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Front Brake Disc Runout Check

WARNING: This page is about a different car, the 2016 Kia K900. However, it is still accessible from the selected car via links, so may be relevant.
  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: 0.03 mm (0.0012 in.) or less (new one)

    Fig 1: Measuring Runout Of Disc
    G11800809Courtesy of KIA MOTORS AMERICA, INC.
  2. If the runout of the brake disc exceeds the limit specification, reinstall the disc after turning the disc 72° clockwise. Recheck the runout. If the runout exceeds the specification, try turning the disc by 72° and recheck the runout until a full revolution (360°, 4 steps).
  3. If the runout cannot be corrected by turning the disc, replace the brake disc.
  4. When installing brake disc, runout peak point markings (A) on disc and hub must be as close as possible (within 72° range).
    Fig 2: Markings Runout Peak Point On Disc And Hub
    G11800810Courtesy of KIA MOTORS AMERICA, INC.
  5. After installing the new disc repeat procedure above 1~4 again.
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