Hyundai Elantra HD: Specifications
Specifications
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Item |
Specification |
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Master cylinder Type I.D. Piston stroke Fluid level warning sensor |
Tandem type 20.64 mm (0.813 in) 45 mm (1.77 in) Provided |
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Proportioning valve(CBS) Cut-in pressure(Split point) Decompression ratio |
26 kg/cm² (2.55 MPa, 369.8 psi) 0.27 : 1 |
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Brake booster Type Boosting ratio |
Vacuum 9 : 1 (CBS), 7.5 : 1 (ABS, ESC) |
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Front brake(Disc) Type Disc O.D. Disc I.D. Disc thickness Pad thickness Cylinder type Cylinder I.D. |
Floating type with ventilated disc 275 mm(10.83 in) 172 mm(6.77 in) 26 mm(1.02 in) 11 mm(0.43 in) Single piston Ø57.2 mm(2.25 in) |
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Rear brake(Disc) Type Disc O.D. Disc I.D. Disc thickness Pad thickness Cylinder type Cylinder I.D. |
Floating type with solid disc 262 mm (10.31 in) 185 mm (7.28 in) 10 mm (0.39 in) 10 mm (0.39 in) Single piston Ø30.0 mm (1.18 in) |
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Rear brake (Drum) Type Drum I.D. Brake lining thickness Clearance adjustment |
Leading trailing 203.2 mm (8.00 in) 4.3 mm (0.17 in) Automatic |
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Parking brake Actuation Type Drum I.D. |
DIH (Drum in hat) Lever 168 mm(6.61 in) |
ABS : Anti-lock Brake System
CBS : Conventional Brake System
ESC : Electronic Stability Control system
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Specification (ABS)
|
Part |
Item |
Standard value |
Remark |
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|
HECU(Hydraulic and Electronic Control Unit) |
System |
4 channel 4 sensor (Solenoid) |
·ABS system:ABS & EBD control |
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Type |
Motor, valve relay intergrated type |
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Operating voltage |
8 V ~ 16 V(DC) |
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Operating temperature |
-40 ~ 120 °C (-40 ~ 248 °F) |
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Warning lamp |
Operating voltage |
12 V |
·ABS W/L:ABS failure ·Brake W/L:Parking, brake oil, EBD failure |
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Current consumption |
80 mA |
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Acitve wheel speed sensor |
Supply voltage |
DC 4.5 ~ 20 V |
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Operating temperature |
-40 ~ 150 °C (-40 ~ 302 °F) |
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Output current low |
5.9 ~ 8.4 mA |
Typ.7 mA |
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Output current High |
11.8 ~ 16.8 mA |
Typ.14 mA |
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Frequency range |
1 ~ 2500 HZ |
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Air gap |
Front |
0.4 ~ 1.0 mm (0.02 ~ 0.04 in) |
Typ.0.7 mm(0.03 in) |
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Rear |
0.4 ~ 1.0 mm (0.02 ~ 0.04 in) |
Typ.0.7 mm(0.03 in) |
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Tone wheel |
48 teeth |
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Output duty |
30~70 % |
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Specification(ESC)
|
Part |
Item |
Standard Value |
Remark |
|
|
HECU(Hydraulic and Electronic Control Unit) |
System |
4 channel 4 sensor(Solenoid) |
·Total control( ABS, EBD, TCS, ESC) |
|
|
Type |
Motor, valve relay intergrated type |
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Operating voltage |
8 V ~ 16 V(DC) |
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Operating temperature |
-40 ~ 120 °C (-40 ~ 248 °F) |
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Warning lamp |
Operating voltage |
12 V |
·ESC Operating Lamp ·ESC Warning Lamp |
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Current consumption |
80 mA |
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Active wheel speed sensor |
Supply voltage |
DC 4.5 ~ 20V |
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Operating temperature |
-40 ~ 150 °C (-40 ~ 302 °F) |
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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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Tone wheel |
