What does the orange light on the far right mean on a citroen Picasso?

have a scan on it most probably come up with p0400 code get some redex to clear out fuel system if not work its something to do with the fuel system

It could be a simple missfire. Mine did it a few years back because of damp weather.

Citroen charged me £35 to diagnose the problem but couldnt tell me what it was.

It is back on now and causes me no problems. It is just an engine management fault.

If your worried get it checked out but be prepared to pay for it.