:madGot a 3 inch nail in my back runflat sidewall yesterday. I noticed it when I got home. How the hell it got there who knows. I pulled it out and it did stick in enough to puncture, (Very Slow leak). BMW quoted me $397.50 plus $30 for labor for a new one. Is it safe to go cheaper and go to a local tire store? The car is under warranty, will I void anything if I don't take it to BMW? Also the car has just 10k miles on it. I hope they don't tell me I need to change both back tires.

It's unlikely that you will find anyone willing to repair a sidewall puncture, whether runflat or not. I would order a replacement from the tire rack and then take it to good installer who won't scratch your rim putting it on. That's probably about the best you can do, unless you can find a used tire somewhere.

Or if you don't mind living dangerously, you could plug it yourself with one of those cheap tire repair kits they sell at the auto parts stores. It might work.

You've stumbled upon the hard luck way to switching to non-RFTs. Just shell out and do it, with the realization you were going to do it sooner or later anyway.

Sell your 3 good RFTs on Craigslist or the black market here to recoupe some capital. I just sold my whole runflat set.

did you sell them locally or to someone willing to pay for shipping? i have a set that i need to sell asap.

:madGot a 3 inch nail in my back runflat sidewall yesterday. I noticed it when I got home. How the hell it got there who knows. I pulled it out and it did stick in enough to puncture, (Very Slow leak). BMW quoted me $397.50 plus $30 for labor for a new one. Is it safe to go cheaper and go to a local tire store? The car is under warranty, will I void anything if I don't take it to BMW? Also the car has just 10k miles on it. I hope they don't tell me I need to change both back tires.

My Z has 16300 miles on it and I got my right rear run flat patched due to a nail in the tread by Goodyear 1000 miles ago. Now it was not a plug but an inside patch and the tire pressure never got below 17 psi. Bridgestone refused to fix it. I'm happy. No new run flat. When these tires go, I will switch to conventional tires with a mobility kit.