48 teeth |
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Frequency range |
1 ~ 2500 HZ |
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Airgap |
Front |
0.4 ~ 1.0 mm (0.02 ~ 0.04 in) |
Typ.0.7 mm(0.03 in) |
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Rear |
0.4 ~ 1.0 mm (0.02 ~ 0.04 in) |
Typ.0.7 mm(0.03 in) |
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Steering Wheel Angle Sensor |
Operating Voltage |
8V ~ 16 V |
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Current Consumption |
Max 150 mA |
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Operating Angular velocity |
Max ± 780 °/sec |
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Yaw-rate & Lateral G sensor |
Operating Voltage |
8 V ~ 16 V |
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Current Consumption |
Max. 120 mA |
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Yaw Sensor Operating Range |
±100 ° /s |
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G Sensor Operating Range |
±1.8 G |
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Service Standard
|
Item |
Standard value |
|
Standard value Brake pedal height Brake pedal stroke Stop lamp switch outer case to pedal stopper clearance Brake pedal free play Booster push rod to master cylinder piston clearance Parking brake lever stroke when lever assembly is pulled with 196N (20Kg, 44lb force) Front disc brake pad thickness Front disc thickness Rear disc brake pad thickness Rear disc brake disc thickness Rear parking brake lining thickness |
174.3 mm (6.86 in) [LHD] 135 mm (5.31 in) 1.0 ~ 2.0 mm (0.04 ~ 0.08 in) 3 ~ 8 mm (0.11 ~ 0.31 in) 0 (at 500 mmHg vacuum) 7 clicks 11 mm (0.43 in.) 26 mm (1.02 in) 10 mm (0.4 in) 10 mm (0.4 in) 3.3 mm (0.13 in) |
Tightening Torques
|
Item |
N.m |
kgf.m |
lb-ft |
|
Proportioning valve to master cylinder |
34.3 ~ 53.9 |
3.5 ~ 5.5 |
25.3 ~ 39.8 |
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Master cylinder to booster mounting nut |
7.9 ~ 11.8 |
0.8 ~ 1.2 |
5.8 ~ 8.7 |
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Brake booster mounting nut |
12.7 ~ 15.7 |
1.3 ~ 1.6 |
9.4 ~ 11.6 |
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Bleeder screw |
6.9 ~ 12.7 |
0.7 ~ 1.3 |
5.1 ~ 9.4 |
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Brake tube to HECU (M10 nut)-ABS |
12.7 ~ 16.7 |
1.3 ~ 1.7 |
9.4 ~ 12.3 |
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Brake tube to HECU (M12 nut)-ECS |
18.6 ~ 22.6 |
1.9 ~ 2.3 |
13.7 ~ 16.6 |
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Caliper guide rod bolt |
21.6 ~ 31.4 |
2.2 ~ 3.2 |
15.9 ~ 23.1 |
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Caliper mounting bolt (Front) |
78.5 ~ 98.1 |
8.0 ~ 10.0 |
57.9 ~ 72.3 |
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Caliper mounting bolt (Rear) |
49.0 ~ 58.8 |
5.0 ~ 6.0 |
36.2 ~ 43.4 |
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Brake hose to front caliper |
24.5 ~ 29.4 |
2.5 ~ 3.0 |
18.1 ~ 21.7 |
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Brake pedal member assembly bracket mounting nut (cowl side upper
mounting) |
16.7 ~ 25.5 |
1.7 ~ 2.6 |
12.3 ~ 18.8 |
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Brake pedal mounting nut |
12.7 ~ 15.7 |
1.3 ~ 1.6 |
9.4 ~ 11.6 |
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Stop lamp switch mounting nut |
7.9 ~ 9.8 |
0.8 ~ 1.0 |
5.8 ~ 7.2 |
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Wheel speed sensor mounting bolt |
6.9 ~ 10.8 |
0.7 ~ 1.1 |
5.1 ~ 8.0 |
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HECU mounting bracket bolt |
16.7 ~ 25.5 |
1.7 ~ 2.6 |
12.3 ~ 18.8 |
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HECU bracket mounting nut |
5.9 ~ 9.8 |
0.6 ~ 1.0 |
4.3 ~ 7.2 |
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Yaw rate & Lateral G sensor mounting bolt |
4.9 ~ 7.8 |
0.5 ~ 0.8 |
3.6 ~ 5.8 |
Lubricant
|
Item |
Recommended lubricant |
Quantity |
|
Brake fluid |
DOT 3 |
As required |
|
Brake pedal bushing and brake pedal bolt |
Chassis grease |
As required |
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Parking brake shoe and backing plate contact surfaces |
Bearing grease |
As required |
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Caliper guide rod bolt and boot |
RX-2 grease |
1.2 ~ 1.7 g (Leading) 1.0 ~ 1.5 g (Trailing) |
|
Rear caliper guide rod and boot |
Rubber grease |
0.8 ~ 1.3 g |
