Is It Normal for New Car Brake Discs to Rust?

1 Answers
BenjaminDella
07/29/25 9:19pm
Rust on new car brake discs indicates that the vehicle has been stored for an extended period, but this is still considered normal. The rusting of new car brake discs is related to their material. Most car brake discs are made of cast iron, which inevitably rusts when exposed to moisture in the air. Rust on new car brake discs is also influenced by the environment. Some new cars parked in open garages for long periods are exposed to rain and snow, causing rust to form on the brake discs. If left untreated, the rust will accumulate and thicken over time, affecting the car's braking performance. Solutions for rusted brake discs are as follows: 1. Minor rust: This can be removed through normal braking. The friction between the brake pads and discs will gradually wear away the rust after several brake applications, restoring normal function. 2. Severe rust: When brake discs are heavily rusted, normal braking may not be sufficient to remove the rust. The uneven surface caused by rust can lead to steering wheel vibration, unusual noises, and other issues during braking.
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