Brake System

Specifications

~4min read

Specifications

Item Specification
Master Cylinder Type Fixed
Cylinder Inner Diameter CBS: Ø 22.22 mm (0.875 in)
ABS/ESP: Ø 23.8 mm (0.937 in)
Piston Stroke 45 ± 1 mm (1.77 ± 0.039 in.)
Fluid Level Sensor Provided
Brake booster Size 10.5-inch Single
Booster Ratio 9 : 1
Front Disc Brake Type Ventilated Disc
Rear Disc Ø 300 mm (Ø 11.81 in)
Disc Thickness 28 mm (1.10 in.)
Caliper Piston Single
Cylinder Inner Diameter Ø 60.0 mm (Ø 2.36 in)
Rear Disc Brake Type Solid Disc
Rear Disc Ø 284 mm (11.18 in.)
Disc Thickness 10 mm (0.39 in.)
Caliper Piston Single
Cylinder Inner Diameter Ø 38 mm (1.49 in)
Parking Brake (Non-EPB) Type BIR (Ball in Ramp)
Activation Lever

Specifications (ABS)
Part Item Standard Value NOTE
HECU System 4-Channel 4-Sensor (Solenoid)
Type Motor, Integrated Valve Relay Type
Operating Voltage 10 ~ 16 V
Operating Temperature -40 ~ 120 °C
Engine Power 270 W
Active Wheel Speed Sensor (ABS) Supply Voltage 4.5 ~ 20 V DC
Low Output Current 5.9 ~ 8.4 mA
High Output Current 11.8 ~ 16.8 mA
Output range 1 ~ 2500 Hz
Tone wheel Front: 48 teeth, Rear: 47 teeth
Air gap 0.4 ~ 1.5 mm

Specifications (ESP)
Part Item Standard Value NOTE
HECU System 4-Channel 4-Sensor (Solenoid) Full control
(ABS, EBD, TCS, ESP)
Type Motor, Integrated Valve Relay Type
Operating Voltage 10 ~ 16 V
Operating Temperature -40 ~ 120 °C
Engine Power 270 W
Active wheel speed sensor Supply Voltage 4.5 ~ 20 V DC
Low Output Current 5.9 ~ 8.4 mA
High Output Current 11.8 ~ 16.8 mA
Output range 1 ~ 2500 Hz
Tone wheel Front: 48 teeth, Rear: 47 teeth
Air gap 0.4 ~ 1.5 mm
Yaw Rate and Acceleration Sensor
(TYPE MAY VARY)

Operating Voltage 10 ~ 16 V
Current Consumption Max. 140 mA
Yaw Rate Sensor Measuring Range ± 75 °/sec
Lateral / Longitudinal G Sensor Measuring Range ± 14.715 m/s²

Service Standard
Items Standard Value
Brake pedal height 183 mm (7.20 in)
Brake pedal full travel 135 mm (5.31 in.)
Stop light switch clearance 1.0 ~ 2.0 mm (0.04 ~ 0.08 in.)
Front brake disc thickness 28 mm (1.10 in.)
Front brake pad thickness 11 mm (0.43 in.)
Rear brake disc thickness 10 mm (0.39 in.)
Rear brake pad thickness 10 mm (0.39 in.)

Tightening Torque
Items N·m kgf·m lb-ft
Hub Nut 88,3 ~ 107,9 9,0 ~ 11,0 65,1 ~ 79,6
Master cylinder to brake booster 12,7 ~ 16,7 1,3 ~ 1,7 9,4 ~ 12,3
Brake booster mounting nuts 16,7 ~ 25,5 1,7 ~ 2,6 12,3 ~ 18,8
Bleeder screw 6,9 ~ 12,7 0,7 ~ 1,3 5,1 ~ 9,4
Brake tube flare nuts 12,7 ~ 16,7 1,3 ~ 1,7 9,4 ~ 12,3
Front caliper guide rod bolts 21,6 ~ 31,4 2,2 ~ 3,2 15,9 ~ 23,1
Rear caliper guide rod bolts 21,6 ~ 31,4 2,2 ~ 3,2 15,9 ~ 23,1
Front caliper assembly to steering knuckle 78,5 ~ 98,1 8,0 ~ 10,0 57,9 ~ 72,3
Rear caliper assembly to steering knuckle 63,7 ~ 73,5 6,5 ~ 7,5 47,0 ~ 54,2
Brake hose to caliper 24,5 ~ 29,4 2,5 ~ 3,0 18,1 ~ 21,7
Brake pedal bracket bolts 16,7 ~ 25,5 1,7 ~ 2,6 12,3 ~ 18,8
Brake Pedal Shaft Nut 24,5 ~ 34,3 2,5 ~ 3,5 18,1 ~ 25,3
Wheel speed sensor mounting bolt 6,9 ~ 10,7 0,7 ~ 1,1 5,1 ~ 8,0
HECU Bracket Mounting Nuts 16,7 ~ 25,5 1,7 ~ 2,6 12,3 ~ 18,8
Yaw Rate and Acceleration Sensor Mounting Nuts 7,8 ~ 11,8 0,8 ~ 1,2 5,8 ~ 8,7

Lubricants
Items Recommended Quantity
Brake fluid DOT 3 or DOT 4 As required
Brake pedal bushing and bolt Chassis grease As required
Parking brake shoe and backing plate contact surface Heat-resistant grease As required
Front Caliper Guide Rod and Boot KL-64Y 0.6 ~ 1.1 g
Rear Caliper Guide Rod and Boot NOT EPB KL-64Y 0.5 ~ 1.0 g
EPB 0.8 ~ 2.0 g

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