Every now and then when I am sitting at a red light or even parked in my driveway, the X will start to run rough. Feels like it is missing or drops a cylinder. I shut her down and refire and everything is fine. This never happens when I am moving, only when running and at a stand still. I haven't had a chance to toss a machine at it yet to find out the code. I was just wondering if this has happened to somebody before and they may have an idea of what it may be.

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03' X5 3.0i auto (9/03)