Checking the appearance
Check for uneven wear, cracks and serious damage on the brake disc surface. Replace if necessary.
Checking the runout
1. Secure the brake disc to the wheel hub and wheel bearing assembly using wheel nuts (in 2 or more places).
2. Check the runout with an indicator (at a distance of 10 mm from the outer edge of the disc).
Max. Runout: See below section "Technical data and specifications".
Note: Before checking, make sure that the wheel bearing axial play is within the normal range. See Chapter "Rear axle and suspension".
3. If the runout is significant, find the point of minimum runout by successively shifting the installation position of the brake disc on the hub and wheel bearing assembly by one hole.
4. If the runout is still abnormal, replace the brake disc or have it reamed on a brake drum lathe.
Thickness check
Check the thickness of the brake disc with a micrometer. If the thickness is below the limit, replace the brake disc.
Wear Limit: See below section "Technical data and specifications".