Well I guess the 24 viewers don't know either...I feel better now. The car has stayed out of limp mode and the warning light has not come back on since I posted the first message here. I have not been on a motorway but have covered around 80 miles locally. I will find out today if the fault returns ...

Hi everybody. This is my first post, so I will say sorry now for any protocol errors etc. I have just purchased an S80 2.5D 1999. It drives great. I have done around 400 miles in the four days I have owned it. Problem: At around 80miles per hour a warning light on the dashboard illuminates. It looks...