Possible Electrical problem
 

Hi everyone, wondering if anyone could help..
I have a 2010 Audi Q5 premium plus and about a week ago i noticed when i locked the car with the master key i did not hear the confirmation tone, but the car was locked and the mirrors retracted, i did go to the central locking menu and did everything i was suppose, as well i noticed that the fuel filler flap is not locking with the automatic locking settings.... Thank you in advance...