Does a Sidewall Scratch on a Tire Require Replacement?
2 Answers
Tire sidewall scratches require immediate replacement. Because the sidewall of a tire is relatively weak, if the sidewall is scratched, it is almost impossible to repair. Continued use poses a risk of a blowout, creating a safety hazard. If the tire is already worn and has tread wear indicators, these slightly raised indicators located at the bottom of the tread grooves, measuring 1.6 millimeters in height, indicate that the tire should be replaced immediately, as continued driving is no longer safe. Additionally, the following situations require prompt tire replacement: Tire damage: If the tire has been damaged by hitting a curb, falling into a pothole, or being punctured by a nail, it may be severely compromised. Damaged tires may sometimes be repairable, but only a professional repair shop can accurately determine whether the tire can be repaired or needs to be replaced. Generally, sidewall damage cannot be repaired, and for safety reasons, the tire must be replaced. Tire aging: If you notice tread deformation or significant cracking, stop using the tire immediately and have it inspected by a professional repair shop to determine if it can continue to be used. Tire bulges: Bulges in a tire are a major factor leading to blowouts, especially on highways, and are extremely dangerous. Tires with bulges should be replaced promptly.
I've been driving for decades, and sidewall tire damage is something to take seriously. Last time my tire got scraped by a curb, it looked minor at first glance. But when the mechanic measured it with a tool, the depth exceeded 3mm, exposing the inner cord layer. The technician explained that sidewall damage easily leads to blowouts, especially under high-speed pressure. Since then, I've developed a habit: during every car wash, I meticulously inspect tire sidewalls, testing depth with my fingernail. If I feel roughness, I replace them immediately. After all, tires don't last forever - new tires may cost hundreds or thousands, but safety is priceless. Never cut corners here; an accident would mean far higher repair costs, not to mention potential harm to others.
