Nissan Murano Z50 (2006 year). Manual - part 46

BRAKE MASTER CYLINDER

BR-19

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6.

Using a pin punch [commercial service tool: diameter approx. 4
mm (0.16 in)], insert the reservoir tank mounting pin into the pin
hole so that the attachment side and the opposite side are iden-
tical.

CAUTION:

Do not reuse reservoir tank grommet and mounting pin.

WITH VDC MODELS
Disassembly

CAUTION:

●

Master cylinder can not be disassembled.

●

Remove the reservoir tank only when absolutely necessary.

1.

Remove clip.

2.

Remove reservoir tank and grommet from cylinder body.

Assembly

CAUTION:

●

Do not use mineral oils such as kerosene, gasoline during the cleaning and assembly process.

●

Do not drop parts. If a part is dropped, do not use it.

1.

Apply brake fluid the grommet and attach to the cylinder body.

CAUTION:

Do not reuse the grommet.

2.

Install reservoir tank onto the cylinder body.

3.

Insert the clip.

PFIA0439E

PFIA0424E

PFIA0424E

BR-20

BRAKE BOOSTER

Revision: 2006 August

2006 Murano

BRAKE BOOSTER

PFP:47200

On-Vehicle Inspection

NFS000E9

OPERATING CHECK

With the engine stopped, change the vacuum to the atmospheric
pressure by depressing the brake pedal several times. Then with
brake pedal fully depressed, start the engine and when the vacuum
pressure reaches the standard, make sure the clearance between
the brake pedal and floor panel decreases.

CAUTION:

Depressing pedal interval is approximately 5 seconds.

AIRTIGHT CHECK

●

Start engine, and stop if after 1 minute. Depress brake pedal
several times slowly. The pedal should go further down the first
tie, and then it should gradually rise thereafter.

●

Depress brake pedal while engine is running, and stop
engine with pedal depressed. The pedal stroke should not
change after holding pedal down for 30 seconds.

CAUTION:

Depressing pedal interval is approximately 5 seconds.

BRA0037D

SBR365AA

BRAKE BOOSTER

BR-21

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Components

NFS000HV

Removal and Installation

NFS000EA

REMOVAL 

CAUTION:

●

Be careful not to deform or bend brake piping while removing and installing the brake booster.

●

Replace clevis pin if it is damaged.

●

Be careful not to damage brake booster stud bolt threads. If brake booster is tilted or inclined dur-
ing installation, the dash panel may damage the threads.

●

Attach the check valve in the correct orientation.

1.

Remove brake master cylinder. Refer to 

BR-14, "BRAKE MASTER CYLINDER"

 .

2.

Remove cowl top cover. Refer to 

EI-20, "COWL TOP"

 .

3.

Remove vacuum hose from the brake booster. Refer to 

BR-23, "VACUUM LINES"

 .

4.

Remove the brake pedal snap pin and clevis pin from inside the vehicle. 

5.

Remove brake tube bracket from dash panel.

6.

Remove nuts from the brake booster and brake pedal assembly.

7.

Remove brake booster assembly from the dash panel.

1.

Master cylinder

2.

Reservoir tank

3.

Brake booster

4.

Gasket

5.

Lock nut

PFIA0441E

BR-22

BRAKE BOOSTER

Revision: 2006 August

2006 Murano

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 the brake booster.

2.

Check output rod length.

INSTALLATION

1.

Loosen the lock nut to adjust the input rod length so that the
length B (in the figure) satisfies the specified value.

2.

After adjusting “B”, temporarily tighten the lock nut to install the
booster assembly to the vehicle. At this time, securely install a
gasket between the booster assembly and the dash panel.

3.

Connect the brake pedal with the clevis of the input rod.

4.

Install the pedal bracket mounting nuts and tighten them to the
specified torque.

5.

Install the master cylinder to the booster assembly. Refer to 

BR-

14, "Removal and Installation"

 .

6.

Adjust the height and play of the brake pedal.

7.

Tighten the lock nut of the input rod to the specified torque.

8.

Install vacuum hose to brake booster. Refer to 

BR-23, "VACUUM LINES"

 .

9.

Install brake tube bracket to dash panel.

10. Install cowl top cover. Refer to 

EI-20, "COWL TOP"

 .

11. Refill new brake fluid and bleed air. Refer to 

BR-11, "Bleeding Brake System"

 .

