What is the reason for replacing the rear fender?

[StCooper]

Replacing the rear fender is due to an accident. Cars with replaced fenders: Although the fender usually does not cause any adverse effects after repair, this indicates that the car has undergone "surgery," commonly referred to as an accident vehicle. Therefore, many buyers, even if the car's condition is still in good working order, are unwilling to purchase it at the original market value once they know the truth. After all, accident vehicles are generally perceived to have relatively lower safety standards. Replacing the front fender is not considered a major repair. Major car repairs: Major car repairs are mainly divided into three types: engine overhaul, transmission overhaul, and chassis suspension overhaul. Regardless of the type, the repair costs are quite high, even up to one-third of the car's purchase price. Although replacing the front fender is not considered a major repair, it still cannot deny the fact that the car's value depreciates.

[DiColin]

Last time I had to replace the rear fender because of a minor accident: I was turning too sharply on a narrow street and scraped against a corner, which dented the fender badly and chipped the paint. The repair shop inspection revealed internal cracks, and they warned that if not replaced, it could rust faster and affect the wheel well. Looking back, I really regret it—the cost was around 1,000 to 2,000 yuan, and it took three days without my car. Everyone, please drive carefully. Frequent parking and reversing in the city can easily lead to such scrapes and dents, especially at night when poor lighting makes it hard to see. During regular maintenance, pay extra attention to the edges of the fender for any rust spots—applying anti-rust paint early can save a lot of trouble. If you do end up replacing it, don’t worry too much; just choose genuine parts to restore it to its original condition, but act quickly to prevent corrosion from spreading to the body.

[LeOwen]

Rear fender replacement is most commonly required due to collision damage or corrosion issues. From observing many car enthusiasts' vehicles, I've noticed that minor accidents like scraping against parking lot pillars or rear-end collisions can deform fenders enough to warrant replacement. On the other hand, prolonged exposure to rainwater or salty environments can cause metal to rust through, which is particularly noticeable in older vehicle models. I recommend regular car washing and applying protective coatings to fenders to extend their lifespan. In modification scenarios, such as when installing larger tires that require more fender clearance, replacement may also be necessary. During repairs, avoid opting for cheap aftermarket parts to prevent issues like large gaps or water leakage post-installation. Driving slowly and avoiding potholes can help minimize accidental damage.

[Kendall]

My experience tells you that replacing the fender is mostly caused by reckless driving: Once, after having fun with friends, I reversed too fast and hit the curb, cracking the rear fender and forcing a replacement. It cost me a few hundred bucks and a scolding. Nowadays, young drivers tend to be impulsive, and fender issues often arise from scratches or debris on the roadside. I believe washing the car regularly to prevent mud buildup and rust can save you trouble. If you do replace it, make sure to check if the wheel liner is properly aligned—otherwise, the increased wind noise can be really annoying.