Can a 4S shop repair tires?

[Allen]

4S shops can repair tires. If the tire is still under warranty and the repair is needed due to a quality issue detected, the repair can be done for free. However, if the repair is needed due to personal reasons, the 4S shop will not provide free tire repair. When repairing a tire, the appropriate method should be chosen based on the specific condition of the puncture: Plugging (for small, obvious punctures or emergency use): Plugging is the simplest and most straightforward method of tire repair. A plug is inserted into the puncture hole using a plug insertion tool. This method is relatively easy and does not require removing the tire from the rim. It is also cost-effective, but it is only a temporary solution and not very durable. It is advisable to perform an internal patch repair later, as long-term use may pose safety risks. Cold Patching (for medium-sized punctures): Cold patching requires removing the tire from the rim, locating the puncture, cleaning the area around it, and then applying a specialized patch from the inside of the tire to seal the leak. This method is similar to patching a bicycle tire but requires specialized equipment and patches. While this method can repair larger punctures, it is not very durable, and the patch may fail again after prolonged exposure to water or high-speed driving. Hot Patching (for medium-sized punctures): Hot patching is similar to cold patching, involving the application of a specialized patch over the puncture. However, it includes an additional step of using a heating machine to melt the patch and bond it to the puncture. The advantage of hot patching is that the repaired area is highly durable and unlikely to leak again. Hot patching requires strict control of temperature and heating time, especially for passenger car tires, which are thinner than truck tires. Improper heating or excessive temperature can damage the tire. Mushroom Plug (for large, irregular, or hard-to-repair punctures): This method uses a mushroom-shaped rubber plug. The plug is inserted from inside the tire, with the stem pushed through the puncture hole. The excess part outside the tire is trimmed, and the inner part is secured with special adhesive. The stem acts as an external patch, while the cap serves as an internal patch. Mushroom plug repairs take longer and are more expensive than other methods, but they offer better and longer-lasting results, making them the best tire repair option.