- Flip the metal key open.
- Using a little screwdriver, press the key’s back cover.
- At the keyfob’s end, lift the back cover.
- The battery is within the back cover, which you should remove.
- The positive side of the battery should be noted as you remove the battery.
What occurs if the battery on an Audi key dies?
Early Audi vehicles lack a Start/Stop button in favor of using a slot in the dashboard. To start or stop the car, one must push the actual fob. The car will already detect the key fob when inserted, even if the battery is dead.