Is It Normal for Brake Discs to Rust After One Month on a New Car?
2 Answers
It is normal for brake discs to rust after one month on a new car. This happens when the car hasn't been driven for a long time. The owner only needs to drive the car, and the rust on the brake discs will be removed during the braking process. Simply put, a brake disc is a round disc that rotates as the car moves. The brake caliper clamps the brake disc to generate braking force, slowing down or stopping the car when the brakes are applied. Brake discs offer effective braking performance and are easier to maintain compared to drum brakes. There are three types of brakes: disc brakes, drum brakes, and air brakes. Older cars often have disc brakes in the front and drum brakes in the rear. Drum brakes are sealed and shaped like a drum, and they are also commonly referred to as 'brake pots' in China.
The issue of brake discs rusting within a month on a new car is, in my opinion, completely normal. I've owned several cars, and whether new or old, brake disc rust is very common, especially during rainy or humid weather. Brake discs are made of metal, exposed directly without coatings, so surface oxidation and rust are natural when parked for extended periods. This doesn't affect braking performance because the friction from braking will wear off the rust. In the first few months, a new car is still in the break-in period, and rust actually reminds me to drive more frequently to ensure even wear on the braking system. Remember, don't manually scrape off the rust or use chemical sprays, as that can damage the disc surface. Try to park in a garage or dry area to minimize rust. Only if the rust is too thick or there's unusual noise while braking should you visit the dealership. Overall, just drive with peace of mind.
