Having left my 1999 slk230 sitting unused for 3weeks over Christmas when we had almost daily rain the blower fan is no longer working. I don't know where to find the fuse to check this out. I did notice some dampness in the passenger footwell and the indicators have now on a couple of occasions stopped flashing and remain on after initially flashing ok . I am assuming water ingress is causing these problems but don't know where to look. Any suggestions please.