What Causes Brake Disc Vibration When Braking on Rainy Days?
1 Answers
Reasons for clicking sounds when braking in the rain: 1. Fine sand carried by rainwater adheres to the brake discs. In humid weather or when there is a large temperature difference between day and night, condensation or post-rain rust forms on the brake discs, equivalent to tiny particles. Car brake pads can be categorized as hard or soft. Hard pads are more wear-resistant, but if there are tiny particles between hard pads and gray cast iron brake discs, sharp noises may occur. A few brake applications will wear off these small particles. 2. The break-in period for new cars, where brake pad break-in is a crucial part. It usually takes several hundred kilometers of driving before the brakes feel more comfortable. Newly replaced brake pads also require a break-in period to better integrate with the old discs. Initially, the brakes may feel very stiff, and it typically takes several hundred kilometers of driving before they improve. 3. While driving, very small sand particles may get between the pads and discs, sometimes causing abnormal noises due to friction. This situation generally does not require repair; driving for a while will allow the small sand particles to fall out. 4. Missing or damaged brake disc mounting screws can also cause abnormal braking noises. 5. Brake system malfunction, which requires inspection and repair.
