quick intro..i have a 04 x5 4.8is silver 116k with the two tone suede interior (is it suede) but i have been having tranny isues for a while. The other day on the highway it wouldnt go into 6th gear and i couldnt switch the shifter over to manual.. when i tried it did nothing.also i have the hooting noise before it changes gear some times, and also when im slowing down to a stop its almost like i have to wait an extra second for it to down shift, cuz if i dont it would lunge forward when i hit the gas i gess maybe slamming into gear. well what should i have them do when its there should i do a flush and filter or is that wasting my money. and also where is the best place to get a remanufactured transmission, i cant sem to find one. any help would be great and if i knew how to post pics i would.