Nissan Sentra B18 (2020-2025) Service Manual / Brakes / Brake System :: Service Data and Specifications (sds). Service Data and Specifications (sds)

Nissan Sentra B18 (2020-2025) Service Manual: Brake System :: Service Data and Specifications (sds). Service Data and Specifications (sds)

Service Data and Specifications (sds). General Specifications

General Specifications

Unit: mm (in)

Master cylinder	Cylinder bore diameter	25.4 (1)
Brake booster	Diaphragm diameter	279.4 (11)
Control valve	Valve type	Electric brake force distribution
Recommended brake fluid		Refer to Fluids and Lubricants.

Brake Pedal

Unit: mm (in)


Item		Standard
Brake pedal height (H) from lower dash (3)		167.9 – 177.9 (6.61 – 7.00)
Clearance (B) between brake pedal bracket (A), stop lamp switch (2) and brake pedal position switch (1) contact ends		0.74 – 1.96 (0.0291 – 0.0772)
Brake pedal full stroke (S)		135.7 (5.34)

Brake Booster

Unit: mm (in)


Input rod (A) length (B)	164 ± 0.75 (6.46 ± 0.03)


Check valve (3) angle (A) on the brake booster (1)	35° ± 5°
Vacuum sensor (2) angle (B) on the brake booster	15° ± 5°

Front Disc Brake

Unit: mm (in)

Item		Limit
Cylinder	Cylinder bore diameter	53.96 (2.124)
Brake pad	Pad length × width × thickness (new)	112 × 51.5 × 10 (4.409 × 2.028 × 0.394)
Brake pad	Wear thickness	2.0 (0.080)
Disc brake rotor	Rotor outer diameter × thickness (new)	280 × 24.0 (11.024 × 0.945)
	Wear thickness	22.0 (0.866)
	Thickness variation (measured at 8 positions)*	0.004 (0.0002)
	Runout (with it attached to the Nissan Sentra vehicle)	0.040 (0.002)

*To check if rotor imbalance, rotor runout or rotor deformation exists.

Rear Drum Brake

Unit: mm (in)

Item		Limit
Cylinder	Cylinder bore diameter	19.05 (0.75)
Brake shoe	Lining length × width × thickness (new)	183.2 × 40 × 4.9 (7.213 × 1.575 × 0.193)
Brake shoe	Wear thickness	1 (0.039)
Brake drum	Drum diameter (new)	228.6 (9.00)
Brake drum	Maximum inner diameter	230.6 (9.079)

Rear Disc Brake

Unit: mm (in)

Item		Limit
Cylinder	Cylinder bore diameter	36 (1.417)
Brake pad	Pad length × width × thickness (new)	39.9 × 79.8 × 9 (1.571 × 3.142 × 0.354)
Brake pad	Wear thickness	2.0 (0.079)
Disc brake rotor	Rotor outer diameter × thickness (new)	260 × 8.0 (10.236 × 0.315)
	Wear thickness	7.0 (0.276)
	Thickness variation (measured at 8 positions)*	0.007 (0.0003)
	Runout (with it attached to the Nissan Sentra vehicle)	0.1 (0.0039)

*To check if rotor imbalance, rotor runout or rotor deformation exists.

 Rear Disc Brake Rotor

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