1 to 3 until pad and disc rotor are securely fitted.
Limit
Wear thickness
: Refer to
.
Limit
Wear thickness
: Refer to
.
Thickness variation
: Refer to
.
SBR020B
Revision: 2013 February
2012 MURANO
BRAKE PEDAL
BR-19
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
BRAKE PEDAL
Exploded View
INFOID:0000000007543256
Removal and Installation
INFOID:0000000007543257
REMOVAL
1.
Remove instrument lower panel LH. Refer to
2.
Remove knee protector.
• With heated steering wheel (without electric motor): Refer to
ST-35, "WITHOUT ELECTRIC MOTOR :
• With heated steering wheel (with electric motor): Refer to
ST-38, "WITH ELECTRIC MOTOR : Removal
• Without heated steering wheel: Refer to
ST-79, "Removal and Installation"
.
3.
Disconnect the stop lamp switch and ASCD brake switch harness connectors.
4.
Remove snap pin and clevis pin from clevis of brake booster.
5.
Remove the brake pedal assembly.
CAUTION:
Hold the brake booster and master cylinder so as not to drop out or contact them to other parts.
INSTALLATION
Note the following, and install the reverse order of removal.
1.
Clevis pin
2.
Brake pedal assembly
3.
Brake pedal pad
4.
ASCD brake switch
5.
Stop lamp switch
6.
Clip
7.
Snap pin
: Apply multi-purpose grease.
Refer to
for symbols not described on the above.
JPFIA0440GB
Revision: 2013 February
2012 MURANO
BR-20
< REMOVAL AND INSTALLATION >
BRAKE PEDAL
• Apply the multi-purpose grease to the clevis pin and the mating faces. (Not necessary if grease has been
already applied.)
NOTE:
The clevis pin may be inserted in either direction.
Inspection and Adjustment
INFOID:0000000007543258
INSPECTION AFTER REMOVAL
• Check the following items and replace the brake pedal assembly if
necessary.
- Check the brake pedal upper rivet (made by aluminum) (A) for
deformation.
- Check the brake pedal for bend, damage, and cracks on the
welded parts.
- Check the lapping length (X) of sub-bracket (B) and slide plate (C).
• Check clevis pin and plastic stopper (A) for damage and deforma-
tion. If any damage is found, replace clevis pin.
ADJUSTMENT AFTER INSTALLATION
Perform the brake pedal adjustment after installing the brake pedal assembly. Refer to
.
Standard
X
: 5.0 mm (0.197 in) or more
JPFIA0300ZZ
PFIA0756J
Revision: 2013 February
2012 MURANO
BRAKE PIPING
BR-21
< REMOVAL AND INSTALLATION >
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BRAKE PIPING
FRONT
FRONT : Exploded View
INFOID:0000000007543259
1.
Brake tube
2.
ABS actuator and electric unit (con-
trol unit)
3.
Connector
4.
Connector bracket
5.
Master cylinder assembly
6.
Brake booster
7.
Lock plate
8.
Brake hose
9.
Union bolt
10. Copper washer
A.
To front brake hose
B.
To rear brake tube
Refer to
JPFIA0297GB
Revision: 2013 February
2012 MURANO
BR-22
< REMOVAL AND INSTALLATION >
BRAKE PIPING
FRONT : Hydraulic Piping
INFOID:0000000007543260
FRONT : Removal and Installation
INFOID:0000000007543261
REMOVAL
CAUTION:
Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with water if it gets on a painted surface.
1.
Remove tires with power tool.
2.
Drain brake fluid. Refer to
3.
Loosen the flare nut with a flare nut wrench and separate the brake tube from the hose.
CAUTION:
• Never scratch the flare nut and the brake tube.
• Never bend sharply, twist or strongly pull out the brake hoses and tubes.
• Cover open end of brake tubes and hoses when disconnecting to prevent entrance of dirt.
4.
Remove the union bolt and copper washers, and remove the brake hose from the brake caliper assembly.
5.
Remove the lock plate and remove the brake hose.
INSTALLATION
CAUTION:
Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with water if it gets on a painted surface.
1.
Assemble the union bolt and the copper washers to the brake hose.
CAUTION:
Never reuse the copper washer.
1.
ABS actuator and electric unit (con-
trol unit)
2.
Front disc brake
3.
Master cylinder assembly
4.
Brake booster
5.
Connector
6.
Rear disc brake
A.
Brake tube
B.
Brake hose
: Flare nut
: Union bolt
JPFIA0456ZZ
Revision: 2013 February
2012 MURANO
BRAKE PIPING
BR-23
< REMOVAL AND INSTALLATION >
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2.
Align the brake hose pin to the projection (A) of the brake caliper
assembly and tighten the union bolt (1) to the specified torque.
3.
Install the brake tube to the brake hose, temporarily tighten the
flare nut by hand until it does not rotate further, and fix the brake
hose to the bracket with the lock plate.
CAUTION:
Check that all brake hoses and tubes are not twisted and
bent.
4.
Tighten the flare nut to the specified torque with a crowfoot and
torque wrench.
CAUTION:
Never scratch the flare nut and the brake tube.
5.
Refill with new brake fluid and perform the air bleeding. Refer to
BR-12, "Bleeding Brake System"
.
CAUTION:
Never reuse drained brake fluid.
FRONT : Inspection
INFOID:0000000007543262
INSPECTION AFTER INSTALLATION
1.
Check the brake hoses and tubes for the following: no scratches; no twist and deformation; no interfer-
ence with other components when steering the steering wheel; no looseness at connections.
2.
Depress the brake pedal with a force of 785 N (80 kg, 176 lb) and hold down the pedal for approximately
5 seconds with the engine running. Check for any fluid leakage.
CAUTION:
Retighten the applicable connection to the specified torque and repair any abnormal (damaged,
worn or deformed) part if any brake fluid leakage is present.
REAR
REAR : Exploded View
INFOID:0000000007543263
JPFIA0099ZZ
JPFIA0450GB
Revision: 2013 February
2012 MURANO
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