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What is the cause of the abnormal noise when braking in reverse?

2 Answers

MacNathan

07/23/25 8:17pm

The causes of abnormal noise when braking in reverse are as follows: 1. Normal noise phenomenon: Brake pads are composed of iron plates, graphite, asbestos, etc. When they rub against the brake disc, some metal powder is inevitably produced. At this time, stepping on the brake will produce some squeaking abnormal noise. If the brake pads make such abnormal noises, there is no need to worry too much, because this is a normal noise phenomenon of the brake pads. Stepping on the brake hard several times or stepping on the brake suddenly several times in an open area will improve this situation. 2. Brake pad wear: Another reason for abnormal noise when braking is that the wear of the brake pads has reached the limit. Friction occurs between the brake warning plate and the brake disc, resulting in a metal-on-metal sound. At this time, the braking effect will be significantly reduced, posing a serious threat to the driver's safety. Therefore, it is necessary to replace the car's brake pads in time to prevent danger.

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DiMadison

08/10/25 6:15pm

After driving for so many years, it's quite common to hear strange noises when braking in reverse. This is usually due to rust or dust accumulation on the brake disc surface. Especially after rain or parking for several days, rust becomes noticeable, and the brake pads make a squeaking sound when rubbing. I've experienced this with my own car: after getting wet in the rain and reversing out of the garage, the brakes would squeak when pressed, but the noise would disappear after driving for a few minutes. If the noise persists, it could indicate severe brake pad wear or a foreign object stuck in between, requiring inspection and replacement. Regular car washing and driving at low speeds to remove rust and dirt before normal driving can help reduce this issue. Also, pay attention to the parking environment and avoid leaving the car in damp places for too long.

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