SBR208E

Standard dimension when applying a vacuum of 

−

66.7 kPa (

−

500 mmHg, 

−

19.69 inHg):

Without VDC models

: 10.4mm (0.409 in)

With VDC models

: 

−

15.7mm (

−

0.6181 in)

Length “B”

: 125 mm (4.92 in)

SGIA0060E

VACUUM LINES

BR-23

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VACUUM LINES

PFP:41920

Components

NFS000HW

Removal and Installation

NFS000EB

CAUTION:

●

Because vacuum hose contains a check valve, it must be installed in the correct orientation. Refer
to the stamp or label to confirm correct installation. The brake booster will not operate normally if
the hose is installed in the wrong direction.

●

Insert the vacuum hose for at least 24 mm (0.94 in).

●

Do not use lubricating oil during assembly.

Inspection

NFS000EC

VISUAL INSPECTION

Check vacuum hose and connections for air tightness, improper attachment, chafing and deterioration.
Repair or replace as necessary.

1.

Clamp

2.

Vacuum hose

3.

Check valve inclusion position stamp
(built-in check valve)

4.

Vacuum tube

5.

Vacuum hose

6.

To brake booster

7.

To intake manifold

SFIA2898E

SBR225B

BR-24

VACUUM LINES

Revision: 2006 August

2006 Murano

CHECK VALVE INSPECTION
Airtightness Inspection

Check vacuum with a handy vacuum pump.

Connected to booster side (1):

 Vacuum decrease should be within 1.3 kPa (10 
mmHg, 0.39 inHg) for 15 seconds under a vacuum 
of 

−

66.7 kPa (

−

500 mmHg, 

−

19.69 inHg)

Connected to engine side (2):

 Vacuum should not exist.

SFIA0210E

FRONT DISC BRAKE

BR-25

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FRONT DISC BRAKE

PFP:41000

On-Vehicle Inspection

NFS000ED

PAD WEAR INSPECTION

●

Check the thickness of the pad from inspection hole of the cylin-
der body. Use a scale for inspection if necessary.

Components

NFS000EE

Standard thickness

: 9.5 mm (0.374 in)

Repair limit thickness

: 2.0 mm (0.079 in)

BRA0010D

1.

Union bolt

2.

Copper washer

3.

Brake hose

4.

Sliding pin bolt

5.

Sliding pin

6.

Cap

7.

Bleed valve

8.

Cylinder body

9.

Sliding pin boot

10. Piston seal

11.

Piston

12. Piston boot

13. Torque member

14. Inner shim cover

15. Inner shim

16. Inner pad

17. Pad retainer

18. Outer pad

19. Outer shim

20. Outer shim cover

21. Torque member mounting bolt

22. Bushing

23. Pad wear sensor

24. Inner pad (RH)

Refer to 

GI-10, "Components"

 and the followings for the symbols in the figure.

1: Apply rubber grease.

2: Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.

PFIA0680E

BR-26

FRONT DISC BRAKE

Revision: 2006 August

2006 Murano

WARNING:

●

Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of air
borne particles or other materials.

CAUTION:

●

While removing cylinder body, never depress the brake pedal because the piston will pop out.

●

It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of the caliper assembly. In this case, suspend cylinder body with wire so as not to
stretch brake hose.

●

Do not damage piston boot.

●

If any shim is subject to serious corrosion, replace it with a new one.

●

Always replace shims and shim covers as a set when replacing brake pads.

●

Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a
soft pedal occurs at very low mileage. Refer to 

BR-30, "BRAKE BURNISHING PROCEDURE"

 .

Removal and Installation of Brake Pad

NFS000EF

REMOVAL

1.

Remove tires from vehicle with power tool.

2.

Remove lower sliding pin bolt.

3.

Suspend cylinder body with a wire and remove the pad and shim
from the torque member.

CAUTION:

When removing the pad retainer from the torque member,
lift the pad retainer in the arrow direction (shown in the fig-
ure) so as not to deform it.

INSTALLATION

1.

Attach the inner shim and shim cover to the inner pad and the outer shim and shim cover to the outer pad.

2.

Push the piston in so that the pad is attached and then attach the cylinder body to the torque member.

NOTE:
Using a disc brake piston tool (commercial service tool), etc., makes it easier to push in the piston.

