How many kilometers should the brake pads of an Audi A3 be replaced?

[GenevieveAnn]

Audi A3 brake pads should be replaced approximately every 30,000 to 60,000 kilometers. Brake pads are composed of friction material layer, heat insulation layer, adhesive layer, backplate, etc. The brake caliper pushes the backplate to press the friction material of the brake pad against the brake disc for braking. The following are situations where brake pads need to be replaced: 1. Check the thickness of the brake pads. Use a small flashlight to inspect whether the brake pads have become thin. When the black friction material of the brake pads is nearly worn out and the thickness is below 5 millimeters, replacement should be considered. 2. Braking noise. If you hear a sharp metallic screeching sound during daily driving, this is a warning sign. The wear indicator on the brake pad has started to grind against the brake disc, causing this high-pitched metallic noise. 3. Braking force. When driving and applying the brakes, if you feel the pedal is soft and requires deeper depression to achieve the usual braking effect, it may indicate that the brake pads have largely lost their friction and must be replaced immediately.