My 2011 BMW 535i xdrive had an oscillating vibration felt in seat and headres 70-75 mph and it never went away with new tires, new rims, countless road force balancing, etc. I sold the car at 15,000 miles. Only had 1 year with it and it was hell. I am not very confident in BMW anymore. I still have a 2008 BMW 3 series coupe and its perfect.
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