Nissan X-Trail 32. Manual - part 105

BR-14

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BRAKE FLUID

• 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. For brake component parts,
never wash them with water.

1.

Check that there is no foreign material in the reservoir tank, and
refill with new brake fluid.

CAUTION:

• Never reuse drained brake fluid.
• Never allow foreign matter (e.g. dust) and oils other than

brake fluid to enter the reservoir tank.

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 new 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-14, "Bleeding Brake Sys-

tem"

.

Bleeding Brake System

INFOID:0000000010838500

CAUTION:

• Turn the ignition switch OFF and disconnect the ABS actuator and electric unit (control unit) har-

ness connector or the battery negative terminal before performing the work.

• Monitor the fluid level in the reservoir tank while performing the air bleeding 
• 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. For brake component parts,
never wash them with water.

• Never allow foreign matter (e.r.dust) and oil other than brake fluid to enter the reservoir tank.

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 3 and 4 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-50, "BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Exploded View"

.

- 2 piston type: Refer to 

BR-55, "BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) : Exploded View"

.

• Rear disc brake: Refer to 

BR-62, "BRAKE CALIPER ASSEMBLY : Exploded View"

.

6.

Perform steps 2 to 6. Occasionally fill with the brake fluid in order to keep it in the reservoir tank at least
half of MAX line. Bleed air in the following order: rear right brake 

→

 front left brake 

→

 rear left brake 

→

and front right brake in order.

7.

Check that the fluid level in the reservoir tank is within the specified range after air bleeding. Refer to 

BR-

13, "Inspection"

.

8.

Check each item of brake pedal. Adjust it if the measurement value is not the standard. Refer to 

BR-11,

"Inspection and Adjustment"

.

PFIA0403J

BRAKE MASTER CYLINDER

BR-15

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BRAKE MASTER CYLINDER

Inspection

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FLUID LEAK

Check for brake fluid leakage from the master cylinder mounting face, reservoir tank mounting face and brake
tube connections.

BR-16

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BRAKE BOOSTER

BRAKE BOOSTER

Inspection

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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.

AIR TIGHT

1.

Run the engine at idle for 1 minute to apply vacuum to the brake booster, and stop the engine. 

2.

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 each time the brake pedal is depressed when performing this operation.

3.

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 sec-
onds or more.

FRONT DISC BRAKE

BR-17

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FRONT DISC BRAKE

BRAKE PAD

BRAKE PAD : Inspection and Adjustment

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INSPECTION

Check brake pad wear thickness from an inspection hole on cylinder
body. Check using a scale if necessary. 

ADJUSTMENT

Burnish contact surfaces between disc rotor and brake pads according to the following procedure after refin-
ishing or replacing brake pads, or if a soft pedal occurs at very low mileage.

CAUTION:

• 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

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INSPECTION

Appearance

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace it if necessary. 
• For 2WD, refer to 

FAX-11, "Removal and Installation"

.

• For 4WD, refer to 

FAX-72, "Removal and Installation"

.

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. 
• For 2WD, refer to 

FAX-16, "Inspection"

.

• For 4WD, refer to 

FAX-77, "Inspection"

.

3.

Inspect the runout with a dial indicator to measure at 10 mm
(0.39 in) inside the disc edge.

4.

Find the installation position that has a minimum runout by shift-
ing 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. 

CAUTION:

Wear thickness

: Refer to 

BR-67, "Front Disc Brake"

.

BRA0010D

Runout (with it attached 
to the vehicle)

: Refer to 

BR-67, "Front Disc 

Brake"

.

BRA0013D