Stronic gear box problem

[GoGo2]

Hello all.
My 2015 A6 Ultra Stronic gearbox seems to have seized. Returning home other day and it lost abit power after a sudden stop. Had to pull in and restart car. Issue now was having difficulty going forward which got me home after half km of increased engine revs. Then couldn't reverse.
Turned it off for awhile and finally able to reverse it into my driveway. Would anyone have an ideas?? Thinking transmission fluid. No dashboard warnings came up when issue started. I fear that this could be a big problem and expensive one.
Thanks.

 

[Gazwould]

Codes ?

 

[GoGo2]

Codes ?

Couldn't find them. Looked at manual, side of engine and spare wheel hub. Anyway have someone coming look at it. Thanks for your reply

 

[ChrisYe]

Weird how no error on the dash board. When I had gearbox issues it came up as a warning.

Best people to speak to on gearboxes is Milta Technology just outside of Bristol.. not sure where you are based though.