Audi a7 3.0 TDI QUATTRO transmission stuck in first gear.

[Rytis]

Hi guys,

I have a ''little'' problem with my Audi A7 transmission. I bought the car from auction and done a test drive. I've done less then half a mile, and within this distance the transmission was unable to shift the gear up from first one, when eventually  lost the first gear as well. No gears (including reverse) have been working. After a day I tried to go forward and back (a couple of meters) and the car was going, but didn't try longer distance to try to shift another gear. Did you have any similar case and (if yes), what did you do? 

Thanks for the answers in advance!