What Causes Brake Noise When Going Downhill?
1 Answers
Reasons for brake noise when going downhill: 1. New car break-in period: Generally, new cars may produce brake noise during the break-in period because the brake pads and discs need time to wear in, so the noise usually disappears after some driving; 2. Foreign objects between brake pads and discs: Sand or other debris often gets between the brake pads and discs, causing noise when braking; 3. Brake pad composition: Brake pads are made from a mixture of materials like graphite, resin, and iron powder. If the surface of the brake pad encounters metal particles or rough spots, it can produce noise; 4. Improper brake pad installation or caliper component failure: For vehicles that have recently had brake pads or discs replaced, if the noise persists after the break-in period, it may indicate improper installation of the brake pads. Installing the brake pads incorrectly can also cause noise.