skipping shifting... on 2004 BMW X5

When traveling from 30 to 50, the transmission acts like it wants to shift, but only (hiccups). Any ideas?

Asked by for the 2004 BMW X5
It is best to have a transmission shop or garage familiar with BMW vehicles check out this problem to determine if is transmission mechanical, transmission electrical, or even engine related. BMW do have a Service Bulletin SI B 24 13 07 regarding poor electrical connection at a main transmission electrical connector.