Why is there abnormal noise when braking?
2 Answers
Reasons for abnormal noise during braking: 1. The brake pads and brake discs do not match properly. This type of noise is normal as long as the vehicle does not pull to one side during braking, and you can continue driving normally. 2. There are foreign objects between the brake disc and brake pads, such as sand particles stuck between them. When you step on the brake, it will produce noise, but this does not affect safety. Pressing the brake firmly a few times will make the noise disappear. 3. The brake pads have worn to their limit. Brake pads are consumable items with a certain thickness. When they wear down to a certain extent, metal particles will cause unusual noises during braking to remind you that the brake pads need replacement. If you encounter this situation, you must replace them as soon as possible. The braking system is crucial for driving safety and should not be ignored or delayed.
I've encountered brake squealing several times in my over 20 years of driving experience. The most common cause is excessively worn brake pads, which produce squeaking sounds during friction – especially noticeable after cold starts or rainy-day driving. Rusty brake discs are another frequent issue, creating grinding noises when braking. Dust and small stones getting lodged in the system can also cause similar sounds. If left unaddressed, the noise progressively worsens while braking performance declines, dangerously increasing stopping distances. I recommend getting your brake system inspected at authorized shops every 10,000 kilometers – replacing pads or cleaning disc surfaces costs little but ensures safety. Also, avoid parking too long after car washes to minimize rust formation.
