Hyundai i-30: Brake System / Brake Line

Hyundai i30 (PD) 2018-2025 Service Manual / Brake System / Brake System / Brake Line

Components and components location

Components

Repair procedures

Removal

Brake Tube (Engine Room)

[LHD]

[RHD]

1.	Disconnect the negative (-) battery cable.

2.	Disconnect the brake fluid level switch connector. [LHD] [RHD]

Remove the brake fluid from the master cylinder reservoir with a syringe.

•	Do not spill brake fluid on the vehicle, it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.

Remove the brake tube from the ESP (ABS), master cylinder and brake tube connector.

Tightening torq u e

ABS : 13.7 - 16.7 N.m (1.4 - 1.7 kgf.m, 10.1 - 12.3 lb-ft)

ESP : 18.6 - 22.6 N.m (1.9 - 2.3 kgf.m. 13.7 - 16.6 lb-ft)

Brake tube connector : 13.7 - 16.7 N.m (1.4 - 1.7 kgf.m, 10.1 - 12.3 lb-ft)

Master cylinder (ABS) : 13.7 - 16.7 N.m (1.4 - 1.7 kgf.m, 10.1 - 12.3 lb-ft)

Master cylinder (ESP) : 18.6 - 22.6 N.m (1.9 - 2.3 kgf.m. 13.7 - 16.6 lb-ft)

•	When replacing, be careful not to damage the brake tube.

Brake Hose

1.	Disconnect the negative (-) battery cable.

2.	Disconnect the brake fluid level switch connector. [LHD] [RHD]

Remove the brake fluid from the master cylinder reservior with a syringe.

•	Do not spill brake fluid on the vehicle, it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.

4.	Remove the wheel & tire.

5.	Remove the brake hose clip (A).

Disconnect the brake tube by loosening the tube flare nut (B).

Tightening torque :

12.7 - 16.7 N.m (1.3 - 1.7 kgf.m, 9.4 - 12.3 lb-ft)

[Front]

[Rear]

Disconnect the brake hose by loosening the bolt (A) & (B).

Tightening torque :

24.5 - 29.4 N.m (2.5 - 3.0 kgf.m, 18.1 - 21.7 lb-ft)

[Front]

[Rear]

Inspection

1.	Check the brake tubes for cracks, crimps and corrosion.

2.	Check the brake hoses for cracks, damage and fluid leakage.

3.	Check the brake tube flare nuts for damage and fluid leakage.

4.	Check brake hose mounting bracket for crack or deformation.

Installation

To install, reverse the removal procedure.

•	Use a new washer (A) whenever installing.

2.	After installing, bleed the brake system. (Refer to Brake System -"Brake System Bleeding") (Refer to Brake System - "ABS System Bleeding) (Refer to Brake System - "ESP System Bleeding)

3.	Check the spilled brake oil.

Master Cylinder

Components and components location Components [LHD] 1. Reservoir cap 2. Reservoir 3. Brake booster 4...

Specifications Specification [LHD] Brake oil : DOT 3 or DOT 4 Reservoir capacity (cc) TOTAL A+B+C+D+E+F 500 ± 20 MAX LEVEL A+B+C+D+E 475 ± 20 MIN LEVEL B+C+D+E 200 ± 20 ON LEVEL C+D+E 170 ± 10 PARTIAL LEVEL D Pri : 53 ± 50 D Sec : 51 ± 5 CLUTCH LEVEL F 26 ± 5 [RHD] Reservoir capacity (cc) TOTAL A+B+C+D+E+F 456...

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