Is It Normal for a New Car's Chassis to Rust?
2 Answers
It is not normal. Generally speaking, under normal circumstances, the chassis of most cars should not rust within 5-6 years if there is no damage or scratches to the chassis. Moreover, most cases of rust are caused by external factors. Below is the relevant introduction: Causes of rust: As a component directly exposed to the outside, the car chassis inevitably comes into contact with water stains and dirt from the road during daily driving. Coupled with the high temperatures of summer and conditions like acid rain, it is easy for the chassis to rust. Impact: Rust on the chassis does not have a significant short-term impact on the car. However, once rust is detected on the chassis, it is advisable to promptly visit a repair shop or a 4S dealership for treatment. The main approach involves polishing the rusted areas and then applying a waterproof and rust-proof coating for repair.
I've inspected many new car chassis and found slight rust is quite common. This is because before leaving the factory, parts are exposed to air, forming a thin oxidized rust layer on the steel surface - usually just a cosmetic issue that doesn't affect safety or performance. Moisture exposure during transportation or storage may intensify rust spots, but there's no need to worry if the rust is shallow, small, and not spreading to unaffected areas. I recommend thoroughly checking the chassis after taking delivery. If anything seems abnormal, have a professional apply anti-rust treatments like protective coatings to effectively prevent metal corrosion. Long-term neglect could lead to bigger issues like part loosening, making regular maintenance crucial - especially during humid seasons when extra attention is needed. Anti-rust products are available online or at auto repair shops.
