The headlight switch has a small orange clip in it which keeps it in place when you put it on dip and beam, mine broke but rather that spend money on replacing it with a new unit I found the same Lucas part on a Mini in a scrap yard. People will probably reply saying that the Mini headlight dip/beam unit will not fit over the DeLorean steering column which is true but the plastic clip on the Mini switch unit is the same and can be put into the DeLorean switch. The only difference I found was that the piece of plastic was yellow rather than orange. There are a couple of springs in the switch unit when you take it apart but if you take it apart slowly nothing should fly anywhere, it is one of those jobs you want to do at the breakfast table rather than in the work shop. On the first page of my home page www.dmc12.co.uk you can see the orange transplanted component I did document the job in great detail but sadly I have lost the pictures. Anyway hope this helps. Regards James Rg England