Does a small scratch on the side of the tire have any impact?
2 Answers
Scratches on car tires do have certain impacts, as they may have already damaged the sidewall cord layer, which significantly increases the chance of a tire blowout. If a piece of rubber is scraped off the side of the tire, it definitely cannot continue to be used. First, it's important to understand that the sidewall is the weakest part of the tire, unlike the tread area which has higher protective strength. Even with durable repair methods like hot patching, it can only provide a temporary solution. When the tire rolls, it is prone to bending and deformation, which over time can cause the repair material to detach (a phenomenon known as surge). The impact of a sidewall scratch is quite significant, so it's crucial to replace the tire promptly. Tire Inspection: It's best to inspect your car tires at least once a month. During parallel parking, even if the sidewall rubs against the curb, it can be hard to notice. Therefore, regular checks of the sidewall are essential, including looking for any scratches, bulges, punctures, aging, etc. Replacement Based on Condition: The decision to replace should be based on the tire's condition. If the tire is relatively new, a minor surface scratch may not be a big issue, and it can still be used. However, for tires that have been in use for a long time and show signs of aging and hardening, any scratches or impacts should be taken seriously. In such cases, it's safer to replace the tire for peace of mind.
Small scratches and dents on the tire sidewall should never be taken lightly, as this is one of the most frequently emphasized safety hazards. Unlike the tread, the sidewall lacks reinforced layers, and damage to this vulnerable area can lead to exposed or broken internal cords—especially under the heat and pressure of high-speed driving, where small dents may expand, causing air leaks or blowouts. I’ve personally witnessed numerous cases, such as a friend who ignored this issue and suddenly lost control while driving, with severe consequences. Immediate action is advised: pull over and inspect visually. Gently press the affected area with your finger to check the depth—if it exceeds 2mm or shows signs of exposed cords, the tire must be replaced. Don’t gamble with safety; it’s best to drive to a professional repair shop for a detailed inspection using diagnostic tools. To minimize such risks, avoid parking near curbs or hard objects and cultivate regular tire-checking habits. Safety should always come first—a small oversight can lead to major disasters.