CAUTION:

●

By pushing in the piston, the brake fluid returns to the master cylinder reservoir tank. Watch the
level of the surface of the reservoir tank.

●

When attaching the pad retainer, attach it firmly so that it
does not float up higher than the torque member, as
shown in the figure.

3.

Install lower sliding pin bolt, and tighten it to the specified torque.

4.

Check brake for drag.

5.

Install the tires to the vehicle.

3: Apply polyglycol ether based lubricant.

: Apply brake fluid.

SBR556E

PFIA0273E

FRONT DISC BRAKE

BR-27

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Removal and Installation of Brake Caliper Assembly

NFS000EG

REMOVAL

1.

Remove tires from vehicle a with power tool.

2.

Drain brake fluid. Refer to 

BR-10, "Drain and Refill"

 .

3.

Remove union bolts and torque member mounting bolts, and remove brake caliper assembly.

4.

Remove disc rotor.

INSTALLATION

CAUTION:

●

Refill with new brake fluid “DOT3”

●

Do not reuse drained brake fluid.

1.

Install disc rotor.

2.

Install caliper assembly to the vehicle, and tighten bolts to the
specified torque. Refer to 

BR-25, "Components"

 .

CAUTION:

Before installing caliper assembly to the knuckle, wipe off
oil from the knuckle spindle washers and mounting surface
of caliper assembly.

3.

Install brake hose to the brake caliper assembly, and tighten
union bolts to the specified torque. Refer to 

BR-25, "Compo-

nents"

 .

CAUTION:

●

Do not reuse the copper washer for union bolts.

●

Attach the brake hose to the brake hose mounting boss.

4.

Refill new brake fluid and bleed air. Refer to 

BR-11, "Bleeding Brake System"

 .

5.

Install the tires to the vehicle.

Disassembly and Assembly of Brake Caliper Assembly

NFS000EH

DISASSEMBLY

1.

Remove slide pin bolts, and then remove the pads, shim, shim
cover, and pad retainers from torque member.

CAUTION:

When removing the pad retainer from the torque member,
lift it in the direction indicated by the arrow in the figure so
that it does not deform.

2.

Remove sliding pins and sliding pin boots from torque member.

PFIA0411E

PFIA0404E

SBR556E

BR-28

FRONT DISC BRAKE

Revision: 2006 August

2006 Murano

3.

Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove piston and piston boot.

CAUTION:

Do not get your fingers caught in the piston.

4.

Using a flat-bladed screwdriver, remove the piston seal from the
cylinder body.

CAUTION:

Be careful not to damage cylinder inner wall.

CALIPER INSPECTION
Cylinder Body

CAUTION:

●

Use new brake fluid to clean. Do not use mineral oils such as gasoline or kerosene.

●

Check inside surface of cylinder for score, rust, wear, damage or presence of foreign materials. If
any of the above conditions are observed, replace cylinder body.

●

Minor damage from rust or foreign materials may be eliminated by polishing surface with a fine
emery paper. Replace cylinder body if necessary.

Torque Member

Check for wear, cracks, and damage. If damage or deformation is present, replace the affected part.

Piston

CAUTION:

●

Piston sliding surface is plated, do not polish with emery paper even if rust of foreign materials
are stuck to sliding surface.

●

Check piston for score, rust, wear, damage or presence of foreign materials. Replace if any of the
above conditions are observed.

Check piston surface for corrosion, wear, and damage. If any non-standard condition is detected, replace
applicable part.

Sliding Pin, Sliding Pin Bolt and Sliding Pin Boot

Check sliding pin, sliding pin bolt and sliding pin boot for wear, damage, and cracks. If damage or deformation
is present, replace the applicable part.

MAA0272D

SFIA0999E

FRONT DISC BRAKE

BR-29

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ASSEMBLY

CAUTION:

When assembling, use only rubber lubricant specified below.
1.

Apply polyglycol ether based lubricant to the piston seal, and
install them to the cylinder body.

2.

Apply brake fluid or rubber grease to the piston boot, place it on
the piston, and insert the piston boot cylinder-side lip into the
cylinder body groove.

CAUTION:

Do not reuse the piston boot.

3.

Insert the piston boot piston-side lip into the piston groove.

CAUTION:

Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.

4.

Install sliding pins and sliding pin boots to torque member.

5.

Attach the inner shim and shim cover to the inner pad and the outer shim and shim cover to the outer pad.

