What is happening to BMW

[texvette]

This is my 5th BMW, 3 series, 5 series, now the X. The other have been trouble
free compared to the X. Law of averages, just time for a lemon.

Beginning to think as some mentioned part of my problems with mileage is the
Regen cycle. Its been filled 3 time, 4 if count the factory fill. In 15,000 miles.
One suggested why mileage low is the vehicle is staying in Regen cycle too often.
Ever since purchased hear a pump sound coming on. Some say they think its
what pumping the fluid from the tank. It comes on at least once during a drive
something quick sometimes runs for a while. Service at BMW says no code
is being shown, so not much they can do.