my buddy took his girl's '06 x5 4.4 (65k miles)out the other night when she was out of town. he cleared the cob webs out of it (if you know what i mean). anyways, check engine light came on. he took it to a garage and guy says report says #2 cylinder several misfires. car is running strong. no skipping, nothing. he called me in a panic today. i said try a system reset after that it's out of my league lol.