Should Brake Pads Be Replaced at 3mm Thickness?

[VonEli]

If the brake pads are only 3mm thick, it is best to replace them immediately. Here are methods to determine whether the brake discs need to be replaced: 1. Listen for sounds: If there are abnormal noises when lightly applying the brakes, the brake pads must be replaced immediately. This is because the wear indicators on both sides of the brake pads are already directly rubbing against the brake discs, indicating that the brake pads have exceeded their limit. 2. Warning light: Typically, the decision to replace the brake discs is based on whether the brake disc warning light on the dashboard is illuminated. Normally, this light is off. When the brake discs are faulty or excessively worn, the light turns on and goes off after repairs. 3. Check the thickness: Most brake disc products have wear indicators, with three small dimples distributed on the disc surface. Use a vernier caliper to measure the depth of these dimples, which is 1.5mm. When the total wear depth on both sides of the brake disc reaches 3mm, it is recommended to replace the brake discs promptly.