Hyundai i-30: Brake System / Specifications
Hyundai i30 (PD) 2018-2024 Service Manual / Brake System / Specifications
| Specifications |
|
Item |
Specification |
|
|
Master cylinder |
Type |
Tandem |
|
Cylinder I.D. |
22.22 mm |
|
|
Piston stroke |
45 ± 1 mm (1.77 ± 0.039 in) |
|
|
Fluid level switch |
Provided |
|
|
Brake booster |
Type |
10"/11" Single |
|
Boosting ratio |
8.0 : 1 |
|
|
Front disc brake |
Type |
Ventilated disc |
|
Disc O.D. |
Ø 280 mm (11.02 in) |
|
|
Ø 288 mm (11.34 in) |
||
|
Ø 305 mm (12.00 in) |
||
|
Disc thickness |
23 mm (0.90 in) |
|
|
25 mm (0.98 in) |
||
|
Caliper piston |
Single |
|
|
Cylinder I.D. |
Ø 57.15 mm (2.25 in) |
|
|
Rear disc brake |
Type |
Solid disc |
|
Disc O.D. |
Ø 262 mm (10.31in) |
|
|
Disc thickness |
10 mm (0.39 in) |
|
|
Caliper piston |
Single |
|
|
Cylinder I.D. |
Ø 38.15 mm (1.50 in) |
|
|
Parking brake |
Type |
BIR (Ball-in-Ramp) |
|
Actuation |
Lever |
|
|
EPB |
||
Specification (ESP)
|
Part |
Item |
Standard value |
Remark |
|
HECU |
System |
4 Channel 4 Sensor (Solenoid) |
Total control |
|
(ABS, EBD, TCS, ESP) |
|||
|
Type |
Motor, valve relay intergrated type |
|
|
|
Operating Voltage |
8 - 16V |
|
|
|
Operating Temperature |
-40 - 120°C (-40 - 248°F) |
|
|
|
Motor power |
310 W / 370 W |
|
|
|
Active Wheel speed sensor |
Supply voltage |
DC 4.5 - 20V |
|
|
Output current low |
5.9 - 8.4 mA |
|
|
|
Output current high |
11.8- 16.8 mA |
|
|
|
Output range |
1 - 2,500 Hz |
|
|
|
Tone wheel |
Front : 46 teeth, Rear : 46 teeth |
|
|
|
Air gap |
0.4 - 1.0 mm |
|
Service Standard
|
Items |
Standard value |
|
Brake pedal height |
176 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 |
23 mm (0.90 in) |
|
25 mm (0.98 in) |
|
|
Front brake disc service limit (23 mm) |
21 mm (0.82 in) |
|
21.4 mm (0.84 in) |
|
|
Front brake disc service limit (25 mm) |
22.6 mm (0.88 in) |
|
23 mm (0.90 in) |
|
|
Front brake disc pad thickness |
10.5 mm (0.41 in) |
|
13 mm (0.51 in) |
|
|
Front brake disc pad service limit |
2.0 mm (0.78 in) |
|
Rear brake disc thickness |
10 mm (0.39 in) |
|
Rear brake disc service limit |
8.4 mm (0.33 in) |
|
Rear brake disc pad thickness |
10 mm (0.39 in) |
|
Rear brake disc pad service limit |
2.0 mm (0.78 in) |
| Tightening Torques |
|
Items |
N.m |
kgf.m |
lb-ft |
|
Master cylinder to brake booster |
9.8 - 17.7 |
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 |
|
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 |
78.5 - 98.1 |
8.0 - 10.0 |
57.9 - 72.3 |
|
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 |
|
Wheel speed sensor mounting bolt |
8.8 - 13.7 |
0.9 - 1.4 |
6.5 - 10.1 |
|
HECU bracket mounting and nut |
10.8 - 13.7 |
1.1 - 1.4 |
8.0 - 10.1 |
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
..
Special service tools
Special Service Tools
Tool (Number and Name)
Illustration
Use
09581-2T100
Piston expander
Spreading the front disc brake piston...
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Warning light and message
When the High Beam Assist (HBA)
System is not working properly, the
warning message will come on for a
few second. After the message disappears,
the master warning light (
)
will illuminate.
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