About 3 weeks ago on a warm Saturday we decided to go for a ride in the late afternoon and stop at a restaurant for tea. Mary for some reason said "Ït doesn't matter if we go a bit later, we have got lights to come home in the dark".
Well that jinxed it. We came out of the restaurant, started the bike ...and no lights !!
We managed to get home by me holding my thumb on the headlamp flasher all the way. Fortunately the park lamp position still worked so we had a taillamp.
The switch and the connected relay had both failed. New items were obtained from the UK in 6 days and then came the task of fitting it.
BMW wiring is complicated, but very logical it's just that it is all crammed into the headlamp shell.