
It is recommended not to pull out the nail by yourself. Instead, drive the car to a professional tire shop where trained staff can remove the nail and inspect the puncture. Here are some tips for car tire maintenance: 1. Check tire pressure: Neither too high nor too low pressure is good. Adjust it appropriately according to the situation. For example, when the road is slippery or the weather is hot, the pressure should be lower, and the tire should not be overinflated. When the temperature drops suddenly, the tire pressure must be replenished to cope with low-temperature road conditions. 2. Check for tire damage: Carefully inspect for possible tire cracks, uneven wear, or rim cracks, and replace them if necessary. 3. Regular tire rotation: The front and rear tires bear different weights and wear unevenly. Therefore, after a certain mileage, rotate the front and rear tires to maximize their use and extend their lifespan. 4. Pay attention to the distance between the tread and the wear indicator: Generally, if the distance is within 2-3mm, the tire should be replaced. Additionally, if the tire is punctured on the sidewall, the owner must not follow the advice of quick repair shops to patch it but should replace the tire immediately. Otherwise, the consequences could be severe. Since the sidewall is very thin, it cannot withstand the weight of the car after repair and is prone to blowouts.

Once on the highway, I heard a tapping sound from the tire. When I got out to check, I found a big nail stuck in it. I was so scared my hands were shaking, and I quickly moved the car to the emergency lane with the hazard lights on. The mechanic yelled over the phone: 'Whatever you do, don’t pull out the nail! Pulling it out will make it lose air faster and could even cause a blowout. Right now, the nail is actually plugging the hole. Drive slowly to the repair shop and check the tire pressure every twenty minutes on the way.' In the end, it cost me eighty yuan to patch the tire. The mechanic said if I had pulled out the nail then, the whole tire would have been ruined. So, if you see a nail in your tire, remember to check for leaks by applying soapy water to the spot. If it’s leaking slowly, you can drive to get it patched; if it’s leaking fast, you’ll have to call a tow truck.

Last week, while dropping my child off at school, I noticed a screw had punctured the right front tire. I called the 4S store, and they said the screw could temporarily act as a plug if not removed. First, check the tire pressure monitoring value; if there's no warning, drive slowly to the repair shop. If the screw punctures the sidewall, it's troublesome because that area can't be patched and requires a new tire. Don't follow the online DIY method of injecting sealant strips—it's unsafe. Later, I had the shop perform a wheel balance, and the technician said leaving the screw in saved me over 200 yuan on a new tire. This tire can still run for another 30,000 kilometers.

The location of the nail puncture is crucial. If the nail is in the middle of the tread, you're in luck—usually a mushroom plug repair will suffice. However, if it's near the shoulder or sidewall, don't drive at all. These areas experience significant tire flex, and continued driving can cause the cord layers to tear. I once rescued an Q5 owner who pulled the nail out themselves, only to have the tire come off the rim halfway. Remember two key points: leaving the nail in can slow the air leak; use a tire pressure gauge—if it drops less than 0.2 in half an hour, short-distance driving is possible. For repairs, hot patching combined with a mushroom plug is three times more reliable than using a rubber strip.

When I first got my driver's license, I foolishly pulled out a nail from a tire too. Now I understand how intricate tire construction is: six layers of cord fabric with an airtight layer in between. The nail happened to plug the puncture. Once pulled out, air rushed through and split the cords, flattening the tire in minutes. Once, a neighbor's car had a nail in the tire, and I advised them to take a photo of the nail's position with their phone: if it's straight up, it's repairable; if it's at an angle, the sidewall might be damaged. Nowadays, new self-sealing tires aren't afraid of punctures, but for regular tires, a proper vulcanized patch is still the way to go. Remember to do a wheel balance after patching, or the steering wheel might shake at high speeds.


