Bucking as in jerking when changing gears? That would be transmission related and could be due to low fluid level or a software update is in order.
Clogged fuel filter would cause loss of power and premature pump failure. Ask how I know!! Lol!

Almost everything on the X can be done DIY if you have the tools and time.

Good luck!

__________________
"I can’t understand it. I can’t even understand the people who can understand it"

Queen Juliana (1909-2004), of the Netherlands

"If you choose not to decide, you still have made a choice!"


2004 X5 4.8is Imola Red-228K ZF-GA6HP26Z-Sold
2006 X3 3.0i Mystic Blue-175K, ///M pkg 6-Spd Manual- Trading in 6/10/17 for a Mini too!
2003 Silver X5 3.0- sold
2000 VW Beetle 1.8 turbo-165K- Totaled 9/11/16