2. To quickly check the thickness of the friction linings on each pad, you can use the inspection hole in the caliper. You can see the thickness of the pads remaining on the pads. However, remember that only one of the pads is fully visible.
To quickly check the thickness of the friction linings, not every pad can be used with an inspection hole in the caliper.
3. For a more complete check, it is necessary to remove the pads from the caliper and clean them thoroughly. This allows you to check the condition of the caliper and brake disc on both sides. More details about this are in chapter 9.
4. If the wear of at least one of the pads has exceeded the permissible level, all four pads on this axle must be replaced.
Warning: Do not swap pads to compensate for uneven wear as this may result in loss of braking performance.