First of all, if you want the correct answer, ask the right person. The check engine light can be commanded on by emissions related items as well as the power train componants. There is a bulletin from BMW about this and involves replacement of the "chip" that is inside the EGS module. If there are faults set, they will be in the memory and can be read out with the BMW software. The VIN would also help with this diagnostic, please repost with these data.
Thursday, April 10th, 2008 AT 3:42 PM