Checking the condition of the brake discs (VW Golf 1)

When the front wheels are removed to check the linings, the condition of the brake discs is also checked.

There should be no deep grooves on the discs (due to dirt or excessively worn pads).

The grooves cut deep into new brake pads, significantly reducing their service life.

Grooved brake discs can be additionally ground if they have not yet become too thin due to long-term use.

The minimum permissible thickness of the brake disc is 10 mm.

Discs that are too thin should be replaced in pairs, i.e. simultaneously on one axle (see section "Removal the brake disc", chapter "Brakes").

If the color of the brake disc changes to bluish, it means the disc has been overheated and needs to be replaced.

The original information is posted on the website (VWmanual.ru)