Sometimes. Whether you can patch a run flat tire depends on where the damage sits, how big it is, and whether the tire was driven while flat, and a bulge in the sidewall fails the first test outright. That matters on a BMW, because a run-flat is built to keep rolling after it loses air, which can hide how much harm a pothole or a nail has done. November makes it worse around Pontiac. Cold mornings drag pressures down and trip the TPMS light, while the first freeze-thaw cycles open potholes along Woodward and M-59. Quick Summary: Key Takeaways Tread punctures may qualify: industry guidance limits repairs to the tread area and to holes no wider than 1/4 inch. A sidewall bulge is never repairable: it sits outside the tread zone that repair g [...]