
Tire sidewall punctures require replacement. Whether to replace or patch a tire depends on the location and extent of the damage. If the puncture is in the tread area (crown) and the nail isn't too thick, it can usually be repaired at a professional repair shop. The most effective repair method is using a mushroom plug, though this method is more expensive. However, if the puncture is in the sidewall, it cannot be repaired and must be replaced. Below are situations where direct tire replacement is necessary: 1. Tread area (crown): When the puncture hole diameter exceeds 6mm. 2. Bead area: If the bead or tread is deformed, the rubber is corroded, or the tire has been damaged due to running flat. 3. General condition: If the tire has been patched more than four times.

If a tire is punctured on the sidewall, it must be replaced and absolutely cannot be repaired. Every time I encounter this issue, I strongly recommend replacement because the sidewall is the weakest part of the tire, bearing the entire weight of the vehicle. Once punctured, the internal structure is compromised, and patches won't hold securely. When driving over bumps or making sharp turns, it can easily lead to bulging or blowouts, posing a high safety risk. I've seen many car owners try to save money by patching, only to experience blowouts on highways, causing accidents that cost several times more in repairs than a new tire. When replacing the tire, choose a reputable brand and ensure it matches the original specifications. Regularly checking tire pressure and wear can prevent problems before they occur, making driving safer. In short, life is priceless—this is not an area to cut corners.

Should I patch or replace a tire with a nail in the sidewall? From an owner's perspective, replacing the tire is the safer choice. Sidewall repairs are difficult and often not durable; it might hold air temporarily, but after some driving, it could start leaking or even rupture, posing higher risks than tread damage. Patching costs just tens of yuan, while replacement runs into hundreds, but economically speaking, a blowout could lead to much higher repair costs. If you want to save hassle, have a professional shop assess it—if the nail is deep and the sidewall damage is obvious, replace it immediately. Don’t delay; driving on a damaged tire disrupts daily commutes. Also, try to avoid parking in areas with debris, and regular tire checks help spot issues early. Safety always comes first—don’t risk big losses for small savings.

If the sidewall of the tire is punctured, don't consider repairing it—replace it immediately. The sidewall is weak, and patches don't adhere firmly. Once on the road, it deforms quickly under stress, posing a high risk of air leakage or blowout. I've seen similar cases while repairing cars, and the recommendation is always to replace it directly. After changing the tire, calibrate the wheel balance to ensure smooth driving. Check the depth of the puncture; if the damage is severe, act even faster. Don't delay—safety comes first.


