Hyundai Santa Fe: Brake System / Specifications

Hyundai Santa Fe (TM) 2019-2024 Service Manual / Brake System / Specifications

Specifications
Item
Specification
Master cylinder
 Type
 Tandem
I.D. mm (in)
 22.22 mm (0.87 in)
Piston stroke mm (in)
 45 mm (1.77 in)
Brake booster
 Type
 11" Tie-rod
Boosting ratio
 1899-12-31T09:01:00.000
Front disc brake
 Type
 Ventilated disc
Disc O.D
 325 mm (12.80 in)
Disc thickness
 30 mm (1.18 in)
Cylinder type
 Single piston
Cylinder I.D.
 Ø 63.5 mm (2.50 in)
Rear disc brake (16 inch)
 Type
 Solid disc
Disc O.D
 305 mm (12.0 in)
Disc thickness
 11 mm (0.43 in)
Cylinder type
 Single piston
Cylinder I.D.
 Ø43.00 mm (1.69 in)
Rear disc brake (17 inch)
 Type
 Ventilated disc
Disc O.D
 325 mm (12.80 in)
Disc thickness
 20 mm (0.78 in)
Cylinder type
 Single piston
Cylinder I.D.
 Ø43.00 mm (1.69 in)
Parking brake
 Type
 Electronic parking brake
HECU
 System
 4 Channel 4 Sensor control system (Total control ABS, TCS, EBD, ESP)
Type
 Motor, valve relay intergrated type (ECU, TCU and CAN)
Operating Voltage
 8 ~ 16V
Operating Temperature
 -40°C ~ 110°C
Motor power
 Normal / integrated ESC / ESCi : 310W
integrated+ ESCi : 370W
Active Wheel speed sensor
Supply voltage
 DC 4.25 ~ 20V
Output current (low)
 5.95 ~ 8.05 mA(Type, 7 mA)
Output current (high)
 11.9 ~ 16.1 mA(Type, 14 mA)
Output range
 0.03 ~ 3,000 Hz
Tone wheel
 Front : 52 teeth, Rear : 52 teeth
Air gap
 0.4 ~ 1.5 mm
Steering Wheel Angle Sensor
 Operating Voltage
 8 ~ 16V
Current Consumption
 Max. 150 mA
Output measurement range
 -780 ~ + 779.9°
Operating Angular velocity
 0 ~ 1016°/sec

Service Standard
Items
Standard value
Brake pedal height
 135 mm (5.31 in)
Brake pedal Full stroke
 176 mm (6.93 in)
Stop lamp switch clearance
 1 - 2 mm (0.04 in - 0.08 in)
Brake pedal free play
 2 - 4 mm (0.08 in - 0.16 in)
Front brake disc pad thickness
 11 mm (0.43 in)
Front brake disc pad service limit
 2 mm (0.07 in)
Front brake disc thickness
 30 mm (1.18 in)
Front brake disc service limit
 28 mm (1.10 in)
Rear brake disc pad thickness (16 inch)
 10 mm (0.31 in)
Rear brake disc pad service limit (16 inch)
 2 mm (0.07 in)
Rear brake disc pad thickness (17 inch)
 10 mm (0.31 in)
Rear brake disc pad service limit (17 inch)
 2 mm (0.07 in)
Rear brake disc thickness (16 inch)
 11 mm (0.43 in)
Rear brake disc service limit (16 inch)
 9 mm (0.35 in)
Rear brake disc thickness (17 inch)
 20 mm (0.78 in)
Rear brake disc service limit (17 inch)
 18 mm (0.70 in)

Tightening Torques
Items
N.m
kgf.m
lb-ft
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
Air bleeding screw
 13.7 - 19.6
 1.4 - 2.0
 10.1 - 14.5
Brake tube flare nut, brake hose
 13.7 - 16.7
 1.4 - 1.7
 10.1 - 12.3
Front caliper guide rod bolts
 37.3 - 41.2
 3.8 - 4.2
 27.5 - 30.4
Rear caliper guide rod bolts
 37.3 - 41.2
 3.8 - 4.2
 27.5 - 30.4
Front caliper assembly mounting bolt
 98.1 - 117.7
 10.0 - 12.0
 72.3 - 86.8
Rear caliper assembly mounting bolt
 98.1 - 117.7
 10.0 - 12.0
 72.3 - 86.8
Brake hose to caliper
 24.5 - 29.4
 2.5 - 3.0
 18.1 - 21.7
Brake pedal member bracket bolt
 16.7 - 25.5
 1.7 - 2.6
 12.3 - 18.8
Wheel speed sensor mounting bolt
 8.8 - 13.7
 0.9 - 1.4
 6.5 - 10.1
HECU bracket mounting nut
 16.7 - 25.5
 1.7 - 2.6
 12.3 - 18.8

Lubricants
Items
Recommended
Quantity
Brake fluid
 DOT 4
 As required
Brake pedal bushing and bolt
 Chassis grease
 As required
Parking brake shoe and backing plate contacting surface
 Heat resistance grease
 As required

    Brake System

    ..

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