Hyundai Kona: Brake System / Specifications

Specifications
Item
Specification
Master cylinder
Type
Single
Cylinder I.D.
22.22 mm
Piston stroke
45 ± 1 mm (1.77 ± 0.039 in)
Fluid level switch
Provided
Brake booster
Type
Single
Boosting ratio
10.0 : 1
Front disc brake
Type
Ventilated disc
Disc O.D.
15"
Ø 280 mm (11.02 in)
16"
Ø 305 mm (12.01 in)
17"
Ø 320 mm (12.60 in)
Disc thickness
23 mm (0.90 in)
25 mm (0.98 in)
28 mm (1.10 in)
Caliper piston
Single
Cylinder I.D.
Ø 57.15 mm (2.25 in)
Rear disc brake
Type
Solid disc
Disc O.D.
14"
Ø  262 mm (10.31in)
15"
Ø 284 mm (11.18in)
Disc thickness
10 mm (0.39 in)
10 mm (0.39 in)
Caliper piston
Single
Cylinder I.D.
Ø 34 mm (1.34 in)
Parking brake
Type
BIR (Ball-in-Ramp)
Actuation
Lever

Specification (VDC)
Part
Item
Standard value
Remark
HECU
System
4 Channel 4 Sensor (Solenoid)
Total control(ABS, TCS, EBD)
Type
Motor, valve relay intergrated type
ECU, TCU and CAN
Operating Voltage
8V - 16V

Operating Temperature
-40 ~ 110°C (-40 ~ 230°C)

Motor power
290 W

Active Wheel speed sensor (ABS)
Supply voltage
DC 4.5 - 20V

Output current low
5.9 - 8.4 mA
Typ. 7 mA
Output current high
11.8 - 16.8 mA
Typ. 14mA
Output range
1 - 2600 Hz

Tone wheel
Front : 46 teeth, Rear : 47 teeth

Air gap
0.4 - 1.0 mm

Steering Wheel Angle Sensor
Operating Voltage
8 - 16V

Current Consumption
Max. 150 mA

Output measurement range
-780 to +779.9 °

Operating Angular velocity
0 - 1016 °/sec


Service Standard
Items
Standard value
Brake pedal height
182 mm (6.93 in)
Brake pedal Full stroke
135 mm (5.31 in)
Stop lamp switch clearance
1.0 - 2.0 mm (0.04 - 0.08 in)
Brake pedal free play
2 - 4 mm (0.08 in - 0.16 in)
Front brake disc thickness
15"
23 mm (0.90 in)
16"
25 mm (0.98 in)
17"
28 mm (1.10 in)
Front brake disc service limit
21.4 mm(0.84 in)
23.0 mm(0.90 in)
26.4 mm(1.04 in)
Front brake disc pad thickness
11 mm (0.43 in) or 11.5mm (0.45 in)
Front brake disc pad service limit
2.0 mm (0.08 in)
Rear brake disc thickness
10 mm (0.39 in)
Rear brake disc service limit
2WD (14"/15")
4WD (15")
8.4 mm (0.33 in)
8.0 mm (0.31 in)
Rear brake disc pad thickness
9 mm (0.35 in)
Rear brake disc pad service limit
2.0 mm (0.08 in)

Tightening Torques
Items
N.m
kgf.m
lb-ft
Master cylinder to brake booster
9.8 - 15.6
1.0 - 1.6
7.2 - 11.6
Brake booster mounting nuts
16.7 - 25.5
1.7 - 2.6
12.3 - 18.8
Air bleeding screw
6.9 - 12.7
0.7 - 1.3
5.1 - 9.4
Master cylinder tube flare nut
18.6 - 22.5
1.9 - 2.3
13.7 - 16.6
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 knuckle
78.5 - 98.1
8.0 - 10.0
57.9 - 72.3
Rear caliper assembly to 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 member bracket bolts
16.7 - 25.5
1.7 - 2.6
12.3 - 18.8
Vacuum pump mounting bolt
19.6 - 29.4
2.0 - 3.0
14.5 - 21.7
Wheel speed sensor mounting bolt
7.84 - 11.7
0.8 - 1.2
5.78 - 8.67
HECU bracket mounting and nut
16.6 - 25.4
1.7 - 2.6
12.2 - 18.8
Front wheel speed sensor mounting bolt
7.84 - 11.7
0.8 - 1.2
5.78 - 8.67
Rear wheel speed sensor mounting bolt (Multi link)
6.86 - 10.7
0.7 - 1.1
5.06 - 7.95
HECU brake tube flare nut (Brake hose)
16.6 - 25.4
1.7 - 2.6
12.2 - 18.8
HECU brake tube flare nut (Master cylinder)
18.6 - 22.5
1.9 - 2.3
13.7 - 16.6
Parking brake lever assembly mounting bolt
19.6 - 29.4
2.0 - 3.0
14.4 - 21.6
Parking brake switch mounting screw
1.96 - 2.94
0.2 - 0.3
1.44 - 2.16

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 contacting surface
Heat resistance grease
As required

Brake System
...

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Special Service Tools Tool (Number and Name) Illustration Use 09581-2T100 Piston expander Sprea ...

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