That may not be a run out problem. Normally warped discs or discs that are out of tolerance will will create a shake throughout vehicle speed. I mean even if it was .005 out, you probably still wouldn't notice it.

Looking at the info, you have an 03 with 66k miles... hows the suspension? People experience vibration in the higher speed ranges and then dissipates when the speed drops below a certain value. That is normally attributed to a suspension component. Normally at higher speeds, the Swing control joints are shot, causing instability. Also the Tension strut could also be to blame. While they make look good, internally, they may be shot.

Hope that helps.

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2011 E70 50i M Sport