This light comes on after 5000 miles on my 1990 240 (US). On the 1990 model there is a little button on the lower right hand side of the instrument cluster. I use a small allen wrench to push it in - it needs to go quite a ways. A bent paper clip also will work. There is some magic sequence, I think that you need to hold it in while you turn on the key - at least this is the sequence that works for me.