Kia Forte BD Quiz
Maintenance

Disc Brakes and Pads

In this manual: Maintenance
General Information — 8Maintenance — 32Engine Mechanical System — 47Engine Electrical System — 17Emission Control System — 10Engine Control System/Fuel System — 32Clutch System — 11Manual Transmission — 11DCT (Dual Clutch Transmission) System — 16Drive Shaft and Axle — 8Suspension System — 26Steering — 9Restraints — 11Brake System — 27Body (Interior and Exterior) — 119Body Electrical System — 98Heating, Ventilation, and Air Conditioning — 27
20steps
~120min
4/5difficulty
Done 0 of 20

Repair Procedures

Inspection

Check the pads for excessive wear, the discs for runout and wear, and the calipers for fluid leakage.

Front Brake

Front Brake Disc Thickness Inspection

  1. Inspect the brake pads for wear and discoloration.

  2. Inspect the brake disc for damage and cracks.

  3. Remove all rust and contamination from the surface, then measure the disc thickness at 8 points at equal distances (5 mm) from the outer edge of the brake disc.

    Front brake disc thickness

    Standard

    - 15 inch: 23.0 mm (0.9055 in)

    - 16 inch: 25.0 mm (0.9843 in)

    Service Limit

    - 15 inch: 21.0 mm (0.8268 in)

    - 16 inch: 23.4 mm (0.9213 in)

    Runout: Less than 0.005 mm (0.0002 in)

  4. If wear exceeds the allowable limit, replace the left and right discs and pads as a set.

Front Brake Pad Inspection

  1. Check pad wear. Measure the pad thickness and replace it if it is less than the specified value.

    Pad Thickness

    Standard Value:

    - 15 inch: 11.0 mm (0.4331 in)

    - 16 inch: 11.5 mm (0.4528 in)

    Service Limit

    - 15 inch: 2.0 mm (0.0787 in)

    - 16 inch: 2.0 mm (0.0787 in)

  2. Make sure that grease is applied to the sliding contact points. Check the pads and backing plates for metal damage.

Front Brake Disc Runout Inspection

  1. Position a dial indicator approximately 5 mm (0.2 in.) from the outer edge of the brake disc and measure disc runout.

    Brake disc runout Limit: 0.04 mm (0.00157 in.) or less (new)

  2. If brake disc runout exceeds the specified limit, replace the disc, then measure runout again.

  3. If runout does not exceed the specified limit, reinstall the brake disc rotated 180°, then check brake disc runout again.

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

Rear Brake

Rear brake disc thickness inspection

  1. Inspect the brake pads for wear and discoloration.

  2. Inspect the brake disc for damage and cracks.

  3. Remove all rust and contamination from the surface, and measure the disc thickness at no fewer than 8 points at equal distances (5 mm) from the outer circle of the brake disc.

    Brake Disc Thickness

    - Standard: 10.0 mm (0.3937 in.)

    - Service limit: 8.4 mm (0.3307 in.)

    - Runout: Less than 0.005 mm (0.0002 in.)

  4. If wear exceeds the allowable limit, replace the left and right discs and pads as a set.

Rear brake pad inspection

  1. Check pad wear. Measure the pad thickness and replace it if it is less than the specified value.

    Pad Thickness

    - Standard: 9.0 mm (0.3543 in.)

    - Service limit: 2.0 mm (0.0787 in.)

  2. Make sure that grease is applied to the sliding contact points. Check the pads and backing plates for metal damage.

Rear brake disc runout inspection

  1. Position a dial indicator approximately 5 mm (0.2 in) from the outer edge of the brake disc and measure disc runout.

    Brake Disc Runout Limit: 0.03 mm (0.00118 in) or less (new)

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

  3. If runout exceeds the specified limit, reposition the brake disc by turning it 180°, then re-check the brake disc runout.

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

Test yourself

A quick Kia Forte BD quiz: every answer comes with an explanation and a link to the manual page.