What Causes the Squeaking Sound When Braking at Startup?

[AnnaAnn]

The reasons for the squeaking sound when braking at startup are: 1. Rust on the brake discs or brake pads. This usually occurs after driving in the rain or leaving the car parked for an extended period, causing severe rust that sticks the brake discs and pads together; 2. Braking when starting a cold car. In lower temperatures, the rubber components in the suspension become stiff, leading to changes in the surfaces of the brake discs and pads, which can also produce abnormal noises; 3. Excessive wear of the brake discs and brake pads. Both components experience friction during each braking action, making them high-wear items. Solutions: 1. Apply butter or specialized lubricating oil to the connection between the brake pads and brake calipers; 2. Warm up the car before starting; 3. Regularly inspect and replace the components.