
If the wound does not damage the cord material, it can still be used, but regular inspection is required to check if the wound expands. Cases where repair is not recommended: If a piece of the sidewall is missing, it is advised not to repair it. The sidewall is the weakest part of the tire. Forcing a repair may cause the adhesive patch on the sidewall to peel off due to constant deformation and recovery during rotation. If a mushroom plug repair is used, it may cause the sidewall cords to break, leading to bulging. Tires with sidewall damage: Tires with sidewall damage can be used as a spare tire for a short period after repair, but long-term use is not recommended. High-speed driving is also not advised.

I've been driving for over twenty years and have encountered quite a few instances of tire sidewall damage. I remember that time on the highway when a branch scratched a cut on the side of my tire. I knew something was wrong immediately and pulled over to check. The sidewall of a tire isn't as thick as the tread. Once there's a scratch or bulge, the internal structure can easily be damaged. Under high pressure while driving, it can blow out, which is extremely risky. Later, I asked some mechanics, and they all emphasized that this kind of damage can't be repaired—the tire must be replaced. Although it costs some money, it's worry-free and safe. Otherwise, like that time I saw my friend's tire bulge and then burst in the city, it nearly caused an accident. I recommend taking a good look at your tires before driving and getting any issues checked at a 4S shop.

Our family often goes on road trips, with elderly and children in the car. Before each trip, I carefully check the tire safety. If the sidewall of a tire is damaged, such as being scraped by a curb or having a bulge, it really shouldn't be taken lightly. Just think about it, a sidewall blowout at high speed is no joke, especially when you're with your family. Such an accident could have serious consequences. I believe safety comes first—if it needs to be replaced, replace it. Don't risk it just to save a few hundred bucks. It's best to develop the habit of using your phone's flashlight to inspect the tires when parked. If you notice anything unusual, go to a professional shop immediately for inspection and replacement. Don't wait until something happens to regret it.

I used to try to save money by a used car, but soon the sidewall of the tire got a deep scratch from rubbing against the curb. I thought, 'Can I just make do with it?' Then I asked a mechanic I knew, and he said the sidewall was too thin to be repaired properly and could easily blow out during turns. Thinking about it, he was right—if something happened, the repair costs would be even higher. Now I’ve learned my lesson: if the tire condition is poor, just replace it. Safety is what really matters.

I take my car seriously and have studied tire details. The sidewalls mainly provide support, unlike the tread which is designed to endure wear and pressure. Once there's damage, such as small cracks or bulges, the internal cords might be broken, leading to air leakage and a potential blowout while driving. In such cases, replacing the tire is absolutely necessary—no room for compromise. Driving is a joy, but safety should never be compromised. I recommend regular inspections and immediate visits to the repair shop if any issues are found.

Last time my buddy went on a road trip, his tire sidewall got bulged after hitting a pothole. He thought it was a minor issue and didn't replace it. Two weeks later, the tire suddenly blew out on the highway, causing the car to spin violently. Fortunately, there were no other cars around and no one got hurt. Since then, whenever I see scratches or bulges on tire sidewalls, I know they must be replaced immediately. A small oversight can lead to big disasters - safe driving depends on good tires.


