Nissan X-Trail 32. Manual - part 118

BR-66

< REMOVAL AND INSTALLATION >

[LHD]

REAR DISC BRAKE

3.

Apply rubber grease to mating faces 

 between sliding pins 

and sliding pin boots 

, and install sliding pins and sliding pin

boots to torque member 

.

4.

Install the cylinder body to tighten cylinder body mounting bolts to the specified torque. Refer to 

BR-60,

"BRAKE PAD : Exploded View"

.

BRAKE CALIPER ASSEMBLY : Inspection and Adjustment

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INSPECTION AFTER DISASSEMBLY

Check the following items and replace if necessary.

Cylinder Body

Check the cylinder inner wall for rust, wear, cracks or damage.

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.

Sliding Pin, Sliding Pin Boot and Bushing

Check the sliding pins, sliding pin boots and bushing for rust, wear, cracks or damage.

INSPECTION AFTER INSTALLATION

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

1.

Remove brake pads. Refer to 

BR-60, "BRAKE PAD : Removal and Installation"

.

2.

Press the pistons. Refer to 

BR-60, "BRAKE PAD : Removal and Installation"

.

3.

Install brake pads. Refer to 

BR-60, "BRAKE PAD : Removal and Installation"

.

4.

Depress the brake pedal several times.

5.

Check a drag of rear disc brake again. When any drag is found, disassemble the cylinder body and
replace if necessary. Refer to 

BR-65, "BRAKE CALIPER ASSEMBLY : Disassembly and Assembly"

.

• Burnish contact surfaces brake pads and disc rotor after refinishing or replacing disc rotor, or if a soft pedal

occurs at very low mileage. Refer to 

BR-19, "BRAKE PAD : Inspection and Adjustment"

.

JPFIA0837ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

BR-67

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[LHD]

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

INFOID:0000000010838545

Unit: mm (in)

Brake Pedal

INFOID:0000000010838546

Unit: mm (in)

Brake Booster

INFOID:0000000010838547

Unit: mm (in)

Front Disc Brake

INFOID:0000000010838548

Unit: mm (in)

Rear Disc Brake

INFOID:0000000010838549

Unit: mm (in)

Front brake

Caliper type

1 piston type

2 piston type

Cylinder bore diameter

60.33 (2.3752)

44.45 

×

 2 (1.7500 

×

 2)

Pad length 

×

 width 

×

 thickness

123.6 

×

 47.5 

×

 10.5 (4.87 

×

 1.870 

×

 

0.413)

133.6 

×

 48.5 

×

 10.0 (5.26 

×

 1.909 

×

 

0.39)

Rotor outer diameter 

×

 thickness

296 

×

 26.0 (11.65 

×

 1.024)

320 

×

 28.0 (12.60 

×

 1.102)

Rear brake 

Cylinder bore diameter

38.2 (1.504)

Pad length 

×

 width 

×

 thickness

82.9 

×

 39.8 

×

 9.0 (3.263 

×

 1.567 

×

 0.354)

Rotor outer diameter 

×

 thickness

292 

×

 16.0 (11.50 

×

 0.630)

Master cylinder

Cylinder bore diameter

23.81 (0.9374)

Control valve

Valve type

Electric brake force distribution

Brake booster

Diaphragm diameter

275 (10.83)

Recommended brake fluid

Refer to 

MA-23, "Fluids and Lubricants"

.

Item

Standard

Brake pedal height

175.9 – 185.9 (6.93 – 7.32)

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

75.0 (2.95) or more

Clearance between stop lamp switch and brake pedal position switch (with ASCD) threaded 
end and the brake pedal lever

0.20 – 1.96 (0.0079 – 0.0772)

Brake pedal play

3 – 11 (0.12 – 0.43)

Item

Standard

Input rod length

158.95 – 160.45 (6.26 –6.32)

Item

Limit

Brake caliper type

1 piston type

2 piston type

Brake pad

Wear thickness

2.0 (0.079)

2.0 (0.079)

Disc rotor

Wear thickness

24.0 (0.945)

26.0 (1.0236)

Thickness variation (measured at 8 positions)

0.020 (0.0008)

0.020 (0.0008)

Runout (with it attached to the vehicle)

0.035 (0.0014)

0.035 (0.0014)

BR-68

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[LHD]

SERVICE DATA AND SPECIFICATIONS (SDS)

Item

Limit

Brake pad

Wear thickness

2.0 (0.079)

Disc rotor

Wear thickness

14.0 (0.551)

Thickness variation (measured at 8 positions)

0.020 (0.0008)

Runout (with it attached to the vehicle)

0.070 (0.0028)

PRECAUTIONS

BR-69

< PRECAUTION >

[RHD]

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000011022310

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. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000011022309

CAUTION:

Comply with the following cautions to prevent any error and malfunction.
• Before removing and installing any control units, first turn the ignition power source and accessory

power source to the OFF, then disconnect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect

both battery cables.

• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing

work. If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.

OPERATION PROCEDURE

1.

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

2.

Open driver door.

3.

Turn the ignition switch to the ON position.
(At this time, the steering lock will be released.)

4.

Turn the ignition switch to OFF position with driver door open.

5.

Wait for 3 minutes or longer with driver door open.
NOTE:
• Do not close driver door because the steering wheel locks when driver door is closed.