I have a '94 318ic...i've replaced the head light switch, dimmer switch, headlight bulbs, signal light bulbs and sockets, tail light bulbs and sockets, and yet im still having this problem. The dash wont light up along with the air/window controls, and now the turn signals wont blink on the dash or outside. the right signal light doesnt light up at all. i went from the right tail light not working, to the left tail light not working.
the dash and controls worked for ONE day. so right when i thought the problem was solved, the next day they were not working.
i'm not an electrician by any means but if someone knows what is up and how to fix it, leave a reply. otherwise its off to the shop for this guy.