Originally Posted by Mshuaib

Which set of fuses? And where are they located?

Much Appreciated! I have the same issue with my MK1 2001 225 TT

Originally Posted by Jeremyeccles

Reviving an old thread because I found it first before I found a solution. In case anyone else ends up here looking for a solution to the issue of the fuel gauge always showing full here it is:

1. Pull the fuse for the fuel pump.
2. Turn the ignition key to on (without starting the car).
3. Turn the ignition off.
4. Put back the fuse for the fuel pump.

This will reset the computer, and you should have a fully functioning fuel gauge again.

For what it's worth, this happened to me when I accidentally pulled the fuel pump fuse instead of a different fuse that needed replacing. I put back the fuel pump fuse without turning the ignition on and off, and it somehow confused the computer responsible for reporting the fuel level.