Hyundai Tucson: Brake System / Front Disc Brake

- Removal

• Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.(Refer to General Information - "Lift and Support Points")

1.Loosen the wheel nuts slightly.Raise the vehicle, and make sure it is securely supported.

2.Remove the front wheel and tire (A) from the front hub.

Tightening torque :107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)

• Be careful not to damage the hub bolts when removing the front wheel and tire (A).

3.Remove the caliper body (A) by loosening the guided rod bolt.

Tightening torque :21.6 - 31.4 N.m (2.2 - 3.2 kgf.m, 15.9 - 23.1 lb-ft)

4.Remove the brake pad (A).

5.Remove the caliper carrier (A) by loosening the caliper mouniting bolts.

Tightening torque :98.1 - 117.7 N.m (10.0 - 12.0 kgf.m, 72.3 - 86.8 lb-ft)

6.Remove the front brake disc (A) by loosening the screws.

Tightening torque :4.9 - 5.8 N.m (0.5 - 0.6 kgf.m, 3.6 - 4.3 lb-ft)

1.Check the brake pads for wear and fade.

2.Check the brake disc for damage and cracks.

3.Remove all rust and contamination from the surface, and measure the disc thickness at 24 points, at least, of same distance 5 mm (0.20 in) from the brake disc outer circle.

Front brake disc thickness Standard : 30 mm (1.18 in)Service limit : 28 mm (1.10 in)Difference in thickness of each measuring part : Less than 0.015 mm (0.0002 in) (Circumferential direction), 0.015 mm (0.0004 in) (Radial)

4.If wear exceeds the limit, replace the discs and pad assembly left and right of the vehicle.

1.Place a dial gauge about 10 mm (0.20 in) from the outer circumference of the brake disc, and measure the runout of the disc.

Brake disc runoutLimit : 0.050 mm (0.0016 in) or less (new one)

2.If the runout of the brake disc exceeds the limit specification, replace the disc, and then measure the runout again.

3.If the runout does not meet the limit specification, remove the disc, turn it 180° and reinstall. Then check the runout of the brake disc again.

4.If the runout cannot be corrected by changing the position of the brake disc, replace the brake disc.

1.Installation is the reverse of removal.

2.Use a SST (09581-11000) when installing the brake caliper assembly.