I went to my dealer today, and they said there are two software to upgrade.
Those softwares are pulished on this month.

1. EC computer upgrade & decode. (It modify the injection perfomance.)
2. New version of the Gear Box. (Reduce the socking when the car is stopping)

Now it seems to be running more smooth than before, and i feel the engine perfomance is a bit better than before.

Please check with your dealers.