How To Replace Audi A5 Key Battery. On the back of the key press the button marked A and at the same time pull the key blade out of the fob. To fix these problems change the battery on your Audi key fob.
The average price of a 2013 Audi A5 battery replacement can vary depending on location. On the front side of the key press the button markerd arrow and B and at the same time pull battery. Press the shell on until it snaps.
Locate another small button at the front of the Audi Fob remote.
Got the same warning 1st time I used it. Press the release button A and remove the mechanical key from the remote control key. Simultaneously pull out the battery carrier from the remote control key. Pry the cover red arrow with your fingers as shown in image A.
