Hi all, so i purchased an A4 a few weeks ago and to put it nicely....its a bit of a shed!! But anyways it gets me from a-b So the only problem thats worrying me about this car is that the gears grind when moving to 3rd. I already know that this means the synchro is the most likely cause. Could anybody advise me if there are any cheap easy fixes to try before i go down the route of fitting a replacement SH gearbox? would changing the gear oil have any effect?