Fuel tank pump issue, level sender issue

[getty150]

Originally Posted by andrewwynn

Some of the top points
6) there is a design defect that will eventually cause that Siphon jet to fail. Usually by 15-17 years or 130,000 miles. That can be fixed for a couple $ vs. replace the whole pump
7) when that fails you will fuel starve the engine when about 1/4-3/8 tank
8) once you are lower than about 28L of gas the car only "sees" about 5.0L of fuel, about 3.6 of that is not registered on the gauges.

Tell me more about this please.
Fixing this for less monies.
I'm experiencing the 1/4 tank situation...I just changed out the fuel pump. But I don't want to experience this in the future...she has the e83 x3.