1. Incorrect installation: If the brake pads were not installed correctly, they may be rubbing against the rotor, causing a grinding noise. Ensure the pads are properly seated in the caliper and that the caliper is correctly installed.
2. Brake pad material: Some brake pad materials, particularly ceramic or performance pads, may produce a temporary grinding noise during the bedding-in process. This is normal and should disappear after a few hundred kilometers of driving.
3. Damaged rotor: If the brake rotor is damaged, warped, or has excessive wear, it can cause the brake pads to grind. Check the rotor for any visible damage or excessive wear and replace it if necessary.
4. Caliper or slide pin issues: A seized caliper or sticky slide pins can prevent the brake pads from retracting properly, causing them to rub against the rotor and produce a grinding noise. Inspect the caliper and slide pins for any issues and lubricate them if necessary.
5. Incorrect pad size: If the brake pads are too large or too small for the caliper, they may not fit properly and can cause a grinding noise. Ensure the brake pads are the correct size for your vehicle.
6. Contamination: If the brake pads or rotors are contaminated with oil, grease, or other substances, it can cause a grinding noise. Clean the brake pads and rotors thoroughly to remove any contaminants.
If the grinding noise persists after checking and addressing these potential causes, it is recommended to consult a qualified mechanic or brake specialist to diagnose and resolve the issue.
