VIBRATION...Just going to live with it. Took it into EAS in Atlanta and got nothing for my 300. bucks. They said it vibrates because the idle is low and there is nothing I can do about it. Really? It idles at the first line above 0. Moves up slightly in "N".
The guy took apart the serpentine belt because he thought it looked unevenly worn, it wasn't , just the top because of the idler pulley. Then he did a smoke test, no leaks, no vacuum issues, then a scan / reader, no codes, no nothing. He did have fun driving the crap out of it on the 285. Even said he would buy it because it was in such great condition. BUT, alas, I still have a vibration, now out 600 bucks, new motor mounts and tranny/case mount, which happen to be in fine condition before the trade out. This is sad. SO, what's the deal with idle issues on X5 -3.0's? MAF AND ICV,which he cleaned up all work fine. Strangely it does vibrate less with the A/C on in "D" at stop. Good thing, it's about to get very hot here in Atlanta I am told, and the A/C works great. Don't think I 'll be going down the BM trouble U road again in the future. BTW, anyone suggest a fair price for replacement rear taillights - the right one is rotted out, already fixed it once. It's toast and I need a new one. Can I upgrade to LED or will I get the light on the dash? Suggestions for company? Ebay? Thanks to everyone for trying to diagnose this issue. Done throwing money at it for awhile. Enjoy the ride. Miss my E30 rags.

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X5 3.0 AUTO -2001 - 238,000 miles