Hyundai Elantra MD/UD: Specifications
Specifications
|
Item |
Specification |
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Master cylinder |
Type |
Tandem |
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Cylinder I.D. |
22.22 mm |
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Piston stroke |
45 ± 1 mm (1.77 ± 0.039 in) |
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Fluid level switch |
Provided |
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Brake booster |
Type |
10" Single |
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Boosting ratio |
8.0 : 1 |
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Front disc brake |
Type |
Ventilated disc |
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Disc O.D. |
Ø 280 mm (11.02 in) |
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Disc thickness |
23 mm (0.91 in) |
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Caliper piston |
Single |
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Cylinder I.D. |
Ø 57.2 mm (2.25 in) |
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Rear disc brake |
Type |
Solid disc |
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Disc O.D. |
Ø 262 mm (10.31in) |
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Disc thickness |
10 mm (0.39 in) |
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Caliper piston |
Single |
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Cylinder I.D. |
Ø 34 mm (1.34 in) |
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Rear drum brake |
Type |
Leading trailing |
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Drum I.D |
Ø 203.2 mm (8 in) |
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Brake lining thickness |
4.5 mm (0.18 in) |
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Clearance adjustment |
Automatic |
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Parking brake |
Type |
BIR (Ball-in-Ramp) |
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Actuation |
Lever |
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O.D. : Outer Diameter
I.D : Inner Diameter
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Specification(ESC)
|
Part |
Item |
Standard value |
Remark |
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|
HECU |
System |
4 Channel 4 Sensor (Solenoid) |
Total control (ABS, EBD, TCS, ESC) |
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|
Type |
Motor, valve relay intergrated type |
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Operating Voltage |
10 ~ 16 V |
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Operating Temperature |
-40 ~ 120 °C (-40 ~ 248°F) |
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Motor power |
270 W |
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Active Wheel speed sensor |
Supply voltage |
DC 4.5 ~ 20 V |
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Output current low |
5.9 ~ 8.4 mA |
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Output current high |
11.8~ 16.8 mA |
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Output range |
1 ~ 2,500 Hz |
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Tone wheel |
Front : 46 teeth, Rear : 47 teeth |
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Air gap |
0.4 ~ 1.0 mm |
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Yaw rate& Lateral G sensor (CAN TYPE) |
Operating Voltage |
10 ~ 16 V |
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Current Consumption |
Max. 140 mA |
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Yaw rate sensor measurement range |
± 75 °/sec |
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Lateral G sensor measurement range |
±14.715 m/s² |
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Service Standard
|
Items |
Standard value |
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Brake pedal height |
183 mm (7.20 in) |
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Brake pedal Full stroke |
135 mm (5.31 in) |
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Stop lamp switch clearance |
1.0 ~ 2.0 mm (0.04 ~ 0.08 in) |
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Brake pedal free play |
2 ~ 4 mm (0.08 in ~ 0.16 in) |
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Front brake disc thickness |
23 mm (0.90 in) |
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Front brake disc pad thickness |
11 mm (0.43 in) |
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Rear brake disc thickness |
10 mm (0.39 in) |
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Rear brake disc pad thickness |
10 mm (0.39 in) |
Tightening Torques
|
Items |
N.m |
kgf.m |
lb-ft |
|
|
Hub nut |
88.3 ~ 107.9 |
9.0 ~ 11.0 |
65.1 ~ 79.6 |
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Master cylinder to brake booster |
12.7 ~ 16.7 |
1.3 ~ 1.7 |
9.4 ~ 12.3 |
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Brake booster mounting nuts |
16.7 ~ 25.5 |
1.7 ~ 2.6 |
12.3 ~ 18.8 |
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Air bleeding screw |
6.9 ~ 12.7 |
0.7 ~ 1.3 |
5.1 ~ 9.4 |
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Brake tube flare nuts |
12.7 ~ 16.7 |
1.3 ~ 1.7 |
9.4 ~ 12.3 |
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Front caliper guide rod bolts |
21.6 ~ 31.4 |
2.2 ~ 3.2 |
15.9 ~ 23.1 |
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Rear caliper guide rod bolts |
21.6 ~ 31.4 |
2.2 ~ 3.2 |
15.9 ~ 23.1 |
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Front caliper assembly to knuckle |
78.5 ~ 98.1 |
8.0 ~ 10.0 |
57.9 ~ 72.3 |
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Rear caliper assembly to knuckle |
63.7 ~ 73.5 |
6.5 ~ 7.5 |
47.0 ~ 54.2 |
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Brake hose to caliper |
24.5 ~ 29.4 |
2.5 ~ 3.0 |
18.1 ~ 21.7 |
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Brake pedal member bracket bolts |
16.7 ~ 25.5 |
1.7 ~ 2.6 |
12.3 ~ 18.8 |
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Brake pedal shaft nut |
24.5 ~ 34.3 |
2.5 ~ 3.5 |
18.1 ~ 25.3 |
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Wheel speed sensor mounting bolt |
6.9 ~ 10.7 |
0.7 ~ 1.1 |
5.1 ~ 8.0 |
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HECU bracket mounting bolt and nut |
16.7 ~ 25.5 |
1.7 ~ 2.6 |
12.3 ~ 18.8 |
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Yaw rate&G sensor mounting bolts |
3.9 ~ 5.9 |
0.4 ~ 0.6 |
2.9 ~ 4.3 |
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Lubricants
|
Items |
Recommended |
Quantity |
|
Brake fluid |
DOT 3 or DOT 4 |
As required |
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Brake pedal bushing and bolt |
Chassis grease |
As required |
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Parking brake shoe and backing plate contacting surface |
Heat resistance grease |
As required |
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Front Caliper guide rod and boot |
AI-11P |
1.0g ~ 1.5g, 1.2g ~ 1.7g |
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Rear Caliper guide rod and boot |
AI-11P |
0.8 g ~ 1.3g |
