My E90 325i running on run flats had a screw in the driver side rear tire. The tire indicator came on the dash (No iDrive) indicating that there is a puncture. I took it to the tire shop as soon as i could, not over running the stipulated km/h and km's. The tire guy said that the run flats had to be patched from the inside. Done and dusted, the tire indicator on the dash, inspite re-setting does not go away, the tire pressures seem to be normal :stupid: . HELP?! Thanks mates.