2003 3.0i Transmission issue

[Kunphuzi0n]

I bought a x5 about a month ago and the past couple weeks the transmission has done something strange: In the mornings, or after the car sits for a number of hours (about 12) we will reverse out of the garage and put the car in drive and it will not go into first. If we accelerate it will just rev and do nothing for a second or two then slam into gear. If we put it into manual it will go immediately into gear without any problems. After that it will shift all day with out any problems until it sits again. I took it to my mechanic and the transmission fluid was about a quart low (whomever worked on the car last left the bold partially screwed into place) and topped it off. It has only been a day, but this morning it did the same thing.


Anyone have any ideas what could be the trouble? Am I screwed and need a new transmission or could it be just software problems? or any other less expensive problems? I have searched and couldnt find my specific situation, thanks so much for those that reply!!!