our X3 3.0i eml light illuminated this morning
the car was parked for 2 weeks then started yesterday for a few minutes to check if battery ok
fuel system cleaner was added prior to being parked for 2 weeks
car was run 40 miles today and runs fine but light stays on
i wonder if fuel cleaner causing filth to contaminate 02 sensor or maybe some other problem with car , any thoughts appreciated .