How can I access the battery of an Audi A2?

I am trying to replace the battery of my Audi A2 but I cannot seem to find it. Any help would be greatly appreciated.

To access the battery of an Audi A2, you first need to remove the trim on the side of the driver's seat. Then, using a socket wrench, remove the battery cover and disconnect the negative terminal first before disconnecting the positive terminal. Be sure to properly dispose of the old battery and replace it with a new one of the same size and voltage.