6.

Install cylinder body. Tighten sliding pin bolt to the specified torque.

SFIA2278E

SFIA2498E

SFIA2279E

BR-30

FRONT DISC BRAKE

Revision: 2006 August

2006 Murano

DISC ROTOR INSPECTION
Visual Inspection

Check surface of the disc rotor for uneven wear, cracks, and serious damage. If any of them is detected,
replace applicable part.

Runout Inspection

1.

Using wheel nuts, fix disc rotor to the wheel hub. (2 or more positions)

2.

Check runout using a dial indicator. 
[measured at 10 mm (0.39 in) inside the disc edge]

NOTE:
Make sure that wheel bearing axial end play is with in the speci-
fications before measuring runout. Refer to 

FAX-5, "FRONT

WHEEL HUB AND KNUCKLE"

 .

3.

If runout is outside the limit, find the minimum runout point by
shifting mounting positions of the disc rotor and wheel hub by
one hole.

4.

If runout still out of specification, turn rotor with on-car brake
lathe (“MAD, DL-8700”, “AMMCO 700 and 705” or equivalent).

Thickness Inspection

Using a micrometer, check thickness of the disc rotor. If thickness is
outside the standard, replace disc rotor.

BRAKE BURNISHING PROCEDURE

Burnish the brake contact surface according to the following procedure after refinishing or replacing rotors,
after replacing pads, or if a soft pedal occurs at very low mileage.

CAUTION:

Only perform this procedure under safe road and traffic conditions. Use extreme caution.

1.

Drive the vehicle on a straight smooth road at 50 km/h (31 MPH).

2.

Use medium brake pedal /foot effort to bring the vehicle to a complete stop from 50 km/h (31 MPH).
Adjust brake pedal /foot pressure such that vehicle stopping time equals 3 to 5 seconds.

3.

To cool the brake system, drive the vehicle at 50 km/h (31 MPH) for 1 minute without stopping.

4.

Repeat steps 1 to 3, 10 times or more to complete the burnishing procedure.

Maximum runout
(with it attached to the vehicle)

: 0.04 mm (0.0016 in) 

BRA0013D

Standard thickness

: 28.0 mm (1.102 in)

Repair limit thickness

: 26.0 mm (1.024 in) 

Thickness variation
 (measured at 8 positions)

: 0.015 mm (0.0006 in) 

SBR020B

REAR DISC BRAKE

BR-31

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REAR DISC BRAKE

PFP:44000

On-Vehicle Inspection

NFS000EI

PAD WEAR INSPECTION

●

Check the thickness of the pad from inspection hole of the cylin-
der body inspection hole. Use a scale for inspection if neces-
sary. 

Components

NFS000EJ

Standard thickness

: 8.5 mm (0.335 in)

Repair limit thickness

: 2.0 mm (0.079 in) 

BRA0010D

1.

Union bolt

2.

Brake hose

3.

Copper washer

4.

Cap

5.

Bleed valve

6.

Sliding pin bolt

7.

Cylinder body

8.

Piston seal

9.

Piston

10. Piston boot

11. Retaining ring

12. Inner shim cover

13. Inner shim

14. Inner pad

15. Pad retainer

16. Outer pad

17. Outer shim

*1

18. Outer shim cover or outer shim

*2

19. Slide pin boot

20. Bushing

21. Torque member mounting bolt

22. Washer

23. Torque member

24. Pad wear sensor

25. Inner pad (RH)

PFIA0747E

BR-32

REAR DISC BRAKE

Revision: 2006 August

2006 Murano

WARNING:

●

Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of air
borne particles or other materials.

CAUTION:

●

While removing cylinder body, never depress the brake pedal because the piston will pop out.

●

It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of the caliper assembly. In this case, suspend cylinder body with a wire so as not to
stretch brake hose.

●

Do not damage piston boot.

●

If any shim is subject to serious corrosion, replace it with a new one.

●

Always replace shims and shim covers as a set when replacing brake pads.

●

Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a
soft pedal occurs at very low mileage. Refer to 

BR-36, "BRAKE BURNISHING PROCEDURE"

 .

Removal and Installation of Brake Pad

NFS000EK

REMOVAL

1.

Remove tires from vehicle with power tool.

2.

Remove sliding pin bolt (one on top).

3.

