I'm fron the e39 board and I am experiencing revs while idling, and some have said it's not normal. Can you please read my post and see if your car does the same thing? Thank! It would be great if you could email the response to win1be1@excite.com The link for my post is below. http://bimmer.roadfly.org/bmw/forums/e39/forum.php?postid=256457&page=1