Strange noises

[Jess8]

Hello everyone,

I’m new to this and was hoping to get some advice from the Audi community 😉 I have an A3 TDi manual and I’m getting a high pitch noise when I accelerate and decelerate. I’ve taken in for a check and they found nothing. The other day, I could feel the gearbox not feeling right, then all of a sudden couldn’t get it into gear. After a few tries it got into gear. I haven’t got a clue but was told it could be the transmission fluid that needs filling, however I think it’s more than that. Does anyone have any ideas what it maybe?

Thanks everyone 😊