Suspend cylinder body with a wire, and remove pads, pad retainers, shims from torque member.

INSTALLATION

1.

Apply PBC (Poly Butyl Cuprysil) grease or silicon-based grease to the rear of the pad and to both sides of
the shim, and attach the inner shim and shim cover to the inner pad, and the outer shim and outer shim
cover to the outer pad.

2.

Attach the pad retainer and pad to the torque member.

3.

Push the piston in so that the pad is attached and attach the cylinder body to the torque member.

NOTE:
Using a disc brake piston tool (commercial service tool), etc., makes it easier to push in the piston.

CAUTION:

By pushing in the piston, the brake fluid returns to the master cylinder reservoir tank. Watch the
level of the surface of the reservoir tank.

4.

Install the sliding pin bolt (one on top) and tighten to the specified torque.

5.

Check brake for drag.

6.

Install the tires to the vehicle.

Removal and Installation of Brake Caliper Assembly

NFS000EL

REMOVAL

1.

Remove tires from vehicle with power tool.

2.

Drain brake fluid. Refer to 

BR-10, "Drain and Refill"

 .

3.

Remove union bolts and torque member mounting bolts, and remove brake caliper assembly.

4.

Remove disc rotor.

INSTALLATION

CAUTION:

●

Refill with new brake fluid “DOT 3”.

●

Do not reuse drained brake fluid.

1.

Install disc rotor.

*1: Some model have not outer shim.

*2: For models with one shim (Refer to the latest parts information)

Refer to 

GI-10, "Components"

 and the followings for the symbols in the figure.

1: Apply rubber grease.

2: Apply PBC (Poly Butyl Cuprysil) grease or silicon-based grease.

3: Apply polyglycol ether based lubricant.

: Apply brake fluid.

REAR DISC BRAKE

BR-33

C

D

E

G

H

I

J

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L

M

A

B

BR

Revision: 2006 August

2006 Murano

2.

Install caliper assembly to the vehicle, and tighten bolts to the
specified torque. Refer to 

BR-31, "Components"

 .

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 bolts to
the specified torque. Refer to 

BR-31, "Components"

 .

CAUTION:

●

Do not reuse the copper washer for union bolts.

●

Attach brake hose to the brake hose mounting boss.

4.

Refill new brake fluid and bleed air. Refer to 

BR-11, "Bleeding Brake System"

 .

5.

Install the tires to the vehicle.

Disassembly and Assembly of Brake Caliper Assembly

NFS000EM

DISASSEMBLY

1.

Remove slide pin bolt, and then remove the pads, shims, shim covers, and pad retainers from torque
member and cylinder.

2.

Remove sliding pin boots 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 the piston.

5.

Using a flat-bladed screwdriver, remove piston seals from cylin-
der body.

CAUTION:

Be careful not to damage cylinder inner wall.

PFIA0413E

SBR028A

BRD0041D

SFIA0999E

BR-34

REAR DISC BRAKE

Revision: 2006 August

2006 Murano

CALIPER INSPECTION
Cylinder Body

CAUTION:

●

Use new brake fluid to clean. Do not use mineral oils such as gasoline or kerosene.

●

Check inside surface of cylinder for score, rust, wear, damage or presence of foreign materials. If
any of these conditions are observed, replace cylinder body.

●

Minor damage from rust or foreign materials may be eliminated by polishing surface with a fine
emery paper. Replace cylinder body if necessary.

Torque Member

Check for wear, cracks, and damage. If damage or deformation is present, replace the affected part.

Piston

CAUTION:

●

Piston sliding surface is plated, do not polish with emery paper even if rust of foreign materials
are stuck to sliding surface.

●

Check piston for score, rust, wear, damage or presence of foreign materials. Replace if any of
these conditions are observed.

Sliding Pin Bolt and Sliding Pin Boot

Check sliding pin bolt and sliding pin boot for wear, damage, and cracks. If damage or deformation is present,
replace the applicable part.

ASSEMBLY

CAUTION:

When assembling, use only rubber lubricant specified below.

1.

Apply polyglycol ether based lubricant to the piston seal, and
install them to the cylinder body.

2.

Apply brake fluid or rubber grease to the piston boot, place it on
the piston, and insert the piston boot cylinder-side lip into the
cylinder body groove.

CAUTION:

Do not reuse the piston boot.

SFIA2278E

SFIA2498E