2008 BMW 335I Tires Problems

I HAD TO REPLACE TWO TIRE, ONE FRONT AND ONE REAR, FOR THE SAME PROBLEM. THE PROBLEM WAS THAT BOTH TIRES HAD SIDEWALL SEPARATION IN THE SAME LOCATION, WHERE THE SIDEWALL ATTACHES TO THE TIRE BEAD. *TR

TL* THE CONTACT OWNS A 2008 BMW 335I EQUIPPED WITH MICHELIN ENERGY LX4 RUN-FLAT TIRES, SIZE: P225/60R17. THE CONTACT STATED THAT THE TIRES EXHIBITED SMALL PUNCTURES AND WOULD BECOME FLAT FREQUENTLY. THE CONTACT WAS UNAWARE OF THE CAUSE OF THE CONSTANT TIRE FAILURES. THE FAILURE MILEAGE WAS UNAVAILABLE. THE VIN WAS UNAVAILABLE.

THE FRONT OE TIRES ON MY 2008 BMW HAVE DEVELOPED SIDEWALL BUBBLES. THE TIRES ARE BRIDGESTONE POTENZA RE050A, 225/40 R18. THIS IS INHERENTLY DANGEROUS. THERE ARE ALREADY SOME BRIDGESTONES WHICH THE COMPANY HAS RECOGNIZED AS FAULTY, THE ABOVE MODELS SHOULD BE ADDED TO THEIR LIST. *TR

SIDEWALL SEPARATION (RIGHT FRONT) ON BRIDGESTONE SIZE 225/40R18 REO50A ORIGINAL EQUIPMENT RUN FLAT TIRE AT 20,000 MILES. THESE TIRES SEEM PRONE TO DELAMINATION. VERY POOR TREAD MILEAGE FOR HIGHWAY DRIVING. WORN OUT NOW. UTQG RATING SEEMS EXAGGERATED AS I'M NOT IN STOP-AND-GO DRIVING MODE. THESE TIRES ARE PRICED $70+ TO $90+ PER TIRE MORE THAN NON-RF TIRES AND B'STONE HAS A VIRTUAL MONOPOLY....BMW N.A. ONLY PERMITS REPLACEMENT OF THESE TIRES AND IT REALLY HITS THE POCKET BOOK. CONTACTED B'STONE CONSUMER RELATIONS AND MET A BRICK WALL AS THEY KNOW THEY HAVE YOU OVER A BARREL. WROTE THE PRES. OF BRIDGESTONE AND NOT EVEN THE COURTESY OF A RESPONSE. *TR