Hi, I have a 2006 beetle AT, when pressing down gas and maintaining the rpm around 1700-1900, there is a rattle sound at the front right. Everything is normal and there are no strange noise after 1900 rpm or bellow 1700 rpm. What issue could there be? Thank you

I have a 2006 Beetle vert 09G with only 28k miles. It does this weird thing between 3rd and 4th where the RPMs go up and down twice before shifting. I think it's slipping although there is no jerking... all gears shift smoothly. I just had the valve body replaced (for a seperate issue) and was...