Why does the car make abnormal noise when braking after being parked for a long time?

1 Answers
LaMax
07/30/25 5:28am
It may be due to foreign objects such as sand or metal particles between the brake pads and brake discs; or the brake pads and discs of a new car being too hard; or the brake pads being severely worn. Additionally, poor-quality brake pad materials can also cause abnormal noise. Here are the specific details: 1. Internal rust: The most likely cause of abnormal noise in a car that hasn't been used for a long time is rust between the brake pads and brake discs. In this case, the owner needs to sand them down and then apply lubricant. 2. Brake discs: Another possibility is that the brake pads and discs are too hard and still need breaking in. This phenomenon will disappear after driving a few hundred miles. 3. Friction patterns: Additionally, abnormal noise may occur when reversing the car, usually due to changes in the friction patterns. The car's braking system is one of the most important safety devices, so owners should also pay attention to regular inspection and replacement of brake pads.
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