How to Repair a Run-Flat Tire?

[MacSimon]

If a run-flat tire is damaged, the repair methods are the same as those for ordinary tires, including automatic tire repair fluid, plug method, hot patch method, and mushroom plug. The specific methods are as follows: 1. Automatic tire repair fluid: Using automatic tire repair fluid is one of the commonly used methods for tire repair today, as it is relatively fast and simple. When using automatic tire repair fluid, you only need to inject it into the tire's valve stem, and the tire will automatically inflate and repair itself, making the process straightforward. 2. Plug method: The plug method is a traditional tire repair technique that involves using a plug to seal the punctured or damaged area of the tire. This method is cost-effective, but the plug may loosen over time. 3. Hot patch method: The hot patch method is the most traditional tire repair technique and is commonly used for large trucks. When using this method, the tire must be removed, and a raw rubber patch is applied to the damaged area and heated until it fully adheres to the tire. 4. Mushroom plug: Using a mushroom plug for tire repair is simple—just insert the mushroom plug through the damaged area of the tire and secure it in place.

[VonEzra]

How to repair a run-flat tire if it gets punctured? I've researched this myself as I drive frequently. Run-flat tires have a reinforced layer that can support the car for about 80-90 kilometers even when deflated, but repairs must be done carefully. You can't just patch it or use tire sealant like with regular tires, as this might damage the internal structure. The specific method involves first checking the size and location of the puncture. Small holes, like those from nails, can be fixed with mushroom plugs or hot vulcanization techniques, but larger cracks require replacing the tire. After repair, it's essential to check the tire pressure and balance, as the tire has borne heavy pressure while deflated, and improper checks might lead to air leakage again. It's best to go to a professional repair shop or a 4S store, as they use specialized tools to avoid safety risks. Don't attempt DIY repairs—if done incorrectly, it could cause accidents. While driving, always observe your tires and address any unusual noises promptly. Remember, run-flat doesn't mean unbreakable. In short, safety comes first—don't delay.

[DiJune]

Last time my run-flat tire got punctured by a nail on the highway, and I was lucky enough to drive it to the shop. The mechanic told me that repairing run-flat tires requires professional techniques because of their thick sidewalls—DIY patches can easily cause damage. He recommended finding a certified repair shop that first uses diagnostic equipment to check the puncture's depth and diameter. Small holes can be fixed with vulcanized hot patches, while larger ones may require a full replacement. The cost is usually higher than for regular tires, but it's worth it for safety. After the repair, a test drive of a few minutes is needed to confirm no air leakage. Also, if a run-flat tire loses pressure, don’t exceed 80 km/h, as higher speeds can worsen the damage. I always keep a portable air pump for emergencies, but I leave repairs to the experts. Making a habit of checking tire pressure monthly reduces the chances of punctures. This way, you save money and drive with peace of mind.

[ManuelDella]

Patching a run-flat tire requires special methods, don't attempt DIY fixes. These tires are designed to run while deflated, but their internal structure is unique - conventional patches or cold repairs may not work. First check the puncture size: small holes can be fixed with professional methods like mushroom plugs, but large damage requires replacement. After repair, verify proper inflation before driving. For safety, always take it to authorized shops where technicians can assess repairability. Don't cut corners to save money or time - it's not worth the risk if something goes wrong.

[StNova]

Fixing run-flat tires isn't as simple as regular tires - it requires extra attention. The repair method depends on the puncture size: small holes can be fixed with hot melt adhesive or specialized patches (costing around 100-200 RMB), while large cracks mean immediate replacement for hassle-free solution. We recommend visiting brand service centers as they're familiar with various models. After repair, always check tire pressure stability and wear condition to prevent recurrence. When driving daily, avoid potholes to reduce puncture risks. Cost-performance wise, regular maintenance proves more economical than repeated repairs.