Yesterday for the first time I got this light upon starting my Sprinter. 3 or 4 start/stop cycles with a little driving in between and the light was still remaining lit. This morning the light went out on startup. I have 49 miles left b4 100,000 miles so anything warranty wise either factory or Extended that I purchased will die after I leave the dealer. Will whatever code that was thrown still remain in memory even if the light is out? They had it a couple m's ago looking for a noise that was probably RSN, and said it threw a code at that time. They wound up replacing my number 2 glow plug. They never really did anything else at that time except scratch their heads and say that they could not find anything else. I want to deliver it to the dealer tonight as that way they get it as cold as possible in the am when they look at it. I think I will not leave the keys so they have to wait for me in the am before they can get into it. It really seems to run much better after it is warmed up.