3rd fuel float in 6 months!!
 

The driver-side fuel float keeps breaking on the 4.6.

The last two times the potentiometer card was shattered. I havent opened it yet but that's probably the case again now.

What could be causing this?

Closest I could see online is Z3's having this issue because of clogged tank vent valves and charcoal filters?

Well, better late than never but found what was causing this a few years ago.

I mentioned this to a tech at a shop during unrelated work and it just so happened he has seen this before.

He said the bottom of the fuel tank has a small depression/divot that the bottom of the float assembly is designed to sit in

If the float assembly is not seated exactly there it shifts and this happens.

I had them install a new float right then and there and it is fine to this day.

Wow! Great that you found the problem and thanks for updating the thread :thumbup: