You have to be like, "Holy Hannah! Go to the dealer and get the genuine part to properly complete this repair. I bought this for my BMW, installed it with no problems, no light came on. The BimmerLink application started, the light did not go out. Finally, after a few months of gently riding the beast, the lights went out. Like a miracle. Then they returned. Then they cleaned it up again. The warning lights on the dashboard have not come on for several weeks, but the transmission still does not