How can I reset my Audi A2's central locking system?

I recently brought my Audi A2 to the mechanic for a routine check-up, but now the central locking system doesn't work properly. The doors won't lock or unlock with the key or the remote. Is there a way to reset the system so it works again?

To reset the central locking system on your Audi A2, first make sure all doors and the hood are closed. Then, insert your key into the driver's side door and turn it to the lock position. Press and hold the unlock button on the key fob while turning the key back to the unlock position. Release the button and remove the key. The system should now be reset and working again.

One method to reset your Audi A2's central locking system is to disconnect the battery for about 10 minutes, then reconnect it. This will reset the system and allow it to relearn the key fob signals. Remember to reset your car's radio station presets and clock after disconnecting the battery.

If the above methods don't work, there may be an issue with the central locking control unit. It's recommended to bring your Audi A2 to a certified mechanic for further diagnosis and repair. They will have the proper tools and knowledge to handle any potential electrical issues.