Focus mk4 sync 3.4 clima Help?

[cpelo]

I want to put the weather in the sync of my focus mk4, the sync it carries is 3.4.I have read several posts and seen several videos and my module 7D0-01-02 does not match those of the post and video, 7D0-01-02 XXXX-X3XX-XXX as it says you have to put the 3 and in my module comes the 3rd place