Measuring Lateral Run-Out

Fig 1: Identifying Lateral Run Out Measurement

Courtesy of VOLVO CARS CORPORATION

Put the test gauge point against the brake disc as illustrated.

Rotate the brake disc. Use a socket to help.

Note the test gauge run-out. Brake disc lateral run-out must not exceed 0.040 mm.

If lateral run-out exceeds the value, replace the brake disc.

To replace the brake disc, see BRAKE DISC FRONT, REPLACING .