Fuel gauge and range goes up if i put fuel in but doesn't come down

[Crezzlin]

2007 Leon Cupra 2.0 TFSI Does this sound like my fuel level sensor is sticking? If so can you change the fuel level sensor like a fuel pump on other cars? i can't seem to find any info on it. Thank You

 

[andylong]

If you fill it then it stays full for probably 50 miles or so, but after that the guage reading should drop. If it doesn't then the sender is probably sticking.
It's, as you might expect fitted to the tank and yes you can change it.
I would ask if it's not going down, how does it go up?