Hi, my name is***** your mechanic automotive expert, and I will be happy to assist you today. In some cases, I may need more information to assist better. I apologize for any delay and would like to know whom i am having the pleasure to chat with.
Dear customer, what would worry me the most in your case is a deprogramming of the electronic electrical system of your Audi. First, I would check how the fuses and relays are first, but it seems to me that you already did it.
At this point, I would perform a simple reset of the factory data, the Audis have this detail that sometimes can be misconfigured and when doing a factory data reset, it brings without diagnostic equipment, nothing of the other world is solved and it is not that you have to go to the dealership any multi-brand garage with Vagcom software can do it.
About the central locking system, as it has already checked the relays, it would go through the solenoid on the door.
I hope this info to be helpful, my goal is to give you the best advice i can, I hope to be helpful, if you have any doubt or want to know anything else please do not hesitate to reply back.
Kind regards, Sebastian.