Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 94 (Brake System (Except HEV)) >> Front Disc Brake >> Repair Procedures >> Inspection >> Front Brake Disc Runout Check

Front Brake Disc Runout Check

WARNING: This page is about a different variant/trim than selected.
  1. Place a dial gauge about 5 mm (0.2 in.) from the outer circumference of the brake disc, and measure the runout of the disc.

    Brake disc runout 

    Limit: 0.04 mm (0.0016 in.) or less (new one)

    Fig 1: Checking Front Brake Disc Runout
    G12142088Courtesy of KIA MOTORS AMERICA, INC.
  2. If the runout of the brake disc exceeds the specified limit, replace the disc, and then measure the runout again.
  3. If the runout does not exceed the specified limit, 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.