Does a BMW Run-Flat Tire Need to Be Replaced After Losing Pressure?
2 Answers
BMW run-flat tires need to be replaced after losing pressure. Tire replacement time: It is recommended to replace tires every four years, even if the mileage is low during that period. Tires are rubber products, and prolonged use can lead to aging. Tire selection: When purchasing tires, always check the specifications and model, as well as the production date, speed rating, and load index. Most passenger car or SUV tires have "91V" marked on the side. After reinstalling tires, always perform wheel balancing to prevent abnormal vibrations at high speeds.
Honestly, I have way too much experience with run-flat tires losing pressure. Last time on the highway, I ran over a nail and the tire pressure warning light came on immediately. I stubbornly drove another 60 kilometers to the repair shop. When the mechanic took it apart, he said it had to be replaced because the sidewall support layers were completely deformed—just like a crushed cardboard box. The tire might feel fine with no visible bulges, but internally it's already damaged. These hidden damages are the scariest; the next time you hit a bump on the highway, it could blow out at any moment. Run-flat tires can indeed save your life in an emergency, but every kilometer driven on them is like slow suicide—don’t try to save money on this. After replacing it, I specifically learned from an experienced mechanic how to check for sidewall creases, and now I make sure to inspect them every time I wash the car.
