The light failure warning problems are caused by the "Body Control Computer", according to my garage. My 147 has its refitted once, but it still has the problem - I'm still being warned of failed number plate, rear brake and tail lights when all is actually OK. I have read elsewhere in here that some people have required 3 or 4 new computers before it worked correctly. Just as a word of warning though, my car blew a dipped beam bulb (LHS) the other day, thing was it didn't let me know!! I only noticed when I pulled up behind somebody.