Hi Jimmys 530i,
I love these names.... the transmission fluid was changed two months ago, that was the first thing another mechanic did when it first went into limp mode. The german repair mechanic checked the fluid a week ago and it was half a quart low, it's not leaking out, where did that half quart go? or maybe the first guy didn't fill it up? We've changed the parts, the fluid was changed recently and the battery is fine, what else is left to check, what would the dealer check? By the way, I asked him if I should go to the dealer for a diagnostic, he says he has the same machine that the dealer use. I'm keeping my fingers crossed that I can get through New Years day without my baby going into limp mode, wish me luck!