I have just finished installing my smokin' new 2L in my 79 320i(giddy as a schoolgirl when I first heard it run!!!)However, on the second day, I was very excited to drive it, only to discover it wouldn't start! Diagnosed the problem as ignition switch(electrical side). My question is, how does one go about replacing one of these? I have done countless VW switches, but never BMW. Please help, Al PS all I wanted to do was drive it. It has been off the road since november99!