My fuel light has also stopped working, I ran out of petrol not knowing it had stopped so now I use the odometer to track my fuel usage. When I get to 480 K's I head for a petrol station as I will get no more than 502 K's from a tank, I found out the hard way on this one. The globe still works as it comes on when the ignition is turned on.
If I get enough enthusiasm to fix it I will probably have a play with my fuel gauge sender at the same time as the gauge shows empty at about 350 K's when I still have a fare amount of petrol left in the tank.