What's the noise of car brakes?

1, normal noise phenomenon. Brake pads are made of iron, graphite and asbestos. When they rub against the brake disc, some metal powder will inevitably be produced. At this time, people will make some squeaks when they step on the brakes.

Solution: The noise will decrease after driving for a period of time.

2. Brakes or brake pads rust: After parking for a long time, especially after wet weather or rain, there will be some rust or dirt on the brakes or brake pads.

Solution: Clean the brake disc and brake pad in time, and apply butter or special lubricating oil to the joint of brake pad and caliper. If the corrosion is serious, it needs to be replaced.