Nissan Murano. Manual - part 210

BR-50

< REMOVAL AND INSTALLATION >

REAR DISC BRAKE

Since dust covering the rear brake has an affect on human body, the dust must be removed with a
dust collector. Never splatter the dust with an air blow gun.

CAUTION:

Never depress the brake pedal. Brake fluid may splash while removing the brake hose.

1.

Remove tires with power tool.

2.

Fix the disc rotor using wheel nuts.

3.

Drain brake fluid. Refer to 

BR-12, "Draining"

.

CAUTION:

Never spill or splash brake fluid on the disc rotor.

4.

Remove union bolt and copper washers then disconnect brake hose from caliper assembly.

5.

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

CAUTION:

Never drop brake pads and caliper assembly.

6.

Remove disc rotor.

CAUTION:

• Put matching marks on the wheel hub and bearing assembly and the disc rotor before removing

the disc rotor.

• Never drop disc rotor.

INSTALLATION

WARNING:

Since dust covering the rear brake has an affect on human body, the dust must be removed with a
dust collector. Never splatter the dust with an air blow gun.

CAUTION:

Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
1.

Install disc rotor.

CAUTION:

Align the matching marks put during removal when reusing the disc rotor.

2.

Install the brake caliper assembly to the vehicle and tighten the torque member mounting bolts to the
specified torque.

CAUTION:

Never spill or splash any grease and moisture on the brake caliper assembly mounting face,
threads, mounting bolts, and washers. Wipe out any grease and moisture.

3.

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

BR-24, "REAR : Exploded View"

.

CAUTION:

Never reuse copper washer.

4.

Refill with new brake fluid and perform the air bleeding. Refer to 

BR-13, "Bleeding Brake System"

.

CAUTION:

• Never reuse drained brake fluid.
• Never spill or splash brake fluid on the disc rotor.

5.

Check that no drag feel is present for the rear disc brake. Refer to 

BR-52, "BRAKE CALIPER ASSEMBLY

: Inspection"

.

BRAKE CALIPER ASSEMBLY : Disassembly and Assembly

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DISASSEMBLY

NOTE:
Never remove the torque member and pad retainers when disassembling and assembling the cylinder body.
1.

Remove the sliding pin bolts and remove the cylinder body from the torque member.

2.

Remove brake pads, shims and shim cover. Refer to 

BR-47, "BRAKE PAD : Exploded View"

.

3.

Remove sliding pin boots from torque member.

4.

Remove bushing from sliding pin bolt.

REAR DISC BRAKE

BR-51

< REMOVAL AND INSTALLATION >

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5.

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

CAUTION:

Never get fingers caught in the piston.

6.

Remove piston seal from cylinder body using suitable tool.

CAUTION:

Be careful not to damage a cylinder inner wall.

7.

Remove bleeder valve and cap.

ASSEMBLY

1.

Install bleeder valve and cap.

2.

Apply polyglycol ether based lubricant to piston seal (1), and
install to cylinder body.

CAUTION:

Never reuse piston seal.

3.

Apply rubber grease to piston boot (1). Cover the piston (2) end
with the piston boot, and then install cylinder side lip on the pis-
ton boot securely into the groove on cylinder body.

CAUTION:

Never reuse piston boot.

BRD0041D

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BR-52

< REMOVAL AND INSTALLATION >

REAR DISC BRAKE

4.

Apply brake fluid to piston (1). Push piston into cylinder body by
hand and push piston boot (2) 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.

5.

Apply rubber grease to bushing, install bushing to sliding pin
bolt.

6.

Apply rubber grease to the sliding pin bolts and the sliding pin
boots, install sliding pin boot to torque member.

7.

Install the cylinder body to the torque member and tighten the
sliding pin bolts to the specified torque.

BRAKE CALIPER ASSEMBLY : Inspection

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INSPECTION AFTER DISASSEMBLY

Cylinder Body

Check the inner wall of the cylinder for rust, wear, cracks or damage. Replace the cylinder if any abnormal
condition is detected.

CAUTION:

Always clean with new brake fluid. Never clean with mineral oil such as gasoline and light oil.

Torque Member

Check the torque member for rust, wear, cracks or damage. Replace the member if any abnormal condition is
detected.

Piston

Check the piston for rust, wear, cracks or damage. Replace the piston if any abnormal condition is detected.

