No jump from pushing the throttle but from simply releasing the brakes like after a red light turns green... I got an SIB update for that and it seems to have fixed it. I don't think 3.0s have any problems other than the same acceleration lag as the 4.8 once you depress the pedal. Just not very responsive, but is with DS mode.

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr