Nissan Versa Note. Manual — part 101
BRAKE MASTER CYLINDER
BR-13
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BRAKE MASTER CYLINDER
Inspection
INFOID:0000000009364824
FLUID LEAKS
Check for brake fluid leaks from the master cylinder, reservoir tank, and brake tube connections.
BR-14
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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.
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
1. Run the engine at idle 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 each time the brake pedal is depressed when performing this operation.
2. 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-15
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FRONT DISC BRAKE
BRAKE PAD
BRAKE PAD : Inspection
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INSPECTION
Check brake pad wear thickness from an inspection hole on cylinder
body. Check using a scale if necessary.
BRAKE PAD : Brake Burnishing
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BRAKE BURNISHING
Burnish contact surfaces between disc brake rotor and brake pads according to the following procedure after
refinishing disc brake rotors, replacing disc brake rotors, replacing brake pads, or if a soft pedal occurs at very
low mileage:
CAUTION:
• Be careful of vehicle speed because the brake pedal does not operate firmly/securely until pads and
disc brake rotor are securely seated.
• 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 pedal for a few minutes to cool the brakes.
4. Repeat steps 1 to 3 until pad and disc brake rotor are securely seated.
DISC ROTOR
DISC ROTOR : Inspection
INFOID:0000000009364827
INSPECTION
Appearance
Check surface of disc brake rotor for uneven wear, cracks, and serious damage. Replace it if necessary. Refer
to
Runout
1. Secure the disc brake rotor to the wheel hub with wheel nuts (2
points at least).
2. Check the wheel bearing axial end play before the 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 brake rotor-to-wheel hub installation position by one
hole at a time if the runout exceeds the limit value.
5. Refinish or replace the disc brake rotor if the runout is outside the limit even after performing the above
operation.
Wear thickness
: Refer to
BRA0010D
Runout
: Refer to
BRA0013D
BR-16
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FRONT DISC BRAKE
CAUTION:
If the thickness is less than wear thickness + 0.3 mm (0.012 in), replace the disc brake rotor. Refer
BR-36, "BRAKE CALIPER ASSEMBLY : Removal and Installation"
Thickness
Check the thickness of the disc brake rotor using a micrometer.
Replace the disc brake rotor if the thickness is below the wear limit.
Wear thickness
: Refer to
Wear thickness
: Refer to
.
Thickness variation (mea-
sured at 8 positions)
: Refer to
.
SBR020B
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