Nissan Sentra B18 (2020-2025) Service Manual: Removal and Installation
CAUTION:
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Do not 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.
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Do not reuse drained brake fluid.
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.
REMOVAL
Remove battery tray. Refer to Removal and Installation.
Disconnect the harness connector from the brake fluid level switch.
Loosen the brake tube flare nuts using a flare nut wrench. Separate the brake tubes from the master cylinder. Refer to Exploded View.
CAUTION:
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Do not scratch the flare nuts or the brake tubes.
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Do not deform or bend the brake tubes.
If equipped with a manual transmission, remove the reservoir hose for the clutch master cylinder. Refer to Exploded View.
Remove the nuts and the master cylinder assembly. Refer to Exploded View.
CAUTION:
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Do not depress the brake pedal after the master cylinder is removed.
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The piston is exposed. Do not damage the piston when removing the master cylinder.
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The piston may be damaged if separated from the master cylinder. Do not hold the piston. Hold the master cylinder body.
Remove the O-ring.
CAUTION:
Do not reuse the O-ring.
If necessary, remove the brake fluid level switch.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
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Do not reuse the master cylinder nuts.
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Do not reuse the O-ring.
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Make sure the brake hoses and tubes are not twisted or bent.
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Make sure the flare nuts and the brake tubes are not scratched.
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Make sure no dirt and dust are present on the piston before installation. Clean the piston with new brake fluid if necessary.
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Apply PBC (Poly Butyl Cuprysil) grease or silicone grease to the O-ring.
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Temporarily tighten the brake tube flare nut to the master cylinder by hand. Then tighten it to the specified torque using a flare nut crowfoot and a torque wrench. Refer to Exploded View
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After installation, bleed air from the brake system. Refer to Bleeding Brake System.
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Perform the inspection after installation. Refer to Inspection.
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Perform "ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL". Refer to Special Repair Requirement.
Exploded View
Exploded View
1.
Reservoir cap
2.
...
Brake Booster
...
Other materials:
Service data and specifications (SDS)
Steering Wheel
Steering Angle
Steering Column
STEERING COLUMN LENGTH
TILT MECHANISM OPERATING RANGE
Power Steering Gear
STEERING OUTER SOCKET AND INNER SOCKET
RACK STROKE
...
Driver Side
Component Function Check
Component Function
Check
CHECK FUNCTION
CONSULT
Ignition switch ON.
Select ″CDL LOCK SW″, ″CDL UNLOCK SW″ in ″Data
Monitor ...
Precautions
Precaution for Supplemental Restraint System (srs) "air Bag" and "seat Belt Pre-Tensioner"
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as
“AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along wit ...
