Bimmerfest - BMW Forums - View Single Post - How do our RFT's really work? You actually should drive on em if a flat occurs?
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Old 02-26-2013, 08:37 PM
alewifebp's Avatar
alewifebp alewifebp is offline
Officially Welcomed to the 'Fest
Location: Northern NJ
Join Date: Sep 2008
Posts: 1,203
Mein Auto: 2014 550i
I knew right away when my OEM RFT went flat after I hit a pothole. Besides TPMS informing me, the car was harder to drive and was also very loud. It did allow me to get home and to the dealer the next day. Of course, they didn't have a replacement in stock, but that's a whole other story. So it was usable, but not very.

By comparison, I reported in this forum when I hit another pothole. This one was hit at a much higher rate of speed, and was with my then new Michelin Pilot Sport A/S Plus tires. Wouldn't you know it, besides some additional vibrations, the car was still plenty drivable at high speeds, but developed a bubble. I shortly got that replaced as well. Long story short, the conventional tire had a better degradation than the run flat. YMMV.
ED on 7/18/2014: 2014 550i, Space Gray, Mocha. M Sport, Cold Weather, DAP, Executive, Lighting
PCD on 9/6/2011: 2011 550i, DSB, black/oyster. Prem 2, Conv, Ventilated, HUD, Sport, DHP, SAT
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