Volkswagen: Gas light on for no reason, fuel sending unit, two tanks

Question
Hello,
So I have a VW 1999 beetle, i bought it second hand and the electrical problems are a nightmare! I filled up the gas tank about 2 days ago to full. Today when i was off to work, my carp beeped when i started it and it showed that my gas tank was empty. This is wierd because yesterday it was on full. There were no leaking oil stans anywhere in my driveway. As i began driving to the subway station, I noticed that the needle went back to where it was supposed to be to indicate that i have full gas, but the light is still on? Is this common? Easily fixed? What could be the reason for this?
Thanks

Answer
Hi Jimmy,

There is a fault in the fuel sending unit circuit.  This is not a common problem.  There are only two things you can do prior to bringing it to a trustworth repair facility:

1) Ensure that the cap is on tight.

2) Put 2 (TWO) containers of a high-quality fuel-system cleaner into the tank, to see if it will clean any gum off of the sending unit.

During this process, monitor your fuel consumption with your trip meter to ensure you do not run out of fuel.

Best of luck and let me know if this works.  (you will have to wait two tanks)

Ron