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Is It Serious If Car Brake Pads Rust?

1 Answers
JudeMarie
09/06/25 3:02am
When car brake pads rust, timely treatment is necessary. Here are more details: Slight Rust on Brake Pads: Most brake discs are made of cast iron. In damp or rainy weather, combined with prolonged exposure to wind and sun, if the vehicle is parked for an extended period, it's natural for some rust to form on the surface. If the rust is slight and hasn't corroded the brake disc, simply lightly applying the brakes after starting the car can use the friction between the brake pads and the disc to easily grind off the rust. Severe Rust on Brake Pads: If the brake pads are severely rusted, it's best to take the vehicle to a repair shop. The brake disc should be removed and cleaned with sandpaper to thoroughly remove the rust. Check the brake pad surface for any abnormalities, and after proper installation, conduct a road test. Drive on a flat road at a speed of 70km/h and perform multiple braking actions to ensure no abnormalities. If vibrations still occur, it indicates that the brake disc surface is uneven, requiring further polishing or replacement as needed.
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