Reprogram the Audi A4 B5 remote control

Hello. I am looking for how to schedule the car controls, they worked until the battery of both was over but when replacing them no longer obeyed
the battery to the car but the controls still worked later. Now I can open the centralized closure from the trunk and I can start the car with any of the keys.
If you have any solution or manual I thank you very much.

Good, there is enough information in the forums dedicated to the brand (Areavag, Audisportiberica, etc ...), asks there but they usually fail a lot. It has nothing to do with the closure even though they are in the same key.