I took my Jetta to a service place once when i bought it and they advised me to change all fluids including tranny so i listened, after they did that , 2nd to third will grind everytime i shift to it down shift or up shift, so the mechanic told me i need a tranny , not a clutch , not need to check it , no, it needed a new transmission , as back then i couldn't afford new tranny , and i just bought the car , i wasn't going to change it and was going to drive it till i afford the parts, for some reason tho , i took it to a different branch of the same service company , and they found out that the prior location had forgotten a clip on after they change the tranny fluid and that was the reason of it grinding, the point of the story , the dealership isn't always the best place to go check your car , if it grinds from 1 to 2nd but nothing else, i'd have so many people check it before i take the dealer's " we need to change .... " word.