Hyundai Genesis: Brake System / Rear Disc Brake Repair procedures

Removal

1.	Remove the rear wheel & tire. Tightening torque: 88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft)

2.	Loosen the guide rod bolt (B) and pivot the caliper up out of the way. Do not loosen the bridge bolt (A) instead of the guide bolt (B).

3.	Remove pad shim (B), pad retainers (C) and brake pads (B) in the caliper bracket (A).

4.	Loosen the hose eyebolt (B) and caliper mounting bolts (C), then remove the rear caliper assembly (A). Tightening torque : Brake hose to caliper (C) : 24.5 ~ 29.4 N.m (2.5 ~ 3.0 kgf.m, 18.1 ~ 21.7 lb-ft) Caliper assembly to knuckle (A) : 78.5 ~ 98.1 N.m (8.0 ~ 10.0 kgf.m, 57.9 ~ 72.3 lb-ft)

5.	Remove the rear brake disc (A) by loosening the screws.

Replacement

1.	Loosen the guide rod bolt (B) and pivot the caliper up out of the way. Do not loosen the bolt bridge (A) instead of the guide bolt (B).

2.	Replace pad shim (B), pad retainers (C) and brake pads (B) in the caliper bracket (A).

Inspection

1.	Check the brake pads for wear and fade.

2.	Check the brake disc for damage and cracks.

3.

Remove all rust and contaminating materials from the surface, and measure the disc thickness at the place of 5mm from the outer circumference as the illustration below. Standard value : 13 mm (0.5118 in) Service limit : 11.4 mm (0.4488 in) Deviation: less than 0.005 mm (0.0002 in) If wear exceeds the limit, replace the discs and pad assembly on the left and right of the vehicle.

1.	Check the pad wear. Measure the pad thickness and replace it, if it is less than the specified value. Pad thickness Standard value: 10 mm (0.3937 in) Service limit : 8.0 mm (0.3149 in)

2.	Check that grease is applied to sliding contact points, and check the pad and backing metal for damage. The brake pad wear indicator and brake disc make a friction noise when brake pads are worn out below the service limit of 2.0 mm.

1.	Place a dial gauge about 5mm (0.2 in.) from the outer circumference of the brake disc, and measure the runout of the disc. Brake disc runout Limit : 0.025mm (0.00098 in.)

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 exceeds the limit specification, install the brake disc after turning it 180° and 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.

Installation

1.	To install, reverse the removal procedure.

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

3.	After installation, bleed the brake system. (Refer to Brake System - "Brake System Bleeding")

Rear Disc Brake Components and Components Location

Components 1. Guide rod bolt2. Bleed screw3. Caliper body4. Caliper carrier5. Inner pad shim6. Brake pad7. Pad retainer ...

Stop Lamp Switch Components and Components Location

Components Location 1. Brake pedal member assembly2. Stop lamp switch3. Clevis pin4. Snap pin5. Brake pedal stopper6. Return spring7. Bolt ...

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