Ah, I hadn't realised, it's a switch, it's a switch that seem very difficult to get hold of, I'd assume run of the mill stuff like that was easily available fro EuroCar parts, no it had to come (eventually) from Germany.
Took the old and knackered on apart, the sprung contact(?) fell out, can't be arsed to figure out where it came from but the of white base on the half to the right hand side is showing some serious wear, dunno, 'electricks' aren't my forte!
Ian