What Causes Abnormal Noise When Braking a Car?
1 Answers
Abnormal noise when braking is caused by reasons such as worn brake pads leading to the backing plate grinding against the brake disc, hard brake pads, or foreign objects in the brake pads. The related causes of abnormal noise are introduced as follows: Introduction to Checking the Causes of Abnormal Noise: When encountering abnormal noise, the first step is to check the thickness of the brake pads, which is fundamental to ensuring driving safety. Even if the brake pads are not thin, they may still produce noise during braking, similar to the sound of grinding against the warning indicator. This is because there are relatively large metal particles in the brake pads, which create noise when rubbing against the brake disc—essentially the sound of metal grinding against metal. This is a normal phenomenon and does not indicate a quality issue with the brake pads. Other Causes of Abnormal Brake Noise: The break-in period for a new car includes an important phase for the brake pads. Typically, after driving a few hundred kilometers, the braking will feel more comfortable. Newly replaced brake pads also need a break-in period to better integrate with the old brake disc. Initially, the braking may feel very hard, and it usually takes driving a few hundred kilometers before it improves.