CAUTION:

A piston sliding surface is plated. Never polish with sandpaper.

Sliding Pin Bolt and Sliding Pin Boot

Check the sliding pin bolts and sliding pin boots for rust, wear, cracks or damage. Replace the parts if any
abnormal condition is detected.

INSPECTION AFTER INSTALLATION

1.

Check a drag of rear disc brake. If any drag is found, follow the procedure described below.

2.

Remove brake pads.

3.

Press the piston.

CAUTION:

• Never damage the piston boot.
• When replacing a pad with new one, check a brake fluid level in the reservoir tank because brake

fluid returns to master cylinder reservoir tank when pressing piston in.

NOTE:
Use a disc brake piston tool to easily press piston.

4.

Install brake pads.

5.

Depress the brake pedal several times.

6.

Check a drag of rear disc brake again. If any drag is found, disassemble the cylinder body. Refer to 

BR-

50, "BRAKE CALIPER ASSEMBLY : Disassembly and Assembly"

.

7.

Burnish contact surfaces after refinishing or replacing disc rotors, or if a soft pedal occurs at very low mile-
age. Refer to 

BR-18, "DISC ROTOR : Inspection and Adjustment"

.

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SERVICE DATA AND SPECIFICATIONS (SDS)

BR-53

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

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FRONT CALIPER 1 PISTON TYPE AND REAR CALIPER 1 PISTON TYPE

Unit: mm (in)

FRONT CALIPER 2 PISTON TYPE AND REAR CALIPER 1 PISTON TYPE

Unit: mm (in)

Brake Pedal

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Unit: mm (in)

Front brake

Cylinder bore diameter

63.6 (2.504)

Pad length 

×

 width 

×

 thickness

111.0 

×

 63.5 

×

 9.5 (4.37 

×

 2.500 

×

 0.374)

Rotor outer diameter 

×

 thickness

φ

320 

×

 28.0 (12.60 

×

 1.102)

Rear brake 

Cylinder bore diameter

42.86 (1.6874)

Pad length 

×

 width 

×

 thickness

83.0 

×

 33.0 

×

 8.5 (3.268 

×

 1.299 

×

 0.335)

Rotor outer diameter 

×

 thickness

φ

308 

×

 16.0 (12.13 

×

 0.630)

Master cylinder

Cylinder bore diameter

25.4 (1.0)

Control valve

Valve type

Electric brake force distribution

Brake booster

Diaphragm diameter

Primary

 228.5 (9.00)

Secondary

203 (7.99)

Recommended brake fluid

Refer to 

MA-15, "FOR NORTH AMERICA : Fluids and Lubri-

cants"

 (for North America), 

MA-16, "FOR MEXICO : Fluids 

and Lubricants"

 (for Mexico).

Front brake

Cylinder bore diameter

45.0 (1.772) 

×

 2

Pad length 

×

 width 

×

 thickness

130.0 

×

 50.0 

×

 11.0 (5.12 

×

 1.969 

×

 0.433)

Rotor outer diameter 

×

 thickness

φ

320 

×

 28.0 (12.60 

×

 1.102)

Rear brake 

Cylinder bore diameter

42.86 (1.6874)

Pad length 

×

 width 

×

 thickness

83.0 

×

 33.0 

×

 8.5 (3.268 

×

 1.299 

×

 0.335)

Rotor outer diameter 

×

 thickness

φ

308 

×

 16.0 (12.13 

×

 0.630)

Master cylinder

Cylinder bore diameter

25.4 (1.0)

Control valve

Valve type

Electric brake force distribution

Brake booster

Diaphragm diameter

Primary

 228.5 (9.00)

Secondary

203 (7.99)

Recommended brake fluid

Refer to 

MA-15, "FOR NORTH AMERICA : Fluids and Lubri-

cants"

 (for North America), 

MA-16, "FOR MEXICO : Fluids 

and Lubricants"

 (for Mexico).

Item

Standard

Brake pedal height 

197.1 – 207.1 (7.76 – 8.15)

Clearance between stopper rubber and stop lamp switch and ASCD brake switch threaded end 

0.20 – 1.96 (0.0079 – 0.0772)

Brake pedal play

3.0 – 11.0 (0.118 – 0.433)

Depressed brake pedal height
[Depressing 490 N (50 kg, 110 lb) while turning the engine ON]

128 (5.04) or more