The car has done just under 40,000 miles. I replaced the indicator/light stalk unit about 3 years ago (have done no more than10,000 miles since).
Now both indicators have stopped working. There is no noise from the flasher unit. Everything else still does work Hazard lights and headlights.
I would expect the stalk to last longer than this, and assume it is not a fuse as the hazards work.