Ok well...new control arms (front), bushings and ball joints didn't fix the issue. Now the tire place replaced all 4 tires and of course re-balanced and since I had the suspension work done, an alignment as well.

It's worse. MUCH worse. Now the entire car shakes starting at 25-30mph. A very pronounced shake.

Back to the drawing board as frustration mounts. I guess the next step is checking the tie rods and sway bars as mentioned above.

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2006 X5 4.8is