It is technically nearly impossible to repair must punctures on run flats, as by the time the driver notices, the side walls are invariably destroyed.Easily repairable. Be aware though that some tire shops do not repair run flats. You might have to ask around for a shop that does it. At least that's been my experience with my BMW w/ run flats.
This has not been my experience as modern cars are equipped with tire pressure monitors (TPMS), which alert the driver of sudden decrease in tire pressure. I've had two flats on the BMW, got the alert both times and proceeded cautiously (about 50 mph) to the nearest shop. In the first case, I had to drive for 20 miles before finding a shop that was still open that late of night. In the 2nd, I drove about 10 miles before finding a shop that would fix the flat. Both times the flats were fixed with a patch. I was able to put another 25,000 miles on the tire from the 1st incident before replacing it due to low tread.It is technically nearly impossible to repair must punctures on run flats, as by the time the driver notices, the side walls are invariably destroyed.