-
Check the T5 forums (UK) lots of info, a few companies making parts for them, one issue is there is a bearing support that protrudes into the bell housing and they are known to crack or develop play in that bearing, massively affects 5th and 6th before anything else though. I think the original cv shafts are inherently weak, not sure if vw fixed that with the face-lift vans, I hear a lot of people have wobbly cv joints, can cause a lot of damage if they are left to go all the way to failure
Could you elaborate on this please? Specifically for a T5.1 6 speed box from a 140ps? I’ve had no problems but if you think it’s likely, what fails and how can the box be improved?