Hello and please help! I have a 2021 Q5 with 15k miles. For a few months whenever I fill the tank, I can only add about 6 gallons at a time. The gauge to show full only goes to about 260 miles or about half tank. From there, the gauge drops to about 189 after driving for about 15 miles. Then, it’s a matter of a few more miles and he gauge sinks to zero.

I took the car to the dealership but the tech said there is nothing on diagnostics that shows anything wrong. I am terrified to drive the car when the bells and whistles are going off screaming 0 gas in the tank! Has anyone else had this problem?