722.6 transmission woes. 97 e320 stuck in 3rd gear.

[Turbo E320]

I was on the industrial park road and my transmission was being absolutely retarded. First gear launch was great but once it started shifting it seemed to slip or try to shift again. But if I did full power pulls in the individual gears they would be fine. On my last 0 to 60-70 tuning run the transmission clunked into 3rd gear after a eventful range of rpms in 2nd gear. I immeadiately stopped and went to go home to check the tranny. When I took off I could tell the transmissoin was obviously stuck in 3rd and it wouldnt shift up or down. The transmission isnt making any abnormal noises. I havent driven the car since.

Ever since I got the car the transmission was a little wierd. When it was cold the first gear shift wouldnt happen before 3000. If you are in summer mode and the car kicks down to speed up, the car will hold the gear for a long while after you are done speeding up unless you flip the switch to winter. The car has 53800 miles on it. I finally get my engine problems sorted and now this...