Brake System
Specifications
In this manual: Brake System
~4min read
Specifications
| Item | Specification | |||
| Master Cylinder | Type | Single | ||
| Cylinder Inner Diameter | 22.22 mm | |||
| Piston Stroke | 45 ± 1 mm (1.77 ± 0.039 in.) | |||
| Fluid Level Sensor | Provided | |||
| Brake booster | Type | Single | ||
| Booster Ratio | 10,0 : 1 | |||
| Front Disc Brake | Type | Ventilated Disc | ||
| Rear Disc | 15 in. Ø 280 mm (11.02 in.) |
16 in. Ø 305 mm (12.01 in.) |
17 in. 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 Inner Diameter | Ø 57.15 mm (2.25 in.) | |||
| Rear Disc Brake | Type | Solid Disc | ||
| Rear Disc | 14 in. Ø 262 mm (10.31 in.) |
15 in. Ø 284 mm (11.18 in.) |
||
| Disc Thickness | 10 mm (0.39 in.) | 10 mm (0.39 in.) | ||
| Caliper Piston | Single | |||
| Cylinder Inner Diameter | Ø 34 mm (1.34 in.) | |||
| Parking Brake | Type | BIR (Ball in Ramp) | ||
| Activation | Lever | |||
Specification (V DC)
| Part | Item | Standard Value | NOTE |
| HECU | System | 4-Channel 4-Sensor (Solenoid) | Full Control (ABS, TCS, EBD) |
| Type | Motor, Integrated Valve Relay Type | ECU, TCU and CAN | |
| Operating Voltage | 8 V - 16 V | ||
| Operating Temperature | -40 ~ 110°C (-40 ~ 230°F) | ||
| Engine Power | 290 W | ||
| Active Wheel Speed Sensor (ABS) | Supply Voltage | 4.5–20 V DC | |
| Low Output Current | 5.9–8.4 mA | Typ. 7 mA | |
| High Output Current | 11.8–16.8 mA | Typ. 14 mA | |
| 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 - 16 V | |
| Current Consumption | Max. 150 mA | ||
| Output Measurement Range | -780 to +779.9° | ||
| Operating Angular Rate | 0 - 1016 °/sec |
Service Standard
| Items | Standard Value | ||
| Brake pedal height | 182 mm (6.93 in.) | ||
| Brake pedal full travel | 135 mm (5.31 in.) | ||
| Stop light switch clearance | 1.0–2.0 mm (0.04–0.08 in.) | ||
| Brake pedal free play | 2–4 mm (0.08–0.16 in.) | ||
| Front brake disc thickness | 15 in. 23 mm (0.90 in.) |
16 in. 25 mm (0.98 in.) |
17 in. 28 mm (1.10 in.) |
| Front brake disc minimum thickness | 21.4 mm (0.84 in.) | 23.0 mm (0.90 in.) | 26.4 mm (1.04 in.) |
| Front brake pad thickness | 11 mm (0.43 in.) or 11.5 mm (0.45 in.) | ||
| Front brake pad wear limit | 2.0 mm (0.08 in.) | ||
| Rear brake disc thickness | 10 mm (0.39 in.) | ||
| Rear brake disc minimum thickness | 2WD (14 in./15 in.) | AWD (15 in.) | |
| 8.4 mm (0.33 in.) | 8.0 mm (0.31 in.) | ||
| Rear brake pad thickness | 9 mm (0.35 in.) | ||
| Rear brake pad wear limit | 2.0 mm (0.08 in.) | ||
Tightening torque
| 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 |
| Bleeder screw | 6,9 - 12,7 | 0,7 - 1,3 | 5,1 - 9,4 |
| Brake 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 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 |
| 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 contact surface | Heat-resistant grease | As required |
Test yourself
A quick Hyundai Kona quiz: every answer comes with an explanation and a link to the manual page.
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