Driving home this morning I noticed the engine light was lit yellow. There were no notices or abnormal flags showing in Vehicle Status in iDrive. I made an appointment with BMW when I got home and took it right over to have it checked out. I was just informed that the cooling flaps/shutters under the front bumper are sticking and have to be replaced. Fortunately, they have the part so they are replacing it right now. Hopefully, this will fix the problem and extinguish the engine light. I'll post back when the job is done.