I've had a vibration problem with my 146 for a while now. It started by appearing under heavy loads/high speeds (80km/h+) while accelerating or going uphill. The cars done just over 80kkm.
Now it's most severe under engine breaking.
Gear change is a little rough and getting it into 2nd when downshifting is the roughest, followed by getting into 5th.
It recently had a full service and belts replaced.
I took it to a garage to get the vibration checked out, the guy was not experienced with Alfas, but he did suspect the engine mounts. He claimed he checked them out and thinks they're fine.
Another guy at an Alfa dealer told me that the shafts were not good and he couldn't say that with 100% certainty.
Anyone got any good ideas about this?