Hyundai Elantra: General Information / 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" Single |
| Boosting ratio | 8.0 : 1 | |
| Front disc brake | Type | Ventilated disc |
| Disc O.D. | O 280 mm (11.02 in) | |
| Disc thickness | 23 mm (0.91 in) | |
| Caliper piston | Single | |
| Cylinder I.D. | O 57.2 mm (2.25 in) | |
| Rear disc brake | Type | Solid disc |
| Disc O.D. | O 262 mm (10.31in) | |
| Disc thickness | 10 mm (0.39 in) | |
| Caliper piston | Single | |
| Cylinder I.D. | O 33.96 mm (1.34 in) | |
| Rear drum brake | Type | Leading trailing |
| Drum I.D | O 203.2 mm (8 in) | |
| Brake lining thickness | 4.2 mm (0.17 in) | |
| Clearance adjustment | Automatic | |
| Parking brake | Type | BIR (Ball-in-Ramp) |
| Actuation | Lever | |
Specification (ABS)
| Part | Item | Standard value | Remark |
| HECU | System | 4 Channel 4 Sensor (Solenoid) | |
| Type | Motor, valve relay intergrated type | ||
| Operating Voltage | 8 ~ 16 V | ||
| Operating Temperature | -40 ~ 120 °C (-40 ~ 248°F) | ||
| Motor power | 195 W | ||
| Active Wheel speed sensor (ABS) | Supply voltage | DC 4.5 ~ 20 V | |
| Output current low | 5.9 ~ 8.4 mA | ||
| Output current high | 11.8 ~ 16.8 mA | ||
| Output range | 1 ~ 2500 Hz | ||
| Tone wheel | Front : 46 teeth, Rear : 47 teeth | ||
| Air gap | 0.4 ~ 1.0 mm |
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 ~ 16 V | ||
| Operating Temperature | -40 ~ 120 °C (-40 ~ 248°F) | ||
| Motor power | 290 W | ||
| Active Wheel speed sensor | Supply voltage | DC 4.5 ~ 20 V | |
| 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 : 47 teeth | ||
| Air gap | 0.4 ~ 1.0 mm |
Service Standard
| Items | Standard value |
| Brake pedal height | 182 mm (7.17 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) |
| Front brake disc service limit | 21.4 mm(0.84 in) |
| Front brake disc pad thickness | 11 mm (0.43 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) |
| Rear drum brake lining thickness | 4.2 mm (0.17 in) |
| Rear drum brake lining service limit | 1.0 mm (0.04 in) |
| Tightening Torques |
| Items | N.m | kgf.m | lb-ft |
| Master cylinder to brake booster | 12.7 ~ 16.7 | 1.3 ~ 1.7 | 9.4 ~ 12.3 |
| 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 | 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 |
| Wheel speed sensor mounting bolt | 7.8 ~ 11.8 | 0.8 ~ 1.2 | 5.8 ~ 8.7 |
| HECU bracket mounting and nut | 16.7 ~ 25.5 | 1.7 ~ 2.6 | 12.3 ~ 18.8 |
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 |
Special Service Tools
Special Service Tools
Tool(Number and Name)IllustrationUse09581-2T100Piston expanderSpreading the front disc brake piston.09580-0U000Brake piston adjusterRemoval and installtion of the rear disc ...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components
1. Cowl side trim 2. Front door scuff trim 3. Rear door scuff trim 4. Front pillar trim 5. Front door step trim 6. Rear door step trim 7. Center pillar upper trim 8. Center pillar lower trim 9. Rear pillar trim
...
Hyundai Elantra AD (2016-2020) Service Manual: Auto Defoging Actuator Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the auto defogging connector.
3.
Verify that the auto defogging actuator operates to the open
position when connecting 12V to terminal 3 and grounding terminal 4.
Verify that the auto defogging actuator operates to the close ...
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