One problem related to tire bubble has been reported for the 2012 BMW 328. The most recently reported issues are listed below.
Tl - the contact owns a 2012 BMW 328i equipped with goodyear efficient grip run flats tires, line size 225/45r/18. The contact stated that the front and rear passenger side tire developed a bubble on the side wall. The vehicle was taken to the dealer. The technician stated that the failure was caused by driving over a pot hole. The manufacturer was made aware of the failure but did not offer any assistance. The tires were replaced. The dot and the VIN numbers were not available. The failure mileage was 4,393 and the current mileage was 10,000. Kmj.